Cello Tuner

Name: Cello Tuner
Rating: 3.9 (250 reviews)
Author: Alvin Yu

by Alvin Yu

iPhone · iPad

Active Last checked 7 Aug 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

Utilities
Music

AppCorpus categories

Key functions

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

Screens

App Store

3 store screenshots

Pricing & paywalls

App Store

Free

Last verified 7 Aug 2026

Ratings & reviews

App Store

3.9 250 ratings · App Store

5/5Perfect Pitch
This works much better than previous sites I've tried using. It matches great and I use it all the time before I practice!

Lizzy Lou022 · 7 Aug 2026
1/5Horrible
It did absolutely nothing, I played and played, taped on my screen over and over again yet nothing happened at all

Cellomazing · 7 Aug 2026
5/5Good
Glad to have a way tune my cello Thanks

Dan labelle · 7 Aug 2026
5/5It’s a tuner for people who have an ear
It works great. Nice and fast - I use it every time I practice my cello. A big step up from a tuning fork. But it doesn’t tell you if your note is too high or too low- you have to be able to do that by hearing and comparing the sounds from your tuner and cello.

zoe leiter · 7 Aug 2026
1/5Just plays notes not a tuner
The expectation of a tuner is that it listens and tells you to go higher or lower. This just played notes and not well to tune by ear. I kinda want my $0.99 back

PwentSmash · 7 Aug 2026

Privacy & accessibility

App Store

Privacy

Data Linked to You — Analytics — Diagnostics — Crash Data Developer declared
Data Linked to You — Analytics — Diagnostics — Performance Data Developer declared
Data Linked to You — Analytics — Identifiers — Device ID Developer declared
Data Linked to You — Analytics — Usage Data — Advertising Data Developer declared
Data Linked to You — Analytics — Usage Data — Product Interaction Developer declared
Data Linked to You — App Functionality — Diagnostics — Crash Data Developer declared
Data Linked to You — Third-Party Advertising — Diagnostics — Crash Data Developer declared
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 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

Show more Show less

Accessibility

No accessibility labels collected yet.

Versions

App Store

1.0
1.1
Minor Bug Fixes
1.10.0
Updated for iOS 15
1.11.0
Updated for iOS 16
1.12.0
Updated for iOS 17
1.13.0
Updated for iOS 18
1.14.0 · 14 May 2026
Minor UI fixes and stability improvements.
1.2
Adjusted UI for iPhone 5 Screen
1.3
Update UI for iOS 7
1.4
Minor Bug Fix for iOS 5 and iOS 6
1.5
Minor Bug Fix
1.6
Updated UI
1.7
Minor bug fixes.
1.8
Update UI for iPhone X
1.9.0
Updated for iOS 13

Show more Show less

Alternatives

Ukulele Tuner - TrueStudio — Same category + similar ratings

Availability by market

Data quality & evidence

Page completeness: Live store listing
Last verified: 7 Aug 2026
Sources: App Store

Independent summary has not been published yet.

Report a correction

Use this page with an AI agent

AppCorpus MCP gives your agent current app data, prices, screens, features and sources.

Example prompt

Compare Cello Tuner with Ukulele Tuner - TrueStudio.

