# 特許情報保存 vs Pieto Timer

The clearest difference is in-app purchases: 特許情報保存 at none against Pieto Timer's 3. 特許情報保存 also leads on iOS requirement (11.0 vs 18.0). Pieto Timer's advantage is ads (none vs shown) and update cadence (every 4 days vs every 2 months). On price and device support there is nothing between them.

Both are free to download. Pieto Timer sells 3 one-off in-app purchases. 特許情報保存 asks for nothing beyond the download.

特許情報保存 ships an update every 2 months, Pieto Timer every 4 days. Both last shipped on October 13, 2026.

## The numbers

| Metric | 特許情報保存 | Pieto Timer |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 66.7% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 2 months | **Every 4 days** |
| Size | 18 MB | 24 MB |
| Requires iOS | **11.0** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 17+ | 4+ |
| Developer | [Legal Prompt Inc.](https://appshunter.io/developer/1490746932) | [wataru takahashi](https://appshunter.io/developer/1896618750) |

## What reviewers say

### 特許情報保存

[App page](https://appshunter.io/ios/app/id1532651790)

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

**In-app purchases:** none


### Pieto Timer

[App page](https://appshunter.io/ios/app/pieto-timer/id6768957592)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| コーヒー 1 杯 | $0.99 | one-time |
| ビール 1 杯 | $2.99 | one-time |
| ピザ 1 枚 | $6.99 | one-time |


## Frequently asked questions

### Is 特許情報保存 free?

特許情報保存 is free to download, with no in-app purchases.

### Is Pieto Timer free?

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

### Do 特許情報保存 or Pieto Timer have ads?

特許情報保存 shows ads; Pieto Timer does not.

### Which is updated more often, 特許情報保存 or Pieto Timer?

特許情報保存 ships an update every 2 months, and Pieto Timer every 4 days. Most recently, 特許情報保存 was updated on October 13, 2026 and Pieto Timer on October 13, 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.*