CHRONOS is an open-source (GPL-3.0-only) Android app by jnda. The APK we host is 5.8 MB, it needs Android 7.0 or newer, and it declares 8 permissions.
The file on this page is CHRONOS 1.2.2, 5.77 MB, and it installs on Android 7.0 and newer.
We compared the signing certificate of this build with the certificate recorded the first time fr.jnda.android.system.smsscheduler 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 8 permissions, including access to sending SMS messages and 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
- 1.2.2
- Size
- 5.77 MB
- Requires Android
- API 24
- Package
- fr.jnda.android.system.smsscheduler
- Signature checked on
- Sep 19, 2026
- Where this file came from
- F-Droid
- Licence
- GPL-3.0-only
- Source code
- Source for this version
File SHA-256: 61caa6c66ae9156e666ad5cb4892ac715054268225ede95cb4cd9602489783c6
Signing certificate (SHA-256): 9e15d896fbd0048d643193129dd3fe576fac70c761349faa471cd8ba66bce064
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
- SEND_SMS
- READ_CONTACTS
- RECEIVE_BOOT_COMPLETED
- SCHEDULE_EXACT_ALARM
- FOREGROUND_SERVICE
- POST_NOTIFICATIONS
- WAKE_LOCK
- fr.jnda.android.system.smsscheduler.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION
Screenshots
