# RedoCalc vs Calculator

The clearest difference is in-app purchases: RedoCalc at none against Calculator's 1. RedoCalc also leads on update cadence (every 3 days vs every 8 days). Calculator's advantage is ads (none vs shown) and iOS requirement (13.0 vs 18.0). On price and device support there is nothing between them.

Both are free to download. Calculator sells 1 one-off in-app purchase. RedoCalc asks for nothing beyond the download.

RedoCalc ships an update every 3 days, Calculator every 8 days. The most recent releases landed on October 25, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | RedoCalc | Calculator |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | **Every 3 days** | Every 8 days |
| Size | 3 MB | 25 MB |
| Requires iOS | 18.0 | **13.0** |
| Devices | iPhone | **iPhone, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Toshiyuki Kuwabara](https://appshunter.io/developer/1649322074) | [jongku han](https://appshunter.io/developer/1871971456) |

## What reviewers say

### RedoCalc

[App page](https://appshunter.io/ios/app/redocalc/id6743318834)

**Features:** macOS Compatibility

**In-app purchases:** none


### Calculator

[App page](https://appshunter.io/ios/app/calculator-number-block/id6759218122)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $0.99 | one-time |


## Frequently asked questions

### Is RedoCalc free?

RedoCalc is free to download, with no in-app purchases.

### Is Calculator free?

Calculator is free to download, with in-app purchases available.

### Do RedoCalc or Calculator have ads?

RedoCalc shows ads; Calculator does not.

### Which is updated more often, RedoCalc or Calculator?

RedoCalc ships an update every 3 days, and Calculator every 8 days. Most recently, RedoCalc was updated on October 25, 2026 and Calculator on October 31, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*