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5118 apps · feature

SMBSync2
APK
SMBSync2 is a tool for synchronizing files via wireless LAN using SMB1, SMB2 or SMB3 protocol between the internal storage of Android terminal, SDCARD and PC/NAS. Synchronization is a one-way from the master to the target, mirror, move, copy, archive can be used. (Internal storage, SDCARD, SMB, ZIP combination is possible).A start of the sync can be done by external application (Tasker, AutoMagic etc) or SMBSync2 schedule.Mirror: If master and target files are different, to copied files from master to the target directory. To delete target files and directories if does not exist in the master.Move: If master and target files are different, to copied files from master to the target directory. To delete the master directories and files copied to the target.However, the master and target same name, same file modification time and file size, to delete the file on the master without copying files.Copy: If master and target files are different, to copied files from master to the target directory. However, the same file modification time and file size with the same name does not copy the master and target.Archive: Move photos and videos in the directory on the master side to the target under conditions such as shooting date/time than the date and time of archive execution, such as 7 days or earlier or 30 days or earlier. (However, ZIP can not be used for target)
GitHubIzzyOnDroid
SMS Filter
APK
SMS Filter can filter incoming SMS messages before they reach your inbox. You can filter by address, and optionally add parts that must occur in the message for it to be blocked. By default, SMS Filter will not delete incoming messages. You will get a silent status bar notification when SMS Filter has filtered an incoming message, which you can view by opening the notification or by opening the application. You can also tell SMS Filter to delete incoming messages, in which case it will happily do so for you. To do this, just turn off the 'Save messages' preference.
F-Droid
SMS Forward
APK
Transfer texts easily With this app, you an receive your SMS on all your devices. Bypass regional restrictions If a service in country A requires a phone number from country A, but your phone number is from country B. You ask a friend from country A to install this app and you will be able to receive SMS from the service in country B. However, since this is a pretty simple application, it can also serve other purposes. Features: - Can handle multiple redirections - Global activation toggle SMS Forward is free, open source and without ads. Warning: If someone is asking you to install SMS Forward, be careful: this could be a scam.
F-Droid
S
SMS Forwarding
APK
SMS Forwarding listens for incoming SMS text messages and conditionally forwards them to other numbers.
GitHubIzzyOnDroid
SMS Import / Export
APK
SMS Import / Export imports and exports SMS and MMS messages, call logs, contacts, and blocked numbers from and to (ND)JSON / ZIP files. (Contacts import and export are currently functional but considered experimental.) It does not require root. The primary author of SMS Import / Export is Thomas More. Others have contributed code and translations. The software is copyright 2021-2026, and is released under the GNU General Public License version 3 or later. SMS Import / Export is a sibling project to sms-db, a Linux tool to build an SQLite database out of collections of SMS and MMS messages in various formats. sms-db will hopefully eventually be able to import ZIP files created by SMS Import / Export, and to export its database to ZIP files that can be imported by SMS Import / Export.
F-DroidGitHubIzzyOnDroid
SMS Scheduler
APK
This app is for you if: * You keep forgetting to send a birthday sms to someone * You have that friend who doesn't seem to know what an alarm is
F-DroidGitHub
SMS Shield
APK
SMS Shield is a default SMS app focused on private, rule-based message filtering.It supports keyword, sender, number, wildcard, and country-based block and allow rules, including Unicode and non-ASCII SMS content. Blocked messages are suppressed from regular notifications and kept in a dedicated blocked folder.Messages can be searched, archived, returned to the inbox, deleted, grouped into chats, filtered by sent or received status, and marked to skip automatic archiving. Manual block overrides help recover false positives without changing the whole rule set.The app also includes OTP copy support, local JSON import and export, dual-SIM send options, SIM indicators, delivery reports, and light, dark, and AMOLED themes with selectable accent colors.SMS Shield does not use any web services or data connectivity at all. No cloud spam detection, no advertising SDKs, no analytics SDKs, no Firebase, no Google Play Services, no AI services. Pure rule-based on-device handling.
GitHubIzzyOnDroid
SMS my GPS
APK
SMS my GPS listens for incoming SMS text/data messages and conditionally sends an automatic reply containing GPS location data. The „trigger-word“ and white-listed sender phone number can be configured in the app.
