# Crystal Flash Tank Monitoring

> Real-time tank level monitoring and management app with alerts and supplier contact. (iPhone/iPad app by Reseau sans fil Otodata Inc.)

- Source: https://appshunter.io/ios/app/crystal-flash-tank-monitoring/id1459689879 (this page in markdown: same URL + `.md`)
- Developer: [Reseau sans fil Otodata Inc](https://appshunter.io/developer/1022440536)
- Category: Utilities, Lifestyle
- Price: Free
- Rating: 1.25/5 from 4 App Store ratings · 4 written reviews indexed
- Age rating: 4+
- Requires: iOS 15.3 · 68 MB
- Languages: English
- Released: 2019-10-01
- Data updated: 2026-06-01
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/crystal-flash-tank-monitoring/id1459689879/reviews.md

## What is Crystal Flash Tank Monitoring?

Accurately monitor your tank level!

With  Crystal Flash, trying to guess tank levels is now a thing of the past. Get accurate, real-time readings of all your tanks instantly on your smartphone.

Key characteristics of the Crystal Flash app:

1.    Accurately track the level of your tank in real-time from anywhere.
2.    Consult your usage for the past 3 months in the blink of an eye.
3.    Receive instant notifications on your smartphone when your tank reaches configurable and pre-determined levels.
4.    With just one tap, contact your fuel supplier to request service or a refill.
5.    Monitor and manage multiple tanks from one account.
6.    Share access to data with up to 3 users.

Important: The Crystal Flash app requires the installation of the Crystal Flash telemetry unit to function.


INTERESTED?
Contact your fuel supplier Crystal Flash today and ask for your activation code!

## Key features

- Real-time tank level tracking
- 3-month usage history
- Configurable low-level alerts
- One-tap fuel supplier contact
- Multi-tank management
- Share data with up to 3 users

## Recent user reviews (4 of 4)

All indexed reviews: https://appshunter.io/ios/app/crystal-flash-tank-monitoring/id1459689879/reviews.md

### 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.

### 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.

### 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.

## Frequently asked questions about Crystal Flash Tank Monitoring

### Does Crystal Flash have ads?

No, Crystal Flash does not contain advertisements. It is a free application designed for utility purposes.

### What is the rating for Crystal Flash?

Crystal Flash has a rating of 1.3 stars based on 4 user ratings. This indicates a mixed reception among its current user base.

### How often is Crystal Flash updated?

The latest version of Crystal Flash is 4.0.34, last updated on May 28, 2025. This suggests a commitment to ongoing development and maintenance.

### What devices support Crystal Flash?

Crystal Flash is supported on iPhone, iPad, and iPod devices. It is designed for iOS users who need tank monitoring capabilities.

### What is the age rating for Crystal Flash?

Crystal Flash has an age rating of 4+, making it suitable for a wide range of users. This rating suggests content is generally appropriate for younger audiences.

### How do I set up Crystal Flash?

Crystal Flash requires the installation of the Crystal Flash telemetry unit to function. You will need to contact your fuel supplier for an activation code to begin using the app.

### Can I monitor multiple tanks with Crystal Flash?

Yes, Crystal Flash allows you to monitor and manage multiple tanks from a single account. This feature is useful for users with more than one tank to keep track of.

### Can I share my tank data with others using Crystal Flash?

Yes, you can share access to your tank data with up to 3 other users. This enables collaboration and shared oversight of tank levels.

## Version history (last 3 releases)

### 4.0.34 — 2025-05-28

App name updated

### 2.4.1 — 2021-11-10

The Crystal Flash app finally got a facelift. 
Meet the fresher, more youthful Crystal Flash 2.0.

A brand new look and feel 

1.     Updated “My Tanks” view to offer more details at a glance;
2.     A view where users can choose a nickname for their tanks to help differentiate them after inputting an Activation Code;
3.     Added weather information on the “Tank” view screen so users can see current conditions at their tank’s location;
4.     New tank shapes for oil, water, etc… (to be activated soon.)

Improved user-experience 

1.     Helpful popups for new users in “My Tanks” and in “Add Tank" views;
2.     Show/Hide for all password fields;
3.     When generating a new Authorization Code, users will be able to share the code directly from the app.
4.     Issues related to the login screen on iPad have been fixed.
5.     New tank shapes are now displayed to better reflect the product.

### 1.11.2 — 2019-10-01

No release notes.

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## More apps by Reseau sans fil Otodata Inc

- [Nee-Vo](https://appshunter.io/ios/app/nee-vo/id1108454345)
- [Caywood Tank](https://appshunter.io/ios/app/caywood-tank/id1491553530)
- [Nee-Vo Tech](https://appshunter.io/ios/app/nee-vo-tech/id1506244108)
- [FerrellFill](https://appshunter.io/ios/app/ferrellfill/id1508219899)
- [Paraco](https://appshunter.io/ios/app/paraco/id6443942291)

All apps by Reseau sans fil Otodata Inc: https://appshunter.io/developer/1022440536

## Related topics

[crystal flash tank monitoring](https://appshunter.io/ios/topics/crystal-flash-tank-monitoring) · [crystal flash](https://appshunter.io/ios/topics/crystal-flash)

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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.*