# Let's Count 123 vs Onikeisan

The clearest difference is ads: Onikeisan at none against Let's Count 123's shown. Onikeisan also leads on update cadence (every 9 days vs every 5 months). Let's Count 123's advantage is iOS requirement (10.0 vs 12.0). On price, 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.

Let's Count 123 ships an update every 5 months, Onikeisan every 9 days. The most recent releases landed on October 26, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | Let's Count 123 | Onikeisan |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 5 months | **Every 9 days** |
| Size | 95 MB | 37 MB |
| Requires iOS | **10.0** | 12.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Takahiro Yamada](https://appshunter.io/developer/1261222102) | [iori kojima](https://appshunter.io/developer/1493044568) |

## What reviewers say

### Let's Count 123

[App page](https://appshunter.io/ios/app/lets-count-123/id1287064060)

**Features:** macOS Compatibility

**In-app purchases:** none


### Onikeisan

[App page](https://appshunter.io/ios/app/onikeisan-n-back/id6745093026)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Let's Count 123 free?

Let's Count 123 is free to download, with no in-app purchases.

### Is Onikeisan free?

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

### Do Let's Count 123 or Onikeisan have ads?

Let's Count 123 shows ads; Onikeisan does not.

### Which is updated more often, Let's Count 123 or Onikeisan?

Let's Count 123 ships an update every 5 months, and Onikeisan every 9 days. Most recently, Let's Count 123 was updated on October 26, 2026 and Onikeisan on October 30, 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.*