# MoonReader vs 星ダイアリー

The clearest difference is in-app purchases: MoonReader at none against 星ダイアリー's 22. MoonReader also leads on review sentiment (65% vs 34%) and iOS requirement (11.0 vs 16.0). 星ダイアリー's advantage is ads (none vs shown) and update cadence (every 5 weeks vs every 6 months). On price and device support there is nothing between them.

Both are free to download. 星ダイアリー sells 22 in-app purchases, starting at $1.49 per month. MoonReader asks for nothing beyond the download.

MoonReader ships an update every 6 months, 星ダイアリー every 5 weeks. The most recent releases landed on September 19, 2026 and September 11, 2026 respectively.

## The numbers

| Metric | MoonReader | 星ダイアリー |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (204 ratings)](https://appshunter.io/ios/app/moonreader/id921045502/reviews)** | — |
| Number of ratings | **204** | — |
| Positive reviews | **64.8% of reviews** | 34.3% of reviews |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 6 months | **Every 5 weeks** |
| Monetization | Ad-supported | — |
| Size | 18 MB | 81 MB |
| Requires iOS | **11.0** | 16.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 17+ | 4+ |
| Developer | [Horosco](https://appshunter.io/developer/555874531) | [ZAPPALLAS, INC.](https://appshunter.io/developer/345877804) |

## What reviewers say

### MoonReader

[App page](https://appshunter.io/ios/app/moonreader/id921045502)

Discover celestial events with detailed information on moon phases, transits, and planetary movements. Track astronomical occurrences for the next 50 years, including supermoons and Mercury retrograde periods. Enjoy a sense of flow and connection to the cosmos.

**Highlights:** Celestial event tracking (2010-2060), Transit charts for events, Moon phase information, Perigee and Super Moon data, Void of course moon times, Constellation movement tracking, Mercury retrograde dates

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

**In-app purchases:** none

**What reviewers like**

- 👍 Simple and easy to use
- 🌟 Provides useful astrological information
- 🎯 Tracks void of course moons
- 🗓️ Tracks Mercury retrogrades
- 🌙 Tracks moon phases (new/full)

**What reviewers complain about**

- 🐛 Void of course times sometimes confusing
- 🐛 Scrolling direction is counterintuitive (upwards)
- 🐛 Some users find it difficult to understand without prior knowledge
- 🐛 Spelling errors in English text (e.g., Quoter vs. Quarter)
- 🐛 Ads are distracting and annoying

**Reported bugs**

- 31st day of the month is missing in some months
- Void time is off by about an hour for some users
- Void time start and finish times can be confusing
- Notifications not working
- App crashes on iOS

**Requested features**

- Incorporate alerts for moon changing sign and entering VOC
- Add a calendar view
- Increase the limit for notification settings
- Add a memo/diary function
- Add a widget


### 星ダイアリー

[App page](https://appshunter.io/ios/app/id1316306096)

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

**In-app purchases (22)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 月額会員登録 | $1.49 | per month |
| 2018年下半期牡羊座の占い | $2.99 | one-time |
| 2020年上半期水瓶座の占い | $2.99 | one-time |
| 2020年下半期水瓶座の占い | $2.99 | one-time |
| 2021年上半期射手座の占い | $2.99 | one-time |
| 2021年上半期水瓶座の占い | $2.99 | one-time |
| 2021年下半期水瓶座の占い | $2.99 | one-time |
| 2022年上半期水瓶座の占い | $2.99 | one-time |
| 2022年下半期水瓶座の占い | $2.99 | one-time |
| 2023年上半期水瓶座の占い | $2.99 | one-time |
| 2026年下半期水瓶座の占い | $2.99 | one-time |
| 2026年上半期水瓶座の占い | $2.99 | one-time |
| スペシャル占い_2024年下半期天秤座の占い | $2.99 | one-time |
| スペシャル占い_2024年下半期水瓶座の占い | $2.99 | one-time |
| 2018年下半期牡牛座の占い | $2.99 | one-time |
| 2018年下半期蟹座の占い | $2.99 | one-time |
| 2018年下半期獅子座の占い | $2.99 | one-time |
| 2018年下半期天秤座の占い | $2.99 | one-time |
| 2018年下半期蠍座の占い | $2.99 | one-time |
| 2018年下半期射手座の占い | $2.99 | one-time |
| 2018年下半期山羊座の占い | $2.99 | one-time |
| 2018年下半期水瓶座の占い | $2.99 | one-time |


## Frequently asked questions

### Is MoonReader free?

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

### Is 星ダイアリー free?

星ダイアリー is free to download, with in-app purchases available.

### Do MoonReader or 星ダイアリー have ads?

MoonReader shows ads; 星ダイアリー does not.

### Which is updated more often, MoonReader or 星ダイアリー?

MoonReader ships an update every 6 months, and 星ダイアリー every 5 weeks. Most recently, MoonReader was updated on September 19, 2026 and 星ダイアリー on September 11, 2026.

---

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