# AI×倍速×アファーメーション vs Shadow Work

The clearest difference is update cadence: Shadow Work at every 3 days against AI×倍速×アファーメーション's every 2 weeks. AI×倍速×アファーメーション's advantage is device support (3 vs 1) and iOS requirement (15.1 vs 17.0). 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 Shadow Work sells 2 in-app purchases, starting at $4.99 per 7 days. 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, Shadow Work every 3 days. The most recent releases landed on October 8, 2026 and October 17, 2026 respectively.

## The numbers

| Metric | AI×倍速×アファーメーション | Shadow Work |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 2 weeks | **Every 3 days** |
| Size | 70 MB | 21 MB |
| Requires iOS | **15.1** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 9+ |
| Developer | [Kazuki Yamamoto](https://appshunter.io/developer/1889110454) | [Devanuj Nath](https://appshunter.io/developer/6780533110) |

## 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 |


### Shadow Work

[App page](https://appshunter.io/ios/app/shadow-work-umbra/id6780533108)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly | $4.99 | per 7 days |
| Yearly | $39.99 | per year |


## 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 Shadow Work free?

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

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

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

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

AI×倍速×アファーメーション ships an update every 2 weeks, and Shadow Work every 3 days. Most recently, AI×倍速×アファーメーション was updated on October 8, 2026 and Shadow Work on October 17, 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.*