Messaging

571 open source Messaging apps

CUPS Printing
APK
This app provides a Print Service to Android. This means that once it's installed, you need to enable it in the 'Print' section of the settings app. Once the service is enabled, printers are automatically discovered using the mDNS protocol. You can print anything you want from any app, as long as the print service is enabled. Of course, printing document is an important matter. Because your documents are your most private information, you don't want anybody to have access to this information. This is why this app is completely open sourced and free to use, modify and redistribute.
F-DroidGitHub
Call Counter
APK
Call Counter helps to manage the call and SMS plan contracted on your mobile phone. The App display the minutes consumed by outgoing calls and the number of SMS messages sent in the current month (by default) or in a selected billing cycle. A selected range of dates can also be queried. The App is available in English, German and Spanish.
F-DroidGitHub
Call Limiter
APK
Call Limiter is a simple, open-source Android app that helps you take control of your phone calls. Set time limits for specific contacts and let the app automatically hang up when the limit is reached — making it easy to save time, avoid distractions, and manage conversations better. Features: Per-Contact Call Limits: Define custom call durations for individual numbers. Automatic Hang-Up: Calls are disconnected when the chosen time is reached. Easy Time Selection: Choose limits using a bottom sheet scroll wheel for a smooth experience. Global Call Limit: Set default time limit for all contacts. Persistent Storage: Your limits remain saved until you decide to change or delete them. Flexible Editing: Update or remove call limits anytime with ease. Emergency Buffer: Add a few extra seconds for urgent or unexpected needs. Modern Theming: Supports both light and dark modes, adapting to your system theme. Privacy-Focused: Works entirely offline — no internet, no tracking, no data sharing. Stay in control of your conversations with Call Limiter — lightweight, private, and designed to fit seamlessly into your daily calling habits.
F-DroidGitHubIzzyOnDroid
Call Log Sync
APK
In our office, we synchronize the call logs from android with the call logs of our local telephone system and analyze them. We can get up to 95% of the calls with the call log of our local telephone system during our office times. But we need the call logs from our "attendance" android phones too, which are used outside of our office times.With this android app, you can sync your call log with a remote endpoint.Privacy Policy:The app only sends the call log to the specified remote endpointThe app does not collect any data at allThe app does not send any data to third party services
GitHubIzzyOnDroid
CallForwardingStatus
APK
With this app you can forward your calls on a simple push of a button. Be it in the app or from a widget.Features:save up to three phone numberssimply switch between thoseResizable widget displays current call forwarding status
GitHubIzzyOnDroid
Calliope mini
APK
With the Calliope mini, countless creative possibilities are at your fingertips. Whether you want to build a robot or transmit messages: With just a few clicks, you can create your own programs in no time and get things moving. In addition to 25 red and three RGB LEDs and two programmable buttons, the board contains a combined position sensor with motion sensor and compass as well as a Bluetooth module that Calliope mini can use to communicate with other devices.
F-DroidGitHub
Calyx VPN
APK
With CalyxVPN, you can safely encrypt all your network traffic and route it through the Calyx Institute. • Anonymous VPN: No user accounts and no logging. • Anonymous IP Address: When the VPN connection is active, all the servers on the internet will see you as originating from an anonymous IP hosted by Calyx. • Free: This is a free service provided by the Calyx Institute. • Open Source: Both the client and server are 100% free and open source software. • No IPv6 Leaks: CalyxVPN will not leak IPv6 traffic (requires root). • No DNS Leaks: CalyxVPN is configured on both the client and the server to prevent any leaking of DNS. All DNS requests are anonymously handled by Calyx when the VPN is on. • Circumvention: When "Use Bridges" option is enabled, all your traffic is hidden as normal web traffic, in order to circumvent some censorship systems that block VPN traffic. As with all VPNs, CalyxVPN only adds security to your data as it flows over the network. It cannot protect the content of your data that is stored or that you give to a website. It also does not prevent advertising and tracking in your apps or web browser (except when this tracking is based on your IP address).
