# KetaKeta vs ReadableCalc

The clearest difference is update cadence: ReadableCalc at weekly against KetaKeta's every 34 months. ReadableCalc also leads on iOS requirement (12.0 vs 15.6). 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.

KetaKeta ships an update every 34 months, ReadableCalc weekly. The most recent releases landed on October 12, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | KetaKeta | ReadableCalc |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 34 months | **Weekly** |
| Size | 1 MB | 28 MB |
| Requires iOS | 15.6 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Masanori Mikawa](https://appshunter.io/developer/423958400) | [YONAGARE LAB](https://appshunter.io/developer/1810986554) |

## What reviewers say

### KetaKeta

[App page](https://appshunter.io/ios/app/ketaketa/id665097411)

**In-app purchases:** none


### ReadableCalc

[App page](https://appshunter.io/ios/app/readablecalc/id6747457253)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is KetaKeta free?

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

### Is ReadableCalc free?

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

### Do KetaKeta or ReadableCalc have ads?

Neither KetaKeta nor ReadableCalc shows ads.

### Which is updated more often, KetaKeta or ReadableCalc?

KetaKeta ships an update every 34 months, and ReadableCalc weekly. Most recently, KetaKeta was updated on October 12, 2026 and ReadableCalc on October 7, 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.*