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5170 apps · feature
Complica4
APK
Complica4 is a modified version for four players of the game Complica, which is similar to the game Connect Four. In Complica (not like in Connect Four), when a piece is placed, it does not remain there for the entire game. Another piece may be used to slide the entire row over. Winner is first person to have 4 pieces in a row. The mechanic of the sliding rows means that each player can possibly have 4 in a row at the same time, causing the game to continue until this situation can be broken up.
F-DroidGitHub
Compose Stopwatch
APK
Android stopwatch app in the Material You theme, designed for ease of use and best features ► New Stopwatch Settings • Enable Auto Start 3 seconds after app launch with override option • Enable vibration for better tactile sensation • Select action when you tap on the clock ► Circular progress • Displays the progress of the current lap based on the very first one • A dash on the lap progress shows the previous lap ► Change theme, new themes are available • Dynamic theme is only available with android 12+ • Extra Dark theme saves charging for Amoled screen ► Change orientation • Portrait mode has more space for laps • In Landscape mode, time text is larger ► Select an action when you tap on the clock that shows the time • Resume or pause • Resume or add lap • Resume or pause • If you don't want to do this, you can remove the action ► Switching notifications on/off • Stopwatch control in notifications • When switched off, the stopwatch works on ViewModel and DataStore • When enabled, the stopwatch works on LifecycleService and ForegroundService ► Screen Awake mode • Ability to watch the stopwatch without the screen falling asleep
F-DroidGitHubIzzyOnDroid
Compound Calculator
APK
Compound Interest Calculator helps people estimate how savings or investments may grow over time. It uses a guided three-step flow: * Enter the money you have now, what you add each month, and the currency symbol to display. * Choose how long the money can grow, an estimated yearly interest rate, and how often interest is added. * Review the ending balance, total money added, interest earned, an interactive graph, and a year-by-year breakdown. The app is designed for people who are not comfortable with financial jargon. It uses plain labels such as "You added" and "Your money earned" to make the result easier to understand. Privacy: * No ads * No analytics * No tracking * No Google services * No network permission * No exchange-rate downloads This calculator is an estimate, not financial advice.
F-DroidGitHub
Compressor
APK
Compressor is a lightning fast, ad free, super lightweight native video compressorUnlike other apps that use slow, bulky, old versions of FFmpeg with software encoding, Compressor uses Android's native Media3 Hardware Acceleration to process video faster than any other app.Features:Faster than every single compression app on the Play Store. Period.Uses native Media3 library, not another slow, bulky FFMpeg wrapperNo third party librariesNo invasive permissions (no storage, no internet etc)Ad freeSuper lightweight (< 10MB)Completely native Kotlin (no React Native slop here)Simple, clean UIWorks on Android 7.0 and up (Galaxy S6, Pixel 1, Nexus 5X, Moto G4 etc).Why does this exist?Most compressors are wrappers around old software filled with ads. Compressor is written in 100% Kotlin, designed to be the cleanest, fastest tool for the job.Benchmarks (200MB 4K video with Medium Preset)Pixel 8 Pro: 11s 61msGalaxy S25: 7s 99msGalaxy S10 (Exynos): 11s 27msGalaxy S8+ (Exynos): 20s 79msGalaxy S7 (Exynos): 25s 35ms
GitHubIzzyOnDroid
Computational Demonology
APK
Computational Demonology is the science of using math and algorithms to interact with the fundamental fabric of reality, particularly the borders between universes. This app implements some of the more beneficial algorithms for use against the not-so-beneficial ones. Though in the "Games" category, this is actually a highly sophisticated algorithmic arsenal for use in the field. See the website for more.
F-DroidGitHub
Conceal
APK
Useful for hiding wave audio data inside the least significant bits of an image. The resulting image can be shared in social media and the received images can be parsed by this app.
