# Calcohol vs Pervak

The clearest difference is in-app purchases: Pervak at none against Calcohol's 1. Calcohol's advantage is update cadence (every 2 months vs every 6 months) and iOS requirement (12.0 vs 15.0). On price, ads and device support there is nothing between them.

Both are free to download. Calcohol sells 1 one-off in-app purchase. Pervak asks for nothing beyond the download.

Calcohol ships an update every 2 months, Pervak every 6 months. The most recent releases landed on September 22, 2026 and September 20, 2026 respectively.

## The numbers

| Metric | Calcohol | Pervak |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (190 ratings)](https://appshunter.io/ios/app/calcohol/id1333244434/reviews)** | — |
| Number of ratings | **190** | — |
| Positive reviews | 62.5% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 6 months |
| Monetization | Free with in-app purchases | — |
| Size | 20 MB | 22 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 17+ | 17+ |
| Developer | [Denis Orlov](https://appshunter.io/developer/1333244433) | [Konstantin Barbin](https://appshunter.io/developer/1679629968) |

## What reviewers say

### Calcohol

[App page](https://appshunter.io/ios/app/calcohol/id1333244434)

This app provides a comprehensive suite of tools for liquor makers, offering calculations for dilution, contraction, mixing, heating, boiling, and distillation. It also includes a notebook for recipes and iCloud sync, with support for various measurement systems.

**Highlights:** Alcohol strength calculations (dilution, contraction), Mixture calculations by volume and mass, Heating and temperature management tools, Boiling point and distillation calculations, Mash and spirit making calculators, Notebook with iCloud sync

**Features:** macOS Compatibility, Family Sharing

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Full Version | $0.99 | one-time |


### Pervak

[App page](https://appshunter.io/ios/app/pervak/id6446907490)

**In-app purchases:** none


## Frequently asked questions

### Is Calcohol free?

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

### Is Pervak free?

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

### Do Calcohol or Pervak have ads?

Neither Calcohol nor Pervak shows ads.

### Which is updated more often, Calcohol or Pervak?

Calcohol ships an update every 2 months, and Pervak every 6 months. Most recently, Calcohol was updated on September 22, 2026 and Pervak on September 20, 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.*