Apps

OPEN NGA
APK
New Features Auto check in NG girl emoji Post emoji with bbcode From post to forum Most used emoji Adjust uploaded image width in posts Show rate Show vote Remark users
F-DroidGitHub
OPMT
APK
OPTM is an android board game that is similar to Mu Torere, a board game from New Zealand.
F-DroidGitHub
OPN2 MIDI Player
APK
OPN2 MIDI Player is an implementation of OPNMIDI based MIDI-player for Android. It’s a MIDI-player based on emulator of a Frequency Modulation chip Yamaha OPN2 (YM2612). This small MIDI-player made with using of libOPNMIDI library.Key Features:OPN2 emulationCustomizable bank of FM patches (You have to use the bank editor to create own sound bank)Stereo soundNumber of simulated OPN2 chips can be specified as 1-100 (maximum channels 600!)Pan (binary panning, i.e. left/right side on/off)Pitch-bender with adjustable rangeVibrato that responds to RPN/NRPN parametersSustain (a.k.a. Pedal hold) and Sostenuto enable/disableMIDI and RMI file supportReal-Time MIDI API supporMIDI and RMI file supportloopStart / loopEnd tag support (Final Fantasy VII)111-th controller based loop start (RPG-Maker)Use automatic arpeggio with chords to relieve channel pressureSupport for multiple concurrent MIDI synthesizers (per-track device/port select FF 09 message), can be used to overcome 16 channel limitPartial support for GS and XG standards (having more instruments than in one 128:128 GM set and ability to use multiple channels for percussion purposes, and a support for some GS/XG exclusive controllers)CC74 "Brightness" affects a modulator scale (to simulate frequency cut-off on WT synths)Portamento support (CC5, CC37, and CC65)SysEx support that supports some generic, GS, and XG featuresFull-panning stereo option (works for emulators only)
GitHubIzzyOnDroid
OPNsense Manager
APK
OPNsense Manager is a professional mobile application for managing OPNsense firewall routers. Monitor system status, manage firewall rules, view logs, control services, and manage your network security from your mobile device. FEATURES: 🔐 Authentication & Security • Secure API authentication with encrypted storage • Multiple profile management for different OPNsense instances • PIN lock with 4-6 digit code • Biometric authentication (Face ID, Touch ID, Fingerprint) • Auto-lock with configurable timeout • Platform-specific encrypted credential storage 📊 Dashboard • Real-time system overview (hostname, version, platform) • Live CPU and memory usage monitoring • Service management (start, stop, restart) • Gateway status monitoring • System uptime display • Pull-to-refresh and auto-refresh 🔥 Firewall Management • View, create, edit, and delete firewall rules • Toggle rules on/off with a single tap • Comprehensive rule configuration • Support for multiple interfaces and protocols • CIDR notation support 📋 Firewall Logs • Real-time log viewing • Filter by action (Pass, Block, Reject) • Search functionality • Detailed packet information • Auto-refresh with configurable intervals 🌐 Live Network Monitoring • Real-time network activity monitoring • Device discovery and connection tracking • Connection details (IPs, ports, protocols) • Device blocking capability • Search and filter options 📡 DHCP Lease Management • View active DHCP leases • Complete lease information • Device blocking from leases view • Search by IP, MAC, or hostname 🔧 VPN Management • OpenVPN connection management • Tailscale integration • WireGuard support • VPN status monitoring ℹ️ System Information • Firmware details and version • System status and uptime • Platform information • Repository details ⚙️ Settings • Light/dark theme toggle • PIN lock configuration • Biometric authentication setup • Session timeout configuration • Profile management • Multi-language support (English, Arabic, German, Spanish, French) REQUIREMENTS: • Android 5.0 (API 21) or higher • OPNsense 20.7 or higher with API access enabled • Network connectivity to OPNsense firewall PRIVACY: • No data collection or tracking • All data stored locally on device • No third-party services • Direct connection to your firewall only • Open source - verify our claims LICENSE: GNU General Public License v3.0
F-DroidGitHub
OSM Dashboard (Offline)
APK
Offline version of the OpenStreetMap dashboard for OpenTracks. Can be used as standalone GPX and location viewer as well. It shows a selected track with start- and endpoints on a map from OpenStreetMap based on the Mapsforge VTM library. This version only supports offline maps, which have to be downloaded manually. Join the OSM community and help to improve the map, see www.openstreetmap.org/fixthemap Some offline maps can be found here: - Mapsforge - Freizeitkarte Android - OpenAndroMaps Some maps require special themes to render correctly! These need to be downloaded and configured accordingly. Some browsers (e.g. Firefox) require a long click on the link and "Open link in external app" and then choose OSMDashboard. Manual downloaded offline maps or maps shared with other apps can be opened from your Android device. Select the directory in the menu "Map directory".
