# ねこ計算ドリル vs Double Digits

The clearest difference is update cadence: Double Digits at every 5 days against ねこ計算ドリル's every 3 weeks. 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.

ねこ計算ドリル ships an update every 3 weeks, Double Digits every 5 days. The most recent releases landed on October 25, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | ねこ計算ドリル | Double Digits |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 5 days** |
| Size | 27 MB | 28 MB |
| Requires iOS | **14.0** | 15.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Kaori Kurosawa](https://appshunter.io/developer/1777069285) | [shota shimogama](https://appshunter.io/developer/6796290145) |

## What reviewers say

### ねこ計算ドリル

[App page](https://appshunter.io/ios/app/id6755174772)

**In-app purchases:** none


### Double Digits

[App page](https://appshunter.io/ios/app/double-digits-mental-math/id6796290143)

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

**In-app purchases:** none


## Frequently asked questions

### Is ねこ計算ドリル free?

ねこ計算ドリル is free to download, with no in-app purchases.

### Is Double Digits free?

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

### Do ねこ計算ドリル or Double Digits have ads?

Neither ねこ計算ドリル nor Double Digits shows ads.

### Which is updated more often, ねこ計算ドリル or Double Digits?

ねこ計算ドリル ships an update every 3 weeks, and Double Digits every 5 days. Most recently, ねこ計算ドリル was updated on October 25, 2026 and Double Digits on October 24, 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.*