Kryptos is a free, open-source Android Internet app. The latest version is 2.3.2, it is 22.6 MB, requires Android 8.0+, and is published by datakeeper.
- Size
- 22.6 MB
- Requires
- Android 8.0+
- Last updated
- 29 days ago25 Aug 2026
- Safety
- Scanned25 Aug 2026what does this mean?
License: AGPL-3.0-only · Target SDK: 34 — what does target SDK mean?
About this app
Kryptos encrypts messages directly inside the chat, so you never have to switch between apps. The Kryptos keyboard installs like any other system keyboard: enable it once, and it will be available everywhere you type. Write a message in WhatsApp, Telegram, or SMS, tap the lock icon, and the text in the input field is instantly replaced with ciphertext ready to send.
Screenshots
Permissions6 requested · 1 worth reviewing
What version 2.3.2 is allowed to do once installed. Highlighted entries reach outside the app’s own sandbox and are worth a second look. Not sure what a permission actually means? Learn how to evaluate app permissions.
CameraReview
Use the camera to take photos or video.
android.permission.CAMERA
Dynamic Receiver Not Exported Permission
No description available for this permission.
com.kryptos.android.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION
Hide Overlay Windows
No description available for this permission.
android.permission.HIDE_OVERLAY_WINDOWS
Use Biometric
No description available for this permission.
android.permission.USE_BIOMETRIC
Use Fingerprint
No description available for this permission.
android.permission.USE_FINGERPRINT
Vibrate
Use the vibration motor.
android.permission.VIBRATE
Version history1 published build
- v2.3.2Latestbuild 10Scanned
- Released
- 25 Aug 2026
- Size
- 22.6 MB
- Requires
- Android 8.0+
- Target SDK
- 34
Chinese: interface and a keyboard layout with pinyin input. Rude and unsafe words are out of the text steganography dictionaries, still 4096 words per language. Covers made by the word and sentence modes cannot be read by versions before 2.3.2, both sides have to update. Keyboard: bigger buttons, adjustable field size, the badge can be hidden. Send after encrypting now works in messengers with their own send button. Profiles and contacts can be renamed. Around twenty fixes.
Download v2.3.26 permissions · 1 worth reviewing
CameraReview
Use the camera to take photos or video.
android.permission.CAMERA
Dynamic Receiver Not Exported Permission
No description available for this permission.
com.kryptos.android.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION
Hide Overlay Windows
No description available for this permission.
android.permission.HIDE_OVERLAY_WINDOWS
Use Biometric
No description available for this permission.
android.permission.USE_BIOMETRIC
Use Fingerprint
No description available for this permission.
android.permission.USE_FINGERPRINT
Vibrate
Use the vibration motor.
android.permission.VIBRATE
New to sideloading? Read the install guide before opening an APK. Not sure this build supports your phone? See how to check your device’s Android version.
Read our guide to the best open-source Internet & networking apps for Android
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