F-DroidGitHub
Conceal Authenticator
APK
Conceal Authenticator - The First Decentralized 2FA App 🔐 SECURE 2FA AUTHENTICATOR Generate TOTP codes for all your accounts with military-grade encryption and biometric security. • HMAC-SHA1 (standard) • HMAC-SHA256 • HMAC-SHA512 • Period: 30 or 60 seconds • Digits: 6, 7, or 8 🚀 WORLD'S FIRST DECENTRALIZED 2FA BACKUP • Permissionless - No registration or approval needed • Automatic - Your keys are backed up to the blockchain automatically • Decentralized - No single point of failure, no central server Nobody has done this before. This is what decentralization is meant for. ✨ FLEXIBLE OPTIONS • Local-only mode - Use as a standard 2FA app • Manual backup - Export when needed • Automatic blockchain backup - Your keys saved securely on-chain 📦 BUILT-IN WALLET Seamless blockchain integration. Recover your 2FA keys with your wallet seed - no third-party servers. 🛡️ PRIVACY & SECURITY • Self-custody - You own your keys • Biometric security - Fingerprint and face recognition • No central authority - Direct blockchain interaction • Offline capable - Works without internet 👥 SHARE WITH TRUSTED CONTACTS • Share your 2FA keys with significant other or family using whitelisted payment IDs. (Blockchain can broadcast 2FA code to trusted recipients via auto-destruct messaging) 🎨 FEATURES • Multiple themes (Light, Orange, Velvet, Pink, Dark) • Future codes preview • Custom blockchain nodes • QR code scanning • Backup encrypted secret shared key on your blockchain 2FA dedicated wallet. 💡 HOW IT WORKS 1. Add 2FA accounts by scanning QR codes 2. Generate secure codes anytime 3. Your keys are backed up to the blockchain 4. Recover with your wallet seed Powered by the Conceal Network blockchain. (New to crypto? Visit conceal.network to get started.) ⚠️ IMPORTANT: Always backup your recovery seed. Self-custody means you're responsible for your keys.
F-DroidGitHub
Conceal Mobile
APK
Conceal Mobile is the official mobile wallet for the Conceal Network blockchain, providing a secure and private way to manage your CCX cryptocurrency. FEATURES: • Create and manage Conceal wallet with industry-standard encryption • Send and receive CCX transactions with real-time network confirmation • QR code scanning for quick and easy import • Secure wallet encryption with military-grade algorithms • Complete transaction history with detailed information • Real-time network status monitoring and synchronization • Privacy-focused design that respects your anonymity • Encrypted messaging system for secure communications • Deposit and withdraw (Conceal Earn) in direct interaction with the blockchain • Multi-language support for global accessibility SECURITY & PRIVACY: - Secure key generation and storage - No personal data collection or tracking - Open source code that's auditable and transparent - Regular security updates and patches - Cold storage support for maximum security CONCEAL NETWORK: Conceal Network is a privacy-focused blockchain platform that provides secure, private, and decentralized financial services. Built on advanced cryptography, it ensures your transactions remain confidential while maintaining full transparency of the blockchain itself. WHY CHOOSE CONCEAL MOBILE: • Official wallet with direct network integration • User-friendly interface designed for both beginners and experts • Regular updates with new features and improvements • Active community support and development • Cross-platform compatibility • Lightweight and fast performance Download Conceal Mobile today and experience the future of private, decentralized finance. Join thousands of users who trust Conceal Network for their cryptocurrency needs. For support and updates, visit: https://conceal.network
F-DroidGitHub
Concert Diary
APK
Concert Diary is a simple Android app for recording your concerts and festivals as personal diary entries. --- You can: • Store events with date, location, acts and setlists • Add personal notes and ratings for each event • Attach photos and videos from concerts and festivals • Keep an overview of attended events and artists seen • Manage upcoming events and attach ticket PDFs for quick access --- Automatically fetch artist images via the Deezer API (disabled by default; enable in settings) All data is stored locally on the device using Room. The app is available in English and German. Export and import of database supported. --- Known issue: • Occasionally, theme colors display incorrectly. Toggling the theme off and on again fixes it.
F-Droid
Concurseiro
APK
Comapanion app for studying.
F-DroidGitHub
Conduit
APK
Conduit is a local-first terminal workspace for SSH, Mosh, SFTP, and local shells. It is built for people who need terminals from a phone without creating an account, syncing credentials through a service, or paying a subscription to open a shell. Connect to remote machines over SSH or Mosh, browse files with SFTP, or run a full Arch Linux shell right on the device - pacman and all - with no root and no remote server. Features: * SSH terminal sessions * Local Arch Linux shell on-device (Android, arm64) with pacman, running unprivileged through proot - no root, no server; downloads an Arch Linux ARM image on first use * Mosh roaming for unreliable mobile networks * Tmux auto attach/create per host, with start directories, prefix keys, action shortcuts, and scrollback mode * SFTP file browsing and export * Import SSH private keys from a file, or generate an Ed25519 key on device * Optional passphrase encryption for generated keys, with public-key copy and export * OpenSSH FIDO hardware-key authentication, tested with YubiKey * External authentication that lets the SSH server authenticate you without saved credentials * USB and NFC support for CTAP-compatible security keys * Saved machine profiles with tags, search, and sorting by last connected, name, or date added * Local credential and trusted host key storage * Trusted host key prompts and key management * App lock with device authentication when supported * Tabbed terminal workspace * Customizable key row with modifier, navigation, and function keys, key repeat, latching modifiers, and your own text and control-key shortcuts * Fullscreen terminal mode * Terminal themes * Background keepalive through a foreground service Conduit does not require a Conduit account and does not use a Conduit sync service. Saved connection profiles, credentials, and trusted host keys are stored on device using platform secure storage. Mosh support requires mosh-server on the remote host and reachable UDP ports. Predictive echo is experimental and opt-in. The local Arch Linux shell uses tooling packaged by Termux, including proot, proot-distro, busybox, tar, xz, and supporting libraries. Conduit's own source is Apache-2.0; bundled third-party components keep their own licenses. Source-offer details are in THIRD_PARTY_NOTICES and third_party/source-offer.
