# 国家1級自動車整備士　問題集 vs Simple Study Stamp

The clearest difference is ads: 国家1級自動車整備士　問題集 at none against Simple Study Stamp's shown. Simple Study Stamp's advantage is update cadence (every 10 days vs monthly). On price, in-app purchases, device support and iOS requirement there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

国家1級自動車整備士　問題集 ships an update monthly, Simple Study Stamp every 10 days. The most recent releases landed on October 2, 2026 and September 30, 2026 respectively.

## The numbers

| Metric | 国家1級自動車整備士　問題集 | Simple Study Stamp |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Monthly | **Every 10 days** |
| Size | 28 MB | 10 MB |
| Requires iOS | **16.0** | 17.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Tatsuki Kato](https://appshunter.io/developer/1494538555) | [Futoshi Akahoshi](https://appshunter.io/developer/1811302322) |

## What reviewers say

### 国家1級自動車整備士　問題集

[App page](https://appshunter.io/ios/app/1/id6756804508)

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

**In-app purchases:** none


### Simple Study Stamp

[App page](https://appshunter.io/ios/app/simple-study-stamp/id6757266510)

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

**In-app purchases:** none


## Frequently asked questions

### Is 国家1級自動車整備士　問題集 free?

国家1級自動車整備士　問題集 is free to download, with no in-app purchases.

### Is Simple Study Stamp free?

Simple Study Stamp is free to download, with no in-app purchases.

### Do 国家1級自動車整備士　問題集 or Simple Study Stamp have ads?

Simple Study Stamp shows ads; 国家1級自動車整備士　問題集 does not.

### Which is updated more often, 国家1級自動車整備士　問題集 or Simple Study Stamp?

国家1級自動車整備士　問題集 ships an update monthly, and Simple Study Stamp every 10 days. Most recently, 国家1級自動車整備士　問題集 was updated on October 2, 2026 and Simple Study Stamp on September 30, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*