# zcalcu vs Krypta ECC

The clearest difference is price: Krypta ECC at Free against zcalcu's $2.99. Krypta ECC also leads on update cadence (monthly vs every 11 months). zcalcu's advantage is device support (3 vs 1) and iOS requirement (12.0 vs 16.0). On ads and in-app purchases there is nothing between them.

Krypta ECC is free to download; zcalcu costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

zcalcu ships an update every 11 months, Krypta ECC monthly. The most recent releases landed on October 3, 2026 and October 18, 2026 respectively.

## The numbers

| Metric | zcalcu | Krypta ECC |
| --- | --- | --- |
| Price | $2.99 | **Free** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 11 months | **Monthly** |
| Size | 49 MB | 66 MB |
| Requires iOS | **12.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 17+ |
| Developer | [Muhammad Ziyad Al Maududi](https://appshunter.io/developer/1721687621) | [Connexa GmbH (CH)](https://appshunter.io/developer/1721968560) |

## What reviewers say

### zcalcu

[App page](https://appshunter.io/ios/app/zcalcu-chat-and-calculator/id6480375934)

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

**In-app purchases:** none


### Krypta ECC

[App page](https://appshunter.io/ios/app/krypta-ecc/id6754332196)

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

**In-app purchases:** none


## Frequently asked questions

### Is zcalcu free?

zcalcu costs $2.99, with no in-app purchases.

### Is Krypta ECC free?

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

### Do zcalcu or Krypta ECC have ads?

Neither zcalcu nor Krypta ECC shows ads.

### Which is updated more often, zcalcu or Krypta ECC?

zcalcu ships an update every 11 months, and Krypta ECC monthly. Most recently, zcalcu was updated on October 3, 2026 and Krypta ECC on October 18, 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.*