# ai vs FlipShadow

The clearest difference is in-app purchases: ai at none against FlipShadow's 1. On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. FlipShadow sells 1 one-off in-app purchase. ai asks for nothing beyond the download.

## The numbers

| Metric | ai | FlipShadow |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | — | Every 6 days |
| Size | 1 MB | 4 MB |
| Requires iOS | **17.0** | 17.6 |
| Devices | iPhone, iPad | **iPhone, iPad, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [nakamura yusaku](https://appshunter.io/developer/1662214416) | [Jong Seon Lee](https://appshunter.io/developer/1755967230) |

## What reviewers say

### ai

[App page](https://appshunter.io/ios/app/ai-tango/id6670333761)

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

**In-app purchases:** none


### FlipShadow

[App page](https://appshunter.io/ios/app/flipshadow-flash-cards/id6758394253)

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Lifetime Subsription | $9.99 | one-time |


## Frequently asked questions

### Is ai free?

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

### Is FlipShadow free?

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

### Do ai or FlipShadow have ads?

Neither ai nor FlipShadow shows ads.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*