# Good Sleep vs REM Sleep Tracker

The clearest difference is review sentiment: Good Sleep at 56% against REM Sleep Tracker's 0%. Good Sleep also leads on rating (4.6 vs 4.2) and device support (3 vs 1). On price, ratings volume, update cadence and ads there is nothing between them.

Both are free to download. Good Sleep sells 1 in-app purchase, starting at $4.99 per month and REM Sleep Tracker sells 2 in-app purchases, starting at $9.99 per year. Whichever you choose, the download price is not the number that matters.

Good Sleep holds the better App Store score, 4.6 against 4.2. Both are backed by a comparable volume of ratings — 86 and 49 respectively. Written reviews point the same way: 56% of Good Sleep's written reviews are positive against 0% of REM Sleep Tracker's.

Good Sleep ships an update fortnightly, REM Sleep Tracker every 2 weeks. The most recent releases landed on October 21, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Good Sleep | REM Sleep Tracker |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (86 ratings)](https://appshunter.io/ios/app/good-sleep-auto-sleep-tracker/id1499797465/reviews)** | [4.2 (49 ratings)](https://appshunter.io/ios/app/rem-sleep-tracker/id6446677275/reviews) |
| Number of ratings | **86** | 49 |
| Positive reviews | **55.6% of reviews** | 0.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Fortnightly | **Every 2 weeks** |
| Monetization | Free with in-app purchases | Freemium |
| Size | 74 MB | 25 MB |
| Requires iOS | **13.2** | 16.0 |
| Devices | **iPhone, iPod, Apple Watch** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [WELLBEINE TECHNOLOGIES INC](https://appshunter.io/developer/1529157912) | [Nicola Eusebi](https://appshunter.io/developer/737311863) |

## What reviewers say

### Good Sleep

[App page](https://appshunter.io/ios/app/good-sleep-auto-sleep-tracker/id1499797465)

This app automatically tracks your sleep using an Apple Watch, analyzing your patterns with AI to provide a sleep score and detailed diagnostics. It features a smart alarm designed to wake you gently from deep sleep, helping you feel refreshed.

**Highlights:** Automatic sleep tracking, AI-powered sleep analysis, Sleep Score with diagnostics, Smart alarm clock, Health app integration, Sleep history view

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 1-Month Subscription | $4.99 | per month |


### REM Sleep Tracker

[App page](https://appshunter.io/ios/app/rem-sleep-tracker/id6446677275)

This app analyzes Apple Watch sensor data to provide a sleep quality score. It offers detailed insights into sleep stages, heart rate, and weekly trends, helping users understand and improve their rest habits.

**Highlights:** Sleep quality scoring, Detailed sleep stage analysis (light, deep, REM), Heart rate monitoring, Weekly trend tracking, Sleep bank concept for habit analysis, Apple Health integration

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Sleep Score Premium Yearly | $9.99 | per year |
| Sleep Score Premium Yearly | $29.99 | per year |


## Frequently asked questions

### Is Good Sleep free?

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

### Is REM Sleep Tracker free?

REM Sleep Tracker is free to download, with in-app purchases available.

### Which has better reviews, Good Sleep or REM Sleep Tracker?

Good Sleep is rated higher. Good Sleep averages 4.6 out of 5 from 86 ratings, while REM Sleep Tracker averages 4.2 from 49 ratings.

### Do Good Sleep or REM Sleep Tracker have ads?

Neither Good Sleep nor REM Sleep Tracker shows ads.

### Which is updated more often, Good Sleep or REM Sleep Tracker?

Good Sleep ships an update fortnightly, and REM Sleep Tracker every 2 weeks. Most recently, Good Sleep was updated on October 21, 2026 and REM Sleep Tracker on October 24, 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.*