SMS
111 open source SMS apps
SMS2Email
APK
SMS2Email forwards incoming SMS messages to a specified email address. This app is useful for users who need to access their SMS messages remotely.
F-DroidGitHubIzzyOnDroid
Saracroche
APK
Note: This application is intended for use in France only. Saracroche is an Android app that protects you from unwanted calls by automatically blocking spam phone calls. It's designed to be simple, effective, and privacy-friendly. Features: • Automatically blocks spam numbers • Native Android application with modern Material Design 3 UI • Privacy-respectful: no call data is collected or transmitted • Regular updates of the spam number database • Uses Android's built-in Call Screening API for optimal performance Privacy & Security: Saracroche prioritizes your privacy. The app operates locally on your device and doesn't collect any personal information or call data. All spam detection is performed on-device using a regularly updated database. How it works: The app uses Android's Call Screening Service to automatically identify and block known spam numbers before they can disturb you. When a call comes in, Saracroche checks the number against its spam database and blocks it if it's identified as spam. Requirements: • Android 10 (API level 29) or higher • Permission to be set as the default Phone app for call screening • Intended for use in France only Open Source: Saracroche is open source software. You can review the code, contribute, or build it yourself from the source code available on GitHub.
F-Droid
Say My Texts
APK
Reads out loud the SMS you receive while a headset is plugged or a bluetooth handfree is connected.
F-Droid
SchildiChat Legacy
APK
SchildiChat is a client for the matrix protocol, based on the Element app. The matrix protocol is a decentralized approach to modern messaging, allowing for end-to-end encryption, shared message history across multiple devices, and more. By building on Element, SchildiChat inherits all features of one of the most complete and feature-rich Matrix-clients currently available. On top, SchildiChat adds a different design and various extra tweaks, customization options, and additional community features. SchildiChat is open source: https://github.com/SchildiChat/SchildiChat-android More information about the Matrix protocol: https://matrix.org/
F-DroidGitHub
Schlikk Calls
APK
Raise the volume on call - no need to turn up notifications Grant permission READ_PHONE_STATE (mandatory) to get the basic functionality. On incoming call the volume is adjusted to your preference. After the call the volume is reset to the previous setting. If your phone is in DoNotDisturb mode however, nothing is changed. Enable reading of the phone numbers so that the app can see who is calling you. With this you can set a different volume for each number. Grant permission ACCESS_NOTIFICATION_POLICY (optional) to enable the app to toggle your phone's DoNotDisturb mode. With this you can mark numbers as important. The app will deactivate DoNotDisturb mode iff an important number calls you.
F-Droid
Serval Mesh
APK
The Serval Project is seeking funds to develop a mesh extender which aims to work around the limitations caused by the lack of AdHoc mode in Android. Visit the campaign website to the cause. N.B The app no longer asks for root by default although you can still try it in adhoc mode. Prebuilts are no longer in the source code. This is experimental software: it may not work as advertised. It may lose or alter messages and files that it carries; it may consume a lot of space, speed and battery, and it may crash unexpectedly. Mobile communications are useful, but depend on infrastructure that can be damaged, overwhelmed, or even absent. This app assumes zero infrastructure. The phones talk to each other using WiFi; relaying calls and messages and figuring out how to resolve numbers. In other words, it lets your phone communicate with other Android phones running Serval Mesh within WiFi range. Requires root: No. Basic Android still doesn't allow WiFi in AdHoc mode, so the app will ask for root if you try to enable adhoc mode. The Java/XML part is distributable under the GNU GPLv3 while the serval-dna (distributed number architecture) project is GPLv2.
