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5170 apps · feature
Knot
APK
Minimal, memo/note app without option, distraction free, no ads, no tracker, FOSS, only one note possible, simple and fast so every idea can be saved easily with a dark and light mode following the system theme. About the concept and name: An antiquated form of memory aid. The basic idea is that you tie a knot in the corner of your handkerchief the night before you have to perform some task. When you go to blow your nose or wipe your face or perform any of the other actions associated with a handkerchief you will see the knot and remember your duty. Problems arise, however, when it comes to recalling precisely what it is you are supposed to remember. Also, with the rise of the paper tissue, and the decline of the handkerchief, this practice has fallen out of use. Nowadays it is far easier to use a memo app on your mobile phone.
F-Droid
KnoxPatch
APK
KnoxPatch is a LSPosed module to get Samsung apps/features working again in your rooted Galaxy device. It is accompanied by KnoxPatch Enhancer (available via the IzzyOnDroid Magisk Module Repository), a Magisk module that will take care of the non-fixable apps/features via the Xposed API's, such as the Galaxy Wearable apps.
GitHubIzzyOnDroid
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Kodi
APK
Kodi is a media player and entertainment hub for digital media. Kodi can be used to play almost all popular audio and video formats around. It was designed for network playback, so you can stream your multimedia from anywhere in the house or directly from the internet using practically any protocol available. Point Kodi to your media and watch it scan and automagically create a personalized library complete with box covers, descriptions, and fanart. There are playlist and slideshow functions, a weather forecast feature and many audio visualizations.
F-DroidGitHub
Kolab Client
APK
A synchronisation provider for contacts and calender, integrating with Kolab or IMAP servers. Status: Currently, this is a developer preview. The project can eat all your data. (Calendar sync probably only works for Android 4 on 0.9.5-ICS).
F-Droid
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Kolab Notes
APK
Take notes locally and optionally sync them with Kolab and IMAP servers in the Kolab v3 storage format. The goal of the app is, to support the full stack of Kolab Notes functionality: notebooks and tags for organising notes is already possible. Also it is possible to edit the classification and color of a note. Formatting the text and inserting inline images works, too. The app is also able to display and edit the color of tags. Since 1.0.0 shared notebooks are supported (which can be toggled in the extended options from the account creation wizard). There are already 2 types of widgets included in the app. One widget is a kind of a "sticky note" widget, it displays the summary and description of a single note. The other widget is a configureable list widget.
F-DroidGitHub
Koler
APK
Koler’s ongoing call UI makes everything easier. Its uses swipes and minimalistic design, making everything more beautiful, intuitive, yet still productive. In an incoming call, you can do the following before answering: * Reject and send the call a SMS * Reject in a specified amount of seconds * Answer in a specified amount of seconds In an ongoing call you can: * Reject in a specified amount of seconds The app’s main goal is to be more intuitive and comfortable, For that reason, the swipes are the main way of controlling the app, making it much smoother to use. Dialer: * Call - Swipe up * Delete number - Swipe left * Collapse dialer - Swipe on the contacts list Incoming Call: * Open keypad - Swipe up * Reject/End - Swipe left * Answer - Swipe right * Send sms - Swipe up on the send SMS overlay
F-DroidGitHub
Komelia
APK
Komelia is a client application for Komga, a media server for your comics, manga, BDs, magazines and eBooks. Organize your CBZ, CBR, PDF and EPUB files in different libraries, collections or reading lists. Manage edit metadata for your series and books. Read your books using built-in reader.
F-DroidGitHub
Komodo Wallet
APK
Komodo Wallet is a cross-platform cryptocurrency wallet and decentralized exchange (DEX) that supports multiple blockchain networks. It provides secure storage for various cryptocurrencies and enables peer-to-peer trading through atomic swaps. Features: * Multi-coin wallet supporting various cryptocurrencies * Decentralized exchange (DEX) functionality * Atomic swap technology for trustless trading * Cross-platform support (Web, Desktop, Mobile) * Secure private key management * Support for UTXO and ERC-20 tokens * Hardware wallet integration (Trezor) The application is built with Flutter and uses the Komodo DeFi SDK for blockchain interactions. It provides a user-friendly interface for managing digital assets and participating in decentralized finance.
