# Silverson Conversion Tools vs Tank Volume Calculator

The clearest difference is rating: Silverson Conversion Tools at 4.7 against Tank Volume Calculator's 1.0. Silverson Conversion Tools also leads on ratings volume (3 vs 1) and iOS requirement (8.0 vs 15.0). On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Silverson Conversion Tools holds the better App Store score, 4.7 against 1.0. Both are backed by a comparable volume of ratings — 3 and 1 respectively.

Silverson Conversion Tools ships an update every 6 months, Tank Volume Calculator every 10 months. The most recent releases landed on October 4, 2026 and September 20, 2026 respectively.

## The numbers

| Metric | Silverson Conversion Tools | Tank Volume Calculator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (3 ratings)](https://appshunter.io/ios/app/silverson-conversion-tools/id626189811/reviews)** | [1.0 (1 ratings)](https://appshunter.io/ios/app/tank-volume-calculator/id6727014725/reviews) |
| Number of ratings | **3** | 1 |
| Positive reviews | — | 75.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 6 months** | Every 10 months |
| Monetization | Free | Free |
| Size | 9 MB | 25 MB |
| Requires iOS | **8.0** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Silverson Machines Limited](https://appshunter.io/developer/626189814) | [Bestami Oktay Akpinar](https://appshunter.io/developer/1771205471) |

## What reviewers say

### Silverson Conversion Tools

[App page](https://appshunter.io/ios/app/silverson-conversion-tools/id626189811)

This app provides engineers and operations personnel with tools to calculate the volume of vertical tanks of various shapes and top/bottom styles. It also includes multiple conversion tools for common measurements and a browser for product information.

**Highlights:** Vertical tank volume calculation, Multiple tank shapes and top/bottom styles, Unit conversion tools, Email/Share calculation results, Integrated product browser

**Features:** macOS Compatibility

**In-app purchases:** none


### Tank Volume Calculator

[App page](https://appshunter.io/ios/app/tank-volume-calculator/id6727014725)

Easily calculate the volume and liquid levels for a wide variety of tank shapes. Supports multiple units and offers offline functionality for convenient use in industries or for personal projects.

**Highlights:** Calculate volume for vertical, horizontal, conical, elliptical, rectangular, and aquarium tanks, Supports metric and imperial units (mm, cm, inches, feet, liters, gallons), Built-in volume converter, Save and track calculations, Offline functionality

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Silverson Conversion Tools free?

Silverson Conversion Tools is free to download, with no in-app purchases.

### Is Tank Volume Calculator free?

Tank Volume Calculator is free to download, with no in-app purchases.

### Which has better reviews, Silverson Conversion Tools or Tank Volume Calculator?

Silverson Conversion Tools is rated higher. Silverson Conversion Tools averages 4.7 out of 5 from 3 ratings, while Tank Volume Calculator averages 1.0 from 1 ratings.

### Do Silverson Conversion Tools or Tank Volume Calculator have ads?

Neither Silverson Conversion Tools nor Tank Volume Calculator shows ads.

### Which is updated more often, Silverson Conversion Tools or Tank Volume Calculator?

Silverson Conversion Tools ships an update every 6 months, and Tank Volume Calculator every 10 months. Most recently, Silverson Conversion Tools was updated on October 4, 2026 and Tank Volume Calculator on September 20, 2026.

---

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