View JSON

GET /api/v3/apps/336370151

{
  "app_id": 336370151,
  "canonical_url": "https://appcorpus.com/apps/cello-tuner-336370151",
  "identity": {
    "name": "Cello Tuner",
    "slug": "cello-tuner",
    "developer": {
      "name": "Alvin Yu",
      "url": "https://appcorpus.com/developers/alvin-yu-developer_3c783c8b180298755fd747d795d32f93"
    },
    "icon_url": "https://is1-ssl.mzstatic.com/image/thumb/Purple211/v4/7e/2c/eb/7e2ceba3-fd5c-8a09-fb01-783373addaf1/CelloTunerAppIcon-0-0-1x_U007epad-0-1-sRGB-85-220.jpeg/512x512bb.jpg",
    "stores": [
      "apple"
    ],
    "platforms": [
      "iphone",
      "ipad"
    ],
    "status": {
      "state": "active",
      "label": "Active",
      "last_checked": "2026-08-07",
      "last_checked_label": "7 Aug 2026",
      "banner": null,
      "region_note": null
    }
  },
  "listings": [
    {
      "store": "apple",
      "status": "ACTIVE",
      "url": "https://apps.apple.com/us/app/cello-tuner/id336370151?uo=4",
      "rating": 3.9,
      "rating_count": 250,
      "formatted_price": "Free",
      "is_free": true,
      "has_iap": false,
      "has_subscription": false,
      "version": "1.14.0",
      "updated": "2026-05-14",
      "currency": "USD"
    }
  ],
  "summary": {
    "one_liner": null,
    "summary": null,
    "best_for": [],
    "not_for": [],
    "status": "fallback",
    "at_a_glance": [
      "Free to download"
    ]
  },
  "categories": {
    "official": [
      "Utilities",
      "Music"
    ],
    "appcorpus": [
      {
        "category_id": "utilities",
        "label": "Utilities",
        "url": "https://appcorpus.com/categories/utilities"
      },
      {
        "category_id": "music",
        "label": "Music",
        "url": "https://appcorpus.com/categories/music"
      }
    ]
  },
  "use_cases": [],
  "features": [
    {
      "capability_id": "free_app",
      "label": "Free app",
      "availability": "yes",
      "access_level": "free",
      "scope": null,
      "evidence": "Store published"
    }
  ],
  "pricing": [
    {
      "store": "apple",
      "formatted_price": "Free",
      "is_free": true,
      "has_iap": false,
      "has_subscription": false,
      "currency": "USD",
      "market": "us",
      "last_verified": "2026-08-07",
      "rows": [
        "Free"
      ]
    }
  ],
  "screens": [
    {
      "url": "https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/cd/9d/1c/cd9d1cc0-59f7-3f04-1c73-cdab8e26ca20/iPad_-_3.png/1600x1600bb.jpg",
      "store": "apple",
      "platform": "ipad",
      "alt": "Cello Tuner ipad screenshot 1"
    },
    {
      "url": "https://is1-ssl.mzstatic.com/image/thumb/Purple221/v4/ae/e1/d9/aee1d9b3-bc5a-7e62-729a-bc5cb8dbb0c5/pr_source.jpg/576x768bb.jpg",
      "store": "apple",
      "platform": "ipad",
      "alt": "Cello Tuner ipad screenshot 2"
    },
    {
      "url": "https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/15/db/ef/15dbefa9-170c-fd82-2259-9b2c59bd4eba/iPhone_6.5_-_3.png/1242x1600bb.jpg",
      "store": "apple",
      "platform": "iphone",
      "alt": "Cello Tuner iphone screenshot 3"
    }
  ],
  "ratings": [
    {
      "store": "apple",
      "average": 3.9,
      "count": 250,
      "market": "us",
      "observed_at": "2026-08-07",
      "reviews": [
        {
          "rating": 5,
          "title": "Perfect Pitch",
          "body": "This works much better than previous sites I've tried using. It matches great and I use it all the time before I practice!",
          "author": "Lizzy Lou022",
          "date": "7 Aug 2026"
        },
        {
          "rating": 1,
          "title": "Horrible",
          "body": "It did absolutely nothing, I played and played, taped on my screen over and over again yet nothing happened at all",
          "author": "Cellomazing",
          "date": "7 Aug 2026"
        },
        {
          "rating": 5,
          "title": "Good",
          "body": "Glad to have a way tune my cello Thanks",
          "author": "Dan labelle",
          "date": "7 Aug 2026"
        },
        {
          "rating": 5,
          "title": "It’s a tuner for people who have an ear",
          "body": "It works great. Nice and fast - I use it every time I practice my cello. A big step up from a tuning fork. But it doesn’t tell you if your note is too high or too low- you have to be able to do that by hearing and comparing the sounds from your tuner and cello.",
          "author": "zoe leiter",
          "date": "7 Aug 2026"
        },
        {
          "rating": 1,
          "title": "Just plays notes not a tuner",
          "body": "The expectation of a tuner is that it listens and tells you to go higher or lower. This just played notes and not well to tune by ear. I kinda want my $0.99 back",
          "author": "PwentSmash",
          "date": "7 Aug 2026"
        }
      ]
    }
  ],
  "privacy": [
    {
      "store": "apple",
      "declarations": [
        {
          "title": "Data Linked to You",
          "detail": "Analytics — Diagnostics — Crash Data",
          "source": "Developer declared"
        },
        {
          "title": "Data Linked to You",
          "detail": "Analytics — Diagnostics — Performance Data",
          "source": "Developer declared"
        },
        {
          "title": "Data Linked to You",
          "detail": "Analytics — Identifiers — Device ID",
          "source": "Developer declared"
        },
        {
          "title": "Data Linked to You",
          "detail": "Analytics — Usage Data — Advertising Data",
          "source": "Developer declared"
        },
        {
          "title": "Data Linked to You",
          "detail": "Analytics — Usage Data — Product Interaction",
          "source": "Developer declared"
        },
        {
          "title": "Data Linked to You",
          "detail": "App Functionality — Diagnostics — Crash Data",
          "source": "Developer declared"
        },
        {
          "title": "Data Linked to You",