F-Droid
CanZE
APK
Description --------------- If you want to learn about your Renault ZOE electric vehicle, you’ve come to a good starting point. We will supply you with an app that displays driving stats and lots of interesting information about your car, all you need is a bluetooth OBDII dongle and an Android device. Note: CanZE will not work yet on a ZOE model ZE50 More on http://canze.fisch.lu Informal warning ----------------------- Before you download and use this software consider the following: you are interfering with your car and doing that with hardware and software beyond your control (and frankly, for a large part beyond ours), created by a loose team of interested amateurs in this field. Any car is a possibly lethal piece of machinery and you might hurt or kill yourself or others by using it, or even by paying attention to the display instead of watching the road. Be extremely prudent! By even downloading this software, or the source code provided on Github, you agree to have completely understand this. Formal disclaimer ----------------------- CANZE ("THE SOFTWARE") IS PROVIDED AS IS. USE THE SOFTWARE AT YOUR OWN RISK. THE AUTHORS MAKE NO WARRANTIES AS TO PERFORMANCE OR FITNESS FOR A PARTICULAR PURPOSE, OR ANY OTHER WARRANTIES WHETHER EXPRESSED OR IMPLIED. NO ORAL OR WRITTEN COMMUNICATION FROM OR INFORMATION PROVIDED BY THE AUTHORS SHALL CREATE A WARRANTY. UNDER NO CIRCUMSTANCES SHALL THE AUTHORS BE LIABLE FOR DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES RESULTING FROM THE USE, MISUSE, OR INABILITY TO USE THE SOFTWARE, EVEN IF THE AUTHOR HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. THESE EXCLUSIONS AND LIMITATIONS MAY NOT APPLY IN ALL JURISDICTIONS. YOU MAY HAVE ADDITIONAL RIGHTS AND SOME OF THESE LIMITATIONS MAY NOT APPLY TO YOU. THIS SOFTWARE IS ONLY INTENDED FOR SCIENTIFIC USAGE. Requested permissions ----------------------- - location (ACCESS_COARSE_LOCATION, ACCESS_FINE_LOCATION): Include location in optional local logging - Bluetooth (BLUETOOTH, BLUETOOTH_ADMIN): Canbus dongle communication - storage (WRITE_EXTERNAL_STORAGE and thus implicitly also READ_EXTERNAL_STORAGE): Optional writing of logs - network (INTERNET): Get app news from GitHub repo
F-DroidGitHub
C
CaptivePortalLogin
APK
Saves the login procedure for a network with a Captive Portal and reproduces it automatically.
F-DroidGitHub
Car Bus Interface
APK
Interface with a vehicle's communication bus via Bluetooth OBD2 dongle (ELM327 compatible). It allows the Android device to respond to specific bus messages, such as those occurring when the user presses physical buttons inside the vehicle.
F-DroidGitHub
Carrion
APK
Automatically rejects all calls failing STIR/SHAKEN verification. Requires official support for Android 11 or higher, working VoLTE, and carrier support.
F-Droid
Cat Printer
APK
Cat-Printer supports some Bluetooth thermal printers of model GB01, GB02, GT01, GB03. It has cross-platform support (is also available for Linux, MacOS and Windows).The app might ask you for background location access, which you can safely deny. (Foreground) Location permission is required for scanning Bluetooth devices in newer Android system.
GitHubIzzyOnDroid
CatShare
APK
Features: - Bluetooth discovery - Receive file - Send file (Shizuku required)
F-DroidGitHub
ChatLaunch for WhatsApp
APK
The application is a user-friendly Android app designed to streamline communication on WhatsApp. It allows users to initiate chats directly without the necessity of adding phone numbers to their contact list, offering significant convenience for individuals who engage in one-time or infrequent communications. This feature is especially useful for professionals and businesses that need to connect quickly with clients without cluttering their personal contact list. Additionally, the app boasts an exclusive launcher that enhances user experience by providing easy access and navigation. This tailored launcher is optimized for speed and efficiency, allowing users to open new chat sessions with just a few taps. Another standout feature of the app is its integration with Android's quick actions. This integration permits users to execute common tasks directly from their device's home screen or through shortcuts, dramatically reducing the time and steps needed to start a chat.
