# Keen Calculator & Converter — Mortgage, tip, BMI, percent

> Mortgage, tip, BMI, percent (iPhone/iPad app by AREALME LIMITED.)

- Source: https://appshunter.io/ios/app/keen-calculator-and-converter/id6821608032 (this page in markdown: same URL + `.md`)
- Developer: [AREALME LIMITED](https://appshunter.io/developer/1827734321)
- Category: Utilities, Finance
- Price: Free
- Age rating: 4+
- Requires: iOS 17.0 · 10 MB
- Languages: American English, Dutch, French (France), German (Germany), Indonesian, Italian, Japanese, Korean, Polish, Brazilian Portuguese and 6 more
- Released: 2026-10-12
- Data updated: 2026-10-24

## What is Keen Calculator & Converter?

Keen Calculator is an everyday calculator and a library of more than 400 calculators and converters in one app. It is free, has no ads, needs no account and collects nothing.

EVERYDAY CALCULATOR
• A clear keypad with a tape that keeps your working in view

400+ CALCULATORS IN 14 CATEGORIES
• Pay: overtime, raises, hourly to salary, time cards
• Finance: mortgage, loans, compound interest, savings, retirement
• Business: margin, markup, discount, sales tax, VAT, break-even
• Math, geometry and statistics: percentages, fractions, area, volume, standard deviation
• Health and fitness: BMI, calories, running pace
• Date and time: age, days between dates, business days
• Home, auto, school, tech and everyday: concrete, paint, fuel cost, GPA, tip and bill split

ANSWERS AS YOU TYPE
• Results update while you type, no Calculate button
• Presets, breakdown bars and payment schedules
• Worked examples and a plain explanation for every calculator

UNIT CONVERTER
• Length, weight, temperature, volume, area, speed, data and more

IT REMEMBERS
• Pin the calculators you use most
• Save named setups and load them in one tap
• A history of your results

PRIVATE BY DESIGN
• No ads, no account, no tracking
• Every calculation runs on your iPhone; pins, setups and history stay on the device
• 16 languages

GOOD TO KNOW
Health and finance calculators give estimates for general information. They are not medical, tax or financial advice.

Keen Calculator is the companion app to keencalculator.com.

## Is Keen Calculator & Converter safe?

Not enough ratings yet to assess Keen Calculator & Converter.

## Is Keen Calculator & Converter legit?

Keen Calculator & Converter appears legitimate, with a few gaps. The AppsHunter Legitimacy Score for Keen Calculator & Converter is 65 out of 100 points across 7 verification signals from App Store and developer data.


## Version history (last 3 releases)

### 1.2.0 — 2026-10-21

New in 1.2:
• Step by step: 40 calculators now show their working — the formula, your numbers plugged in and the answer, with units carried through every line
• Diagrams: area, volume, triangle, circle, slope, percentage and roof pitch calculators draw the shape to your proportions. The measurement you are editing lights up, and tapping or clicking a label takes you to its field
• Keep exploring: every calculator ends with calculators that go well with it and the closest ones in its category
• Numbers in the steps are written the way your language writes them

### 1.1.0 — 2026-10-18

New in 1.1:
• 30+ new calculators, including a scientific calculator with its own key row, statistics, salary, loan payment, matrix, binary, velocity, half-life and a dice roller
• US money tools: take-home pay, Roth IRA and IRA, student loan, HELOC, mileage reimbursement
• Text fields now show the right keyboard for what you type
• Faster search across 430+ calculators

### 1.0.0 — 2026-10-12

No release notes.

## More apps by AREALME LIMITED

- [CPSTest.app](https://appshunter.io/ios/app/cpstestapp/id6748864654)
- [whitescreen.tv](https://appshunter.io/ios/app/whitescreentv/id6752258506)
- [Core Ball - Pin Game](https://appshunter.io/ios/app/core-ball-pin-game/id6791501452)

All apps by AREALME LIMITED: https://appshunter.io/developer/1827734321

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-10-24.*