# Calculation Machine vs ConvertCalc

The clearest difference is in-app purchases: Calculation Machine at none against ConvertCalc's 1. Calculation Machine also leads on ads (none vs shown) and iOS requirement (12.0 vs 17.0). On price and device support there is nothing between them.

Both are free to download. ConvertCalc sells 1 one-off in-app purchase. Calculation Machine asks for nothing beyond the download.

## The numbers

| Metric | Calculation Machine | ConvertCalc |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (2 ratings)](https://appshunter.io/ios/app/convertcalc/id6756512186/reviews)** |
| Number of ratings | — | **2** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | — | Every 8 days |
| Monetization | — | Free with in-app purchases |
| Size | 25 MB | 28 MB |
| Requires iOS | **12.0** | 17.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [RECEP OGUZHAN SENOGLU](https://appshunter.io/developer/1726731806) | [Michael Riehl](https://appshunter.io/developer/1861093934) |

## What reviewers say

### Calculation Machine

[App page](https://appshunter.io/ios/app/calculation-machine/id6476459597)

**Features:** macOS Compatibility

**In-app purchases:** none


### ConvertCalc

[App page](https://appshunter.io/ios/app/convertcalc/id6756512186)

This app combines a powerful calculator with an advanced unit converter, offering over 200 units across 19 categories. It allows for unified calculations and conversions in one step, with features like live currency exchange and date conversions. An optional pro version unlocks advanced customization and organizational tools.

**Highlights:** Unified calculation and conversion workflow, Over 200 units across 19 categories, Live currency conversion, Multiple calendar system conversions, Age calculator, Customizable themes and layouts, Offline functionality (excluding live currency)

**Features:** macOS Compatibility, Family Sharing

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| ConvertCalc Pro | $8.99 | one-time |


## Frequently asked questions

### Is Calculation Machine free?

Calculation Machine is free to download, with no in-app purchases.

### Is ConvertCalc free?

ConvertCalc is free to download, with in-app purchases available.

### Do Calculation Machine or ConvertCalc have ads?

ConvertCalc shows ads; Calculation Machine 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.*