# i vs RiLAX

The clearest difference is update cadence: RiLAX at daily against i's every 9 months. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

i ships an update every 9 months, RiLAX daily. The most recent releases landed on November 7, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | i | RiLAX |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 9 months | **Daily** |
| Size | 12 MB | 26 MB |
| Requires iOS | **15.6** | 16.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [CO-LUCK ENTERPRISE CO., LTD](https://appshunter.io/developer/1251782804) | [Open Road Solutions, Inc.](https://appshunter.io/developer/1445494820) |

## What reviewers say

### i

[App page](https://appshunter.io/ios/app/i-btpsensor/id1506874966)

**Features:** macOS Compatibility

**In-app purchases:** none


### RiLAX

[App page](https://appshunter.io/ios/app/rilax/id6764534343)

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

**In-app purchases:** none


## Frequently asked questions

### Is i free?

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

### Is RiLAX free?

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

### Do i or RiLAX have ads?

Neither i nor RiLAX shows ads.

### Which is updated more often, i or RiLAX?

i ships an update every 9 months, and RiLAX daily. Most recently, i was updated on November 7, 2026 and RiLAX on November 5, 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.*