# Aviation Museums vs Messier Journal

The clearest difference is review sentiment: Messier Journal at 100% against Aviation Museums's 0%. Messier Journal also leads on rating (5.0 vs 4.5) and update cadence (every 3 months vs every 8 months). On price, ratings volume, ads and in-app purchases there is nothing between them.

Aviation Museums costs $0.99 and Messier Journal $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Messier Journal holds the better App Store score, 5.0 against 4.5. Both are backed by a comparable volume of ratings — 4 and 3 respectively. Written reviews point the same way: 0% of Aviation Museums's written reviews are positive against 100% of Messier Journal's.

Aviation Museums ships an update every 8 months, Messier Journal every 3 months. The most recent releases landed on November 1, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | Aviation Museums | Messier Journal |
| --- | --- | --- |
| Price | $0.99 | $0.99 |
| Rating | [4.5 (4 ratings)](https://appshunter.io/ios/app/aviation-museums/id445746209/reviews) | **[5.0 (3 ratings)](https://appshunter.io/ios/app/messier-journal/id6753959873/reviews)** |
| Number of ratings | **4** | 3 |
| Positive reviews | 0.0% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 8 months | **Every 3 months** |
| Monetization | Paid | Paid |
| Size | 7 MB | 158 MB |
| Requires iOS | **17.0** | 18.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [iStuff](https://appshunter.io/developer/369606386) | [Damon Degner](https://appshunter.io/developer/1845946345) |

## What reviewers say

### Aviation Museums

[App page](https://appshunter.io/ios/app/aviation-museums/id445746209)

Discover aviation museums across North America with this comprehensive directory. It lists 166 locations, offering a convenient way to find and explore aviation history.

**Highlights:** Directory of aviation museums, 166 locations listed, North American coverage, Convenient reference tool

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

**In-app purchases:** none


### Messier Journal

[App page](https://appshunter.io/ios/app/messier-journal/id6753959873)

This app helps Northern Hemisphere astronomers and astrophotographers discover, locate, and journal all 110 Messier objects. It provides detailed information, star maps, and tools to record observations and upload photos.

**Highlights:** Learn about 110 Messier objects, Locate objects with star maps, Filter objects by constellation and type, Record observation details, Upload astrophotography, Track spotted object statistics, Generate object collages

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

**In-app purchases:** none


## Frequently asked questions

### Is Aviation Museums free?

Aviation Museums costs $0.99, with no in-app purchases.

### Is Messier Journal free?

Messier Journal costs $0.99, with no in-app purchases.

### Which has better reviews, Aviation Museums or Messier Journal?

Messier Journal is rated higher. Aviation Museums averages 4.5 out of 5 from 4 ratings, while Messier Journal averages 5.0 from 3 ratings.

### Do Aviation Museums or Messier Journal have ads?

Neither Aviation Museums nor Messier Journal shows ads.

### Which is updated more often, Aviation Museums or Messier Journal?

Aviation Museums ships an update every 8 months, and Messier Journal every 3 months. Most recently, Aviation Museums was updated on November 1, 2026 and Messier Journal on October 30, 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.*