# Nitelink2 Sleep Tracker — user reviews

> 9 indexed App Store user reviews of Nitelink2 Sleep Tracker by Nitetronic Hong Kong Limited, rated 2.09/5 from 11 ratings.

- Source: https://appshunter.io/ios/app/nitelink2-sleep-tracker/id1089116122/reviews
- App overview in markdown: https://appshunter.io/ios/app/nitelink2-sleep-tracker/id1089116122.md
- Rating breakdown: 5★ 2 · 4★ 1 · 3★ 0 · 2★ 1 · 1★ 7

## Most critical reviews (9 lowest-rated)

### 1/5 — Product supposedly works BUT

*2018-04-15, version 3.0.0*

Product supposedly works but wouldn’t be able to tell since there is no connection with the app. App worked for two days after receiving the pillow and then quit. Still will not connect after a week. I have reloaded the app twice. Still nothing. At this point no idea if the pillow even works so Back It Must Go. Pretty bad customer service as well. Have reached out multiple times and get nothing but short emails with limited help. Really disappointed

### 1/5 — Honestly I think this company is dead

*2018-01-23, version 3.0.0*

Tried to return the product. Got no response to repeated email, phone calls, and social media outreach. Avoid this scam.

### 1/5 — Don't see any data

*2017-09-19, version 2.9.5*

No matter what I do I cannot get it to show the data from the pillow. I'm guessing the most recent patch or bug fix created this bug. I wouldn't know because I got my pillow on September 11 and have yet to see data come through. I'll update my rating when I can see data for my pillow.

### 1/5 — 1 star for latest patch

*2017-09-13, version 2.9.5*

The product itself works great and the app tracks a lot of interesting information. Unfortunately after the latest patch I have been having a lot of trouble syncing the pillow to the app in order to download the last night's data. Hopefully this will be resolved in the next patch.

### 1/5 — Crashing during sync

*2017-07-25, version 2.9.1*

Please update app for new IOS. Crashes during sync process now every time.

### 1/5 — App crashes every time it attempts to sync.

*2017-07-22, version 2.9.1*

The app used to sync. Now every time it tries it crashes. It started with the latest version. I uninstalled and installed again and it didn't fix it.

### 2/5 — Cannot find self test

*2018-01-07, version 2.9.9*

At least In the latest version I couldn’t find self test function

### 4/5 — App works well

*2017-11-23, version 2.9.7*

I wish the synchronization was faster, otherwise good app.  Developers-please note the short form of Wednesday is Wed, not Wen for the daily view.

### 5/5 — Great software especially with Nitronic pillow

*2023-07-10*

Entirely satisfied with the software and the Nitronic pillow.  They work as described.  Has made a big difference in my sleep!   Thank you.

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-06-10.*