AppCorpus MCP gives your agent current app data, prices, screens, features and sources.
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GET /api/v3/apps/1025852681
{
"app_id": 1025852681,
"canonical_url": "https://appcorpus.com/apps/karl-s-mortgage-calculator-1025852681",
"identity": {
"name": "Karl's Mortgage Calculator",
"slug": "karl-s-mortgage-calculator",
"developer": {
"name": "Karl Jeacle",
"url": "https://appcorpus.com/developers/karl-jeacle-developer_b65eb96d24ee901223439f31c68f7512"
},
"icon_url": "https://is1-ssl.mzstatic.com/image/thumb/Purple221/v4/6c/be/90/6cbe90a7-7f61-3b0b-d41f-b3aa7b7cfcbd/AppIcon-0-0-1x_U007epad-0-1-85-220.png/512x512bb.jpg",
"stores": [
"apple"
],
"platforms": [
"iphone",
"ipad"
],
"status": {
"state": "active",
"label": "Active",
"last_checked": "2026-08-06",
"last_checked_label": "6 Aug 2026",
"banner": null,
"region_note": null
}
},
"listings": [
{
"store": "apple",
"status": "ACTIVE",
"url": "https://apps.apple.com/us/app/karls-mortgage-calculator/id1025852681?uo=4",
"rating": 4.4,
"rating_count": 122,
"formatted_price": "Free",
"is_free": true,
"has_iap": false,
"has_subscription": false,
"version": "2.7.1",
"updated": "2026-07-22",
"currency": "USD"
}
],
"summary": {
"one_liner": null,
"summary": null,
"best_for": [],
"not_for": [],
"status": "fallback",
"at_a_glance": [
"Free to download"
]
},
"categories": {
"official": [
"Finance",
"Business"
],
"appcorpus": [
{
"category_id": "finance",
"label": "Finance",
"url": "https://appcorpus.com/categories/finance"
},
{
"category_id": "business",
"label": "Business",
"url": "https://appcorpus.com/categories/business"
}
]
},
"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": "2026-08-06",
"rows": [
"Free"
]
}
],
"screens": [
{
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"store": "apple",
"platform": "ipad",
"alt": "Karl's Mortgage Calculator ipad screenshot 1"
},
{
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"store": "apple",
"platform": "ipad",
"alt": "Karl's Mortgage Calculator ipad screenshot 2"
},
{
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"store": "apple",
"platform": "ipad",
"alt": "Karl's Mortgage Calculator ipad screenshot 3"
},
{
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"store": "apple",
"platform": "ipad",
"alt": "Karl's Mortgage Calculator ipad screenshot 4"
},
{
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"store": "apple",
"platform": "ipad",
"alt": "Karl's Mortgage Calculator ipad screenshot 5"
},
{
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"store": "apple",
"platform": "ipad",
"alt": "Karl's Mortgage Calculator ipad screenshot 6"
},
{
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"store": "apple",
"platform": "ipad",
"alt": "Karl's Mortgage Calculator ipad screenshot 7"
},
{
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"store": "apple",
"platform": "ipad",
"alt": "Karl's Mortgage Calculator ipad screenshot 8"
},
{
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"store": "apple",
"platform": "ipad",
"alt": "Karl's Mortgage Calculator ipad screenshot 9"
},
{
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"store": "apple",
"platform": "ipad",
"alt": "Karl's Mortgage Calculator ipad screenshot 10"
},
{
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"store": "apple",
"platform": "iphone",
"alt": "Karl's Mortgage Calculator iphone screenshot 11"
},
{
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"store": "apple",
"platform": "iphone",
"alt": "Karl's Mortgage Calculator iphone screenshot 12"
},
{
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"store": "apple",
"platform": "iphone",
"alt": "Karl's Mortgage Calculator iphone screenshot 13"
},
{
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"store": "apple",
"platform": "iphone",
"alt": "Karl's Mortgage Calculator iphone screenshot 14"
},
{
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"store": "apple",
"platform": "iphone",
"alt": "Karl's Mortgage Calculator iphone screenshot 15"
}
],
"ratings": [
{
"store": "apple",
"average": 4.4,
"count": 122,
"market": "us",
"observed_at": "2026-08-06",
"reviews": [
{
"rating": 5,
"title": "This is superior!",
"body": "I wanted to determine what the short, mid and long term financial benefits would be in refinancing our current mortgage now that interest rates have dropped. I wanted detailed comparisons, and some key questions answered, not just a semi-useless summary. I tried several online calculators... very awkward to get the level of detail needed. Irritating ads. Needed pencil and paper - to answer some key questions - awkward. I could have done it manually on my business calculator sitting idle in the kitchen draw.... big pain in the neck to get the level of detail needed in usable form. Karl’s calculator was fantastically easy to use, user friendly, fast, and lays out all the amortization details on an easy to play with slider tool. The amortization tables, with loan balances, interest paid, etc. etc., charts, graphs, summary, and more are all there and intuitive to use. So, I entered the variables for my current mortgage and wallowed within the results. Did the same for other scenarios. I emailed the detailed reports to myself, compared the .csv spreadsheets (all on my IPad). Don’t bother to look elsewhere for a mortgage calculator. Even if your needs are totally basic, you can’t beat this one.",
"author": "Gt12fyi3",
"date": "6 Aug 2026"
},
{
"rating": 5,
"title": "The best mortgage calculator ever!!!",
