# Kryptomate

> Encrypt and decrypt text using Caesar and Vigenère ciphers. (iPhone/iPad app by Kilian Koeltzsch.)

- Source: https://appshunter.io/ios/app/kryptomate/id957165023 (this page in markdown: same URL + `.md`)
- Developer: [Kilian Koeltzsch](https://appshunter.io/developer/957165022)
- Category: Utilities
- Price: Free
- Age rating: 4+
- Requires: iOS 8.0 · 9 MB
- Languages: American English, German (Germany)
- Released: 2015-01-21
- Data updated: 2026-06-11
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/kryptomate/id957165023/reviews.md

## What is Kryptomate?

Kryptomate is an app to help you en- or decode small text snippets through either Caesar or Vigenère cipher. Be it for a puzzle (e.g. for a Geocache) or for fun with your friends.

The caesar cipher is probably the simplest and most well-known cipher out there. It works by shifting each letter of the given phrase forward in the alphabet by a given number. It is named after Julius Caesar, who was known for encrypting sensitive military information with a shift of three.
The caesar cipher is often used to teach the basics of cryptography, as it's purpose and function is easily understood.

The vigenère cipher works using the same principle, but is significantly younger and it took quite a while for the first person to break it. It uses a key instead of a single shift to determine a different shift for each letter of the given phrase. Doing so makes it a lot harder for a single person to try and break it by guessing the shift.

The ciphers used in Kryptomate are in no way something you should use to keep actual data safe. Even the newer of the two methods is over 450 years old. The caesar and vigenère ciphers are both very simple concepts and often used in puzzles. Both are not secure for modern purposes.

Please note that Kryptomate will only work with alphabetical characters (A-Z, a-z). Punctuation, numbers and other special characters will stay the same.

The source for this application is available on Github. See https://github.com/kiliankoe/kryptomate-ios

## Key features

- Caesar cipher encryption/decryption
- Vigenère cipher encryption/decryption
- Handles alphabetical characters
- Preserves non-alphabetical characters
- Source code available on GitHub

## Recent user reviews (1 of 1)

All indexed reviews: https://appshunter.io/ios/app/kryptomate/id957165023/reviews.md

### 5/5 — Easy to use

*2016-04-14*

Nice and simple to use but I'm not sure the Vigenere encipherment uses the traditional method.

## Frequently asked questions about Kryptomate

### What is Kryptomate?

Kryptomate is a free utility app that allows users to encrypt and decrypt text using two classic ciphers: Caesar and Vigenère. It's designed for puzzles and casual use, not for securing sensitive information.

### What ciphers does Kryptomate support?

Kryptomate supports the Caesar cipher, a simple letter-shifting method, and the Vigenère cipher, a more complex polyalphabetic substitution cipher that uses a keyword.

### Can Kryptomate encrypt numbers or special characters?

No, Kryptomate only works with alphabetical characters (A-Z, a-z). Punctuation, numbers, and other special characters will remain unchanged during the encryption or decryption process.

### Is Kryptomate suitable for securing important data?

No, Kryptomate's ciphers are historical and not secure for modern data protection. They are intended for puzzles, educational purposes, or lighthearted communication.

### What devices does Kryptomate support?

Kryptomate is available for iPhone and iPod devices. It was last updated on January 21, 2015, with version 1.0.

### Is Kryptomate free to use?

Yes, Kryptomate is completely free to download and use. There are no in-app purchases or advertisements within the application.

### Where can I find the source code for Kryptomate?

The source code for Kryptomate is publicly available on GitHub. You can find it at https://github.com/kiliankoe/kryptomate-ios.

### What is the age rating for Kryptomate?

Kryptomate has an age rating of 4+, making it suitable for a wide range of users, including children interested in learning about basic cryptography.

## Version history (last 1 release)

### 1.0 — 2015-01-21

This app has been updated by Apple to display the Apple Watch app icon.

## Apps similar to Kryptomate

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [Caesar-Cipher](https://appshunter.io/ios/app/caesar-cipher/id1559575000) | 1.0 (1) | Free | Utilities |
| [Aquarium Planner AR](https://appshunter.io/ios/app/aquarium-planner-ar/id1290236851) | 1.8 (10) | $1.99 | Utilities |
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| [Whisper - Text Encryption](https://appshunter.io/ios/app/whisper-text-encryption/id6737430843) | — | Free | Utilities |
| [QR Generator—Fast Code Maker](https://appshunter.io/ios/app/qr-generatorfast-code-maker/id6477485258) | — | Free | Utilities |
| [Sub Cipher](https://appshunter.io/ios/app/sub-cipher/id1582898316) | 3.8 (4) | Free | Utilities |

## More apps by Kilian Koeltzsch

- [ParkenDD](https://appshunter.io/ios/app/parkendd/id957165041)
- [Initiative Dice Roller](https://appshunter.io/ios/app/initiative-dice-roller/id1481489432)
- [Mensa Dresden](https://appshunter.io/ios/app/mensa-dresden/id1481891701)

All apps by Kilian Koeltzsch: https://appshunter.io/developer/957165022

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-06-11.*