# i vs 息律

The clearest difference is in-app purchases: 息律 at none against i's 4. On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. i sells 4 in-app purchases, starting at $0.99 per month. 息律 asks for nothing beyond the download.

## The numbers

| Metric | i | 息律 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/i-dance/id6780227143/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 80.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 weeks | — |
| Monetization | Free with in-app purchases | — |
| Size | 168 MB | 20 MB |
| Requires iOS | 15.1 | **15.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [炜 阮](https://appshunter.io/developer/6778856938) | [赋然 董](https://appshunter.io/developer/6817381031) |

## What reviewers say

### i

[App page](https://appshunter.io/ios/app/i-dance/id6780227143)

This app helps dancers record, review, and track their progress. It offers tools like mirroring, side-by-side comparison with instructors, and automatic social media cropping. Save every dance and see your improvement visually.

**Highlights:** Video recording and playback, Mirroring and side-by-side comparison, Automatic social media cropping, Dance genre and notes logging, Monthly statistics and cloud backup, Practice assistant with suggestions

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Basic 包月 · 20GB 云端 | $0.99 | per month |
| Pro 包月 · 300GB 云端 | $2.99 | per month |
| Basic 包年 · 20GB 云端 | $14.99 | per year |
| Pro 包年 · 300GB 云端 | $29.99 | per year |


### 息律

[App page](https://appshunter.io/ios/app/id6817825518)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is i free?

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

### Is 息律 free?

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

### Do i or 息律 have ads?

Neither i nor 息律 shows ads.

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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.*