# Kryptos Tools vs Sigmakey

The clearest difference is in-app purchases: Kryptos Tools at none against Sigmakey's 1. Kryptos Tools also leads on iOS requirement (18.6 vs 26.0). On price, ads and device support there is nothing between them.

Both are free to download. Sigmakey sells 1 one-off in-app purchase. Kryptos Tools asks for nothing beyond the download.

## The numbers

| Metric | Kryptos Tools | Sigmakey |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (7 ratings)](https://appshunter.io/ios/app/kryptos-tools/id6451396051/reviews)** | — |
| Number of ratings | **7** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Monthly | — |
| Monetization | Free | — |
| Size | 36 MB | 13 MB |
| Requires iOS | **18.6** | 26.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Jeffrey Williams](https://appshunter.io/developer/1151607389) | [Andrii Bashta](https://appshunter.io/developer/1547467775) |

## What reviewers say

### Kryptos Tools

[App page](https://appshunter.io/ios/app/kryptos-tools/id6451396051)

This app offers a comprehensive suite of classic cryptography tools, including Vigenère and Transposition ciphers, to help users explore and potentially solve complex puzzles. It consolidates features from previous versions and provides detailed information on famous unsolved codes.

**Highlights:** Classic cipher implementations, Vigenère cipher, Transposition Matrix, Detailed puzzle information, Sixteen classic ciphers, Future cipher additions

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

**In-app purchases:** none


### Sigmakey

[App page](https://appshunter.io/ios/app/sigmakey-math-keyboard/id6788025133)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Sigmakey Pro | $9.99 | one-time |


## Frequently asked questions

### Is Kryptos Tools free?

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

### Is Sigmakey free?

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

### Do Kryptos Tools or Sigmakey have ads?

Neither Kryptos Tools nor Sigmakey shows ads.

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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.*