# KOOL. vs ReBreath

The clearest difference is in-app purchases: KOOL. at none against ReBreath's 9. KOOL. also leads on iOS requirement (12.0 vs 15.5). ReBreath's advantage is update cadence (weekly vs every 3 months). On price, ads and device support there is nothing between them.

Both are free to download. ReBreath sells 8 in-app purchases, starting at $4.99 per 7 days. KOOL. asks for nothing beyond the download.

KOOL. ships an update every 3 months, ReBreath weekly. The most recent releases landed on October 7, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | KOOL. | ReBreath |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (3 ratings)](https://appshunter.io/ios/app/rebreath/id6740490715/reviews)** |
| Number of ratings | — | **3** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | **Weekly** |
| Monetization | — | Free with in-app purchases |
| Size | 49 MB | 147 MB |
| Requires iOS | **12.0** | 15.5 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Zochil Technology](https://appshunter.io/developer/1488589261) | [Xoltar Inc.](https://appshunter.io/developer/1612101939) |

## What reviewers say

### KOOL.

[App page](https://appshunter.io/ios/app/kool/id6444498971)

**Features:** macOS Compatibility

**In-app purchases:** none


### ReBreath

[App page](https://appshunter.io/ios/app/rebreath/id6740490715)

This AI-powered app offers personalized coaching and 24/7 support to help you quit smoking at your own pace. It utilizes behavioral therapy techniques and provides strategies to manage cravings, aiming to be more effective than traditional methods.

**Highlights:** AI-powered personalized coaching, 24/7 support for quitting smoking, Tailored guidance and strategies, Coping mechanisms for cravings, Quit at your own pace, Behavioral therapy techniques

**Features:** Vision Pro support

**In-app purchases (8)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Access | $4.99 | per 7 days |
| Monthly Access | $9.99 | per month |
| Monthly Access | $9.99 | per month |
| Yearly Access | $89.99 | per year |
| Yearly Access | $89.99 | per year |
| 1 Month access | $49.99 | one-time |
| 3 Months access | $69.99 | one-time |
| 6 Months access | $99.99 | one-time |


## Frequently asked questions

### Is KOOL. free?

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

### Is ReBreath free?

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

### Do KOOL. or ReBreath have ads?

Neither KOOL. nor ReBreath shows ads.

### Which is updated more often, KOOL. or ReBreath?

KOOL. ships an update every 3 months, and ReBreath weekly. Most recently, KOOL. was updated on October 7, 2026 and ReBreath on October 6, 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.*