HumidCalc

Name: HumidCalc
Rating: 5.0 (1 reviews)
Author: yoshihito sakagami

by yoshihito sakagami

iPhone

Active Last checked 31 Jul 2026

App Store ↗

Quick verdict

What it is: Store information collected; independent summary not yet available.
At a glance: Free to download

Categories and search queries

Official categories

Weather
Utilities

AppCorpus categories

Key functions

Function	Availability	Access	Scope	Evidence
Free app	Yes	Free	—	Store published

Screens

App Store

9 store screenshots

Pricing & paywalls

App Store

Shown for US

Free

Last verified 31 Jul 2026

Ratings & reviews

App Store

Shown for US

5.0 1 ratings · App Store

5/5Good features, needs more info
First I wish there was a paid option to not have ads. More importantly, I like the specific features but need more background on how some things are calculated. WBGT is 'estimated' but how? That is far from easy to do right. And what is the discomfort index reported? And there is no way to ask . Developer, please consider an update with info, And perhaps an ad free upgrade, and a way to ask such questions. Update (4/5/17): developer responded via App Store, thanks! But still have questions: how is WBGT estimated, and what discomfort index is used? Thank you. Update: 4/15/17. Thank you to the developer for the details on the wbgt estimation. The globe temperature is the hardest to accurately estimate, but thank you for listing your equation. Also thanks for listing the discomfort index equation in your app. I appreciate your support and use your app. Excellent post script- I give 5 stars now.

Tx9753 · 31 Jul 2026

Privacy & accessibility

App Store

Privacy

Data Linked to You — Third-Party Advertising — Diagnostics — Performance Data Developer declared
Data Linked to You — Third-Party Advertising — Identifiers — Device ID Developer declared
Data Linked to You — Third-Party Advertising — Location — Coarse Location Developer declared
Data Linked to You — Third-Party Advertising — Usage Data — Advertising Data Developer declared
Data Linked to You — Third-Party Advertising — Usage Data — Product Interaction Developer declared
Data Linked to You — Diagnostics Developer declared
Data Linked to You — Identifiers Developer declared
Data Linked to You — Location Developer declared
Data Linked to You — Usage Data Developer declared
Data Not Linked to You — Third-Party Advertising — Diagnostics — Crash Data Developer declared
Data Not Linked to You — Diagnostics Developer declared
Data Used to Track You — Diagnostics — Crash Data Developer declared
Data Used to Track You — Diagnostics — Performance Data Developer declared
Data Used to Track You — Diagnostics Developer declared
Data Used to Track You — Identifiers — Device ID Developer declared
Data Used to Track You — Identifiers Developer declared
Data Used to Track You — Location — Coarse Location Developer declared
Data Used to Track You — Location Developer declared
Data Used to Track You — Usage Data — Advertising Data Developer declared
Data Used to Track You — Usage Data — Product Interaction Developer declared
Data Used to Track You — Usage Data Developer declared

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Accessibility

No accessibility labels collected yet.

