# sleep² sleeptracker & analysis vs WeightTracker

The clearest difference is iOS requirement: sleep² sleeptracker & analysis at 15.0 against WeightTracker's 18.6. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. sleep² sleeptracker & analysis sells 4 in-app purchases, starting at $9.99 per month and WeightTracker sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

sleep² sleeptracker & analysis ships an update every 2 weeks, WeightTracker every 3 weeks. The most recent releases landed on October 13, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | sleep² sleeptracker & analysis | WeightTracker |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.6 (37 ratings)](https://appshunter.io/ios/app/sleep-sleeptracker-and-analysis/id1629426238/reviews)** | — |
| Number of ratings | **37** | — |
| Positive reviews | 61.7% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Every 3 weeks |
| Monetization | Free with in-app purchases | — |
| Size | 110 MB | 24 MB |
| Requires iOS | **15.0** | 18.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [Nukkuaa](https://appshunter.io/developer/1629426240) | [Ethan Milton Wilde](https://appshunter.io/developer/1892997468) |

## What reviewers say

### sleep² sleeptracker & analysis

[App page](https://appshunter.io/ios/app/sleep-sleeptracker-and-analysis/id1629426238)

This app acts as a personal guide to better sleep, combining innovative sleep training with precise sleep tracking and analysis. It offers an EU-approved medical device program for acute sleep disorders like insomnia, providing personalized recommendations and sleep training based on your data.

**Highlights:** Sleep tracking and analysis, Sleep training programs, Personalized recommendations, Interactive chatbot, Data import (Polar sensor, Apple Health), Manual sleep diary entry

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| sleep² PRO | $9.99 | per month |
| sleep² PRO | $79.99 | per year |
| sleep² intensive program | $39.99 | one-time |
| sleep² intensive program | $99.99 | one-time |


### WeightTracker

[App page](https://appshunter.io/ios/app/weighttracker-lifetracker/id6789826994)

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| WeightTracker Pro | $0.99 | one-time |


## Frequently asked questions

### Is sleep² sleeptracker & analysis free?

sleep² sleeptracker & analysis is free to download, with in-app purchases available.

### Is WeightTracker free?

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

### Do sleep² sleeptracker & analysis or WeightTracker have ads?

Neither sleep² sleeptracker & analysis nor WeightTracker shows ads.

### Which is updated more often, sleep² sleeptracker & analysis or WeightTracker?

sleep² sleeptracker & analysis ships an update every 2 weeks, and WeightTracker every 3 weeks. Most recently, sleep² sleeptracker & analysis was updated on October 13, 2026 and WeightTracker on October 10, 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.*