F-DroidGitHub
S
Session F-Droid
APK
This is an unofficial rebrand of Session without Firebase push service so the "fast mode" can't be enabled. If you want to use the "fast mode" please use the official Session client from their own repo. Session is a new breed of encrypted private messenger, built on a unique network of user-operated servers spread all over the world. With no central servers, Session can't leak or sell your data. You don't need a phone number or email to sign up — your Session ID can stay completely anonymous. And Session's private routing protocols keep your messages secret and secure. No one ever knows who you're talking to, what you're saying, or even your IP address. • Fully anonymous account creation, no phone number or email required • Decentralised server network: No data breaches and no central point of failure • No metadata logging: Session doesn't store, track, or log your messaging metadata • IP address protection: Device IP addresses are never exposed to the person you're talking to or the servers holding your data • Closed groups: Private, end-to-end encrypted group chats for up to 100 people • Encrypted attachments: Share voice snippets, photos, and files with Session's security and privacy protections • Free and fully open-source: Don't take our word for it — check Session's code yourself Session is free as in free speech, free as in free beer, and free of ads and trackers. Session is built and maintained by the Loki Foundation, Australia's first privacy tech not-for-profit organisation. Take back your online privacy today — download Session. Want to build from source, report a bug, or just take a look at our code? Check out Session on GitHub: https://github.com/session-foundation/session-android
F-DroidGitHub
ShellMS
APK
ShellMS is the simplest and easiest ADB Shell Messaging Application. If you don't know what ADB or SDK is you definitely don't need this app. For the others it's useful tool to speed up messaging when you're working on your computer. Usage: * with mobile phone numbers: adb shell am startservice --user 0 -n com.android.shellms/.sendSMS -e contact +123456789 -e msg "Message" * with display names from phone: adb shell am startservice --user 0 -n com.android.shellms/.sendSMS -e contact "Contact's DISPLAY NAME" -e msg "MSG"
F-DroidGitHub
Silence
APK
NOTE: App has is not been developed any more and its source repo is no longer available. Silence is an SMS/MMS application that allows you to protect your privacy while communicating with friends. Using Silence, you can send SMS messages and share media or attachments with complete privacy. Features: * Easy. Silence works like any other SMS application. There\'s nothing to sign up for and no new service your friends need to join. * Reliable. Silence communicates using encrypted SMS messages. No servers or internet connection required. * Private. Silence provides end-to-end encryption for your messages using the painstakingly engineered Signal encryption protocol. * Safe. All messages are encrypted locally, so if your phone is lost or stolen, your messages are protected. * Open Source. Silence is Free and Open Source, enabling anyone to verify its security by auditing the code.
F-DroidGitHub
Simlar - secure calls
APK
Protect your privacy and make free mobile phone calls over the internet with Simlar. Your calls are fully encrypted and tap-proof. Simlar is very easy to use. Just select your contact and call them! After installation, all of your contacts who also use Simlar will be listed in the app automatically. Maybe some of your friends already have Simlar. If not, you can invite them easily. Simlar is also available for iPhones. Simlar is based on the established end-to-end encryption protocol ZRTP. No one can listen to your conversation, not even us. During your first call, you need to match a short code with the person you are speaking to. This protects against man-in-the-middle attacks and only needs to be done once per contact. The app development is driven by the open source community. You can find the source code at simlar.org. Simlar is free of charge. All you need is an internet connection. The more stable it is, the better your sound quality. The average “traffic” corresponds to 1 megabyte for a 2-minute call. For more details see simlar.org.
F-DroidGitHub
S
Simple sms remote
APK
Remotely control a phone through sms messages. Install the app on the device, which should be controlled, and send control commands from any messenger to it. Features * specify which modules are accessible and which phones are granted * start sms receiver after boot * send multiple commands with one message * reply to sender phone with result message * show permanent notification with receiver status * view log of sms receiver Modules * Hotspot: enable, disable, check if enabled * Wifi: enable, disable, check if enabled * Bluetooth: enable, disable, check if enabled * Mobile Data Connection: enable, disable, check if enabled * Battery: get level, check if battery is charging * Location: get current device coordinates * Audio Volume: set and get volume of all audio types (ringtone, music, ...) * Display: set and get brightness, set and get display off timeout, turn display off * Camera: take photo with default settings or custom options (flash, autofocus and more) Security Granted phones are required to be set for each module, so not everyone can control the device. However, if someone fakes his phone number he is able to use all enabled modules. (Note that this might be a complicated and illegal procedure. Moreover also common antitheft apps like avast trust the sender's phone number.
F-DroidGitHub
SimpleStatsWidget
APK
Displays simple count statistics on sms and calls as widget. It shows your outgoing sms and outgoing call minutes per month in an widget on your home screen or lock screen.
