# SimpleAcceleration vs 歩行速度

The clearest difference is in-app purchases: SimpleAcceleration at none against 歩行速度's 1. SimpleAcceleration also leads on update cadence (every 3 weeks vs every 3 months) and device support (3 vs 1). On price and ads there is nothing between them.

Both are free to download. 歩行速度 sells 1 one-off in-app purchase. SimpleAcceleration asks for nothing beyond the download.

SimpleAcceleration ships an update every 3 weeks, 歩行速度 every 3 months. The most recent releases landed on October 14, 2026 and October 18, 2026 respectively.

## The numbers

| Metric | SimpleAcceleration | 歩行速度 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 3 months |
| Size | 13 MB | 5 MB |
| Requires iOS | **15.0** | 18.4 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 12+ | 4+ |
| Developer | [yuuki iwamoto](https://appshunter.io/developer/1039662444) | [Keisuke Nakashima](https://appshunter.io/developer/1691259083) |

## What reviewers say

### SimpleAcceleration

[App page](https://appshunter.io/ios/app/simpleacceleration/id1039662445)

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

**In-app purchases:** none


### 歩行速度

[App page](https://appshunter.io/ios/app/id6752279363)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| プレミアム | $1.99 | one-time |


## Frequently asked questions

### Is SimpleAcceleration free?

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

### Is 歩行速度 free?

歩行速度 is free to download, with in-app purchases available.

### Do SimpleAcceleration or 歩行速度 have ads?

Neither SimpleAcceleration nor 歩行速度 shows ads.

### Which is updated more often, SimpleAcceleration or 歩行速度?

SimpleAcceleration ships an update every 3 weeks, and 歩行速度 every 3 months. Most recently, SimpleAcceleration was updated on October 14, 2026 and 歩行速度 on October 18, 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.*