Versions

App Store

1.0.3
- When you measure the atmospheric pressure in the iPhone6 and iPhone6Plus, it was to display the indicator circle until the measurement results. - Other, fixes minor bugs.
1.0.4
- Since the format of the received data of weather information has changed, now they support it. - Other, fixes minor bugs.
1.0.5
- Fixed the problem that the screen collapsed on some models.
1.0.6
- Minor bug fixes. - Other Addition of discomfort index and WBGT glossary to "Description".
1.0.7
- The dry-bulb and wet-bulb temperatures picker view bug fixes were made. - Other Addition of discomfort index and WBGT glossary to "Description".
1.0.8
- Fixed of the bugs to abnormal screen occurring when it is receive Fahrenheit temperature data from the "Calculator of Air" .
1.0.9
- Minor Bug Fix. Fixed when this App of use in iOS10 devices a problems occurrring that some of the text display strange by the when used for Japanese language environment or Traditional Chinese language environment.
1.1.0
- Fixed bugs the application name does not display properly in English environment. - Inserted an advertisement of the sister application "Calculator of Air" in the application.
1.1.1
- Was changed the icon design.
1.1.2
- Fixed minor bugs.
1.1.3
- Fix bug in when trying to acquire weather information when radio condition is bad, the application crashes.
1.1.4
- Bug fixes. There was a bug where the application malfunction when acquisition of location information failed, so we corrected it.
1.1.5
- Bug fixes. There was a bug where the application malfunction when acquisition of location information failed, so we corrected it. (We also fixed the same problem when updating to Ver1.1.4, but since I could not completely solve the problem, we are fixing the same problem again.)
1.1.6
- Support for since iOS8.0. - Fixed some bugs.
1.1.7
- Partially corrected the description text in Japanese environment App Store. - Changed partially text in first 5.5 inch screenshot.
1.1.8
- Added support for iOS 15.6 and later. - Updated to comply with the privacy requirements introduced in iOS 14 (IDFA and App Tracking Transparency). - Optimized the UI for 6.5-inch displays on iPhone X and later models. - Updated the AdMob advertising SDK. - Added calculation and display support for frost point temperature. - VPD (Vapor Pressure Deficit) is now displayed alongside humidity deficit values. - Improved the numerical analysis algorithms, resulting in faster calculations and accurate computation of relative humidity and dew point even at extremely low temperatures (below -238°F / −150 °C). (For temperature inputs below −22°F(−30 °C), please use the companion app “Calculator of Air”.) Please note: This version is not compatible with older versions of the companion app “Calculator of Air” (version 1.1.4 or earlier). Users who rely on app integration are kindly requested to update “Calculator of Air” to version 1.1.5 or later.
1.1.9
- Fixed minor text issues in the app. - Updated to comply with the privacy requirements introduced in iOS 14 (IDFA and App Tracking Transparency). - Optimized the UI for 6.5-inch displays on iPhone X and later models. - Updated the AdMob advertising SDK. - Added calculation and display support for frost point temperature. - VPD (Vapor Pressure Deficit) is now displayed alongside humidity deficit values. - Improved the numerical analysis algorithms, resulting in faster calculations and accurate computation of relative humidity and dew point even at extremely low temperatures (below -238°F / −150 °C). (For temperature inputs below −22°F(−30 °C), please use the companion app “Calculator of Air”.) Please note: This version is not compatible with older versions of the companion app “Calculator of Air” (version 1.1.4 or earlier). Users who rely on app integration are kindly requested to update “Calculator of Air” to version 1.1.5 or later.
1.2.0
