# Crystal Flash Tank Monitoring — user reviews

> 4 indexed App Store user reviews of Crystal Flash Tank Monitoring by Reseau sans fil Otodata Inc, rated 1.25/5 from 4 ratings.

- Source: https://appshunter.io/ios/app/crystal-flash-tank-monitoring/id1459689879/reviews
- App overview in markdown: https://appshunter.io/ios/app/crystal-flash-tank-monitoring/id1459689879.md
- Rating breakdown: 5★ 0 · 4★ 0 · 3★ 0 · 2★ 1 · 1★ 3

## Most critical reviews (4 lowest-rated)

### 1/5 — Inaccurate reading

*2026-01-01, version 4.0.34*

Tank just filled to 80%, app says 52%
Inaccurate reading after many attempts

### 1/5 — Not completely compatible with Apple devices

*2024-05-16, version 2.4.1*

App works on my phone but won’t let me open on iPad.  Web site is wonky on my iPad as well.  Menu won’t stay on screen long enough to activate anything.  Web site does work with my pc.

### 1/5 — No password option

*2020-08-10, version 1.11.2*

Doesn’t give me the ability to put in a password, only username.

### 2/5 — Request Returned Invalid Code Error

*2024-01-29, version 2.4.1*

Getting a “Request Returned Invalid Code Error” when trying to sign in.

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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 2026-06-01.*