# Birthday Moon vs DIAMONDFIX STUDIO

The clearest difference is in-app purchases: DIAMONDFIX STUDIO at none against Birthday Moon's 1. DIAMONDFIX STUDIO also leads on ads (none vs shown) and update cadence (every 2 days vs every 8 months). On price and device support there is nothing between them.

Both are free to download. Birthday Moon sells 1 one-off in-app purchase. DIAMONDFIX STUDIO asks for nothing beyond the download.

Birthday Moon ships an update every 8 months, DIAMONDFIX STUDIO every 2 days. The most recent releases landed on November 8, 2026 and November 13, 2026 respectively.

## The numbers

| Metric | Birthday Moon | DIAMONDFIX STUDIO |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 8 months | **Every 2 days** |
| Size | 12 MB | 72 MB |
| Requires iOS | 18.0 | **15.1** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Ryo Tsudukihashi](https://appshunter.io/developer/1320583602) | [株式会社東京交易](https://appshunter.io/developer/1886642001) |

## What reviewers say

### Birthday Moon

[App page](https://appshunter.io/ios/app/birthday-moon/id6737449860)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Buy-As-You-Go Plan | $9.99 | one-time |


### DIAMONDFIX STUDIO

[App page](https://appshunter.io/ios/app/diamondfix-studio/id6760890196)

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

**In-app purchases:** none


## Frequently asked questions

### Is Birthday Moon free?

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

### Is DIAMONDFIX STUDIO free?

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

### Do Birthday Moon or DIAMONDFIX STUDIO have ads?

Birthday Moon shows ads; DIAMONDFIX STUDIO does not.

### Which is updated more often, Birthday Moon or DIAMONDFIX STUDIO?

Birthday Moon ships an update every 8 months, and DIAMONDFIX STUDIO every 2 days. Most recently, Birthday Moon was updated on November 8, 2026 and DIAMONDFIX STUDIO on November 13, 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.*