# Calc+α vs RedoCalc

The clearest difference is update cadence: RedoCalc at every 3 days against Calc+α's every 3 weeks. Calc+α's advantage is iOS requirement (16.4 vs 18.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Calc+α ships an update every 3 weeks, RedoCalc every 3 days. The most recent releases landed on July 27, 2026 and September 8, 2026 respectively.

## The numbers

| Metric | Calc+α | RedoCalc |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | Yes | Yes |
| Update frequency | Every 3 weeks | **Every 3 days** |
| Monetization | Ad-supported | — |
| Size | 9 MB | 3 MB |
| Requires iOS | **16.4** | 18.0 |
| Devices | iPhone | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Ariane Inc.](https://appshunter.io/developer/449595295) | [Toshiyuki Kuwabara](https://appshunter.io/developer/1649322074) |

## What reviewers say

### Calc+α

[App page](https://appshunter.io/ios/app/calc-plus/id1454376672)

This utility app simplifies daily calculations with an intuitive interface. It features a history of your calculations, allows for easy editing and recalculation, and provides convenient tax and division functions. Organize your finances and avoid manual note-taking.

**Highlights:** Calculation history and review, Edit past calculations and recalculate, Tax-inclusive and exclusive calculation modes, Standard and reduced tax rate switching, Clear division and remainder display, Create and copy calculation sheets

**In-app purchases:** none


### RedoCalc

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

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Calc+α free?

Calc+α is free to download, with no in-app purchases.

### Is RedoCalc free?

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

### Do Calc+α or RedoCalc have ads?

Both Calc+α and RedoCalc show ads.

### Which is updated more often, Calc+α or RedoCalc?

Calc+α ships an update every 3 weeks, and RedoCalc every 3 days. Most recently, Calc+α was updated on July 27, 2026 and RedoCalc on September 8, 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.*