# Lets HIIT vs Rayl

The clearest difference is ads: Rayl at none against Lets HIIT's shown. Rayl also leads on update cadence (every 4 days vs monthly). Lets HIIT's advantage is device support (3 vs 1) and iOS requirement (15.6 vs 17.6). On price and in-app purchases there is nothing between them.

Both are free to download. Lets HIIT sells 2 in-app purchases, starting at $2.49 per month and Rayl sells 2 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

Lets HIIT ships an update monthly, Rayl every 4 days. The most recent releases landed on September 15, 2026 and September 13, 2026 respectively.

## The numbers

| Metric | Lets HIIT | Rayl |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Monthly | **Every 4 days** |
| Size | 35 MB | 12 MB |
| Requires iOS | **15.6** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [BTS Software Development Company Limited](https://appshunter.io/developer/1754895889) | [Leon Dorian Michl](https://appshunter.io/developer/1896730326) |

## What reviewers say

### Lets HIIT

[App page](https://appshunter.io/ios/app/lets-hiit-tabata-timer/id6505046723)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Ad-free Monthly | $2.49 | per month |
| Ad-free Annual | $12.99 | per year |


### Rayl

[App page](https://appshunter.io/ios/app/rayl-strength-workout-log/id6799451868)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Rayl Pro (Monthly) | $4.99 | per month |
| Rayl Pro (Yearly) | $29.99 | per year |


## Frequently asked questions

### Is Lets HIIT free?

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

### Is Rayl free?

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

### Do Lets HIIT or Rayl have ads?

Lets HIIT shows ads; Rayl does not.

### Which is updated more often, Lets HIIT or Rayl?

Lets HIIT ships an update monthly, and Rayl every 4 days. Most recently, Lets HIIT was updated on September 15, 2026 and Rayl on September 13, 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.*