GitHubIzzyOnDroid
SMS to URL Forwarder
APK
Incoming SMS to URL forwarder will forward incoming SMS to a URL you specify: Set sender phone number or name and URL. It should match the number or name you see in the SMS messenger app. If you want to send any SMS to URL, use * (asterisk symbol) as a name. Every incoming SMS will be sent immediately to the provided URL. If the response code is not 2XX or the request ended with a connection error, the app will try to send again up to 10 times. The first retry will be after 10 seconds, later wait time will increase exponentially. If the phone is not connected to the internet, the app will wait for the connection before the next attempt. Optional extras: match senders with a regular expression, filter by message text, sign requests with HMAC-SHA-256, keep messages that failed to deliver for a manual retry, send a periodic heartbeat ping for monitoring, forward to local-network endpoints without internet, and back up / restore your forwarding rules as a JSON file.
F-DroidGitHub
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
SOS Alerter
APK
SOS Alerter is a modern, privacy-focused emergency assistance application designed to keep you safe when it matters most. It operates entirely offline, storing all user credentials, contacts, and captured media locally on your device. Key Features: * Emergency SMS & Call Alerts: Instantly send custom emergency SMS messages with high-accuracy GPS coordinates and auto-dial your designated contact or emergency services. * Continuous GPS Tracking: Keep contacts updated with periodic location sharing. * Discreet Evidence Gathering: Silently capture photos using front and back cameras, and record ambient audio during an active emergency. * Versatile Activation Triggers: Trigger an alert via a triple-press of the power button, shaking the device, voice commands ("Help Me"), or a long press on the main screen button. * Loud Siren & Strobe: Activate a loud siren and strobe light to grab nearby attention. * No Trackers or Ads: Free and open-source under GPLv3, with absolutely no telemetry, analytics, or third-party connections.
F-DroidGitHub
SOS Flashlight: Advanced Morse Code Tool
APK
SOS Flashlight App transforms your smartphone into a powerful Morse code signaling device, capable of transmitting emergency messages or custom text through multiple channels simultaneously. Features - Signal Transmission Methods - Flashlight: Utilizes your device's camera led flashlight to transmit visual signals. - Vibration: Sends tactile signals through device vibration. - Audio: Generates clear audio tones at 700Hz frequency. - Screen Light: Maximizes screen brightness to create visual signals in darkness. - Core Capabilities - Background Service: Continue signaling even when the app is minimized or screen is locked. - Message Customization: Send any custom message in Morse code. - Adjustable Speed: Choose from slow, medium, fast, or custom transmission speeds. - Morse Code Decoder: Convert received Morse code into readable text. - User Preferences: Independently toggle each signaling method based on your needs. Usage - Emergency SOS: Press the SOS button to immediately begin transmitting the international SOS signal (... --- ...). - Custom Message: Enter your text in the input field and press "Send" to convert and transmit. - Decoder: Navigate to the decoder screen to translate incoming Morse code signals. - Settings: Customize transmission speed and toggle different signaling methods. Contribute Contributions are welcome! Feel free to open issues or submit pull requests on our GitHub repo. License This project is licensed under the GNU General Public License (GPLv3) - see the LICENSE file for details. Source https://github.com/WeilJimmer/SOSFlashlightApp.git
F-DroidGitHubIzzyOnDroid
SOS Ring
APK
SOS Ring forces your phone to ring at full volume when you receive a call from a VIP contact, even if your phone is in Silent, Vibrate, or Do Not Disturb mode. Perfect for families where someone always keeps their phone on silent but needs to be reachable in emergencies. HOW IT WORKS: • Add your VIP contacts (family, partner, etc.) • Enable the monitoring service • When a VIP contact calls, SOS Ring overrides Silent/DND mode, plays the ringtone at your chosen volume (50-100%), and vibrates • After the call ends (answered, missed, or rejected), your phone is restored to its original state — silent mode, DND, volumes, everything WHY THIS APP EXISTS: Android 14+ removed per-contact DND exceptions. No built-in way exists to let specific contacts bypass silent mode. Google restricts READ_CALL_LOG on the Play Store, so this type of app can't be published there. SOS Ring is free, open source, and works where others