F-DroidGitHub
Connect You
APK
Connect You is a Contacts/SMS app built with Material Design 3 (You). It supports all the common features such as creating, modifying and deleting contacts as well as phone numbers, emails, addresses and events. Connect You uses the Android system's contacts API, thus all your contacts are in sync with your OS and usable in other apps as a dialer or messenger. Additionally, Connect You supports sending, receiving and deleting SMS messages and threads. MMS are not supported however.
F-DroidGitHub
ConnectBot
APK
ConnectBot is a secure shell client for Android that lets you connect to remote servers over a cryptographically secure link. Use ConnectBot to manage SSH sessions from your phone or tablet, keep connections active while you switch apps, and work with the terminal tools you already use. It supports saved hosts, SSH public key authentication, port forwarding, terminal color schemes, custom fonts, and other settings for tailoring each connection. The F-Droid build uses the open-source ConnectBot flavor. It includes the cryptography provider in the APK and does not depend on Google Play Services.
F-DroidGitHub
Conscrypt Provider
APK
Conscrypt Provider is an APK which can provide the Conscrypt Library to apps that support older Android devices. The Conscrypt Library provides modern TLS capabilities and ciphers, including TLS 1.3, and supports all the way back to Android 2.3 Gingerbread! I have wrapped it in a standalone APK because not all users will need it (Android 10+ has TLS 1.3 enabled), and because the library is quite large. Users: will need to install this app. It does not appear in the app drawer as it has no interface. App Developers: will need to add code to their apps to make use of this provider. For instructions on how to do this, see the README: https://github.com/mendhak/Conscrypt-Provider --- I have made use of the F-Droid blog post and an associated gist. This may not be the best or perfect way to provide Conscrypt to applications, but it's a way that works for me. I'm putting it on F-Droid in case it benefits others too.
F-DroidGitHub
ConsoleFlow
APK
ConsoleFlow is a developer-focused Android browser built on WebView. It automatically injects Eruda — a mobile-friendly JavaScript console — into every page you visit, so you can inspect elements, debug scripts, view network requests, and catch errors directly on your device without needing a desktop. Features: - Automatic Eruda console injection on all pages - Custom JavaScript injection per session - Desktop mode (switches User-Agent to Chrome desktop) - Bookmarks and browsing history - Find in page - Multiple search engines: Google, DuckDuckGo, Bing, Brave - Dark theme throughout - Download manager integration - No telemetry, no tracking, no ads
F-DroidGitHub
Constellations
APK
Star charts and data of the 88 modern constellations, based on data by Wikipedia.
