# TransKoi vs BLUEDEER

The clearest difference is in-app purchases: BLUEDEER at none against TransKoi's 6. BLUEDEER also leads on update cadence (weekly vs fortnightly) and iOS requirement (12.0 vs 14). On price, ads and device support there is nothing between them.

Both are free to download. TransKoi sells 6 in-app purchases, starting at $0.99 per 7 days. BLUEDEER asks for nothing beyond the download.

TransKoi ships an update fortnightly, BLUEDEER weekly. The most recent releases landed on September 16, 2026 and September 10, 2026 respectively.

## The numbers

| Metric | TransKoi | BLUEDEER |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Fortnightly | **Weekly** |
| Size | 22 MB | 47 MB |
| Requires iOS | 14 | **12.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [厦门智伽科技有限公司](https://appshunter.io/developer/1851952936) | [BOCOOLIFE](https://appshunter.io/developer/1799928767) |

## What reviewers say

### TransKoi

[App page](https://appshunter.io/ios/app/transkoi/id6746327674)

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

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| monthly subscribe | $0.99 | per 7 days |
| monthly subscribe | $1.99 | per month |
| 周会员 | $0.99 | one-time |
| 订阅 | $1.99 | one-time |
| 月度会员 | $3.99 | one-time |
| 年度会员 | $9.99 | one-time |


### BLUEDEER

[App page](https://appshunter.io/ios/app/bluedeer/id6759883802)

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

**In-app purchases:** none


## Frequently asked questions

### Is TransKoi free?

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

### Is BLUEDEER free?

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

### Do TransKoi or BLUEDEER have ads?

Neither TransKoi nor BLUEDEER shows ads.

### Which is updated more often, TransKoi or BLUEDEER?

TransKoi ships an update fortnightly, and BLUEDEER weekly. Most recently, TransKoi was updated on September 16, 2026 and BLUEDEER on September 10, 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.*