# Birdathon vs 云培

The clearest difference is in-app purchases: Birdathon at none against 云培's 6. 云培's advantage is iOS requirement (12.0 vs 16.1). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. 云培 sells 6 one-off in-app purchases. Birdathon asks for nothing beyond the download.

Birdathon ships an update every 4 months, 云培 every 2 months. The most recent releases landed on November 6, 2026 and November 7, 2026 respectively.

## The numbers

| Metric | Birdathon | 云培 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (16 ratings)](https://appshunter.io/ios/app/birdathon/id1211977440/reviews)** | — |
| Number of ratings | **16** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 2 months** |
| Monetization | Free | — |
| Size | 192 MB | 74 MB |
| Requires iOS | 16.1 | **12.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Barry Langdon-Lassagne](https://appshunter.io/developer/730758814) | [大千 陈](https://appshunter.io/developer/1461431689) |

## 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:** none


### 云培

[App page](https://appshunter.io/ios/app/id1620286099)

**Features:** macOS Compatibility

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 6元=600金币 | $0.99 | one-time |
| 12元=1200金币 | $1.99 | one-time |
| 18元=1900金币 | $2.99 | one-time |
| 30元=3200金币 | $4.99 | one-time |
| 88元=9500金币 | $12.99 | one-time |
| 188元=20000金币 | $27.99 | one-time |


## Frequently asked questions

### Is Birdathon free?

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

### Is 云培 free?

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

### Do Birdathon or 云培 have ads?

Neither Birdathon nor 云培 shows ads.

### Which is updated more often, Birdathon or 云培?

Birdathon ships an update every 4 months, and 云培 every 2 months. Most recently, Birdathon was updated on November 6, 2026 and 云培 on November 7, 2026.

---

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