F-DroidGitHub
Cheogram
APK
The Cheogram Android app allows you to join a worldwide communication network. It especially focuses on features useful to users who want to contact those on other networks as well, such as SMS-enabled phone numbers. Based on the app Conversations, but with unique features: * Messages with both media and text, including animated media * Unobtrusive display of subject lines, where present * Links to known contacts are shown with their name * Show timestamps for calls * Integrates with gateways' add contact flows * When using a gateway to the phone network, integrate with the native Android Phone app * Address book integration * Tag contacts and channels and browse by tag * Command UI Where to get service: Cheogram Android requires you have an account with a Jabber service. You can run your own service, or use one provided by someone else, for example: https://snikket.org/hosting/ Art in screenshots is from https://www.peppercarrot.com by David Revoy, CC-BY. Artwork has been modified to crop out sections for avatars and photos, and in some cases add transparency. Use of this artwork does not imply endorsement of this project by the artist.
DirectF-Droid
Child Monitor
APK
An Open Source Child Monitor for Android Child Monitor allows two Android devices to act as a baby monitor. The first device, left in the room with the baby, will advertise itself on the network and stream audio to a connected client. The second device, with the parent, will connect to the monitoring device and receive an audio stream. The project is a fork of Protect Baby Monitor which is declared as "on hiatus" by its developer. Child Monitor works on Android 5.0 (Lollipop) and newer, i.e. Android SDK 21. Warning: This version of Child Monitor is incompatible with versions older than 1.0! Bugfix in this release: Wrong color scaling of volume monitor background.
F-DroidGitHub
ClemRemote
APK
ClemRemote is a Remote Control for Clementine Music Player available on all platform (developped in C++/QT). It is open source and published under licence GPL v3. You can find the source on github here.Its main goal was to add the Files View missing in the existing Android Remote.It's designed like a player, so from any Menu you're seeing the current played track and can pause, change the position, go to the next one... and also change the level of the volume.You can fully control the music on your Clementine server: create playlists, browse the file system or the library, launch your saved internet radios... It's also possible to download the songs, albums or playlistFeatures:a Player to start previous/next track, play, pause, skip, shuffle, change volume, etc.a Playlist Menu to manipulate the playlist – edit, search, rename, clear …a Files Menu to walk the directories below Clementine's root folder, download tracks, append tracks to the playlist, and morea Library Menu to search Clementine's library for text (incl. using regular expressions) in title, author etc.an Internet Radio Menua Global Search Menu that is not yet implementedFor more details, please refer to the READMEPS: I've contribute to Clementine Player in order to add the new feature for browsing Files, Internet Radio and be able to do certain downloads. My changes have been merged, but the new version of Clementine (v1.4) is not yet out... I've built a version with all the changes, it's here: Clementine v1.4.0rc1ClemRemote. You then need to activate the network remote in Tools -- Preferences -- Network Remote.
GitHubIzzyOnDroid
Clerotri
APK
Clerotri is an open source client for Upryzing and Revolt instances. It supports a variety of Revolt's features, from basic messaging to account and server management.
GitHubIzzyOnDroid
C
ClipboardService
APK
clipboard-service is a simple Android service that accepts the string and saves it to clipboard. It can be used to save string from computer to clipboard in Android device. Usage Run these commands from computer's command-line terminal. Device needs to be connected via ADB. # Start service and pass a string value to be saved in device's clipboard: adb shell am startservice -a eu.micer.ClipboardService -e text "SampleText" # Invoke paste action: adb shell input keyevent 279 Not working? It can happen that you get this error: ~ adb shell am startservice -a eu.micer.ClipboardService -e text "SampleText" Starting service: Intent { act=eu.micer.ClipboardService (has extras) } Error: app is in background uid null You just need to start the app via command: adb shell am start -n eu.micer.clipboardservice/eu.micer.clipboardservice.EmptyActivity or find the ClipboardService in the app list and start it manually.
