# First05 vs 倍速時計

The clearest difference is in-app purchases: First05 at none against 倍速時計's 1. First05 also leads on update cadence (every 2 days vs every 3 weeks). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. 倍速時計 sells 1 one-off in-app purchase. First05 asks for nothing beyond the download.

First05 ships an update every 2 days, 倍速時計 every 3 weeks. The most recent releases landed on October 31, 2026 and November 6, 2026 respectively.

## The numbers

| Metric | First05 | 倍速時計 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 2 days** | Every 3 weeks |
| Size | 4 MB | 2 MB |
| Requires iOS | 17.6 | **17.0** |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Rapro](https://appshunter.io/developer/6772112879) | [Maho Ishikawa](https://appshunter.io/developer/6793993796) |

## What reviewers say

### First05

[App page](https://appshunter.io/ios/app/first05/id6772112877)

**In-app purchases:** none


### 倍速時計

[App page](https://appshunter.io/ios/app/id6793993794)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro（買い切り） | $1.99 | one-time |


## Frequently asked questions

### Is First05 free?

First05 is free to download, with no in-app purchases.

### Is 倍速時計 free?

倍速時計 is free to download, with in-app purchases available.

### Do First05 or 倍速時計 have ads?

Neither First05 nor 倍速時計 shows ads.

### Which is updated more often, First05 or 倍速時計?

First05 ships an update every 2 days, and 倍速時計 every 3 weeks. Most recently, First05 was updated on October 31, 2026 and 倍速時計 on November 6, 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.*