# RedoCalc vs Memotto

The clearest difference is ads: Memotto at none against RedoCalc's shown. RedoCalc's advantage is update cadence (every 3 days vs every 6 days). On price, in-app purchases, device support and iOS requirement there is nothing between them.

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

RedoCalc ships an update every 3 days, Memotto every 6 days. The most recent releases landed on September 8, 2026 and September 9, 2026 respectively.

## The numbers

| Metric | RedoCalc | Memotto |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | **Every 3 days** | Every 6 days |
| Size | 3 MB | 6 MB |
| Requires iOS | 18.0 | 18.0 |
| Devices | iPhone | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Toshiyuki Kuwabara](https://appshunter.io/developer/1649322074) | [hidetaka okue](https://appshunter.io/developer/1717295865) |

## What reviewers say

### RedoCalc

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

**Features:** macOS Compatibility

**In-app purchases:** none


### Memotto

[App page](https://appshunter.io/ios/app/memotto/id6747943763)

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

**In-app purchases:** none


## Frequently asked questions

### Is RedoCalc free?

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

### Is Memotto free?

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

### Do RedoCalc or Memotto have ads?

RedoCalc shows ads; Memotto does not.

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

RedoCalc ships an update every 3 days, and Memotto every 6 days. Most recently, RedoCalc was updated on September 8, 2026 and Memotto on September 9, 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.*