HeliBoard is an open-source (GPL-3.0-only) Android app by HeliBorg. The APK we host is 21 MB, it needs Android 5.0 or newer, and it declares 6 permissions.
The file on this page is HeliBoard 4.2, 21.39 MB, and it installs on Android 5.0 and newer.
We compared the signing certificate of this build with the certificate recorded the first time helium314.keyboard entered the site, and published both the file's SHA-256 and the certificate's fingerprint above so you can check the download yourself. That comparison says the file was not repackaged by someone else; it is not a review of what the app does.
The manifest inside the APK declares 6 permissions, including access to your contacts. Android asks you to approve those the first time the app needs them.
Its licence is GPL-3.0-only. We took this build from F-Droid, and the source for this exact version is linked below.
We do not show a star rating or an install count for this page: we have no measured figure for either, and a number we cannot source is worth less than an empty field.
- Version
- 4.2
- Size
- 21.39 MB
- Requires Android
- API 21
- Package
- helium314.keyboard
- Signature checked on
- Oct 26, 2026
- Where this file came from
- F-Droid
- Licence
- GPL-3.0-only
- Source code
- Source for this version
File SHA-256: 69b2b2fb349934371b1ed2d3569541cc0bda987f8aaf5eb5f5b157961f76de86
Signing certificate (SHA-256): 5ec0a5313aa43558ee75b20b58ccd8194cdbf066df94a43ba288d933d60b86ce
We check that this file carries the same signing certificate as earlier releases of the same package. That shows the APK was not repackaged by someone else — it is not a security review of the app.
Declared permissions
- READ_USER_DICTIONARY
- RECEIVE_BOOT_COMPLETED
- VIBRATE
- WRITE_USER_DICTIONARY
- READ_CONTACTS
- helium314.keyboard.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION
More about this app
Our sister site 2113 Apps has a hand-written guide to HeliBoard, with a breakdown of what its APK contains. Read about HeliBoard on 2113 Apps
Screenshots