- Updated some screenshots for the Taiwan market. - Updated to comply with the privacy requirements introduced in iOS 14 (IDFA and App Tracking Transparency). - Optimized the UI for 6.5-inch displays on iPhone X and later models. - Updated the AdMob advertising SDK. - Added calculation and display support for frost point temperature. - VPD (Vapor Pressure Deficit) is now displayed alongside humidity deficit values. - Improved the numerical analysis algorithms, resulting in faster calculations and accurate computation of relative humidity and dew point even at extremely low temperatures (below -238°F / −150 °C). (For temperature inputs below −22°F(−30 °C), please use the companion app “Calculator of Air”.) Please note: This version is not compatible with older versions of the companion app “Calculator of Air” (version 1.1.4 or earlier). Users who rely on app integration are kindly requested to update “Calculator of Air” to version 1.1.5 or later.
1.2.1
- Fixed a bug in part of the calculation program for dew point and frost point temperatures in the extremely low-temperature range (below -238 °F). - Updated to comply with the privacy requirements introduced in iOS 14 (IDFA and App Tracking Transparency). - Optimized the UI for 6.5-inch displays on iPhone X and later models. - Updated the AdMob advertising SDK. - Added calculation and display support for frost point temperature. - VPD (Vapor Pressure Deficit) is now displayed alongside humidity deficit values. - Improved the numerical analysis algorithms, resulting in faster calculations and accurate computation of relative humidity and dew point even at extremely low temperatures (below -238°F / −150 °C). (For temperature inputs below −22°F(−30 °C), please use the companion app “Calculator of Air”.) Please note: This version is not compatible with older versions of the companion app “Calculator of Air” (version 1.1.4 or earlier). Users who rely on app integration are kindly requested to update “Calculator of Air” to version 1.1.5 or later.
1.2.2
- Fixed minor bugs. - Updated to comply with the privacy requirements introduced in iOS 14 (IDFA and App Tracking Transparency). - Optimized the UI for 6.5-inch displays on iPhone X and later models. - Updated the AdMob advertising SDK. - Added calculation and display support for frost point temperature. - VPD (Vapor Pressure Deficit) is now displayed alongside humidity deficit values. - Improved the numerical analysis algorithms, resulting in faster calculations and accurate computation of relative humidity and dew point even at extremely low temperatures (below -238°F / −150 °C). (For temperature inputs below −22°F(−30 °C), please use the companion app “Calculator of Air”.) Please note: This version is not compatible with older versions of the companion app “Calculator of Air” (version 1.1.4 or earlier). Users who rely on app integration are kindly requested to update “Calculator of Air” to version 1.1.5 or later.
1.2.3
- Fixed a bug in the ad display logic. - Updated to comply with the privacy requirements introduced in iOS 14 (IDFA and App Tracking Transparency). - Optimized the UI for 6.5-inch displays on iPhone X and later models. - Updated the AdMob advertising SDK. - Added calculation and display support for frost point temperature. - VPD (Vapor Pressure Deficit) is now displayed alongside humidity deficit values. - Improved the numerical analysis algorithms, resulting in faster calculations and accurate computation of relative humidity and dew point even at extremely low temperatures (below -238°F / −150 °C). (For temperature inputs below −22°F(−30 °C), please use the companion app “Calculator of Air”.) Please note: This version is not compatible with older versions of the companion app “Calculator of Air” (version 1.1.4 or earlier). Users who rely on app integration are kindly requested to update “Calculator of Air” to version 1.1.5 or later.
1.2.4
- Fixed a layout issue that occurred on some devices. - Updated to comply with the privacy requirements introduced in iOS 14 (IDFA and App Tracking Transparency). - Optimized the UI for 6.5-inch displays on iPhone X and later models. - Updated the AdMob advertising SDK. - Added calculation and display support for frost point temperature. - VPD (Vapor Pressure Deficit) is now displayed alongside humidity deficit values. - Improved the numerical analysis algorithms, resulting in faster calculations and accurate computation of relative humidity and dew point even at extremely low temperatures (below -238°F / −150 °C). (For temperature inputs below −22°F(−30 °C), please use the companion app “Calculator of Air”.) Please note: This version is not compatible with older versions of the companion app “Calculator of Air” (version 1.1.4 or earlier). Users who rely on app integration are kindly requested to update “Calculator of Air” to version 1.1.5 or later.
1.2.5
- Fixed a layout issue that occurred on some devices. - Updated to comply with the privacy requirements introduced in iOS 14 (IDFA and App Tracking Transparency). - Optimized the UI for 6.5-inch displays on iPhone X and later models. - Updated the AdMob advertising SDK. - Added calculation and display support for frost point temperature. - VPD (Vapor Pressure Deficit) is now displayed alongside humidity deficit values. - Improved the numerical analysis algorithms, resulting in faster calculations and accurate computation of relative humidity and dew point even at extremely low temperatures (below -238°F / −150 °C). (For temperature inputs below −22°F(−30 °C), please use the companion app “Calculator of Air”.) Please note: This version is not compatible with older versions of the companion app “Calculator of Air” (version 1.1.4 or earlier). Users who rely on app integration are kindly requested to update “Calculator of Air” to version 1.1.5 or later.
1.2.6
- Fixed a layout issue that occurred on some devices. - Updated to comply with the privacy requirements introduced in iOS 14 (IDFA and App Tracking Transparency). - Optimized the UI for 6.5-inch displays on iPhone X and later models. - Updated the AdMob advertising SDK. - Added calculation and display support for frost point temperature. - VPD (Vapor Pressure Deficit) is now displayed alongside humidity deficit values. - Improved the numerical analysis algorithms, resulting in faster calculations and accurate computation of relative humidity and dew point even at extremely low temperatures (below -238°F / −150 °C). (For temperature inputs below −22°F(−30 °C), please use the companion app “Calculator of Air”.) Please note: This version is not compatible with older versions of the companion app “Calculator of Air” (version 1.1.4 or earlier). Users who rely on app integration are kindly requested to update “Calculator of Air” to version 1.1.5 or later.
1.2.7 · 19 Apr 2026
- Changed the ad banner from a Smart Banner to an Adaptive Banner. - Fixed a layout issue that occurred on some devices. - Updated to comply with the privacy requirements introduced in iOS 14 (IDFA and App Tracking Transparency). - Optimized the UI for 6.5-inch displays on iPhone X and later models. - Updated the AdMob advertising SDK. - Added calculation and display support for frost point temperature. - VPD (Vapor Pressure Deficit) is now displayed alongside humidity deficit values. - Improved the numerical analysis algorithms, resulting in faster calculations and accurate computation of relative humidity and dew point even at extremely low temperatures (below -238°F / −150 °C). (For temperature inputs below −22°F(−30 °C), please use the companion app “Calculator of Air”.) Please note: This version is not compatible with older versions of the companion app “Calculator of Air” (version 1.1.4 or earlier). Users who rely on app integration are kindly requested to update “Calculator of Air” to version 1.1.5 or later.

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Alternatives

Meteo Calc: Weather Forecast — Same category + similar ratings

Availability by market

No LIVE observation for DE yet.

Data quality & evidence

Page completeness: Live store listing
Last verified: 31 Jul 2026
Sources: App Store

Independent summary has not been published yet.

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Compare HumidCalc with Meteo Calc: Weather Forecast.

View JSON

GET /api/v3/apps/1135328698

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          "rating": 5,
          "title": "Good features, needs more info",
          "body": "First I wish there was a paid option to not have ads. More importantly, I like the specific features but need more background on how some things are calculated. WBGT is 'estimated' but how? That is far from easy to do right. And what is the discomfort index reported? And there is no way to ask . Developer, please consider an update with info, And perhaps an ad free upgrade, and a way to ask such questions. Update (4/5/17): developer responded via App Store, thanks! But still have questions: how is WBGT estimated, and what discomfort index is used? Thank you. Update: 4/15/17. Thank you to the developer for the details on the wbgt estimation. The globe temperature is the hardest to accurately estimate, but thank you for listing your equation. Also thanks for listing the discomfort index equation in your app. I appreciate your support and use your app. Excellent post script- I give 5 stars now.",
          "author": "Tx9753",
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      "version": "1.0.3",
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      "notes": "- When you measure the atmospheric pressure in the iPhone6 and iPhone6Plus, it was to display the indicator circle until the measurement results. - Other, fixes minor bugs."
    },
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    },
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      "notes": "- Fixed the problem that the screen collapsed on some models."
    },
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      "version": "1.0.6",
      "released_at": null,
      "notes": "- Minor bug fixes. - Other Addition of discomfort index and WBGT glossary to \"Description\"."
    },
    {
      "store": "apple",
      "version": "1.0.7",
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      "notes": "- The dry-bulb and wet-bulb temperatures picker view bug fixes were made. - Other Addition of discomfort index and WBGT glossary to \"Description\"."
    },
    {
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      "version": "1.0.8",
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      "notes": "- Fixed of the bugs to abnormal screen occurring when it is receive Fahrenheit temperature data from the \"Calculator of Air\" ."
    },
    {
      "store": "apple",
      "version": "1.0.9",
      "released_at": null,
      "notes": "- Minor Bug Fix. Fixed when this App of use in iOS10 devices a problems occurrring that some of the text display strange by the when used for Japanese language environment or Traditional Chinese language environment."
    },
    {
      "store": "apple",
      "version": "1.1.0",
      "released_at": null,
      "notes": "- Fixed bugs the application name does not display properly in English environment. - Inserted an advertisement of the sister application \"Calculator of Air\" in the application."
    },
    {
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      "version": "1.1.1",
      "released_at": null,
      "notes": "- Was changed the icon design."
    },
    {
      "store": "apple",
      "version": "1.1.2",
      "released_at": null,
      "notes": "- Fixed minor bugs."
    },
    {
      "store": "apple",
      "version": "1.1.3",
      "released_at": null,
      "notes": "- Fix bug in when trying to acquire weather information when radio condition is bad, the application crashes."
    },
    {
      "store": "apple",
      "version": "1.1.4",
      "released_at": null,
      "notes": "- Bug fixes. There was a bug where the application malfunction when acquisition of location information failed, so we corrected it."
    },
    {
      "store": "apple",
      "version": "1.1.5",
      "released_at": null,
      "notes": "- Bug fixes. There was a bug where the application malfunction when acquisition of location information failed, so we corrected it. (We also fixed the same problem when updating to Ver1.1.4, but since I could not completely solve the problem, we are fixing the same problem again.)"
    },
    {
      "store": "apple",
      "version": "1.1.6",
      "released_at": null,
      "notes": "- Support for since iOS8.0. - Fixed some bugs."
    },
    {
      "store": "apple",
      "version": "1.1.7",
      "released_at": null,
      "notes": "- Partially corrected the description text in Japanese environment App Store. - Changed partially text in first 5.5 inch screenshot."
    },
    {
      "store": "apple",
      "version": "1.1.8",
      "released_at": null,
      "notes": "- Added support for iOS 15.6 and later. - Updated to comply with the privacy requirements introduced in iOS 14 (IDFA and App Tracking Transparency). - Optimized the UI for 6.5-inch displays on iPhone X and later models. - Updated the AdMob advertising SDK. - Added calculation and display support for frost point temperature. - VPD (Vapor Pressure Deficit) is now displayed alongside humidity deficit values. - Improved the numerical analysis algorithms, resulting in faster calculations and accurate computation of relative humidity and dew point even at extremely low temperatures (below -238°F / −150 °C). (For temperature inputs below −22°F(−30 °C), please use the companion app “Calculator of Air”.) Please note: This version is not compatible with older versions of the companion app “Calculator of Air” (version 1.1.4 or earlier). Users who rely on app integration are kindly requested to update “Calculator of Air” to version 1.1.5 or later."