F-DroidIzzyOnDroid
OSM Dashboard for OpenTracks
APK
OpenStreetMap dashboard for OpenTracks. Can be used as standalone GPX and location viewer as well. It shows a selected track with start- and endpoints on a map from OpenStreetMap based on the Mapsforge VTM library. The default is an online map, but offline maps are supported as well. With offline maps, there is no necessity for a mobile data plan. The default map is provided by OpenStreetMap.org. Join the community and help to improve the map, see www.openstreetmap.org/fixthemap Please consider downloading an offline map to decrease the server load and save your mobile data plan. Some offline maps can be found here: - Mapsforge - Freizeitkarte Android - OpenAndroMaps Some maps require special themes to render correctly! These need to be downloaded and configured accordingly. Offline maps can be downloaded via the menu "Map download" or by visiting the above mentioned websites and click the download links. Some browsers (e.g. Firefox) require a long click on the link and "Open link in external app" and then choose OSMDashboard. Manual downloaded offline maps or maps shared with other apps can be opened from your Android device. Select the directory in the menu "Map directory".
F-DroidIzzyOnDroid
O
OSMBugs
APK
OSMBugs will show you Bugs on the various Bug reporting Platforms. Currently Supported: * Openstreetmap Notes * Osmose (Read Only) * Mapdust * Keepright
F-DroidGitHub
OSMTracker
APK
OSMTracker allows you to track your journey and mark significant way points. Way points can be marked with a tag using a button, with a quick voice record, a text note or by taking a picture. The various button pages and layouts can be customized to suit your OpenStreetMap activities. You can view your current track on top of an OpenStreetMap background.
F-DroidGitHub
OSMfocus Reborn
APK
OSMfocus Reborn is an open source tool for examining OpenStreetMap (OSM) elements by moving around on a map. Also known as OSM Focus Reborn or OpenStreetMap Focus Reborn. Move the crosshair in the middle of the map over a building or road to view its keys and values. A line will be drawn connecting the element with a box on the side of the screen. This box contains every tag of the element in OpenStreetMap. Use this information to find bugs or to investigate an area closer. Click on one of the boxes if you want even more detailed information. Change the basemap (background layer) or add your own by going to the settings screen (cog icon). Source, issue tracking and more info: https://github.com/ubipo/osmfocus Permissions: - "full network access": display background map, retrieve OSM data - "precise location": (optional) move the map to the device's current location Notices: OSMfocus allows you to view OpenStreetMap data. This data is © (Copyright) OpenStreetMap contributors and is available under the Open Database License. https://www.openstreetmap.org/copyright This app is a complete re-write of the now (07-11-2020) defunct OSMfocus by Network42 / MichaelVL ("Apache License 2.0" license.). https://play.google.com/store/apps/details?id=dk.network42.osmfocus https://github.com/MichaelVL/osm-focus
F-DroidGitHub
OSS Card Wallet
APK
OSS Card Wallet is a free and Open Source app to transform your mobile device into a powerful card scanner and walletSCAN * Scan your IDs, business cards, loyalty cards with a fast camera scan. * Enjoy the automatic edge detection feature allowing you to quickly scan many documents * Bulk scan to quickly add recto/verso * Import cards from images or even existing PDFBARCODE * automatic detection of barcodes, qrcodes... * manually create a card with a barcode * add as many barcodes as you want to a simple cardPASSBOOK * Full Passbook support * import from .pkpass * view your Passbooks as you would in the official Apple Passbook App * Export and share your passbooks as .pkpass or PDFENHANCE * Improve PDFs quality by applying enhancing filters for color or black & white cards. * Edit crop * Reorder pages, merge cards * Rotate pages * Change brightness and contrast to create beautiful cardsORGANIZE * Create folders with colors for easy access * Sort cards * Name cardsEXPORT * create PDF directly from your mobile device by converting photos, images, other documents, into beautiful and configurable PDFs. * export and share your cards to PDF or JPEG or PNG with your friends, family, colleaguesSEARCH * OCR your cards using offline (to be downloaded first) and open source models in many languages. * Generate searchable PDFs by converting images to text using the powerful OCR models from the Tesseract project.SECURITY * Improve the security of your generated PDF by adding a password.SYNC * Synchronize your cards, PDFs, Images with your computers, other devices or local folder sync. * Sync using WebDAV, Google Drive, OneDrivePRIVACY * Use a free and Open Source card wallet to protect your privacyCOMMUNITY * Provide feedback or even help translate the app. You are part of this project and you make help it grow so that everyone can enjoy the best free and open source card wallet
GitHubIzzyOnDroid
OSS Document Scanner
APK
The OSS Document Scanner is a free and Open Source app to transform your mobile device into a powerful document scanner. SCAN * Scan your documents or receipts with a fast camera scan. * Enjoy the automatic edge detection feature allowing you to quickly scan many documents * Bulk scan documents or book pages * Import documents from images or even existing PDF * You can scan to PDF any kind of document: Receipts, IDs, notes, recipes, photos, business cards, whiteboards, books. You can then use and work with the generated PDFs on all your devices, phones, computers, tablets... ENHANCE * Improve PDFs quality by applying enhancing filters for color or black & white documents. * Edit crop * Reorder pages, merge documents * Rotate pages * Change brightness and contrast to create beautiful documents ORGANIZE * Create folders with colors for easy access * Sort documents * Name documents EXPORT * create PDF directly from your mobile device by converting photos, images, other documents, into beautiful and configurable PDFs. * export and share your documents to PDF or JPEG or PNG with your friends, family, colleagues SEARCH * OCR your documents using offline (to be downloaded first) and open source models in many languages. * Generate searchable PDFs by converting images to text using the powerful OCR models from the Tesseract project. SECURITY * Improve the security of your generated PDF by adding a password. SYNC * Synchronize your documents, PDFs, Images with your computers, other devices or local folder sync. * Sync using WebDAV, Google Drive, OneDrive PRIVACY * Use a free and Open Source document scanner to protect your privacy COMMUNITY * Provide feedback or even help translate the app. You are part of this project and you make help it grow so that everyone can enjoy the best free and open source document scanner
GitHubIzzyOnDroid
OSS Tracker
APK
Android OSS Release Tracker lets you keep track of updates to Open Source Applications directly from their resp. repositories. The application uses the QUERY_ALL_PACKAGES permission in order to fetch the currently installed version of each app in the tracker to compare against. * Subscribe to Android OSS repositories (GitHub and GitLab) * Compare versions with what you have installed on the device * Opens new version in browser for you to install yourself
F-DroidGitHub
OSS Weather
APK
OSS Weather — a lightweight, privacy-first, open-source weather app for Android that gives you fast, clear, and trustworthy forecasts without tracking or ads.Key Android featuresLocal current conditions: temperature, feels‑like, humidity, wind (speed & direction), pressure, and visibility.Hourly, minutely and multi-day forecasts: interactive timelines with up to 48‑hour hourly data and 7–14 day daily summaries (provider dependent).Radar maps: animated precipitation radar (MapTiler), zoom / pan and time layers — note: the map interface currently shows radar overlays.Home screen widgets: multiple widget sizes and configurable layouts for quick glances and real‑time updates.Multiple weather providers: switch between OpenWeather, Open‑Meteo, AccuWeather and Meteo France; supply your own API key if necessary.Offline caching & efficient updates: recent data stays available when connectivity is limited and background refresh is optimized for low battery impact.Customizable UI & appearance: light/dark/auto theme, compact or detailed layouts, and locale‑aware formatting.Privacy & open source: no ads, no tracking or analytics (only optional crash reporting); full source code under MIT license.Astronomy & sun/moon dataSun information: sunrise, sunsetMoon information: moonrise, moonset, moon phase, moon position and related path/visuals.Data you can view (examples)Temperatures: current, hourly, daily high/low, feels‑likePrecipitation: probability, amount, minute‑by‑minute (where supported)Wind: speed, gusts, bearing/directionAtmospheric: pressure trends, humidity, dew point, cloud coverUV index, visibility, and other provider‑specific metricsAir Quality (AQI) and individual pollutant breakdowns when the selected provider supplies that dataSettings & customizationIcons style: choose between multiple icon styles. Supports icon providers from Breezy Weather and Geometric WeatherUnits: temperature, wind, pressure, precipitation, distance, ...Time format: 12/24‑hour toggle and locale‑aware formattingProvider & API keys: choose provider and enter your own API key to avoid rate limits or use the included default key (rate limits may apply)Refresh frequency: configurable background refresh intervals and widget update cadenceWidget options: choose saved location, select displayed metrics, and pick widget style/sizeLocation: use device location (approximate or precise) or add/manage locations manuallyPermissions (minimal)Location (optional): used only to provide local forecasts and radar centered on your locationNetwork / Internet: required to fetch forecasts, maps and provider dataPrivacy & contributions OSS Weather is designed to respect your privacy — no tracking, no ads. The project is open source (MIT). Inspect, fork, report bugs or contribute on GitHub: https://github.com/ossappscollective/oss-weather
GitHubIzzyOnDroid
OSS-Dict
APK
OSS‑Dict is a fast, privacy-friendly offline dictionary reader — a modern fork of Aard 2 with Material design and enhanced features for comfortable reading and lookup. Highlights * Blazing fast searches: punctuation, diacritics and case insensitive — find entries instantly. * Bookmarks & history: save and revisit important articles quickly. * Dictionary management: import, enable/disable and organize multiple dictionary files. * Customizable article appearance: add your own CSS to change fonts, colors and layout. * Beautiful math rendering: scalable, styleable formulas that look great on any screen. * Random article for discovery, volume-button navigation, and fullscreen reading mode. * Clipboard auto-paste and easy external link sharing for fast lookups from other apps. Why OSS‑Dict? OSS‑Dict is designed to work entirely offline — your dictionaries stay on your device for fast lookups and better privacy. It’s lightweight, configurable, and ideal for travelers, students, and anyone who needs reliable dictionary access without an internet connection. Network access The app requests the INTERNET permission for internal use by the built-in renderer and to open external links. This permission is not required for core dictionary lookups — the app functions offline with local dictionary files. Open source OSS‑Dict is open source and available on GitHub. Contributions, bug reports and feature requests are welcome. Get started Install or import your offline dictionaries, customize the look with CSS if you like, and start searching — fast and offline.
F-DroidGitHubIzzyOnDroid
OTG Keyboard
APK
BluetoothConnect lets you use your Android device as A Bluetooth Keyboard, supporting OTG as well.How to usepair Android and other devices, like Windows or iPhone to get the device nameforget this Android on Windows; no need for iPhoneopen this app, choose Windows or iPhone's name to connectif it's Windows, it will pop pair-dialog up, pair it; no need for iPhoneOTG connect this Android with wired keyboard, choose aosp English keyboard as input method on Androidno need to repeat above steps for reopen this app, but if the PC's changed, it needs to repeat it again; no need for iPhoneMore details and hints can be found in the project's Readme.
GitHubIzzyOnDroid
OTR Speed Calculator
APK
OTR SC is a tool to work out the top speed of vehicles in OTR. It lets you calculate the average speed.
GitHubIzzyOnDroid
OUI Lookup and Database
APK
With OUI Lookup you can figure out who manufactured a device simply by inserting its MAC address in the search bar. You can also search for a manufacturer and see its assigned OUIs. Features: Trusted source - The database is sourced from the IEEE to be as correct and updated as possible.Works Offline - OUI Lookup works completely offline, an internet connection is only needed to update the database.Bulk lookup - You can paste a comma/semicolon/whitespace/new line separated list of MAC Addresses to perform a multiple lookup.Auto-paste from the clipboard when there is one or more MAC addressesDark theme is supported
F-DroidGitHub
OW Camera 2 For Pebble
APK
Remote shooting from your Pebble watch. See a live preview of your phone's camera and trigger the shutter from your wrist without touching your phone. Perfect for group photos, selfies, and stable shots! Take photos and videos with complete camera control from the phone - adjust exposure, ISO, white balance, focus modes, and more. Re-released to support the last Pebble smartwatches and added support for camera preview, Supports newer Pebble 2 Duo and Pebble Time 2 Features: - Pebble smartwatch remote shutter and camera preview - Full manual controls from the phone (ISO, exposure, white balance, focus) - Grid overlays and level indicators - And many other camera features and customizations Forked from Open Camera with added Pebble functionality.
F-DroidGitHub
ObjViewer
APK
Copy the .obj file that you want to view (and associated .mtl file, if any) onto a directory named “Models” on the SD card of the Android device. It should then appear in the list that is shown when you select “Open...” from the options menu in ObjViewer. You can interactively adjust the orientation of the object by dragging across the view; drag across the middle part to rotate about the X (horizontal) and Y (vertical) axes, and drag around the periphery to rotate about the Z axis (perpendicular to the view) as well.
F-DroidGitHub
Oblique Strategies
APK
A deck of cards. Over one hundred worthwhile dilemmas. Insights into creative processes. Gnomic challenges, constraints, and questions for you to interpret. First published by Brian Eno and Peter Schmidt in 1975, Oblique Strategies is a tool for working past creative blocks and reorienting (or disorienting) thought processes. This app presents you with a single strategy card at a time. - Swipe to reveal the next card. - Use the back button to bring previous cards back. - Create recurring notifications. - Favorites cards to change how frequently they occur.
F-DroidGitHub
Oblivion
APK
Oblivion is a security-focused Android application that allows a user to lock and wipe a device when a trigger is fired. The application is intended for high-risk situations such as device loss, forced unlock, or temporary loss of physical control. Trigger methods: * Panic button (Quick Settings tile) * Remote message containing a secret code * Trigger when the device has not been unlocked for a configurable period of time Actions: * Perform a factory reset (wipe) Device control is implemented using the Android Device Administration API. The has full support for GrapheneOS. Security notes: * Only encrypted (password protected) devices can guarantee that data cannot be recovered * The application does not function in Safe Mode License Free and Open Source Software GPL-3.0
F-Droid
Obscura VPN
APKDesktopiOS
Privacy-focused VPN with two-party architecture that makes logging impossible.
GitHub
O
ObscuraCam: The Privacy Camera
APK
In a world of viral videos and facial recognition, ObscuraCam helps you share photos and videos while protecting the privacy of you and those you care about. With ObscuraCam you can blur and disguise faces in your photos and videos. Information that could identify you as the cameraperson is removed from the files for added security * PRIVACY FOR YOUR PICTURES: ObscuraCam can be used as a camera to take photos, or to anonymize photos and videos you’ve already taken * DISGUISE YOURSELF: Cover faces with pixelate, redact (blackout) or funny nose and glasses * AUTOMATIC FACE DETECTION: ObscuraCam automatically detects faces in both photos and videos, so you can quickly and easily anonymize a crowd or a long video * MULTIPLE PRIVACY MODES: Faces can be pixelated, removed completely, or disguised with funny nose and glasses. You can also blur everything except a small portion of an image * SHARE SECURELY: We remove all identifying data stored in photos including GPS location data and phone make & model so you can save the protected photo back to the Gallery, or share it directly to Facebook, Twitter or any other "Share" enabled app * PROTECTS THE IDENTITY OF THE PHOTOGRAPHER: Smartphones attach information to every photo they take, including where it was taken and by what type of camera. ObscuraCam removes all of this information * AWARD-WINNING: ObscuraCam was a Winner of the 2013 Knight News Challenge ***Learn More*** * PARTNERSHIP: ObscuraCam is a partnership between the security experts at the Guardian Project and WITNESS.org, a non-profit using the power of video and storytelling to open the eyes of the world to human rights abuses * ABOUT US: Guardian Project is a group of developers that make secure mobile apps and open-source code for a better tomorrow * OUR WEBSITE: https://GuardianProject.info * ABOUT WITNESS: A non-profit using the power of video and storytelling to open the eyes of the world to human rights abuses * WITNESS’ WEBSITE: http://witness.org * ON TWITTER: https://twitter.com/guardianproject & https://twitter.com/witnessorg * OPEN-SOURCE: ObscuraCam is free software. You can take a look at our source code, or join the community to help make Orweb even better: https://github.com/guardianproject/ObscuraCam * MESSAGE US: Are we missing your favorite feature? Found an annoying bug? Please tell us! We’d love to hear from you. Send us an email: support@guardianproject.info face detection, blur, pixelize, human rights, activism, orbot, tor, privacy, obscure, obscura, privacy camera, camera, photo editor, journalist, journalism, photoshop, video, video processing, mosaic, anonymity
F-DroidGitHubguardian
Obsidian
APK
GitHub
ObsidianTodoWidget
APK
Obsidian provides a widget to display an interactive todo list from a markdown file.After having the app installed, start it once to grant it the storage permissions – then the widgets are ready to be used.Setup:Select widget from the widget listDrag to HomescreenEnter the Obsidian Vault name to useConfigure the file to usePress "Select" to define the folder where the file(s) is/are stored.Enter the single filename or enter a date patternIf you want to limit the the tasks to a specific header enter the header name into the "Header" fieldIf you want to include sub Headers check the "Include Sub Headers" switchPress Create
GitHubIzzyOnDroid
Page 121