GitHubIzzyOnDroid
C
Cloak
APK
A Cloak plugin for Shadowsocks. Cloak is a universal pluggable transport that cryptographically obfuscates proxy traffic as legitimate HTTPS traffic, disguises the proxy server as a normal web server, multiplexes traffic through a fixed amount of TCP connections and provides multi-user usage control. Cloak works fundamentally by masquerading proxy traffic as normal web browsing traffic. This increases the collateral damage to censorship actions and therefore make it very difficult, if not impossible, for censors to selectively block censorship evasion tools and proxy servers without affecting services that the state may also heavily rely on. Details on how Cloak works can be found here. Shadowsocks-android is required, as well as a Cloak-compatible proxy server.
F-DroidGitHubIzzyOnDroid
Close Circuit
APK
Close as in close-by, not close as in shut down. The name is a play on CCTV.This project lets you create a PAN surveillance system using WiFi IP Webcams. The monitor functions as an AP using the Wi-Fi Direct APIs, and can have multiple Wi-Fi cameras connected to it.The terminal monitor runs the CC app (which you are currently looking at), and the cameras are other Android devices running the Android IP Webcam app.
GitHubIzzyOnDroid
CodeCatcher
APK
Codecatcher: Automate Your Phone With Sms Do you ever need to quickly copy SMS codes for websites or forward them to friends or family? Do you want to listen codes instead of reading from phone? CodeCatcher has your back, making all your SMS actions a breeze. Codecatcher automatize your device by your settings. Let your device work for you! This handy little app automatically filters your incoming messages and does exactly what you need with them—no more manual copying or forwarding. Codecatcher listens SMS messages and if a any own your filter matches, run your actions. With Codecatcher you can set up limitless different filter for different senders and different formats. Can be set different actions for each filter. You can send forward shipment codes to your family members. Listen your 2 factor authentication codes. What CodeCatcher Can Do: * Show History: Codecatcher can be show your filtered code history by sender and date to see all of them in one screen. * Little Stats: You can clearly see latest sender history or specific filter history from app. * Quick Notifications: Get your SMS codes right in your notification bar. You can even customize the notifications so you can spot the code at a glance. * Auto-Forward SMS: Want to send an SMS code to someone? CodeCatcher can automatically forward it to any phone number. It uses your carrier’s SMS service, so the recipient doesn’t need any special app. It’s a super easy way to share codes with others. * Text-to-Speech (TTS): Need to hear your SMS codes instead of reading them? CodeCatcher can read them out loud using your phone’s built-in TTS. Perfect when you’re on the go or driving! * Copy to Clipboard: CodeCatcher can automatically copy your SMS codes to the clipboard so you can paste them wherever you need, saving you time. Codecatcher knows you want privacy! * Full Offline: CodeCatcher works completely offline. Your messages and data stay on your phone—nothing is stored or shared anywhere or anyone. * No Data Collection: We don’t collect any data or track how you use the app. Everything stays private, and SMS forwarding happens only with your permission. We love hearing back. We don't want some fancy graphs. Just comment on store. Why Use CodeCatcher? CodeCatcher is your go-to tool for taking the hassle out of managing SMS codes. It’s small, simple, and designed to make your life easier. Dark Mode Available Codecatcher can be used in dark. Also dynamic theme is available.
F-DroidGitHub
Coma Phone
APK
Auto-answers calls on speakerphone. Always hear your friends talk, even while in a coma.
F-DroidGitHub
Contacts
APK
Contacts Organised by Group: • Select any Android account • Fast view by groups • Large Text • Launch Contacts App
F-DroidGitHub