Reviews (14)

Using it with Polar Verity sensor. Bought a year subscription because of supposed algorithm accuracy and future potential. But at this point I am starting to get a bit disappointed. The app could use a lot of improvements but it seems development is either really slow or halted. Not sure if I will renew. Sleep values also strangely seems to be 100% identical on many nights, which I find hard to believe..

Tracking seems to be quite accurate, but how would one know? The ml model seems to miss some of my awakenings. In any case, after three months using it daily, I am not gaining any new information. In retrospective I learned, the more time for sleep is available the better. Surprise. It might have been useful to correlate 'importan factors' with metrics in the UI.

I'm a paying user. It says it works with health connect but only to import data from health connect which is nonsensical because I want Sleep2 to track my sleep not use other sleep data in health connect. The value is in exporting the data not importing. This app is groundbraking accuracy wise but it's made by an incompetent app team

Health Connect integration within the app is poorly utilised. Lacks integration with other fitness applications. Features for non-subscribers are minimal. Subscription plan pricing isn't realistic. Has trouble opening after being closed on Android 15. Whilst sleep tracking, you don't get any notifications regarding sensor connectivity.

crashes lots on me new Samsung Galaxy 25

Original review: I love this app. It works with a (relatively) cheap, comfortable to wearninnbed and very accurate sensor and doesn't require a smartwatch. It's very simple to use and gives useful advice on how to improve your sleep. Edit: Sadly, without warning that the subscription was ending, from one night to the next, the app locked me out of all my recorded data and stopped functioning. This is really NOT OK. Devs: you need to warn the user! And what about my months of sleep data??

It's good as long as the sensor data gets read and processed. Every so often even with the sensor on, the data does not get read and no reason or even partial results are given, you lose the whole nights data.

1: expensive, 2: detecting sleep stages is good, 3: no way to verify how changes in sleep hygiene affect sleep, because there is no factor to sleep quality improvement detection, and there is no option to export data to make such detections manually. this is actually my biggest complaint. hope it will change in future. 4: has multiple major bugs. 5: App has high potential and I look forward for improvements

I really wanted to like this because of the accurate sleep stage tracking but found it wasn't a fit. I found wearing my Polar H10 while sleeping uncomfortable and wondered if just wearing the H10 was negatively impacting my sleep. Also, I found the graphs not as good as Garmins, and the price too high. I see they finally added min HR and HRV which are good steps. I would like to see better graphs, reduced costs, and more features. If they do that, maybe I would try again with armband sensor

I tried sleep2 because of the recommendation, but can't really say anything about it because all the good things are hidden behind a 25eur/month paywall. It's a lie that there is a free trial/version, because you pay for it with your data and get for that some very basic data and numbers without any individual recommendations (something for what this app was recommended for). 25 eur/month is actually a good thing - I might slip ant try it blindly for 9.99, but 25? Wake up from your fantasy.

What about English or some another in-app translation? I only see it in Deutch.

Failed to pair with Polar H10 so can't even try it. Also could not find a way to change language to English so apparently that option doesn't exist? Edit: pairing started working, waiting for English version now. Subscription seems expensive. At least 1 month full trial would be nice when English is available. H10 is great for everything else but would be nice to also have support for some sO2 sensors (parallel with H10) like Garmin watches or similar to enable low sO2 / sleep apnea detection.

Die App ist gut designed und liefert gute Ergebnisse. Die permanente Beantwortung von Fragen fand ich etwas nervig. Die Aufschlüsselung der Daten könnte etwas umfangreicher sein. Wenn ich zb schon einen Brustgurt trage, der den Herzschlag aufzeichnet, würde ich die Daten auch gern sehen. Alles in allem waren die Aufzeichnungen nicht viel anders als von meiner SmartWatch und der Preis ist hierfür einfach zu hoch als das ich für mich hier einen Mehrwert sehe.

I really like the concept and the extensive analysis and coaching. It would be nice if the app was in english and the price is a bit too high.