# Libry vs 音読メーター

The clearest difference is in-app purchases: Libry at none against 音読メーター's 2. On price, review sentiment, update cadence and ads there is nothing between them.

Both are free to download. 音読メーター sells 2 in-app purchases, starting at $1.99 per month. Libry asks for nothing beyond the download.

Libry ships an update every 2 months, 音読メーター every 5 weeks. The most recent releases landed on November 1, 2026 and October 29, 2026 respectively.

## The numbers

| Metric | Libry | 音読メーター |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[3.0 (4 ratings)](https://appshunter.io/ios/app/id1439524119/reviews)** |
| Number of ratings | — | **4** |
| Positive reviews | 11.8% of reviews | **16.7% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 5 weeks** |
| Monetization | Free | — |
| Size | 106 MB | 208 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Libry Inc.](https://appshunter.io/developer/1031867351) | [Kazuya Muto](https://appshunter.io/developer/1420023235) |

## What reviewers say

### Libry

[App page](https://appshunter.io/ios/app/libry/id1147557530)

Transform your physical study materials into digital interactive lessons. This app analyzes your learning patterns to recommend challenging and forgettable questions, offering personalized study support. It allows you to search for specific problems and track your progress.

**Highlights:** Digital textbook viewer, Review forgotten questions, Practice difficult questions, Search problems by keyword, Track favorite and incorrect answers, Learning history

**Features:** Vision Pro support

**In-app purchases:** none


### 音読メーター

[App page](https://appshunter.io/ios/app/id1439524119)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| プレミアムプランM | $1.99 | per month |
| プレミアムプラン（年） | $24.99 | per year |


## Frequently asked questions

### Is Libry free?

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

### Is 音読メーター free?

音読メーター is free to download, with in-app purchases available.

### Do Libry or 音読メーター have ads?

Neither Libry nor 音読メーター shows ads.

### Which is updated more often, Libry or 音読メーター?

Libry ships an update every 2 months, and 音読メーター every 5 weeks. Most recently, Libry was updated on November 1, 2026 and 音読メーター on October 29, 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.*