# Porotherm Калькулятор vs Master Pro

The clearest difference is update cadence: Master Pro at every 2 months against Porotherm Калькулятор's every 19 months. Porotherm Калькулятор's advantage is device support (3 vs 1) and iOS requirement (11.0 vs 16.0). On price, 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.

Porotherm Калькулятор ships an update every 19 months, Master Pro every 2 months. The most recent releases landed on October 26, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | Porotherm Калькулятор | Master Pro |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 19 months | **Every 2 months** |
| Size | 60 MB | 75 MB |
| Requires iOS | **11.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [VINERBERGER KIRPICH, OOO](https://appshunter.io/developer/1453173036) | [Abylgaziev Aidarbek Azimbaevich, IP](https://appshunter.io/developer/1694459094) |

## What reviewers say

### Porotherm Калькулятор

[App page](https://appshunter.io/ios/app/porotherm/id1272058478)

**Features:** macOS Compatibility

**In-app purchases:** none


### Master Pro

[App page](https://appshunter.io/ios/app/master-pro/id6550915864)

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

**In-app purchases:** none


## Frequently asked questions

### Is Porotherm Калькулятор free?

Porotherm Калькулятор is free to download, with no in-app purchases.

### Is Master Pro free?

Master Pro is free to download, with no in-app purchases.

### Do Porotherm Калькулятор or Master Pro have ads?

Neither Porotherm Калькулятор nor Master Pro shows ads.

### Which is updated more often, Porotherm Калькулятор or Master Pro?

Porotherm Калькулятор ships an update every 19 months, and Master Pro every 2 months. Most recently, Porotherm Калькулятор was updated on October 26, 2026 and Master Pro on October 30, 2026.

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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.*