F-DroidGitHub
Contact Diary
APK
Contact Diary is a simple app that allows you to keep a record of the people you have met and the events you have attended to recently. In the undesired event that you test positive for COVID-19, Contact Diary is a place where to quickly find who you must warn about the situation. How it works Every day Contact Diary will prompt you to insert the events you have attended and the people you have been with during the day. Through some simple forms you will be able to store the essential information about your contacts, in case you need to retrieve it. Just that. Simple, right? ;) Features Configurable notification time, so the prompt does not interfere with your daily workflow. Show only potentially risky contacts. Automatic removal of entries older than 15 days. Export your latest contacts to a CSV file that you can share with the authorities. JUST ONE PERMISSION, that needed for the app being able to notify you after device restarts. Nothing else. In particular, NO INTERNET permission. The information entered is yours, and it never leaves your device. FAQ - Wait, isn't this what Governments' contact tracing apps are doing? No. The goals of Governments' contact tracing apps and of Contact Diary are inherently different. Governments' contact tracing apps notify you when you have been at risk, and Contact Diary serves to remember who you must notify if you test positive. - Is this app BETTER than Governments' contact tracing apps? No. Governments' contact tracing apps may account for contacts that you may not be aware of, like the person sitting in a neighboring table at a restaurant, or that other person using the same bus to go to work. Contact Diary IS NOT A REPLACEMENT TO GOVERNMENTS' CONTACT TRACING APPS. - Is this app WORSE than Governments' contact tracing apps? No. Government's contact tracing apps crucially rely on all persons interacting to have the app in order to do proper notifications. With Contact Diary, you just need yourself to keep track, and you can easily notify people (or places) that do not use conventional contact tracing apps. - Will this app share the information I input? NO. The app has no permissions, so there is no way that it can connect to the internet. The information you insert will never leave your device. Even more, entries in the diary are automatically eliminated when they become older than 15 days. Support If you find a bug, have an idea on how to improve Contact Diary or have a question, please visit the Contact Diary project page on GitHub: https://github.com/apozas/contactdiary
F-DroidGitHub
Contact Owner
APK
Contact Owner is displays your (or a friend's) contact information on the "lock screen" of your device, so that if you happen to lose it the finder will know how to contact you. Select yourself (or your friend) from your list of contacts, then select which information you want shown and (optionally) customize your message. Contact Owner is a "fire and forget" tool: once you set it up, your contact information will keep being displayed even after restarting your device, as long as the application is installed.
F-Droid
Contacts
APK
Contacts Organised by Group: • Select any Android account • Fast view by groups • Large Text • Launch Contacts App
F-DroidGitHub
Contacts Import
APK
Import your CSV contacts from your favourite desktop client without any cloud syncing. Multi-language fully supported including all common localised codepages (from US & Westen Europe to Eastern Europe to China and Japan) and also UTF, so you get your contact information exactly how it should be on the phone. Import contacts from Excel CSV files with over 100 field mappings available. Popular address books formats fully supported to easily get your contacts from Microsoft Outlook and other applications onto your phone. Even has custom mapping features to give you full control over which contact fields you want to import on your phone Your imported Android contacts are kept on your phone and never synced with any Cloud service ever. With this app you will never have to give your contacts to Google, Yahoo, or any other Cloud service again. No need to install any sync bloatware programs on your PC. Your contacts will remain confidential to you. Note this is a one way import from your authorative CSV file. Contacts are imported onto a new account "My Contacts"|owned by the app. If you uninstall the app this account and contacts contained within it will be deleted. The idea is you leave the app on the phone, it does not run or use any resources when not being used. And use the app again to reimport the CSV when it changes. It is also recommended that you take backups and exports, and save outide the app.
F-DroidGitHub
Content Provider Helper
APK
This helper is a frontend to query installed content providers. Android's content providers are similar to database tables.: They have a name (aka "content:" uri), columns and they can be queried similar to SQL. Android uses content-providers as API to manage global accessable data (i.e. images, address book, text messages, ...). Forked from jenzz-s ContentProviderHelper which is not maintained anymore. App permissions are set generously to provide maximum compatibility.
F-DroidGitHub
C
Control D
Web
Customizable DNS service that blocks ads, trackers, and malware at the DNS level.
Controller for QLC+
APK
This is a 3rd party Android app built to emulate some features from the QLC+ web interface but on a native phone/tablet application. It uses a WebSocket connection exposed by QLC+ desktop software (when enabled) to read and write channel changes, function status and DMX keypad data from the host. The app is built to be very versatile in preferences because it supports many extended features. The UI is built using Google's material framework and Jetpack compose. Theming is synced with the phone itself, drawing accent colors from whatever "Material You" settings you have enabled globaly. Please be aware that this is not an official QLC+ app and it only works for v4.
F-DroidGitHub
Controlloid
APK
Controlloid is a small open source application that turns your phone into a real game controller for your PC. It works on Linux and Windows and can connect through anything that allows the creation of a LAN network: WiFi, Bluetooth, USB etc. It works over internet too, but for optimal performance it is recommended to create a hotspot on your PC and disable other network connections (such as wired) which allows the connected devices to access the internet. The server application can be downloaded from the following link: ➤ https://github.com/experiment322/controlloid-server Features • All the buttons of a PS2 controller (except L3 and R3) • Supports multiple clients (limited to 16 on Windows) • Analog stick dead zone (set from Preferences) • Scan and connect instantly to LAN servers • Move, resize and overlap buttons in layout editor • Creation of multiple layouts to accommodate different games • More to come! (suggestions welcome on GitHub)
F-DroidGitHub