# 2 vs Kalkulko

The clearest difference is in-app purchases: Kalkulko at none against 2's 1. 2's advantage is iOS requirement (13.0 vs 18.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. 2 sells 1 one-off in-app purchase. Kalkulko asks for nothing beyond the download.

2 ships an update every 3 weeks, Kalkulko every 2 weeks. The most recent releases landed on October 26, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | 2 | Kalkulko |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 2 weeks** |
| Size | 49 MB | 20 MB |
| Requires iOS | **13.0** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [creasoft.de](https://appshunter.io/developer/537049278) | [Yellow Bench s.r.o.](https://appshunter.io/developer/1838980900) |

## What reviewers say

### 2

[App page](https://appshunter.io/ios/app/2-1-lite/id934877467)

**Features:** macOS Compatibility, Family Sharing

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| unlock full version | $0.99 | one-time |


### Kalkulko

[App page](https://appshunter.io/ios/app/kalkulko/id6777156310)

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

**In-app purchases:** none


## Frequently asked questions

### Is 2 free?

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

### Is Kalkulko free?

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

### Do 2 or Kalkulko have ads?

Neither 2 nor Kalkulko shows ads.

### Which is updated more often, 2 or Kalkulko?

2 ships an update every 3 weeks, and Kalkulko every 2 weeks. Most recently, 2 was updated on October 26, 2026 and Kalkulko on October 31, 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.*