F-DroidGitHub
Koofr Vault
APK
Koofr Vault is an open source, client-side, zero-knowledge encrypted storage application by Koofr. Unlock enhanced security for your files. Discover a better way to securely store and access your photos, videos and documents. Included in all Koofr plans, even in the free one. Start using Koofr Vault now to make your life more secure. First time users must create a free Koofr account. Access everything through the Koofr Vault mobile app for Android. With Koofr Vault for Android you can: • create new Safe Boxes, • upload files or folders to your Safe Boxes, • download your files to your phone or open them in different apps, • take a photo and store it in your Safe Box, • use biometrics to unlock Safe Boxes. All Safe Box files are encrypted or decrypted by your device on demand as you access them. Since your Safe Key, only known to you, is required to decrypt cloud content, only you can access the files. Neither your Safe key nor any other unencrypted file data or metadata is sent to or stored by Koofr. The cloud has never been safer! Need help? Contact our support team at support@koofr.net.
F-DroidGitHub
Kords
APK
Kords is a tool for ukulele players with multiple useful functionalities: - Chord search: Type the name of a chord and see how you can play it! - Chord namer: You know how to play a chord but can't remember its name? Enter how you play it, and let the app find its name! - Songbook: Save songs in the app with multiple structure types!
F-DroidGitHub
Kore
APK
Kore™ aims to be a simple, easy to use and beautiful remote that lets you control your Kodi® / XBMC™ media center from your Android™ device. With Kore you can – Control your media center with an easy to use remote; – Including several colour themes; – See what’s currently playing, including relevant information (movies, TV shows, music, pictures and addons); – Change, sync or download subtitles; – Switch to the desired audio streams; – All the usual playback and volume controls at your disposal; – Toggle back and forth between windows or full screen playback in Kodi – Add, check and manage the current playlist; – View what is in your media library with details about your movies, TV shows, music and add-ons; – Direct link to relevant IMDb website for extensive information; – Library maintenance like clean and update; – Wake-on-LAN and other power control actions that the selected device supports; – Send YouTube videos to your currently selected media center; – Send text to the instead of using the keyboard in Kodi; – Switch to live TV channels and trigger recording on your PVR/DVR setup; Currently not added yet – Browsing smartplaylists These features will be added in future versions Works with – Kodi 14.x "Helix" and higher; – XBMC 12.x "Frodo" and 13.x Gotham; Current supported interface languages – Basque – Bulgarian – Chinese – Czech – Dutch – French – German – Italian – Portuguese – Portuguese (Brazil) – Spanish – Russian License and development Kodi® and Kore™ are trademarks of the XBMC Foundation. For further details you can visit http://kodi.wiki/view/Official:Trademark_Policy Kore™ is fully Open-Source and released under the Apache License 2.0 Should you wish to help on future development you can do so by visiting https://github.com/xbmc/Kore for code contributions. Permissions Storage: is needed for possible downloading of content from Kodi Telephone: is needed to be able to pause Kodi when an incoming call is detected. Kore does not collect or share information to the outside. Need help or have any problems? Please visit our forum at http://forum.kodi.tv/forumdisplay.php?fid=129 Images shown on screenshots are Copyright Blender Foundation (http://www.blender.org/), used under a Creative Commons 3.0 License Kodi™ / XBMC™ are trademarks of the XBMC Foundation
F-DroidGitHub
KoreMD (Really)?
