# ActiveU vs Stretch Timer Interval HIIT

The clearest difference is in-app purchases: ActiveU at none against Stretch Timer Interval HIIT's 2. ActiveU also leads on ads (none vs shown) and iOS requirement (11.0 vs 16.0). Stretch Timer Interval HIIT's advantage is update cadence (every 2 weeks vs every 6 months). On price and device support there is nothing between them.

Both are free to download. Stretch Timer Interval HIIT sells 2 in-app purchases, starting at $3.99 per month. ActiveU asks for nothing beyond the download.

ActiveU ships an update every 6 months, Stretch Timer Interval HIIT every 2 weeks. The most recent releases landed on September 13, 2026 and September 23, 2026 respectively.

## The numbers

| Metric | ActiveU | Stretch Timer Interval HIIT |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.5 (2 ratings)](https://appshunter.io/ios/app/stretch-timer-interval-hiit/id6482106910/reviews)** |
| Number of ratings | — | **2** |
| Positive reviews | — | 75.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 6 months | **Every 2 weeks** |
| Monetization | — | Free with in-app purchases |
| Size | 47 MB | 192 MB |
| Requires iOS | **11.0** | 16.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [林 唐](https://appshunter.io/developer/1480803038) | [NilCraft Inc.](https://appshunter.io/developer/458823527) |

## What reviewers say

### ActiveU

[App page](https://appshunter.io/ios/app/activeu/id1480803039)

**Features:** macOS Compatibility

**In-app purchases:** none


### Stretch Timer Interval HIIT

[App page](https://appshunter.io/ios/app/stretch-timer-interval-hiit/id6482106910)

This app helps you build and maintain a consistent stretching routine. Customize your workouts with adjustable sets and times, track your progress with a calendar view, and enjoy a user-friendly interface with dark mode support. It's designed to make daily stretching an effortless habit.

**Highlights:** Customizable sets and times, Multiple stretching menus, Calendar history view, Adjustable sound effects, Dark mode support, Automatic backup (premium)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Features | $3.99 | per month |
| Premium features | $39.99 | per year |


## Frequently asked questions

### Is ActiveU free?

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

### Is Stretch Timer Interval HIIT free?

Stretch Timer Interval HIIT is free to download, with in-app purchases available.

### Do ActiveU or Stretch Timer Interval HIIT have ads?

Stretch Timer Interval HIIT shows ads; ActiveU does not.

### Which is updated more often, ActiveU or Stretch Timer Interval HIIT?

ActiveU ships an update every 6 months, and Stretch Timer Interval HIIT every 2 weeks. Most recently, ActiveU was updated on September 13, 2026 and Stretch Timer Interval HIIT on September 23, 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.*