# sleep² sleeptracker & analysis vs Yudemon HRV

The clearest difference is rating: Yudemon HRV at 4.5 against sleep² sleeptracker & analysis's 3.6. Yudemon HRV also leads on update cadence (every 2 days vs every 2 weeks) and review sentiment (92% vs 62%). On price, ratings volume, 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 Yudemon HRV sells 4 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

Yudemon HRV holds the better App Store score, 4.5 against 3.6. Both are backed by a comparable volume of ratings — 37 and 13 respectively. Written reviews point the same way: 62% of sleep² sleeptracker & analysis's written reviews are positive against 92% of Yudemon HRV's.

sleep² sleeptracker & analysis ships an update every 2 weeks, Yudemon HRV every 2 days. The most recent releases landed on October 17, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | sleep² sleeptracker & analysis | Yudemon HRV |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.6 (37 ratings)](https://appshunter.io/ios/app/sleep-sleeptracker-and-analysis/id1629426238/reviews) | **[4.5 (13 ratings)](https://appshunter.io/ios/app/yudemon-hrv/id1629852639/reviews)** |
| Number of ratings | **37** | 13 |
| Positive reviews | 61.7% of reviews | **91.7% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 2 weeks | **Every 2 days** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 110 MB | 163 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Nukkuaa](https://appshunter.io/developer/1629426240) | [Yudemon LLC](https://appshunter.io/developer/1629852641) |

## 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 |


### Yudemon HRV

[App page](https://appshunter.io/ios/app/yudemon-hrv/id1629852639)

Enhance stress resilience and self-regulation with this visual and sonic tool for resonance breathing and HRV biofeedback. Connect a heart rate monitor for advanced analytics and personalized training journeys. Enjoy dynamic visuals and custom soundscapes designed to optimize your practice.

**Highlights:** Resonance breathing timer, HRV biofeedback training, ECG heart rate monitor integration, Journey Mode for optimal breathing rate, Customizable visuals and soundscapes, Heartwork generative art based on data

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Yudemon Pro (Monthly) | $2.99 | per month |
| Yudemon Pro (Monthly) | $4.99 | per month |
| Yudemon Pro (Yearly) | $19.99 | per year |
| Yudemon Pro (Yearly) | $29.99 | per year |


## Frequently asked questions

### Is sleep² sleeptracker & analysis free?

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

### Is Yudemon HRV free?

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

### Which has better reviews, sleep² sleeptracker & analysis or Yudemon HRV?

Yudemon HRV is rated higher. sleep² sleeptracker & analysis averages 3.6 out of 5 from 37 ratings, while Yudemon HRV averages 4.5 from 13 ratings.

### Do sleep² sleeptracker & analysis or Yudemon HRV have ads?

Neither sleep² sleeptracker & analysis nor Yudemon HRV shows ads.

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

sleep² sleeptracker & analysis ships an update every 2 weeks, and Yudemon HRV every 2 days. Most recently, sleep² sleeptracker & analysis was updated on October 17, 2026 and Yudemon HRV on October 13, 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.*