APK
KoreMD is a simple, elegant Markdown editor built with Ionic and Vue 3.The name plays on multiple meanings:"Kore MD" = "Is this Markdown?"MD also represents Moldova 🇲🇩 — this project supports Moldovan people and Ukrainian refugees there.Features:Simple & Clean Design — minimal, distraction-free interfaceMarkdown Editor — real-time editing with syntax toolbarLive Preview — switch between edit and preview modesCross-Platform — works on iOS, Android, Web, and DesktopMulti-language — Japanese and English supportCustomizable — adjust font size and font familyImport/Export — easy file managementLocal Storage — your data stays on your deviceFast file transfer via Wi-Fi Direct (no internet required)Moldova support — design inspired by Moldovan flag colorsAbout Moldova Support 🇲🇩This project is designed to support Moldovan people and the Ukrainian refugees living there.The app's design incorporates the color scheme of the Moldovan flag (blue, red, and yellow).Privacy & Security:All files are stored locally on your deviceNo internet connection requiredNo data collectionNo trackingOpen source and transparentMade with ❤️ by PYU224
GitHubIzzyOnDroid
Kotatsu
APK
Kotatsu is a free and open source manga reader for Android. **Main Features:** - Online manga catalogs (with 1100+ manga sources) - Search manga by name, genres, and more filters - Favorites organized by user-defined categories - Reading history, bookmarks, and incognito mode support - Download manga and read it offline. Third-party CBZ archives are also supported - Clean and convenient Material You UI, optimized for phones, tablets, and desktop - Standard and Webtoon-optimized customizable reader, gesture support on reading interface - Notifications about new chapters with updates feed, manga recommendations (with filters) - Integration with manga tracking services: Shikimori, AniList, MyAnimeList, Kitsu - Password / fingerprint-protected access to the app - Automatically sync app data with other devices on the same account - Support for older devices running Android 5+
F-DroidGitHub
Kotlin Quiz
APK
Kotlin Quiz is an engaging Android application that allows users to test their knowledge in Kotilin Programming language through fun and interactive quizzes. This app is built with a clean code architecture following the MVVM pattern, ensuring maintainability and scalability. The app comprises three main layers: App (Presentation), Domain, and Data, each with its unique set of responsibilities.
F-DroidGitHub
Kotori
APK
Kotori obtains the GPS data from device sensors. Currently the data showed is: Current speed Distance Average speed Maximum speed GPS accuracy Used and available satellites And more... Note that Kotori does not require any internet connection but may is necessary to assist the GPS. This means some data is shared with Google if the device uses Google Play Services. This is a fork of Speedmeter
F-Droid
KouChat
APK
Chat and transfer files with others on your WiFi network. KouChat is a serverless LAN chat application for the desktop and Android. With KouChat you can chat and send files to other KouChat users on the same local area network. It's intended to be used on your wireless network at home, the coffee shop, work place or similar, and does not require any setup, Internet connection or servers to function. See our user guide for more information about how to use KouChat. Notes: * KouChat does not see users across the Internet or the cellular network. * Some devices have unreliable network when the screen is off. * Not all networks have multicast enabled, which is a technology required for KouChat to work. * See at the bottom for tips if you are having problems. Features: * Group chat with all the connected users * Private chat with any user * Choose your own nick name * Set the topic of the group chat * Rich notifications * See who is currently writing * Send and receive files * Use away mode when you don't want to be disturbed * Choose the color to use for your own messages, and info messages * Send messages in any language supported by Unicode.
F-DroidGitHub
Krautschlüssel
APK
With Krautschlüssel you can lock and unlock Jena Krautspace's door, provided that you have an appropriate (digital) Key.
F-Droid
Kreate
APK
Fork of RiMusic, performance is our top priority. Features: Support multiple languages Friendly designs Cache or download songs for offline playback Background playback Statistics and reports (stored and processed locally) Various audio visualizers (some require mic permission, but disabled by default) Sleep timer Audio control: playback speed, pitch, normalization, skip silence Support for Android Auto, Android TV, and YouTube video Export cached/downloaded songs Play music even when not connected to the internet And many more...
F-DroidGitHubIzzyOnDroid
Kriptofolio
APK
This app will track all your cryptocurrencies in one place and let you know how much they are worth converted to fiat money.The important thing for the user is that this app is going to ensure 100% trust. It will not require any login/registration process. It won’t collect users’ data by sending it to the server. Users’ provided data about cryptocurrency investments will be only stored inside a local database that is kept inside an Android device. However, to know the portfolio’s value converted to the fiat money, the app is going to use the Internet to get the latest conversion rates.As the topic of money for people is so sensitive, to ensure trust, this app. is being developed openly by creating blog posts series and making the project code available so everyone can see that there is nothing to hide.
GitHubIzzyOnDroid
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Krita
APK
Krita is a professional painting program. It is made by artists that want to see affordable art tools for everyone. It's designed primarily for digital painting and 2D animation and features an OpenGL-accelerated canvas, colour management support, an advanced brush engine, non-destructive layers and masks, group-based layer management, vector artwork support and switchable customisation profiles. Note: android version of krita is optimized only for tablets and may behave poorly on phone screens.