F-DroidGitHub
SimpleX Chat
APK
SimpleX - the first messaging platform that has no user identifiers, not even random numbers! Security assessment was done by Trail of Bits in November 2022. SimpleX Chat features: end-to-end encrypted messages, with editing, replies and deletion of messages. sending end-to-end encrypted images and files. single-use and long-term user addresses. secret chat groups - only group members know it exists and who is the member. end-to-end encrypted audio and video calls. private instant notifications. portable chat profile - you can transfer your chat contacts and history to another device (terminal or mobile). SimpleX Chat advantages: Full privacy of your identity, profile, contacts and metadata: unlike any other existing messaging platform, SimpleX uses no phone numbers or any other identifiers assigned to the users - not even random numbers. This protects the privacy of who you are communicating with, hiding it from SimpleX platform servers and from any observers. Complete protection against spam and abuse: as you have no identifier on SimpleX platform, you cannot be contacted unless you share a one-time invitation link or an optional temporary user address. Full ownership, control and security of your data: SimpleX stores all user data on client devices, the messages are only held temporarily on SimpleX relay servers until they are received. Decentralized network: you can use SimpleX with your own servers and still communicate with people using the servers that are pre-configured in the apps or any other SimpleX servers. You can connect to anybody you know via link or scan QR code (in the video call or in person) and start sending messages instantly - no emails, phone numbers or passwords needed. Your profile and contacts are only stored in the app on your device - our servers do not have access to this information. All messages are end-to-end encrypted using open-source double-ratchet protocol; the messages are routed via our servers using open-source SimpleX Messaging Protocol. Please send us any questions via the app (connect to the team via settings!), email us or submit an issue on GitHub. Follow us on Mastodon (@simplex@mastodon.social), Twitter (@SimpleXChat) and Reddit (r/SimpleXChat) for the latest updates. Once you install SimpleX Chat, join the group of users via this link to share your ideas and feedback.
F-DroidGitHub
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Sipdroid
APK
A SIP (VOIP) client with video calling capabilities. Visit the website for more info. For optimal battery usage reserve a free VoIP PBX on pbxes.org, and manage your SIP trunks using a web browser.
F-DroidGitHub
SmsCode
APK
SmsCode is a non-xposed version of XposedSmsCode. It can recognize, parse SMS code and copy it to clipboard when a new message arrives, it can also auto-input SMS code.Attention: This module is suitable for AOSP ROM, it may not work well on other 3rd-party ROM.Features:Copy verification code to clipboard when a new message arrives.Show toast when a SMS verification code is copied.Show notification when code SMS parsed.Custom keywords about verification code message (regular expressions allowed).Custom SMS code match rules.Mark verification code SMS as read (experimental).Delete verification SMS when it been extracted successfully (experimental).Block code SMS message notification (experimental).Auto-input SMS code.Various theme color to choose.
GitHubIzzyOnDroid
SmsMatrix
APK
This app bridges all sms messages to matrix. For every (new) text conversation contact the bot will open a private 1:1 room and sends the incoming messages to that room. Any messages sent in that room by the matrix user will then be sent to the contact via SMS. As currently there is no end-to-end encryption implemented in this app, for privacy reasons it is preferable to use it with your own Matrix server. Your data-in-transit however will always be safe as they are encrypted using https over matrix -- provided the Matrix server is configured properly.
F-DroidGitHub
SmsReply
APK
SmsReply is an Android application that handles automatic SMS replies with customizable templates. Features: • Customizable reply templates for different situations • Automatic replies to incoming calls and messages • Multilingual support (English, German, Spanish, French, Hungarian, Polish, Russian, Chinese) • Starts automatically on boot and runs as a background service • Battery optimization handling for reliable operation • Simple and intuitive user interface The app allows users to set up automated responses for SMS messages and incoming calls, making it easier to manage communication when you're busy or unavailable. Perfect for situations when you can't immediately respond but want to let people know you'll get back to them. Permissions required: • READ_PHONE_STATE: To detect incoming calls • SEND_SMS: To send automatic replies • RECEIVE_BOOT_COMPLETED: To start service on device boot • FOREGROUND_SERVICE: To run reliably in background
F-DroidGitHub
Spam Call Blocker
APK
Call Blocker App helps you manage and block unwanted incoming calls while maintaining a whitelist of approved contacts. It uses web scraping to enhance the call-blocking experience by integrating real-time data from popular spam-detection Spanish websites.Features:Block and Unblock Numbers: Easily block or unblock specific phone numbers.Whitelist Management: Maintain a whitelist of phone numbers that are always allowed to reach you.Web-Based Number Lookup: Automatically look up phone numbers using two trusted Spanish websites:www.listaspam.comwww.responderono.esReal-Time Web Scraping: Leverage web scraping techniques to gather real-time information on whether a number should be blocked.How It WorksThe app uses the JSoup library for web scraping, which allows it to retrieve and parse HTML data from www.listaspam.com and www.responderono.es. This data is then processed to determine whether an incoming call should be blocked or not.Data ManagementExport: Users can export all their preferences, including settings and black/white lists of numbers, to a file for backup or transfer to another device.Import: Previously exported data can be imported, allowing users to quickly set up the app on a new device or restore settings after a reset.Privacy and SecurityThis app is designed with user privacy in mind. All data is stored locally on the device, and the app only accesses the internet to perform web scraping for number lookup. No personal data is shared with external servers.
