# 渡鳥 vs Teracy

The clearest difference is update cadence: Teracy at every 3 weeks against 渡鳥's every 23 months. 渡鳥's advantage is iOS requirement (12.0 vs 17.2). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

渡鳥 ships an update every 23 months, Teracy every 3 weeks. The most recent releases landed on October 2, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | 渡鳥 | Teracy |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 23 months | **Every 3 weeks** |
| Size | 44 MB | 138 MB |
| Requires iOS | **12.0** | 17.2 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Leapfrog-Inc](https://appshunter.io/developer/1388782828) | [Teracy, Inc.](https://appshunter.io/developer/1612256683) |

## What reviewers say

### 渡鳥

[App page](https://appshunter.io/ios/app/id1625791111)

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

**In-app purchases:** none


### Teracy

[App page](https://appshunter.io/ios/app/teracy/id6746098603)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is 渡鳥 free?

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

### Is Teracy free?

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

### Do 渡鳥 or Teracy have ads?

Neither 渡鳥 nor Teracy shows ads.

### Which is updated more often, 渡鳥 or Teracy?

渡鳥 ships an update every 23 months, and Teracy every 3 weeks. Most recently, 渡鳥 was updated on October 2, 2026 and Teracy on October 6, 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.*