# Birdathon vs Reentry AR

The clearest difference is review sentiment: Birdathon at 100% against Reentry AR's 33%. Birdathon also leads on ratings volume (15 vs 1). Reentry AR's advantage is in-app purchases (none vs 4) and update cadence (every 3 days vs every 4 months). On price, ads, monetization model and device support there is nothing between them.

Both are free to download. Birdathon sells 4 one-off in-app purchases. Reentry AR asks for nothing beyond the download.

Reentry AR holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: Birdathon has 15 ratings behind it against 1, so its average is the more settled of the two. Written reviews complicate that: 100% of Birdathon's written reviews are positive against 33% of Reentry AR's, so the app with the better star average is not the one people write more warmly about.

Birdathon ships an update every 4 months, Reentry AR every 3 days. The most recent releases landed on September 19, 2026 and September 2, 2026 respectively.

## The numbers

| Metric | Birdathon | Reentry AR |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.7 (15 ratings)](https://appshunter.io/ios/app/birdathon/id1211977440/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/reentry-ar/id1536701365/reviews)** |
| Number of ratings | **15** | 1 |
| Positive reviews | **100.0% of reviews** | 33.3% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 3 days** |
| Monetization | Free | Free |
| Size | 192 MB | 10 MB |
| Requires iOS | 16.1 | **13.2** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Barry Langdon-Lassagne](https://appshunter.io/developer/730758814) | [Toriningen Co.,Ltd.](https://appshunter.io/developer/361194121) |

## What reviewers say

### Birdathon

[App page](https://appshunter.io/ios/app/birdathon/id1211977440)

This app helps birdwatchers create and organize detailed checklists of their observations. It automatically records time and location, allowing for easy editing and customization. Users can visualize their sightings on maps, add field notes, and export data for sharing or further analysis.

**Highlights:** Observation-centric checklists, Automatic time and location recording, Customizable maps with boundary overlays, Field notes for additional observations, Multiple checklist sorting options, Data export to CSV and other formats, Create checklist templates

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Good Tip | $0.99 | one-time |
| Great Tip | $1.99 | one-time |
| Amazing Tip | $2.99 | one-time |
| Incredible Tip | $4.99 | one-time |


### Reentry AR

[App page](https://appshunter.io/ios/app/reentry-ar/id1536701365)

Experience the return of the Hayabusa2 re-entry capsule in augmented reality. This application visualizes the capsule's trajectory as it lands in South Australia, overlaid onto your device's camera view.

**Highlights:** Augmented reality trajectory display, Visualizes re-entry capsule path, Overlays on camera feed, Educational space mission data

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Birdathon free?

Birdathon is free to download, with in-app purchases available.

### Is Reentry AR free?

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

### Which has better reviews, Birdathon or Reentry AR?

Reentry AR is rated higher. Birdathon averages 4.7 out of 5 from 15 ratings, while Reentry AR averages 5.0 from 1 ratings.

### Do Birdathon or Reentry AR have ads?

Neither Birdathon nor Reentry AR shows ads.

### Which is updated more often, Birdathon or Reentry AR?

Birdathon ships an update every 4 months, and Reentry AR every 3 days. Most recently, Birdathon was updated on September 19, 2026 and Reentry AR on September 2, 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.*