F-Droid
KryptEY
APK
Communicate securely and independent, regardless of the legal situation or whether messengers use E2EE. No server needed. #ChatKontrolleStoppen Why KryptEY? Breaking of end-to-end encryption (E2EE) by laws such as the planned EU chat control is an ongoing issue. Content in messengers that use E2EE, such as Whatsapp or Signal, could thus be monitored by third parties. E2EE is often, but not always, standard in messengers. There are proven methods for E2EE such as PGP. However, these methods are sometimes cumbersomely integrated and require a lot of effort to use. KryptEY is an Android keyboard that implements the Signal protocol. The keyboard works messenger-independently and both the X3DH Key Agreement Protocol and the Double Ratchet Algorithm work without a server, thus it enables a highly independent use of the protocol. Features Based upon Simple Keyboard ( https://github.com/rkkr/simple-keyboard ), KryptEY adds a view above the Keyboard for the E2EE functionality. * use E2EE through Signal Protocol in any messenger * encryption/decryption of messages * enter message through separate text field in keyboard * use clipboard to read messages * manage contacts in own contact list in keyboard * message log to view sent/received messages * send messages as plain JSON (raw mode) or hidden in a decoy text (fairytale mode) * verification of E2EE functionality via fingerprint * Q&A View for questions * dark & light theme See https://github.com/amnesica/KryptEY/blob/master/KRYPTEY.md for further information on how KryptEY is working. Security The existing security properties for the Signal Protocol are also valid for the keyboard. Limitations The keyboard was designed as a POC and only allows 1-to-1 conversations. However, the application can also be used in a group chat to a limited extent. Here, a message can be directed to a specific chat partner and not to all people. Other participants of the group chat cannot decrypt the message. Text messages in Telegram are getting copied as HTML and not as plain text. When decoding the message with the fairytale mode the copied message is compromised and can't be read properly. Therefore, it can't be decoded at all. However, the raw mode works properly. When using KryptEY with Telegram we recommend the raw mode. Some messengers like Threema only allows up to 3500 bytes per message. Therefore, different character input limitations apply. To stay under the 3500 bytes limit, only 500 characters are allowed for raw and fairytale mode. For convenience these limitation applies for all messengers. Demo For a demonstration on how KryptEY is used see https://github.com/amnesica/KryptEY/tree/master#demo KryptEY was created by mellitopia and amnesica. The code is open source and can be found at https://github.com/amnesica/KryptEY
F-DroidGitHubIzzyOnDroid
Kuaizi IME
APK
筷字输入法 (Kuaizi IME) is a system based on the combinatorial features of Chinese Pinyin. It is an efficient and fast input method editor, suitable for electronic touchscreen devices. 筷字输入法 (Kuaizi IME) abandones the traditional method of tapping on virtual keyboard keys one by one, it instead offers a swipe input method for Pinyin, combined with the combinatorial features of Pinyin letters. The key layout is designed to make Pinyin input more accurate and convenient. 筷字输入法 (Kuaizi IME) provides editing support such as cursor movement and text selection for the target editor, thereby eliminating the frustration of being unable to accurately position inputs and text due to the small screen size of mobile devices. This further enhances text input and editing efficiency on small-screen devices. User-data generated by 筷字输入法 (Kuaizi IME) is stored locally. It does not connect to the internet and will not collect nor analyze user data or behavior habits. Furthermore, it does not support or provide predictive input nor fuzzy matching mechanisms. To some extent, this input method editor aims to enhance the users' ability to recognize and memorize Chinese characters and Pinyin, ensuring that the reliance on digital tools does not lead to the gradual forgetting and eventual abandonment of 「汉字」(Hànzì, Chinese characters), a treasure of Chinese civilization.
F-DroidGitHub
Kumquats
APK
A word game where you place letters to create intersecting words as quickly as possible. Try to beat your best times, while practicing vocabulary and anagramming.
F-DroidGitHub
Kung Foo Barracuda
APK
Beat'em up arcade for the masses! Play a classic beat'em up arcade game like it is 1987. This gameplay is combined with the vertical scoller madness we all like from our favourite space shooters! How high can your score get?
F-DroidGitHub