# Voluma App — Tank gauge: volume & mass

> Tank gauge: volume & mass (iPhone/iPad app by Valerie Otero.)

- Source: https://appshunter.io/ios/app/voluma-app/id6784131254 (this page in markdown: same URL + `.md`)
- Developer: [Valerie Otero](https://appshunter.io/developer/1848585337)
- Category: Utilities, Productivity
- Price: Free
- Age rating: 4+
- Requires: iOS 26.0 · 1 MB
- Languages: American English, French (France)
- Released: 2026-06-29
- Data updated: 2026-06-30
- User reviews in markdown: https://appshunter.io/ios/app/voluma-app/id6784131254/reviews.md

## What is Voluma App?

Voluma turns a simple dipstick height into volume, mass and fill percentage — for any container and any liquid.

No more charts or rough estimates: pick your tank's shape, enter its dimensions, and instantly read the exact volume at the measured height.

EVERY SHAPE
• Rectangular box
• Vertical and horizontal cylinder
• Box with a sloped bottom (different depths)
• Box with a sump (deeper bottom)
• Free form: define any tank with a height → volume measurement table

FOR EVERY LIQUID
Weight comes from density. Give each liquid a colour to spot your fuels at a glance.

CLEAR READING
• Volume, mass, percentage and remaining volume
• 2D and 3D cross-section faithful to the container's real shape (free camera)
• Reading sensitivity: "± 1 mm = ± X" at this level

TWO-WAY
Enter a dipstick height OR a known volume (a fill-up receipt, for instance): the other is computed automatically.

CALIBRATION
Tune readings to your real container from a known volume.

GAUGE CHART & EXPORT
Generate a height → volume chart at the step of your choice, printable as A4 PDF, or export it as CSV. Back up / restore your library as JSON.

YOUR UNITS
Volume in liters or gallons (US / imperial), mass in kilograms or pounds, height in cm or mm. Calculations stay exact internally (liters, kilograms).

ICLOUD
Your containers, liquids and plans sync across all your devices via your private iCloud.

100% PRIVATE
No personal data collected. No trackers, no ads, no third-party accounts. Everything stays on your device and in your private iCloud.

BILINGUAL
Interface and numbers fully in French or English.

Voluma is a reading aid with no legal metrological value: the reliability of the result depends on the accuracy of your measurements.


## Version history (last 1 release)

### 1.0 — 2026-06-29

No release notes.

## More apps by Valerie Otero

- [AirMultiChrono](https://appshunter.io/ios/app/airmultichrono/id6754513036)
- [SkyNotes](https://appshunter.io/ios/app/skynotes/id6755604004)
- [QuantumPass](https://appshunter.io/ios/app/quantumpass/id6755789663)
- [METAR•TAF Flow](https://appshunter.io/ios/app/metartaf-flow/id6757341500)
- [PlexiSafe](https://appshunter.io/ios/app/plexisafe/id6761058642)
- [Theta Resonance](https://appshunter.io/ios/app/theta-resonance/id6761909162)

All apps by Valerie Otero: https://appshunter.io/developer/1848585337

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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 2026-06-30.*