GitHubIzzyOnDroid
SpamBlocker (Call & SMS)
APK
It blocks unwanted calls & SMS messages without replacing your default call/SMS app. Filters: 1. Regex rule for number & SMS content. 2. Contact 3. STIR attestation 4. Repeated call 5. Dialed number 6. Recently used apps 7. Time schedule Details: https://github.com/aj3423/SpamBlocker
F-DroidGitHub
Streak Alarm for Snapchat (Streak Reminder)
APK
Reminds you to keep streaks by firing notification at user-defined intervals. Only works if you have friends. This is my first app project! Features: * Custom reminder interval from 1 to 22 hours * Notification stays until streaks are sent so you won't miss it * Snooze reminder for custom amount of time * Mark streaks sent (also directly in notification) * Mark streaks sent some time earlier * Open Snapchat (also in notification) * Automatically disable notifications if ignored for long time * Drop me an email if you have any suggestions!
F-DroidGitHub
TAC Database Client
APK
This project aims to provide a publicly, community-maintained, and well-organized database to collect Type Allocation Codes (TACs). While other databases exist, they either don't provide the full data set (e.g. by providing a query interface with rate limiting) or are not maintained in a way that we consider helps the community (submission process cumbersome, data not cleaned/sanitized,...). What is a TAC? A Type Allocation Code (TAC) is made up by the first 8 digits of the so-called International Mobile Station Equipment Identity (IMEI) associated with mobile devices. Earlier versions of the 3GPP TS 03.03 specification defined it as 6 bytes. The TAC is a unique identifier to determine the device manufacturer/model and its marketing name. These records are allocated by certain groups and a full list of all IMEIs is maintained by the GSMA.
F-Droid
Text Torch
APK
Text Torch analyzes your SMS and MMS messages and tells you how you compare to each person you message in several ways: • what percent of the time each of you starts conversations with the other • what percent of the texts each of you has sent • how the average length of your texts compares to theirs Sentry is used (opt-in) for analytics and crash reporting. Permissions: • READ_SMS to get SMS and MMS message data • READ_CONTACTS to display contacts' names • INTERNET and ACCESS_NETWORK_STATE for Sentry
F-DroidGitHub
T
ThreatScoopOnionChat
APK
# ThreadScoopOnionChat This version is a fork from " https://github.com/session-foundation/session-android ", enfocado en la privacidad. ## How Did ThreadScoopOnionChat Come About? I have always been a fan of privacy and security in communications, and I am constantly researching potential security breaches in messaging applications. ThreadScoopOnionChat emerged after the analysis of this blog "https://soatok.blog/2025/01/14/dont-use-session-signal-fork/", in which several aspects are described as to why using Session is not recommended, and I wondered how it is possible that a foundation focused on privacy—with the grants and support it receives—has not been able to improve this protocol. I still do not understand the answer, since my resources are much smaller than those of a foundation compared to that of a person who is simply a fan of privacy and security. In this blog, certain problems were described: 1> "https://soatok.blog/2025/01/14/dont-use-session-signal-fork/#insufficient-entropy-ed25519" 2> "https://soatok.blog/2025/01/14/dont-use-session-signal-fork/#in-band-negotiation" 3> "https://soatok.blog/2025/01/14/dont-use-session-signal-fork/#public-keys-aes-gcm" This is a forked version privacy focussed from Session. Go Github to check all features implemented.
F-DroidGitHub
Vibe
APK
Tiny app to vibrate when a call is answered and/or has ended. Tested: * Phone (com.android.dialer) * Google Phone (com.google.android.dialer) Permissions: * NOTIFICATION_LISTENER - scan for a call answer or end * VIBRATE - notify when a call is answered or has ended It is Free Open Source Software. License: GPL-3
F-DroidGitHub