# Libry vs 月の満ち欠けAR＋

The clearest difference is review sentiment: 月の満ち欠けAR＋ at 100% against Libry's 12%. 月の満ち欠けAR＋ also leads on iOS requirement (12.0 vs 15.0). On price, update cadence, ads and in-app purchases there is nothing between them.

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

Libry ships an update every 2 months, 月の満ち欠けAR＋ every 5 weeks. The most recent releases landed on October 13, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | Libry | 月の満ち欠けAR＋ |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 11.8% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 5 weeks** |
| Monetization | Free | Free |
| Size | 106 MB | 69 MB |
| Requires iOS | 15.0 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Libry Inc.](https://appshunter.io/developer/1031867351) | [Hiroyuki Nakano](https://appshunter.io/developer/1091174971) |

## 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


### 月の満ち欠けAR＋

[App page](https://appshunter.io/ios/app/ar/id1511461024)

This app uses augmented reality to visualize the relationship between the sun, moon, and Earth. It allows users to observe lunar phases and celestial movements from various perspectives, including a ground-level view.

**Highlights:** AR visualization of sun, moon, and Earth, Observe lunar phases from 8 positions, Simulate moon's orbit, Realistic surface textures for Earth and Moon, Adjustable celestial body scale, Ground-level observation mode, Avatar for user perspective

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Libry free?

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

### Is 月の満ち欠けAR＋ free?

月の満ち欠けAR＋ is free to download, with no in-app purchases.

### Do Libry or 月の満ち欠けAR＋ have ads?

Neither Libry nor 月の満ち欠けAR＋ shows ads.

### Which is updated more often, Libry or 月の満ち欠けAR＋?

Libry ships an update every 2 months, and 月の満ち欠けAR＋ every 5 weeks. Most recently, Libry was updated on October 13, 2026 and 月の満ち欠けAR＋ on October 9, 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.*