          "detail": "Third-Party Advertising — Diagnostics — Crash Data",
          "source": "Developer declared"
        },
        {
          "title": "Data Linked to You",
          "detail": "Third-Party Advertising — Diagnostics — Performance Data",
          "source": "Developer declared"
        },
        {
          "title": "Data Linked to You",
          "detail": "Third-Party Advertising — Identifiers — Device ID",
          "source": "Developer declared"
        },
        {
          "title": "Data Linked to You",
          "detail": "Third-Party Advertising — Location — Coarse Location",
          "source": "Developer declared"
        },
        {
          "title": "Data Linked to You",
          "detail": "Third-Party Advertising — Usage Data — Advertising Data",
          "source": "Developer declared"
        },
        {
          "title": "Data Linked to You",
          "detail": "Third-Party Advertising — Usage Data — Product Interaction",
          "source": "Developer declared"
        },
        {
          "title": "Data Linked to You",
          "detail": "Diagnostics",
          "source": "Developer declared"
        },
        {
          "title": "Data Linked to You",
          "detail": "Identifiers",
          "source": "Developer declared"
        },
        {
          "title": "Data Linked to You",
          "detail": "Location",
          "source": "Developer declared"
        },
        {
          "title": "Data Linked to You",
          "detail": "Usage Data",
          "source": "Developer declared"
        },
        {
          "title": "Data Used to Track You",
          "detail": "Diagnostics — Crash Data",
          "source": "Developer declared"
        },
        {
          "title": "Data Used to Track You",
          "detail": "Diagnostics — Performance Data",
          "source": "Developer declared"
        },
        {
          "title": "Data Used to Track You",
          "detail": "Diagnostics",
          "source": "Developer declared"
        },
        {
          "title": "Data Used to Track You",
          "detail": "Identifiers — Device ID",
          "source": "Developer declared"
        },
        {
          "title": "Data Used to Track You",
          "detail": "Identifiers",
          "source": "Developer declared"
        },
        {
          "title": "Data Used to Track You",
          "detail": "Location — Coarse Location",
          "source": "Developer declared"
        },
        {
          "title": "Data Used to Track You",
          "detail": "Location",
          "source": "Developer declared"
        },
        {
          "title": "Data Used to Track You",
          "detail": "Usage Data — Advertising Data",
          "source": "Developer declared"
        },
        {
          "title": "Data Used to Track You",
          "detail": "Usage Data — Product Interaction",
          "source": "Developer declared"
        },
        {
          "title": "Data Used to Track You",
          "detail": "Usage Data",
          "source": "Developer declared"
        }
      ],
      "accessibility": []
    }
  ],
  "changes": [
    {
      "store": "apple",
      "version": "1.0",
      "released_at": null,
      "notes": ""
    },
    {
      "store": "apple",
      "version": "1.1",
      "released_at": null,
      "notes": "Minor Bug Fixes"
    },
    {
      "store": "apple",
      "version": "1.10.0",
      "released_at": null,
      "notes": "Updated for iOS 15"
    },
    {
      "store": "apple",
      "version": "1.11.0",
      "released_at": null,
      "notes": "Updated for iOS 16"
    },
    {
      "store": "apple",
      "version": "1.12.0",
      "released_at": null,
      "notes": "Updated for iOS 17"
    },
    {
      "store": "apple",
      "version": "1.13.0",
      "released_at": null,
      "notes": "Updated for iOS 18"
    },
    {
      "store": "apple",
      "version": "1.14.0",
      "released_at": "2026-05-14",
      "notes": "Minor UI fixes and stability improvements."
    },
    {
      "store": "apple",
      "version": "1.2",
      "released_at": null,
      "notes": "Adjusted UI for iPhone 5 Screen"
    },
    {
      "store": "apple",
      "version": "1.3",
      "released_at": null,
      "notes": "Update UI for iOS 7"
    },
    {
      "store": "apple",
      "version": "1.4",
      "released_at": null,
      "notes": "Minor Bug Fix for iOS 5 and iOS 6"
    },
    {
      "store": "apple",
      "version": "1.5",
      "released_at": null,
      "notes": "Minor Bug Fix"
    },
    {
      "store": "apple",
      "version": "1.6",
      "released_at": null,
      "notes": "Updated UI"
    },
    {
      "store": "apple",
      "version": "1.7",
      "released_at": null,
      "notes": "Minor bug fixes."
    },
    {
      "store": "apple",
      "version": "1.8",
      "released_at": null,
      "notes": "Update UI for iPhone X"
    },
    {
      "store": "apple",
      "version": "1.9.0",
      "released_at": null,
      "notes": "Updated for iOS 13"
    }
  ],
  "alternatives": [
    {
      "app_id": 1525664370,
      "name": "Ukulele Tuner - TrueStudio",
      "url": "https://appcorpus.com/apps/ukulele-tuner-truestudio-1525664370",
      "reason": "Same category + similar ratings"
    }
  ],
  "evidence_summary": {
    "index_state": "S1",
    "evidence_level": 1,
    "level_label": "Live store listing",
    "indexable": true,
    "last_verified_at": "2026-08-07",
    "unknown_fields": [
      "Independent summary has not been published yet."
    ],
    "sources": [
      "App Store"
    ]
  },
  "availability_markets": {
    "live": [
      "us"
    ],
    "selected": "us",
    "note": null
  },
  "feature_events": {
    "events": []
  },
  "features_slice": {
    "plans": [
      {
        "code": "free",
        "label": "Free",
        "kind": "free",
        "status": "inferred",
        "prices": [],
        "trial": null
      }
    ],
    "features": [],
    "unknown_features": [],
    "data_cutoff": "7 Aug 2026"
  }
}