can't. FEATURES: • Pick VIP contacts from your phonebook or enter manually • Configurable override volume (50-100%) • Works in Silent, Vibrate, AND Do Not Disturb mode • Full state restore after call (including alarm volume) • Survives phone reboots (auto-start) • Minimal battery usage (event-driven, no polling) • Dark mode support • No ads or tracking LOCATION SHARING (optional, peer-to-peer): • No SOS Ring server required — you pick a UnifiedPush distributor app (e.g. ntfy on F-Droid); it relays only encrypted data • End-to-end encrypted using Web Push encryption; the distributor never sees your location • Each message is signed with a per-device key in the Android Keystore, so the recipient can verify the sender • Pairing is explicit via QR code — no automatic connections • Location sharing is off by default per contact; you control who can see your location • Live tracking streams your position roughly every 10 seconds for a chosen duration, shown on an OpenStreetMap map in the app • Tracked path is saved locally on the requester's device only — no data leaves without your explicit action • No server, no analytics, no tracking PERMISSIONS EXPLAINED: • Phone State & Call Log: detect incoming calls and identify the caller • Contacts: pick VIP contacts from your phonebook • Do Not Disturb access: override DND when a VIP calls • Notifications: show a small persistent notification while monitoring • Location (including background): used only to answer location requests from paired contacts you explicitly authorized, even while the app is not on screen; nothing is collected or sent otherwise SOURCE CODE: https://github.com/JackRushante/SOSRing
F-DroidGitHub
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SPAYD Decoder
APK
Native Android app that decodes Czech SPAYD (Short Payment Descriptor) payment QR codes. Works fully offline; no data leaves the device. Features: * Scan QR codes with the camera * Share images or text into the app via the system Share Sheet (gallery, screenshots, browser) * Pick an image from storage * Open spayd: URIs * Parser derives the Czech account number from the IBAN * One-tap copy for every field * Material 3 with dynamic colors (Android 12+) and dark mode Built on CameraX and zxing-cpp for QR decoding — no proprietary Google dependencies.
F-DroidGitHub
SQLiteViewer
APK
SQLiteViewer allows to view and export as csv SQLite databases used by android apps or any SQLite databases with ease and simplicity. Features: * Open any SQLite database using the built in file browser * Open database of any app from the root filesystem (Requires root) * Export SQLite database to csv (Beware of the huge row count) * Supports custom query! Run any sqlite query on the selected databases. Subqueries, limit, order by, you name it, the app supports it. Permissions Explained: * READ_EXTERNAL_STORAGE, WRITE_EXTERNAL_STORAGE - For opening databases from storage or writing exported csv file AntiFeatures: Tracking - Even if analytics/crash submission is toggled off, the app still submits data to the developers servers.
F-Droid
SQRL Login
APK
This app is an implementation for SQRL (Secure Quick Reliable Login) on Android. Before you begin using SQRL to login to websites, your SQRL private identity must be created. You only need one, probably for life, because it reveals NOTHING about you, and it's highly secure. It's just a very long (77-digit) random number. From then on, whenever you login with SQRL to a website, your private identity is used to generate another 77-digit number for that one website. Every website you visit sees you as a different number, yet every time you return to the same site, that site's unique number is regenerated. This allows you to be uniquely and permanently identified, yet completely anonymous. Since you never need to use an eMail address or a password, you never give a website your actual identity to protect. If the website's SQRL identities are ever stolen, not only would the stolen identities only be valid for that one website, but SQRL's cryptography prevents impersonation using stolen identities. This is as good as it sounds. It's what we've been waiting for.
F-DroidGitHub
SSH Remote
APK
Requirements: - The device you want to control must be running an SSH server. - A program that allows control, such as ydotool, xdotool, wtype, etc., must be installed. Features: - Fully configurable. You can modify the commands that each button run when pressed. - Excellent mouse and keyboard support. - Supports SSH keys, certificates, and host key verification for a secure connection. - Sensitive data like passwords and SSH keys are securely encrypted. - No ads. No tracking or telemetry. No network requests except for the SSH connection.
