# Instytut Kryptografii vs INDSPHINX 4.0

The clearest difference is update cadence: Instytut Kryptografii at fortnightly against INDSPHINX 4.0's every 10 months. INDSPHINX 4.0's advantage is iOS requirement (12.0 vs 15.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Instytut Kryptografii ships an update fortnightly, INDSPHINX 4.0 every 10 months. The most recent releases landed on October 5, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | Instytut Kryptografii | INDSPHINX 4.0 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Fortnightly** | Every 10 months |
| Size | 6 MB | 23 MB |
| Requires iOS | 15.0 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 12+ |
| Developer | [Daniel Jankowski](https://appshunter.io/developer/1438405971) | [Richa Sharma](https://appshunter.io/developer/1490819029) |

## What reviewers say

### Instytut Kryptografii

[App page](https://appshunter.io/ios/app/instytut-kryptografii/id1438405972)

**Features:** macOS Compatibility

**In-app purchases:** none


### INDSPHINX 4.0

[App page](https://appshunter.io/ios/app/indsphinx-40/id1490819030)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Instytut Kryptografii free?

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

### Is INDSPHINX 4.0 free?

INDSPHINX 4.0 is free to download, with no in-app purchases.

### Do Instytut Kryptografii or INDSPHINX 4.0 have ads?

Neither Instytut Kryptografii nor INDSPHINX 4.0 shows ads.

### Which is updated more often, Instytut Kryptografii or INDSPHINX 4.0?

Instytut Kryptografii ships an update fortnightly, and INDSPHINX 4.0 every 10 months. Most recently, Instytut Kryptografii was updated on October 5, 2026 and INDSPHINX 4.0 on October 6, 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.*