# Tank Volume Calculation vs Fill Safe

The clearest difference is in-app purchases: Fill Safe at none against Tank Volume Calculation's 1. Tank Volume Calculation's advantage is ads (none vs shown) and iOS requirement (12.0 vs 15.1). On price and device support there is nothing between them.

Both are free to download. Tank Volume Calculation sells 1 one-off in-app purchase. Fill Safe asks for nothing beyond the download.

## The numbers

| Metric | Tank Volume Calculation | Fill Safe |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.0 (5 ratings)](https://appshunter.io/ios/app/tank-volume-calculation/id6740401902/reviews)** | — |
| Number of ratings | **5** | — |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | — | Every 4 days |
| Monetization | Free with in-app purchases | — |
| Size | 65 MB | 49 MB |
| Requires iOS | **12.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Ashvin Kevadiya](https://appshunter.io/developer/1756324971) | [Benjamin Lee](https://appshunter.io/developer/1867644803) |

## What reviewers say

### Tank Volume Calculation

[App page](https://appshunter.io/ios/app/tank-volume-calculation/id6740401902)

Calculate the volume and weight of liquid in various tank shapes. Convert between units and save your results. Optimized for efficiency and ease of use.

**Highlights:** Volume calculations for various tank shapes, Liquid weight calculation with density, Built-in volume unit converter, Metric and imperial unit support, Save and share calculation results, Optimized for tablets and mobile

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Lifetime | $3.99 | one-time |


### Fill Safe

[App page](https://appshunter.io/ios/app/fill-safe/id6757569781)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Tank Volume Calculation free?

Tank Volume Calculation is free to download, with in-app purchases available.

### Is Fill Safe free?

Fill Safe is free to download, with no in-app purchases.

### Do Tank Volume Calculation or Fill Safe have ads?

Fill Safe shows ads; Tank Volume Calculation does not.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*