# 喵睡眠 vs IntervalTimer

The clearest difference is update cadence: IntervalTimer at every 10 days against 喵睡眠's every 3 weeks. 喵睡眠's advantage is iOS requirement (13.0 vs 17.0). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. 喵睡眠 sells 1 one-off in-app purchase 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.

喵睡眠 ships an update every 3 weeks, IntervalTimer every 10 days. The most recent releases landed on August 20, 2026 and September 21, 2026 respectively.

## The numbers

| Metric | 喵睡眠 | IntervalTimer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[3.7 (3 ratings)](https://appshunter.io/ios/app/intervaltimer-tabata-and-emom/id6758163235/reviews)** |
| Number of ratings | — | **3** |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 10 days** |
| Monetization | Free with in-app purchases | Freemium |
| Size | 44 MB | 18 MB |
| Requires iOS | **13.0** | 17.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [智平 刘](https://appshunter.io/developer/1125861933) | [WD Studio](https://appshunter.io/developer/1842547806) |

## What reviewers say

### 喵睡眠

[App page](https://appshunter.io/ios/app/app/id1590270263)

This app offers a variety of natural sounds like rain and thunderstorms to help you relax, improve focus, and sleep better. It provides a peaceful auditory experience to soothe your mind after a busy day.

**Highlights:** Natural white noise sounds, Rain and thunderstorm audio, Improved focus for work/study, Relaxation and stress relief, Sleep aid, Calming ambient sounds

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Lifetime VIP | $0.99 | 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 喵睡眠 free?

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

### Is IntervalTimer free?

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

### Do 喵睡眠 or IntervalTimer have ads?

Neither 喵睡眠 nor IntervalTimer shows ads.

### Which is updated more often, 喵睡眠 or IntervalTimer?

喵睡眠 ships an update every 3 weeks, and IntervalTimer every 10 days. Most recently, 喵睡眠 was updated on August 20, 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.*