Welefon

F-Droid Open Source | Phone & SMS

6 Downloads 16 Views v2.0 3.17 MB 4.1+

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(3.17 MB)

Editor's Overview

Welefon is a phone & sms application developed by F-Droid Open Source, packaged as a single Android APK of version 2.0 weighing in at 3.17 MB. The package targets Android 4.1+ and above. Below you'll find the publisher's own description, a quick spec sheet, and a short buyer-beware checklist so you know exactly what you're installing before tapping download.

Install Checklist

Only download through the button on this page — never from third-party mirrors or shortened links, which are the most common way malware spreads.
File size is a light 3.17 MB, so it installs quickly even on modest connections.
This build is signed by "F-Droid Open Source" — always verify the developer name matches what's listed on the app's official store page before installing an update.
After install, Android may prompt you to allow "Install from unknown sources" — approve only this one install, then revoke the permission in Settings > Apps > Special access.
We link directly to the APK file or the publisher's repository; we do not modify the binary. Always run a virus scan after any sideloaded install.

About this app

Welefon is a Phone App that is simple and modern at the same time. You can dial numbers and receive calls. It does not do anything you do not need, e.g. provide a contact list that your system contact App alrady contains.

The special feature of Welefon is an API that allows a seamlessly integration of other apps in your phone experience. The Welefon source code contains an example App that uses the API in the folder apidemoapp.

Using this API, other Apps can receive details about the current calls. Like the deprecated PhoneStateListener of Android, this contains the phone number. In contrast to the PhoneStateListener, you do not need to fear the removal of the API. Additionally, Welefon includes details of calls in the background, e.g. calls that are in the state "hold".

Welefon can receive additional caller details from other Apps. This can be a caller name, a caller details action and a RemoteView. The received caller name is shown as you expect it, completly independent of the system contact list. If a detail action is provided, then you can tap on the name to jump directly to the right place in the other App.

The RemoteViews are the method that allows Widgets on your homescreen. The same method can be used to show additional details and controls in the call screen. This allows showing any extra details.

Of course this is safe and secure: The Welefon API can only be used with your permission.

Details

Version	v2.0
Size	3.17 MB
Developer	F-Droid Open Source
Category	Phone & SMS
Package	de.wivewa.dialer
Android	4.1+
Last Updated	Oct 29, 2026
Downloads	6

Frequently Asked Questions

Is Welefon free to download?
Yes. The APK file linked from this page is free. The developer may offer in-app purchases once installed, but obtaining the installer itself costs nothing.

What Android version does Welefon require?
Android 4.1+ or newer. Installing on older devices may cause crashes or refuse to install.

Is Welefon safe to install?
We link to the exact APK published by F-Droid Open Source. We do not modify the file. Still, as with any sideloaded app, scan it with a reputable antivirus before opening it, and only grant permissions the app genuinely needs.

How do I update Welefon?
Install the newer version on top of the old one — Android will keep your data. If the signature differs, uninstall first (you may lose local progress).

Why is the app not installing?
Common causes: not enough storage, an older Android version than 4.1+, or a conflicting build already installed. Free up space, check your OS version, and uninstall any previous copy before retrying.

How to Download & Install Welefon

Tap the Download APK button above and save the file to your device.
Open your device Settings → Security (or Apps → Special access → Install unknown apps) and allow your file manager or browser to install unknown apps for this one file only.
Open the downloaded de.wivewa.dialer.apk file from your Downloads folder.
Tap Install and wait for Android to finish.
Open «Welefon» by F-Droid Open Source and grant only the permissions it actually needs.
Revoke the "unknown sources" permission once you are done installing.

Note: this page hosts or links to the installer only. The application name, icon and description are provided for identification. All trademarks belong to their respective owners.