# Calc

> Simple tape calculator with scientific functions and conversions for iOS. (iPhone/iPad app by Mike Wesemann.)

- Source: https://appshunter.io/ios/app/calc/id285807159 (this page in markdown: same URL + `.md`)
- Developer: [Mike Wesemann](https://appshunter.io/developer/285807162)
- Category: Utilities, Productivity
- Price: Free with in-app purchases
- Rating: 3.90/5 from 28 App Store ratings · 323 written reviews indexed
- Age rating: 4+
- Requires: iOS 15.6 · 1 MB
- Languages: American English
- Released: 2019-02-12
- Data updated: 2026-08-05
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/calc/id285807159/reviews.md

## What is Calc?

Calc is a beautiful simple tape calculator for your iPhone and iPad with a uniq user interface.

Features:
- universal App for your iPhone and iPad
- Slide Over and Split View support
- basic calculation
- lots of scientific functions
- decimal, hexadecimal, binary and octal conversion and calculations
- currency conversion
- uniq and easy percentage concept
- unit conversions
- scrollable calculation history
- calculation history can be shared
- 10 color themes

Privacy Policy: https://apps.micw.org/pp.php
Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

## Key features

- Universal app for iPhone and iPad
- Basic and scientific calculations
- Number base conversions (decimal, hex, binary, octal)
- Currency and unit conversions
- Scrollable calculation history
- 10 color themes

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| Calc Pro | $0.99 | per month |
| Calc Pro | $4.99 | per year |


## What do users think of Calc?

Overall sentiment: positive

**Pros**

- 🚀 Free app
- 👍 Simple and easy to use
- 📜 Tape/history feature
- 🎨 Customizable colors
- 📤 Ability to email calculations
- 💡 Useful conversions
- 🔍 Detailed scientific functions

**Cons**

- 🐛 Crashes or freezes on some devices
- 🔊 Annoying key click sounds
- 📜 Scrolling to see recent calculations
- 🔍 Overcrowded interface with too many functions

**Commonly reported bugs**

- Percentage calculations not working correctly
- Cos 90 showing incorrect result

**Most requested features**

- Copy and paste support
- Larger buttons for easier use
- Ability to clear calculation history
- Auto-insert previous result when using operators
- Landscape mode support
- Formatting for large numbers (e.g. 1,000,000)

## Recent user reviews (10 of 323)

All indexed reviews: https://appshunter.io/ios/app/calc/id285807159/reviews.md

### 4/5 — 答えが見えない

*2025-10-04, version 2.3.2*

計算履歴が増えると「=」を押すたびにスクロールされて最新の答えが表示されなくなってしまった

### 5/5 — Лучший

*2025-09-18, version 2.3.2*

Самый лучший калькулятор! Быстрый, с историей и возможностью писать выражения со скобками. Есть небольшой баг с прокруткой истории в новых версиях iOS, но, всё равно пользоваться можно :) 

Все бы такие программы делали! Прямо с душой...

### 5/5 — much better than apple’s calculator

*2025-06-03, version 2.3.2*

free, simple, has tape, no ads, color options, looks great on a big ipad. Apps this useful are generous and rare in 2025. thank you!

### 5/5 — 1番使いやすい

*2025-01-18, version 2.3.1*

3GSの頃からずっと使っています。1番使いやすい電卓アプリだと思います。有料でも良いので更新を続けて欲しいです。

### 5/5 — thx :-) RET RET RET ... plz

*2024-11-23, version 2.3.1*

I've been using it for 10 years, and I'm grateful for this great free app that traditional hackers love.

The only thing I think it's missing is the ability to reuse formulas like in the history.

I think it would be nice if you could load previous formulas by pressing ret.

### 5/5 — The best Calc app I have used

*2024-04-30, version 2.3.1*

This is the best calculator app I have used after trying over 20 apps. This has cusomizibility, no ads and a very functional design on iPads.

### 1/5 — 前回アプデで履歴をスクロールしなければいけなくなって、使いづらい

*2023-08-26, version 2.3.1*

前回アプデで、新しい計算をしても履歴を下までスクロールしなければ確認できない。
新しい計算は一番上の行に表示するか、最新の計算まで自動でスクロールするか、表示するか修正してください。
本当に使いづらい。

### 2/5 — アプリを再度開くと履歴の1番上に戻っている

*2023-08-26, version 2.3.1*

アプリを閉じて再度開くと、履歴の1番上に画面が戻っていて、履歴が長い場合、新しい計算結果を見るのに再度なが〜くスクロールしなくてはならなくなった！
困る
改善してほしい

### 1/5 — 早く直して

*2023-05-12, version 2.3.1*

他レビューにもあるように、スクロールしないと最新計算結果が見えません。もう直す気なきんですかね？

### 3/5 — 計算結果が…

*2023-04-27, version 2.3.1*

アプデしてから多くの計算結果を残したままにすると、次回計算した時に上から古い順に並ぶので、長く下にスクロールしなくてはならない

前は一番下を表示してくれてたのに

直し方あるのかな？
誰か教えて(笑)

## Frequently asked questions about Calc

### What does Calc do?

Calc is a simple tape calculator designed for iPhone and iPad. It supports basic arithmetic, advanced scientific functions, and various conversion tools for currencies, units, and number bases.

### What are the key features of Calc?

Key features include a universal app design for iPhone and iPad, Slide Over and Split View support, basic and scientific calculations, decimal, hexadecimal, binary, and octal conversions, currency and unit conversions, a scrollable calculation history, and 10 customizable color themes.

### Is Calc free to use?

Yes, the application is available for free. There are no advertisements or in-app purchases mentioned, indicating a completely free experience for users.

### What devices is Calc compatible with?

Calc is a universal app designed for both iPhone and iPad. It also supports multitasking features like Slide Over and Split View on compatible iOS devices.

### What are common use cases for Calc?

Common use cases include everyday calculations, complex scientific computations, quick currency exchanges, unit conversions for measurements, and reviewing past calculations through its history feature.

## Version history (last 5 releases)

### 2.4.3 — 2026-07-31

- bug fixes

### 2.3.2 — 2025-04-09

- bug fixes

### 2.3.1 — 2022-09-01

- bug fixes

### 2.2.0 — 2021-10-01

- bug fixes
- minor changes

### 2.1.2 — 2019-12-09

- minor changes
- bug fixes

## Apps similar to Calc

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [Unit Converter: Uneat](https://appshunter.io/ios/app/unit-converter-uneat/id1668309493) | 4.9 (17) | Free | Utilities |
| [ACalc - Scientific Calculator](https://appshunter.io/ios/app/acalc-scientific-calculator/id957798727) | 4.3 (82) | Free | Utilities |
| [ConvCalc Calculator Converter](https://appshunter.io/ios/app/convcalc-calculator-converter/id6472445974) | 4.8 (4) | Free | Utilities |
| [Calculi: Scientific Calculator](https://appshunter.io/ios/app/calculi-scientific-calculator/id452182503) | 4.4 (374) | Free | Utilities |
| [Scientific Calc](https://appshunter.io/ios/app/scientific-calc/id456710555) | 3.7 (3) | $1.99 | Utilities |
| [StudentLite](https://appshunter.io/ios/app/studentlite/id469547199) | 4.8 (6) | Free | Utilities |

## More apps by Mike Wesemann

- [BugSim](https://appshunter.io/ios/app/bugsim/id376219983)
- [64](https://appshunter.io/ios/app/64/id860201610)
- [Wetter](https://appshunter.io/ios/app/wetter/id864964263)
- [Wetter for iPhone](https://appshunter.io/ios/app/wetter-for-iphone/id1032971391)
- [Daviz](https://appshunter.io/ios/app/daviz/id1320607881)

All apps by Mike Wesemann: https://appshunter.io/developer/285807162

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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 2026-08-05.*