# Tank Calibration

> Tank Calibration (iPhone/iPad app by JR Spoelstra.)

- Source: https://appshunter.io/ios/app/tank-calibration/id6779744259 (this page in markdown: same URL + `.md`)
- Developer: [JR Spoelstra](https://appshunter.io/developer/1251585532)
- Category: Utilities
- Price: Free
- Age rating: 4+
- Requires: iOS 26.0 · 4 MB
- Languages: English
- Released: 2026-10-05
- Data updated: 2026-10-09

## What is Tank Calibration?

TankCal helps you build and check tank calibration data for sender-based measurement systems.

Enter your tank's maximum centimeter and litre values, choose an Ohm step interval, and fill a clear calibration table with measured centimeter and litre points. TankCal calculates percentages automatically and plots the data as live scatter charts, making it easier to spot irregular entries before you save or share a calibration file.

The app supports multiple tank profiles, adjustable step counts, quick Ohm-column filling, calibration notes, and JSON import/export for moving calibration data between devices or keeping project records.

TankCal is built for technicians, boat owners, builders, and anyone who needs a straightforward way to organize custom tank readings.

## Is Tank Calibration safe?

Not enough ratings yet to assess Tank Calibration.

## Is Tank Calibration legit?

Tank Calibration has limited verification signals. The AppsHunter Legitimacy Score for Tank Calibration is 48 out of 100 points across 7 verification signals from App Store and developer data.


## Version history (last 1 release)

### 2.0 — 2026-10-05

No release notes.

## More apps by JR Spoelstra

- [RFLossIOS](https://appshunter.io/ios/app/rflossios/id6762507916)
- [WindDir](https://appshunter.io/ios/app/winddir/id6781230011)

All apps by JR Spoelstra: https://appshunter.io/developer/1251585532

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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 2026-10-09.*