# 月の満ち欠けAR＋Jr vs 惑星AR

月の満ち欠けAR＋Jr and 惑星AR are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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

Both ship on a similar rhythm, roughly every 7 months. The most recent releases landed on September 16, 2026 and June 3, 2026 respectively.

## The numbers

| Metric | 月の満ち欠けAR＋Jr | 惑星AR |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 7 months | Every 7 months |
| Monetization | — | Free |
| Size | 81 MB | 81 MB |
| Requires iOS | 13.0 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Hiroyuki Nakano](https://appshunter.io/developer/1091174971) | [Thunderbird, Inc.](https://appshunter.io/developer/1066532988) |

## What reviewers say

### 月の満ち欠けAR＋Jr

[App page](https://appshunter.io/ios/app/arjr/id1568980853)

**Features:** macOS Compatibility

**In-app purchases:** none


### 惑星AR

[App page](https://appshunter.io/ios/app/ar/id1575645390)

Explore the solar system with interactive visualizations. Understand planetary sizes and distances through intuitive modes, and learn fascinating facts with quizzes. Ideal for grasping astronomical concepts visually.

**Highlights:** Size comparison mode, Distance comparison mode, Orbit visualization, Interactive 3D manipulation, Detailed planet information, Quiz-based trivia

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is 月の満ち欠けAR＋Jr free?

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

### Is 惑星AR free?

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

### Do 月の満ち欠けAR＋Jr or 惑星AR have ads?

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

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

月の満ち欠けAR＋Jr ships an update every 7 months, and 惑星AR every 7 months. Most recently, 月の満ち欠けAR＋Jr was updated on September 16, 2026 and 惑星AR on June 3, 2026.

---

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