# SHOTIMER vs Byoyomi

The clearest difference is in-app purchases: SHOTIMER at none against Byoyomi's 1. SHOTIMER also leads on ads (none vs shown). Byoyomi's advantage is update cadence (weekly vs every 2 months) and iOS requirement (13.0 vs 15.0). On price and device support there is nothing between them.

Both are free to download. Byoyomi sells 1 one-off in-app purchase. SHOTIMER asks for nothing beyond the download.

SHOTIMER ships an update every 2 months, Byoyomi weekly. The most recent releases landed on October 25, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | SHOTIMER | Byoyomi |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 2 months | **Weekly** |
| Size | 40 MB | 29 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Yuki Maitani](https://appshunter.io/developer/1616391781) | [Daisaku Inoue](https://appshunter.io/developer/1884778005) |

## What reviewers say

### SHOTIMER

[App page](https://appshunter.io/ios/app/shotimer-chess-clock/id6504449480)

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

**In-app purchases:** none


### Byoyomi

[App page](https://appshunter.io/ios/app/byoyomi-kun-game-clock/id6760514705)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 広告を削除 | $2.99 | one-time |


## Frequently asked questions

### Is SHOTIMER free?

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

### Is Byoyomi free?

Byoyomi is free to download, with in-app purchases available.

### Do SHOTIMER or Byoyomi have ads?

Byoyomi shows ads; SHOTIMER does not.

### Which is updated more often, SHOTIMER or Byoyomi?

SHOTIMER ships an update every 2 months, and Byoyomi weekly. Most recently, SHOTIMER was updated on October 25, 2026 and Byoyomi on October 31, 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.*