# ABook Check vs GEMBA Note Viewer 7

The clearest difference is update cadence: GEMBA Note Viewer 7 at every 3 weeks against ABook Check's every 2 months. ABook Check's advantage is iOS requirement (10.0 vs 17.7). 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.

ABook Check ships an update every 2 months, GEMBA Note Viewer 7 every 3 weeks. The most recent releases landed on September 15, 2026 and August 7, 2026 respectively.

## The numbers

| Metric | ABook Check | GEMBA Note Viewer 7 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 3 weeks** |
| Size | 80 MB | 260 MB |
| Requires iOS | **10.0** | 17.7 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [AGENTEC Co.,Ltd.](https://appshunter.io/developer/454472728) | [MetaMoJi Corporation](https://appshunter.io/developer/449808118) |

## What reviewers say

### ABook Check

[App page](https://appshunter.io/ios/app/abook-check/id1459984208)

**In-app purchases:** none


### GEMBA Note Viewer 7

[App page](https://appshunter.io/ios/app/gemba-note-viewer-7/id6738086613)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is ABook Check free?

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

### Is GEMBA Note Viewer 7 free?

GEMBA Note Viewer 7 is free to download, with no in-app purchases.

### Do ABook Check or GEMBA Note Viewer 7 have ads?

Neither ABook Check nor GEMBA Note Viewer 7 shows ads.

### Which is updated more often, ABook Check or GEMBA Note Viewer 7?

ABook Check ships an update every 2 months, and GEMBA Note Viewer 7 every 3 weeks. Most recently, ABook Check was updated on September 15, 2026 and GEMBA Note Viewer 7 on August 7, 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.*