# Tank Volume Calculation vs Assistela Client

The clearest difference is in-app purchases: Assistela Client at none against Tank Volume Calculation's 1. Tank Volume Calculation's advantage is iOS requirement (12.0 vs 17.0). On price, ads and device support there is nothing between them.

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

## The numbers

| Metric | Tank Volume Calculation | Assistela Client |
| --- | --- | --- |
| 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 | No |
| Update frequency | — | Weekly |
| Monetization | Free with in-app purchases | — |
| Size | 65 MB | 46 MB |
| Requires iOS | **12.0** | 17.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [Ashvin Kevadiya](https://appshunter.io/developer/1756324971) | [Petr Kucera](https://appshunter.io/developer/1436863222) |

## 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 |


### Assistela Client

[App page](https://appshunter.io/ios/app/assistela-client/id6782631912)

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**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 Assistela Client free?

Assistela Client is free to download, with no in-app purchases.

### Do Tank Volume Calculation or Assistela Client have ads?

Neither Tank Volume Calculation nor Assistela Client shows ads.

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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.*