# 愛嘉義 vs BirdyLog

The clearest difference is in-app purchases: 愛嘉義 at none against BirdyLog's 3. BirdyLog's advantage is update cadence (every 4 weeks vs every 3 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. BirdyLog sells 3 in-app purchases, starting at $0.99 per month. 愛嘉義 asks for nothing beyond the download.

愛嘉義 ships an update every 3 months, BirdyLog every 4 weeks. The most recent releases landed on November 2, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | 愛嘉義 | BirdyLog |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 4 weeks** |
| Size | 25 MB | 45 MB |
| Requires iOS | **15.0** | 15.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [chiayi city government](https://appshunter.io/developer/590416430) | [YI-CHEN HO](https://appshunter.io/developer/1896320050) |

## What reviewers say

### 愛嘉義

[App page](https://appshunter.io/ios/app/id1223249488)

**In-app purchases:** none


### BirdyLog

[App page](https://appshunter.io/ios/app/birdylog/id6766737385)

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| BirdyLog Pro | $0.99 | per month |
| BirdyLog Pro | $4.99 | per 6 months |
| BirdyLog Pro | $8.99 | per year |


## Frequently asked questions

### Is 愛嘉義 free?

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

### Is BirdyLog free?

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

### Do 愛嘉義 or BirdyLog have ads?

Neither 愛嘉義 nor BirdyLog shows ads.

### Which is updated more often, 愛嘉義 or BirdyLog?

愛嘉義 ships an update every 3 months, and BirdyLog every 4 weeks. Most recently, 愛嘉義 was updated on November 2, 2026 and BirdyLog on October 31, 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.*