# iSleepIsWell vs IntervalTimer

The clearest difference is update cadence: IntervalTimer at every 10 days against iSleepIsWell's every 2 months. IntervalTimer also leads on rating (3.7 vs 3.3). On price, ratings volume, ads and in-app purchases there is nothing between them.

Both are free to download. iSleepIsWell sells 3 in-app purchases, starting at $1.99 per month and IntervalTimer sells 3 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.

IntervalTimer holds the better App Store score, 3.7 against 3.3. Both are backed by a comparable volume of ratings — 3 and 3 respectively.

iSleepIsWell ships an update every 2 months, IntervalTimer every 10 days. The most recent releases landed on September 10, 2026 and September 21, 2026 respectively.

## The numbers

| Metric | iSleepIsWell | IntervalTimer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.3 (3 ratings)](https://appshunter.io/ios/app/isleepiswell/id6757170588/reviews) | **[3.7 (3 ratings)](https://appshunter.io/ios/app/intervaltimer-tabata-and-emom/id6758163235/reviews)** |
| Number of ratings | 3 | 3 |
| Positive reviews | 14.3% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 10 days** |
| Monetization | Freemium | Freemium |
| Size | 53 MB | 18 MB |
| Requires iOS | 18.0 | **17.0** |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [Naihe Hu](https://appshunter.io/developer/564180065) | [WD Studio](https://appshunter.io/developer/1842547806) |

## What reviewers say

### iSleepIsWell

[App page](https://appshunter.io/ios/app/isleepiswell/id6757170588)

This app uses your Apple Watch data to provide detailed sleep insights, personalized AI coaching, and a dream journal. It offers relaxation tools and social challenges to help you improve your sleep quality and achieve better rest.

**Highlights:** Smart sleep tracking from Apple Watch, AI-powered personalized sleep coaching, Dream journal with interpretation modes, Social sleep challenges and leaderboards, Relaxation tools and guided exercises, Sleep analysis and habit correlation, Tonight's sleep prediction

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Pro | $1.99 | per month |
| Yearly Pro | $14.99 | per year |
| Pro Member - Lifetime | $19.99 | one-time |


### IntervalTimer

[App page](https://appshunter.io/ios/app/intervaltimer-tabata-and-emom/id6758163235)

This app provides a minimalist yet powerful interval timer for high-intensity workouts like HIIT, Tabata, and EMOM. It features professional voice guidance, customizable templates, and a clear, large display for easy readability during exercise.

**Highlights:** Professional voice guidance, 20+ built-in workout templates, Customizable interval presets, Extra-large, readable display, Three-color phase coding, Workout session tracking

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| PRO Monthly $1.99 | $1.99 | per month |
| PRO Annual $19.99 | $9.99 | per year |
| Interval Timer Pro Lifetime | $39.99 | one-time |


## Frequently asked questions

### Is iSleepIsWell free?

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

### Is IntervalTimer free?

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

### Which has better reviews, iSleepIsWell or IntervalTimer?

IntervalTimer is rated higher. iSleepIsWell averages 3.3 out of 5 from 3 ratings, while IntervalTimer averages 3.7 from 3 ratings.

### Do iSleepIsWell or IntervalTimer have ads?

Neither iSleepIsWell nor IntervalTimer shows ads.

### Which is updated more often, iSleepIsWell or IntervalTimer?

iSleepIsWell ships an update every 2 months, and IntervalTimer every 10 days. Most recently, iSleepIsWell was updated on September 10, 2026 and IntervalTimer on September 21, 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.*