# AI×倍速×アファーメーション vs Solfeggio Mixer

The clearest difference is update cadence: AI×倍速×アファーメーション at every 2 weeks against Solfeggio Mixer's every 2 months. AI×倍速×アファーメーション also leads on device support (3 vs 1) and iOS requirement (15.1 vs 17.6). On price, ads and in-app purchases there is nothing between them.

Both are free to download. AI×倍速×アファーメーション sells 4 in-app purchases, starting at $2.99 per month and Solfeggio Mixer sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

AI×倍速×アファーメーション ships an update every 2 weeks, Solfeggio Mixer every 2 months. The most recent releases landed on October 8, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | AI×倍速×アファーメーション | Solfeggio Mixer |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Every 2 months |
| Size | 70 MB | 34 MB |
| Requires iOS | **15.1** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Kazuki Yamamoto](https://appshunter.io/developer/1889110454) | [Soichi Ueno](https://appshunter.io/developer/1837305605) |

## What reviewers say

### AI×倍速×アファーメーション

[App page](https://appshunter.io/ios/app/ai/id6761359436)

**Features:** macOS Compatibility

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| プレミアム会員（月額） | $2.99 | per month |
| 200ポイント | $0.49 | one-time |
| 1200ポイント | $2.99 | one-time |
| 3000ポイント | $5.99 | one-time |


### Solfeggio Mixer

[App page](https://appshunter.io/ios/app/solfeggio-mixer/id6761454801)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Permanent right of use | $5.99 | one-time |


## Frequently asked questions

### Is AI×倍速×アファーメーション free?

AI×倍速×アファーメーション is free to download, with in-app purchases available.

### Is Solfeggio Mixer free?

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

### Do AI×倍速×アファーメーション or Solfeggio Mixer have ads?

Neither AI×倍速×アファーメーション nor Solfeggio Mixer shows ads.

### Which is updated more often, AI×倍速×アファーメーション or Solfeggio Mixer?

AI×倍速×アファーメーション ships an update every 2 weeks, and Solfeggio Mixer every 2 months. Most recently, AI×倍速×アファーメーション was updated on October 8, 2026 and Solfeggio Mixer on October 14, 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.*