Cryptography

1.38.0

Nitramite

4.49

3,418 reviews

500,000+
Downloads

Free

Explore collection of ciphers, hashes, encoding methods and cryptographic tools.

Screenshots by Nitramite, from the Google Play listing

View on Google Play

About Cryptography

Cryptography is a tools app developed by Nitramite.

Install Statistics

Cryptography has been installed 660 thousand times. In the last 30 days, the app was installed 470 times.

User Ratings

Cryptography is rated 4.49 out of 5 stars. The rating is based on 3.4 thousand ratings.

App Information

Cryptography is freely available from Google Play. The app size is 24.01 MB. The latest version available is 1.38.0. The last update was on July 22, 2026.

Technical Requirements

The app has a content rating of Everyone. The app has been available on Google Play since March 2016.

Cryptography is made and published by Nitramite. AppBrain is an independent app data site and isn't affiliated with Nitramite. The app name, icon, screenshots and description belong to Nitramite and are shown as published on Google Play.

Description by Nitramite (from Google Play)

Unlock the World of Cryptography!

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Alternatives to Cryptography

Google Play Rating history and histogram

2.7K

270

300

Installs over time

Cryptography has been installed 660 thousand times. Over the past 30 days, it averaged 16 installs per day.

Changelog of Cryptography

Show changelog

Developer information for Nitramite

Nitramite

nitramite@outlook.com

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Comments on Cryptography for Android

★★★★★ Mark L Hodson · Jan 30, 2023

List 5 tabs: CIPHERS [58], HASHES [16], ENCODING [24] TOOLS [27], Favorites. Nice large database with a short summary and year each code was made.👍

★★★★★ Stella Cassieopeia · Sep 15, 2024

This is a good way to learn how to do encryption and decryption. Also, I am learning what Cryptography is.

★★★★★ TRiL Mobile · Apr 5, 2025

My grandkids loving sharing messages back and forth with this. And a couple of them love understanding the logic or substitution behind it.

★★★★★ Joshua Koch · Aug 11, 2024

I've had this app for years. I love it. It is one of the best codes and ciphers app available.

★★☆☆☆ Will Hurley (HurleybirdJr) · May 29, 2024

Great app for learning about cryptography, but I'm sad that the AFSK encoder and some other tools are missing :(Both in-app and in the GitHub repo, despite it listed in the description of the app? Would be nice to have them back.

★☆☆☆☆ S Egan (iamblackrabbit) · Nov 12, 2023

So, so broken...basically an advert feed. You can expect an ad about every two clicks. The rundown is this-- an interface with links to Wikipedia, or YouTube, for each encryption type...and a rudimentary and unfriendly interface that implements publicly available source code that you can clone off of GitHub.

★☆☆☆☆ Bob A · Oct 25, 2022

THERE'S A PROBLEM. I CAN'T FIND "AES" ANYWHERE ON THE CAPSTONE. IT'S LIKE NSA DOESN'T WANT US TO HAVE THE EASIEST "BANK" CYPHER TO DECRYPT. WHY, IF ONLY THERE WAS AN ENDLESS OCEAN OF "AES" TO SORT THROUGH! THESE OTHER CYPHERS ARE CERTAINLY NOT OLD & OUTDATED, & NO POSSIBLE WAY THEY'RE CRACKED 11 WAYS TO A BUNNY'S HUMP. EVEN THOUGH THERE ARE BRAND NEW, & OLDER CYPHERS THAT NOBODY CAN CRACK TO THIS DAY, THEY'RE NOT HERE. ONLY THOSE NSA HAS KEYS TO, SINCE THEIR MASONIC CRIMINALS INVENTED THEM!!

★☆☆☆☆ Dana Booth · Dec 12, 2025

I was about ten seconds into looking at this app when a commercial that you can't turn off for several seconds started playing full screen with audio during do not disturb time. No, thanks, at least give me a minute to see if I even want it. No, thanks.

Google Play Rankings for Cryptography

This app is not ranked

Technologies used by Cryptography

12 permissions · 49 libraries

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Frequently asked questions about Cryptography

Is Cryptography free?

Yes. Cryptography is free on Google Play.

Is Cryptography still available?

Yes. Cryptography is on Google Play, and the last update we saw was on July 22, 2026.

Does Cryptography contain ads?

Yes. Google Play lists Cryptography as containing ads.

How large is Cryptography?

Cryptography is 24.01 MB.

Is Cryptography suitable for children?

Google Play rates the content of Cryptography as suitable for everyone.

How many times has Cryptography been installed?

Google Play lists 500,000+ installs for Cryptography.

How do people rate Cryptography?

Cryptography scores 4.49 out of 5 stars, from 3,418 ratings on Google Play.

Who made Cryptography?

Cryptography was developed by Nitramite. It is listed in the tools category on Google Play.

What are the best alternatives to Cryptography?

People looking at Cryptography also look at these tools apps: MCipher: Encrypt & Decrypt, Caesar cipher - De-/Encryption, Ciphers! Create a secret, Puzzlehunt Assistant, GEN Gematria Calculator.

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