F-DroidGitHub
SSHBorg
APK
SSHBorg is a powerful SSH and SFTP client for Android. Manage your servers securely from your phone with key authentication, encrypted storage, and biometric lock. FEATURES • Full SSH Terminal — Interactive terminal with VT100/xterm emulation, full UTF-8 support, and multiple concurrent sessions. • SFTP File Manager — Browse, upload, download, rename, and delete files on your servers with an intuitive file manager. • SSH Key Auth — Generate Ed25519, ECDSA, and RSA keys directly on your device. No passwords needed. • Jump Host Support — Connect through one or more bastion hosts with transparent tunnelling. Full SSH agent forwarding. • Biometric Lock — Protect access to your servers with fingerprint or face unlock. Configurable timeout. • Multilingual — Available in English, Italian, French, German, Spanish, Portuguese, Ukrainian, Chinese, and Japanese. • Dark & Light Theme — Follows the system theme or let you choose. Fully readable in any lighting condition. • Multiple Sessions — Keep several SSH and SFTP sessions open simultaneously. Switch between them instantly. PRIVACY FIRST, BY DESIGN SSHBorg never collects your data. Everything stays on your device — your credentials, your keys, your connections. • No ads • No tracking • No cloud • Open source — GPL v3 • No third-party SDKs • Android Keystore encryption sshborg.com
F-DroidGitHub
SSTV Encoder
APK
Modes Supported SSTV modes: Martin Modes: Martin 1, Martin 2 PD Modes: PD 50, PD 90, PD 120, PD 160, PD 180, PD 240, PD 290 Robot Modes: Robot 36 Color, Robot 72 Color Scottie Modes: Scottie 1, Scottie 2, Scottie DX Wraase Modes: Wraase SC2 180 The mode specifications are taken from the Dayton Paper, JL Barber, "Proposal for SSTV Mode Specifications", 2000: http://www.barberdsp.com/downloads/Dayton%20Paper.pdf Image To load an image: tap "Take Picture" or "Pick Picture" menu button, or use the Share option of an app like e.g. Gallery. To keep the aspect ratio, black borders will be added if necessary. Original image can be resend using another mode without reloading. After image rotation or mode changing the image will be scaled to that mode's native size. After closing the app the loaded image will not be stored. Text Overlay Actions for working with text overlays: Single tap to add a text overlay. Single tap on text overlay to edit it. Long press to move text overlay. Remove the text to remove a text overlay. After closing the app all text overlays will be stored and reloaded when restarting. Menu Available menu options: "Play": Sends the image "Stop": Stops the current sending and empties the queue "Pick Picture": Opens an image viewer app to select a picture "Take Picture": Starts a camera app to take a picture "Save as WAVE File": Creates a wave file in the Music folder in SSTV Encoder album "Transform Image": "Rotate": Rotates the image by 90 degrees "Reset": Resets image rotation and scaling "Modes": Lists all supported modes
F-DroidGitHub
STARGW FX
APK
A free simple Foreign Exchange Rate Currency app. Clean interface, free rates and no adverts. Set Exchange rate Notifications and get alerts. 5 styles of widgets to chose from. Get 24hour rates FREE from the ECB or sign up for a FREE Open Exchange Rate account and receive hourly rates from more currencies.
F-DroidGitHub
SUD💜KU
APK
SUD💜KU is a free and open source Sudoku game that aims to be simple to play yet featureful and visually polished. Features Play Sudoku! Markup where numbers could go. Highlight numbers to better examine the board. Validate the current board to find mistakes. Smooth and sleek animations. Full theming support. Local leaderboard to track your best times per difficulty. Auto-save the game so you can pick back up where you left off. Fully Free and Open Source Software!
F-DroidGitHub
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SUSI.AI
APK
Susi AI is an intelligent Open Source personal assistant. It is fully customizable and developed by a community of developers. It is capable of chat and voice interaction by using APIS to perform actions such as music playback, making to-do lists, setting alarms, streaming podcasts, playing audiobooks, and providing weather, traffic, and other real-time information. Additional functionalities can be added as console services using external APIs. Susi AI is able to answer questions and depending on the context will ask for additional information in order to perform the desired outcome. The core of the assistant is the Susi AI server that holds the "intelligence" and "personality" of Susi AI. The Android and web applications make use of the APIs to access information from a hosted server.
F-DroidGitHub
SVG redirect
APK
By default Android can't handle SVG files, when you try to open them from a file manager. A Browser could handle SVG, but the most of them don't allow to call SVG files from a file manager. SVG redirect makes that possible.
F-Droid
SWJournal
APK
As a minimalistic workout tracker SWJ is designed for those who know what they want and who are concentrated on results. You will not find predefined description for routines or any other amateur targeted features here. It is similar to simple sheet of paper where you write down exercises with repetitions and sets you have performed. It consists of two synced lists: one for exercises you have performed, and the second for sets you have done. Also has the ability to write down a note for an exercise or set -- and here we are: Maximal informativity with minimum of interactions. Additionally you can create report for chosen exercise with graph and some stats.
F-DroidGitHub
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