"body": "I own a handful of properties and I’m always looking for ways to tweak my payments as rent goes up or as I come in to more income so that I can shorten my payoff dates. There are plenty of mortgage calculator apps or online calculators out there, but I always find some thing that they’re lacking or that’s annoying about their use. But Karl’s calculator is just about perfect. I love that I can easily create new scenarios and that they automatically save and that I can email them when I’m done and the recipient of the email does not need the app in order to see the summary. Simply click on the attachment and they have a tidy summary of the scenario that I’ve run. Like I said, perfect!",
"author": "props4chicky",
"date": "6 Aug 2026"
},
{
"rating": 5,
"title": "AMAZING APP!",
"body": "I absolutely LOVE this app! I’ve used it for two house mortgages running “what-if” scenarios trying to target reasonable early payoff dates and understanding how much money I save in interest I don’t have to pay the bank. The app is easy to use and easy to pivot your payoff strategy when financial changes happen and you have to put less or can put more into the house. Seeing the payoff graphs, tables, and summary views are so nice. I use all the features on this app. The app is simple but powerful. Very user friendly but not underpowered. Great job! This is probably the first review I’ve ever posted about a mobile app because I just loved it so much.",
"author": "InterGalacticYouAndMe",
"date": "6 Aug 2026"
},
{
"rating": 5,
"title": "This app is the truth!",
"body": "I am buying my first home and wanted to be able to play with some scenarios after speaking with my lender. I was able to arrive at the same numbers we’d discussed and then play with them by adjusting different amounts. You can include PMI, based on your credit, and other relevant factors - or not. I feel some empowered! I can’t wait until my next conversation with the lender. She won’t know what hit her! Thank you so much for this invaluable tool.",
"author": "niccilynnwilliams",
"date": "6 Aug 2026"
},
{
"rating": 5,
"title": "Love it",
"body": "My husband and I owner finance land. Our customers are always wanting to know notes, down pmt. and how the interest thing will work.... so we calculate it and snap them a picture of it and it answers all their questions. So east to use. Looked at several other and they didn’t always work correct and eventually want to charge you huge fee to do the same thing this app does for free. Thank you Karl... wherever you are.",
"author": "Sandy1486",
"date": "6 Aug 2026"
}
]
}
],
"privacy": [
{
"store": "apple",
"declarations": [
{
"title": "Data Linked to You",
"detail": "Third-Party Advertising — Identifiers — Device ID",
"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": "Identifiers",
"source": "Developer declared"
},
{
"title": "Data Linked to You",
"detail": "Usage Data",
"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": "Usage Data — Advertising Data",
"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": "2.0",
"released_at": null,
"notes": "Better handling of saved data between sessions Load and save multiple loans Bug fixes"
},
{
"store": "apple",
"version": "2.1",
"released_at": null,
"notes": "Email report Balloon loans Bug fixes"
},
{
"store": "apple",
"version": "2.2",
"released_at": null,
"notes": "This update from Apple will improve the functionality of this app. No new features are included. 2.2 - USDA loans - new FICO ranges and MGIC rates - updated CMHC rates - show total/LTV in tables - highlight current date in tables - more currencies added - iPhone X support - bug fixes"
},
{
"store": "apple",
"version": "2.5.2",
"released_at": null,
"notes": "2.5.2 - 50 extra payments (was 30) - 50 interest rates (was 9) - Fixed payments (negative amortization) - Preserve term reduction on rate change setting - Stacked amortization graph setting - Zero interest rate is now valid - Email subject is loan name - Email breaks out monthly expenses - 100B principal, 10B repay - Remove ads menu option - Fix only five interest rates saved - Updated insurance rates - Remove analytics tracking"
},
{
"store": "apple",
"version": "2.7",
"released_at": null,
"notes": "2.7 - Darker color scheme - EU user consent for GDPR - Indian currency - Bug fixes"
},
{
"store": "apple",
"version": "2.7.1",
"released_at": "2026-07-22",
"notes": "2.7.1 - Better screen zoom handling"
}
],
"alternatives": [
{
"app_id": 1478735062,
"name": "Mortgage Pal - Loan Calculator",
"url": "https://appcorpus.com/apps/mortgage-pal-loan-calculator-1478735062",
"reason": "Same category + similar ratings"
},
{
"app_id": 1155749575,
"name": "Mortgage Calculator- Home Loan",
"url": "https://appcorpus.com/apps/mortgage-calculator-home-loan-1155749575",
"reason": "Same category + similar ratings"
},
{
"app_id": 1059124601,
"name": "Loan Calculator - Debt Planner",
"url": "https://appcorpus.com/apps/loan-calculator-debt-planner-1059124601",
"reason": "Same category + similar ratings"
},
{
"app_id": 1442980816,
"name": "Loan Calculator - Loan2Me",
"url": "https://appcorpus.com/apps/loan-calculator-loan2me-1442980816",
"reason": "Same category + similar ratings"
},
{
"app_id": 6450866112,
"name": "Mortgage Calculator 2.0",
"url": "https://appcorpus.com/apps/mortgage-calculator-2-0-6450866112",
"reason": "Same category + similar ratings"
},
{
"app_id": 1509212588,
"name": "Compound Interest Calc",
"url": "https://appcorpus.com/apps/compound-interest-calc-1509212588",
"reason": "Same category + similar ratings"
}
],
"evidence_summary": {
"index_state": "S1",
"evidence_level": 1,
"level_label": "Live store listing",
"indexable": true,
"last_verified_at": "2026-08-06",
"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": "6 Aug 2026"
}
}
