# Wavelength Calculator — user reviews

> 2 indexed App Store user reviews of Wavelength Calculator by Nitrio, rated 2.60/5 from 5 ratings.

- Source: https://appshunter.io/ios/app/wavelength-calculator/id1413070800/reviews
- App overview in markdown: https://appshunter.io/ios/app/wavelength-calculator/id1413070800.md
- Rating breakdown: 5★ 2 · 4★ 0 · 3★ 0 · 2★ 0 · 1★ 3

## Most critical reviews (2 lowest-rated)

### 1/5 — I want my money back

*2024-08-30*

I’m upset to have spent the 3 bucks on this app. Doesn’t compute anything like what anybody might use it for. I’m using it for astronomy, the smallest unit of measurement is a millimeter, despite the fact that most of my work requires the answer in nanometers. And I could do that computation separately, and it’d be fine. But the app doesn’t compute any decimals.

### 1/5 — Crashes every time I try to change a value on my iPhone X

*2018-11-13*

Can’t use this because it keeps crashing as already stated. 
Wish also it had more choice for velocity and a custom velocity can be made.

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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 2026-08-01.*