# Afterimage Memory vs 1級ボイラー技士問題集lite　りすさんシリーズ

The clearest difference is update cadence: Afterimage Memory at monthly against 1級ボイラー技士問題集lite　りすさんシリーズ's every 5 months. Afterimage Memory also leads on iOS requirement (15.0 vs 18.6). On price, ads, 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.

Afterimage Memory ships an update monthly, 1級ボイラー技士問題集lite　りすさんシリーズ every 5 months. The most recent releases landed on September 23, 2026 and October 1, 2026 respectively.

## The numbers

| Metric | Afterimage Memory | 1級ボイラー技士問題集lite　りすさんシリーズ |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Monthly** | Every 5 months |
| Size | 8 MB | 6 MB |
| Requires iOS | **15.0** | 18.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [YUICHI NAKATANI](https://appshunter.io/developer/476800955) | [Kazuki Baba](https://appshunter.io/developer/903350438) |

## What reviewers say

### Afterimage Memory

[App page](https://appshunter.io/ios/app/afterimage-memory/id582929800)

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

**In-app purchases:** none


### 1級ボイラー技士問題集lite　りすさんシリーズ

[App page](https://appshunter.io/ios/app/1lite/id907765335)

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

**In-app purchases:** none


## Frequently asked questions

### Is Afterimage Memory free?

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

### Is 1級ボイラー技士問題集lite　りすさんシリーズ free?

1級ボイラー技士問題集lite　りすさんシリーズ is free to download, with no in-app purchases.

### Do Afterimage Memory or 1級ボイラー技士問題集lite　りすさんシリーズ have ads?

Neither Afterimage Memory nor 1級ボイラー技士問題集lite　りすさんシリーズ shows ads.

### Which is updated more often, Afterimage Memory or 1級ボイラー技士問題集lite　りすさんシリーズ?

Afterimage Memory ships an update monthly, and 1級ボイラー技士問題集lite　りすさんシリーズ every 5 months. Most recently, Afterimage Memory was updated on September 23, 2026 and 1級ボイラー技士問題集lite　りすさんシリーズ on October 1, 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.*