Koler is an open-source (GPL-3.0-only) Android app by Chooloo. The APK we host is 4.8 MB, it needs Android 7.1 or newer, and it declares 21 permissions.
The file on this page is Koler v1.6.1, 4.81 MB, and it installs on Android 7.1 and newer.
We compared the signing certificate of this build with the certificate recorded the first time com.chooloo.www.koler 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 21 permissions, including access to sending SMS messages, the microphone, your contacts, your call log and phone state. 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.
The most recent release upstream is from Jul 27, 2023, over 3 years ago. It still installs; it is simply not being updated.
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
- v1.6.1
- Size
- 4.81 MB
- Requires Android
- API 25
- Package
- com.chooloo.www.koler
- Signature checked on
- Sep 22, 2026
- Where this file came from
- F-Droid
- Licence
- GPL-3.0-only
- Source code
- Source for this version
File SHA-256: 3c35766c1b988b2af485c3a03ff08d1e3042feb76b40b2dcdb54481aaf9c5a11
Signing certificate (SHA-256): 0cc70c534520c0e9937afa7ffe1bde586c32f9ebb66126e6a1dea3d8f47db76e
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
- VIBRATE
- SEND_SMS
- BLUETOOTH
- WAKE_LOCK
- CALL_PHONE
- RECORD_AUDIO
- USE_BIOMETRIC
- READ_CONTACTS
- READ_CALL_LOG
- WRITE_CALL_LOG
- WRITE_CONTACTS
- MANAGE_OWN_CALLS
- READ_PHONE_STATE
- ANSWER_PHONE_CALLS
- MODIFY_AUDIO_SETTINGS
- READ_EXTERNAL_STORAGE
- WRITE_EXTERNAL_STORAGE
- CAPTURE_AUDIO_OUTPUT
- MODIFY_PHONE_STATE
- USE_FINGERPRINT
- com.chooloo.www.koler.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION