sleep² sleeptracker & analysis

sleep² sleeptracker & analysis

Sleep tracker & Sleep Analysis

34 ratings
52 reviews
Free
In-App Purchases

Details

  • Released
  • Updated
  • October 4, 2023
  • July 6, 2026
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About

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.

Sleep tracking and analysis
Sleep training programs
Personalized recommendations
Interactive chatbot
Data import (Polar sensor, Apple Health)
Manual sleep diary entry
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What's New in sleep² sleeptracker & analysis

3.6.18

July 6, 2026

Minor improvements and bug fixes

Subscription plans

sleep² PRO

All features, can be canceled yearly

$79.991 Year
Price Updates
July 25, 2026$79.99
June 21, 2025$149.99
December 19, 2024$99.99
July 11, 2024$199.99
How to cancel sleep² sleeptracker & analysis subscription ⁉️
5

In-App Purchases

$99.99

sleep² intensive program

Specialized program, 12 weeks available

User reviews

Worth The Price

I used both free version and Paid version
I would absolutely recommend the app because the Data presentation and The accuracy of the metrics is extremely good and It actually helped me become better at my sleep anxiety and sleep apnea
The support is actually very good and they are easy to contact if you have any query or any question regarding the app
I would absolutely recommend this app
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Will Not Connect

Trying to connect with the Polar H10 is impossible even though my phone is connected and other apps don’t have issues connecting. Waste of time!

Response from developer

We’re very sorry for the frustration - this is definitely not the experience we want you to have. With the Polar H10, it is important that the sensor is not already paired or actively used by another app, as this can block sleep² from accessing it! Please try the following sequence: 1.) Ppen Polar Flow once, check for firmware updates and reset the sensor to factory settings. 2.) Then fully close Polar Flow and any other apps that may use the sensor. 3.) disconnect/forget the H10 in your phone’s Bluetooth settings 4.) After that, please connect the H10 only directly inside the sleep² app (not through Bluetooth settings first). If it still does not work, please contact us at hello@sleep2.com. We’ll gladly help you personally and hopefully change your impression of the app.

Connection issues

Could be a good app but I wouldn’t know. Connects to my polar H10 at night and I start sleep then when I wake up it can’t end my sleep or connect to my strap. Makes you delete the data.

Response from developer

Hello Pat9710! We’re very sorry for the frustration-especially when the recording starts correctly at night but cannot be completed in the morning. With the Polar H10, this can sometimes happen if the chest strap shifts during sleep or loses skin contact, resulting in insufficient signal quality for a reliable analysis. Does this happen every night or only occasionally? And do you see a specific error message when trying to end the recording or read out the data? Please contact us at hello@sleep2.com with these details. We’d really like to review your case individually and find a practical solution for you! If we can get this working reliably, we’d of course be very happy if your impression and your rating changes accordingly.

Accurate stats

Sleep stats

Response from developer

Hi JohnJohn! Thanks so much for your trust in our measurement accuracy – we really appreciate it! 😊 We're continuously working on refining the user experience and your feedback is very valuable in that process. If you’d like to share specific suggestions, feel free to reach out to us at hello@sleep2.com .... we’d love to hear from you!

Sleep scientists, not software developers

The app keeps surprising me with new bugs every day - losing my sleep data, not working well offline and a clumsy data entry UX. The sleep science might be solid but the app development skills are lacking. Hard to justify $20 per month for such a frustrating experience

FAQ

What does the sleep² app do?

The sleep² app functions as a personal sleep guide, offering both innovative sleep training and precise sleep tracking. It provides valuable insights into your sleep patterns and helps you improve sleep quality through scientifically based methods and personalized recommendations.

What are the key features of sleep²?

Key features include detailed sleep analysis, personalized sleep training programs, an interactive chatbot to assist with sleep, and the ability to analyze sleep using a Polar sensor or import data via Apple Health. You can also manually enter sleep data into a sleep diary.

How much does sleep² cost?

The app offers a free download with basic functions. Full features, including precise sleep analysis and personalized programs, are available with a subscription purchase.

Is sleep² compatible with my device?

The app description mentions integration with Polar sensors and Apple Health, suggesting compatibility with devices that support these integrations. For specific device compatibility, it's recommended to check the app store listing.

Who is the sleep² Intensive Program designed for?

The sleep² Intensive Program is an EU-approved medical device specifically designed for individuals with acute sleep disorders, such as insomnia. It aims to help users improve their sleep quality through systematic and gradual sleep tracking and training.