# Lumos - Smart Sleep Mask — user reviews

> 2 indexed App Store user reviews of Lumos by LumosTech, Inc., rated 4.00/5 from 5 ratings.

- Source: https://appshunter.io/ios/app/lumos-smart-sleep-mask/id1292895087/reviews
- App overview in markdown: https://appshunter.io/ios/app/lumos-smart-sleep-mask/id1292895087.md
- Rating breakdown: 5★ 3 · 4★ 1 · 3★ 0 · 2★ 0 · 1★ 1

## Most critical reviews (2 lowest-rated)

### 1/5 — Poor Support

*2022-05-11, version 1.0.1*

As an early adopter, I ordered my sleep mask in 2016, and waited nearly two years to receive it, one year later than it was expected to be available. Since then, there was a period of well over a year where the app was crashing, sometimes without it fully opening. That was a time when I was frequently traveling internationally, so the mask was useless to me. The app updates were rare. It has been updated once in the past two years. To this day, the website is effectively abandoned. The blog was last updated two and a half years ago. The technology may be there, but without a functioning company behind it you are on your own. I regret my purchase.

### 5/5 — Skeptical at first

*2022-06-11, version 1.0.2*

Now that I’m traveling more I tried this sleep mask and a was blown away by how it totally reduced and I dare say eliminated any jet lag. I ad a few questions in the beginning but the in-app chat feature was quick and helpful. Totally recommend.

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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.*