    },
    {
      "store": "apple",
      "version": "1.1.9",
      "released_at": null,
      "notes": "- Fixed minor text issues in the app. - Updated to comply with the privacy requirements introduced in iOS 14 (IDFA and App Tracking Transparency). - Optimized the UI for 6.5-inch displays on iPhone X and later models. - Updated the AdMob advertising SDK. - Added calculation and display support for frost point temperature. - VPD (Vapor Pressure Deficit) is now displayed alongside humidity deficit values. - Improved the numerical analysis algorithms, resulting in faster calculations and accurate computation of relative humidity and dew point even at extremely low temperatures (below -238°F / −150 °C). (For temperature inputs below −22°F(−30 °C), please use the companion app “Calculator of Air”.) Please note: This version is not compatible with older versions of the companion app “Calculator of Air” (version 1.1.4 or earlier). Users who rely on app integration are kindly requested to update “Calculator of Air” to version 1.1.5 or later."
    },
    {
      "store": "apple",
      "version": "1.2.0",
      "released_at": null,
      "notes": "- Updated some screenshots for the Taiwan market. - Updated to comply with the privacy requirements introduced in iOS 14 (IDFA and App Tracking Transparency). - Optimized the UI for 6.5-inch displays on iPhone X and later models. - Updated the AdMob advertising SDK. - Added calculation and display support for frost point temperature. - VPD (Vapor Pressure Deficit) is now displayed alongside humidity deficit values. - Improved the numerical analysis algorithms, resulting in faster calculations and accurate computation of relative humidity and dew point even at extremely low temperatures (below -238°F / −150 °C). (For temperature inputs below −22°F(−30 °C), please use the companion app “Calculator of Air”.) Please note: This version is not compatible with older versions of the companion app “Calculator of Air” (version 1.1.4 or earlier). Users who rely on app integration are kindly requested to update “Calculator of Air” to version 1.1.5 or later."
    },
    {
      "store": "apple",
      "version": "1.2.1",
      "released_at": null,
      "notes": "- Fixed a bug in part of the calculation program for dew point and frost point temperatures in the extremely low-temperature range (below -238 °F). - Updated to comply with the privacy requirements introduced in iOS 14 (IDFA and App Tracking Transparency). - Optimized the UI for 6.5-inch displays on iPhone X and later models. - Updated the AdMob advertising SDK. - Added calculation and display support for frost point temperature. - VPD (Vapor Pressure Deficit) is now displayed alongside humidity deficit values. - Improved the numerical analysis algorithms, resulting in faster calculations and accurate computation of relative humidity and dew point even at extremely low temperatures (below -238°F / −150 °C). (For temperature inputs below −22°F(−30 °C), please use the companion app “Calculator of Air”.) Please note: This version is not compatible with older versions of the companion app “Calculator of Air” (version 1.1.4 or earlier). Users who rely on app integration are kindly requested to update “Calculator of Air” to version 1.1.5 or later."
    },
    {
      "store": "apple",
      "version": "1.2.2",
      "released_at": null,
      "notes": "- Fixed minor bugs. - Updated to comply with the privacy requirements introduced in iOS 14 (IDFA and App Tracking Transparency). - Optimized the UI for 6.5-inch displays on iPhone X and later models. - Updated the AdMob advertising SDK. - Added calculation and display support for frost point temperature. - VPD (Vapor Pressure Deficit) is now displayed alongside humidity deficit values. - Improved the numerical analysis algorithms, resulting in faster calculations and accurate computation of relative humidity and dew point even at extremely low temperatures (below -238°F / −150 °C). (For temperature inputs below −22°F(−30 °C), please use the companion app “Calculator of Air”.) Please note: This version is not compatible with older versions of the companion app “Calculator of Air” (version 1.1.4 or earlier). Users who rely on app integration are kindly requested to update “Calculator of Air” to version 1.1.5 or later."
    }
  ],
  "alternatives": [
    {
      "app_id": 1374113357,
      "name": "Meteo Calc: Weather Forecast",
      "url": "https://appcorpus.com/apps/meteo-calc-weather-forecast-1374113357",
      "reason": "Same category + similar ratings"
    }
  ],
  "evidence_summary": {
    "index_state": "S1",
    "evidence_level": 1,
    "level_label": "Live store listing",
    "indexable": true,
    "last_verified_at": "2026-07-31",
    "unknown_fields": [
      "Independent summary has not been published yet."
    ],
    "sources": [
      "App Store"
    ]
  },
  "availability_markets": {
    "live": [
      "us"
    ],
    "selected": "de",
    "note": "No LIVE observation for DE yet."
  },
  "feature_events": {
    "events": []
  },
  "features_slice": {
    "plans": [
      {
        "code": "free",
        "label": "Free",
        "kind": "free",
        "status": "inferred",
        "prices": [],
        "trial": null
      }
    ],
    "features": [],
    "unknown_features": [],
    "data_cutoff": "31 Jul 2026"
  }
}