# studio Cocoon～コクーン～ vs Stretch Timer Interval HIIT

The clearest difference is in-app purchases: studio Cocoon～コクーン～ at none against Stretch Timer Interval HIIT's 2. studio Cocoon～コクーン～ also leads on ads (none vs shown) and iOS requirement (12.0 vs 16.0). Stretch Timer Interval HIIT's advantage is update cadence (every 2 weeks vs every 43 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. studio Cocoon～コクーン～ asks for nothing beyond the download.

studio Cocoon～コクーン～ ships an update every 43 months, Stretch Timer Interval HIIT every 2 weeks. The most recent releases landed on October 26, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | studio Cocoon～コクーン～ | 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 43 months | **Every 2 weeks** |
| Monetization | — | Free with in-app purchases |
| Size | 15 MB | 259 MB |
| Requires iOS | **12.0** | 16.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [MICHIE UEHARA](https://appshunter.io/developer/1460785285) | [NilCraft Inc.](https://appshunter.io/developer/458823527) |

## What reviewers say

### studio Cocoon～コクーン～

[App page](https://appshunter.io/ios/app/studio-cocoon/id1460785676)

**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 studio Cocoon～コクーン～ free?

studio Cocoon～コクーン～ 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 studio Cocoon～コクーン～ or Stretch Timer Interval HIIT have ads?

Stretch Timer Interval HIIT shows ads; studio Cocoon～コクーン～ does not.

### Which is updated more often, studio Cocoon～コクーン～ or Stretch Timer Interval HIIT?

studio Cocoon～コクーン～ ships an update every 43 months, and Stretch Timer Interval HIIT every 2 weeks. Most recently, studio Cocoon～コクーン～ was updated on October 26, 2026 and Stretch Timer Interval HIIT on October 30, 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.*