# 対局時計Simple vs Shogi Diagram Maker

The clearest difference is ads: 対局時計Simple at none against Shogi Diagram Maker's shown. 対局時計Simple also leads on iOS requirement (13.0 vs 15.1). Shogi Diagram Maker's advantage is update cadence (every 4 months vs every 8 months). 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.

対局時計Simple ships an update every 8 months, Shogi Diagram Maker every 4 months. The most recent releases landed on September 22, 2026 and September 20, 2026 respectively.

## The numbers

| Metric | 対局時計Simple | Shogi Diagram Maker |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 8 months | **Every 4 months** |
| Size | 64 MB | 39 MB |
| Requires iOS | **13.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Tsubasa Hizono](https://appshunter.io/developer/1682928043) | [Hirobumi Maruyama](https://appshunter.io/developer/1873697752) |

## What reviewers say

### 対局時計Simple

[App page](https://appshunter.io/ios/app/simple/id6447896409)

**In-app purchases:** none


### Shogi Diagram Maker

[App page](https://appshunter.io/ios/app/shogi-diagram-maker/id6758567125)

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

**In-app purchases:** none


## Frequently asked questions

### Is 対局時計Simple free?

対局時計Simple is free to download, with no in-app purchases.

### Is Shogi Diagram Maker free?

Shogi Diagram Maker is free to download, with no in-app purchases.

### Do 対局時計Simple or Shogi Diagram Maker have ads?

Shogi Diagram Maker shows ads; 対局時計Simple does not.

### Which is updated more often, 対局時計Simple or Shogi Diagram Maker?

対局時計Simple ships an update every 8 months, and Shogi Diagram Maker every 4 months. Most recently, 対局時計Simple was updated on September 22, 2026 and Shogi Diagram Maker on September 20, 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.*