Apps without tracking

No analytics, telemetry or tracking SDKs.

page 41

JekyllEx

The mobile IDE to create, build, edit, preview, and publish Jekyll sites.
- System & tools
- FOSS
- Free
- No ads
- No tracking
- Android only
F-Droid GitHub Zapstore
Jellyfin

Mobile client for Jellyfin, the free software media system
- Multimedia
- FOSS
- Free
- No ads
- No tracking
- Android only
Google Play Aurora Store F-Droid IzzyOnDroid GitHub Zapstore
Jellyfin for Android TV

Television client for Jellyfin, the free software media system
- Multimedia
- FOSS
- Free
- No ads
- No tracking
- Android only
Google Play Aurora Store F-Droid GitHub Zapstore
Jerboa for Lemmy

An app for Lemmy, a federated reddit alternative.
- Communication
- FOSS
- Free
- No ads
- No tracking
- Android only
F-Droid IzzyOnDroid GitHub Zapstore
JetBird

An unofficial, FLOSS, native Android NetBird client built with privacy in mind
- System & tools
- FOSS
- Free
- No ads
- No tracking
- Android only
F-Droid IzzyOnDroid Zapstore
JEV 2022 Schedule

Conference program app for the JahresEndVeranstaltungen (JEV)
- Productivity
- FOSS
- Free
- No ads
- No tracking
- Android only
Google Play Aurora Store F-Droid GitHub Zapstore
Jigsaw

A Jigsaw Puzzle Game
- Games
- FOSS
- Free
- No ads
- No tracking
- Android only
F-Droid Zapstore
Jigsaw Solitaire

A beautifully tactile, relaxing jigsaw puzzle game
- Games
- FOSS
- Free
- No ads
- No tracking
- Android only
F-Droid GitHub Zapstore
JioFi Battery Notifier

Battery Notifier for JioFi Device with battery Icon in Notification and Alerts
- System & tools
- FOSS
- Free
- No ads
- No tracking
- Android only
F-Droid GitHub
Jiten Japanese Dictionary

Japanese dictionary based on jmdict/kanjidic (offline version)
- Education
- FOSS
- Free
- No ads
- No tracking
- Android only
F-Droid GitHub
Jiten Japanese Dictionary [Online]

Japanese dictionary based on jmdict/kanjidic (online version)
- Education
- FOSS
- Free
- No ads
- No tracking
- Android only
F-Droid GitHub
Jiyi

Encrypted audio logging app
- Multimedia
- FOSS
- Free
- No ads
- No tracking
- Android only
F-Droid GitHub Zapstore
J
JKU App

Provides information for the students of JKU Linz
- Education
- FOSS
- Free
- No ads
- No tracking
- Android only
F-Droid
JMdict droid

A Japanese to English dictionary, based on JMdict.
- Education
- FOSS
- Free
- No ads
- No tracking
- Android only
F-Droid Zapstore
JMP SIM Manager

Companion app for the JMP eSIM Adapter
- System & tools
- FOSS
- Free
- No ads
- No tracking
- Android only
Google Play Aurora Store F-Droid Zapstore
Jotdown

Offline PDF reader with OCR and academic annotations.
- Education
- FOSS
- Free
- In-app purchases
- No ads
- No tracking
- Android only
Google Play Aurora Store F-Droid GitHub Zapstore
Journal

Keep track of substance usage to gain insights on consumption patterns
- Android only
Google Play Aurora Store F-Droid Zapstore
Journal Multilingual

Open-source drug use tracker with interaction checker and multilingual support.
- Health & fitness
- FOSS
- Free
- No ads
- No tracking
- Android only
F-Droid GitHub Zapstore
jQuarks viewer

LineageOS Jelly browser +adsBlocker +random_UserAgent +offline_.mht +...
- Internet
- FOSS
- Free
- No ads
- No tracking
- Android only
F-Droid Zapstore
JRBP Survey

Jasper Ridge ant survey navigation and data entry
- Navigation
- FOSS
- Free
- No ads
- No tracking
- Android only
F-Droid GitHub Zapstore
JRPN 16c

Programmer's calculator similar to an HP 16c.
- System & tools
- FOSS
- Free
- No ads
- No tracking
- Android only
F-Droid
JS-Dict

Japanese-English dictionary app powered by Jisho.org.
- Education
- FOSS
- Free
- No ads
- No tracking
- Android only
F-Droid GitHub Zapstore
J
JSettlers

Remake of "The Settlers 3"
- Games
- FOSS
- Free
- No ads
- No tracking
- Android only
F-Droid GitHub
JSlab

A simple android app for evaluating JavaScript code in a browser context.
- System & tools
- FOSS
- Free
- No ads
- No tracking
- Android only
F-Droid
jSlide2

A short 3D Platformer with an Online Highscore and viewable Replays.
- Games
- FOSS
- Free
- No ads
- No tracking
- Android only
F-Droid Zapstore
Json List

previewing JSON from file or url in a user-friendly list format
- System & tools
- FOSS
- Free
- No ads
- No tracking
- Android only
Google Play Aurora Store F-Droid IzzyOnDroid GitHub Zapstore
Just (Video) Player

Simple video player based on ExoPlayer library
- Multimedia
- FOSS
- Free
- No ads
- No tracking
- Android only
Google Play Aurora Store F-Droid GitHub Zapstore Accrescent
Just 24 Hours

A free and open source app that shows a large digital clock
- System & tools
- FOSS
- Free
- No ads
- No tracking
- Android only
F-Droid
Just Another Workout Timer

A simple timer for your workouts, built with Flutter!
- Health & fitness
- FOSS
- Free
- No ads
- No tracking
- Android only
F-Droid GitHub
Just Delete Me

A directory of direct links to help you delete your account from web services
- Internet
- FOSS
- Free
- No ads
- No tracking
- Android only
F-Droid GitHub Zapstore
just open links in a browser

Sends links to your real browser instead of an app's built-in one
- System & tools
- FOSS
- Free
- No ads
- No tracking
- Android only
F-Droid GitHub Zapstore
JustChess

Chess for one or two players
- Games
- FOSS
- Free
- No ads
- No tracking
- Android only
F-Droid
Juvavum

Domino Juvavum and Cram are board games which can be played against the computer
- Games
- FOSS
- Free
- No ads
- No tracking
- Android only
F-Droid
K-19 Player

A music player for OpenSubsonic
- Multimedia
- FOSS
- Free
- No ads
- No tracking
- Android only
F-Droid GitHub Zapstore
k3pler

Network connection blocker and packet analyzer
- Security & privacy
- FOSS
- Free
- No ads
- No tracking
- Android only
F-Droid
k4android

client for k4ever cash system
- Finance
- FOSS
- Free
- No ads
- No tracking
- Android only
F-Droid
KabelWacht

A simple, free WireGuard VPN client: scan, import, and manage tunnels.
- System & tools
- FOSS
- Free
- No ads
- No tracking
- Android only
F-Droid GitHub Zapstore
Kachin for AnySoftKeyboard

AnySoftKeyboard Kachin Language pack
- System & tools
- FOSS
- Free
- No ads
- No tracking
- Android only
Google Play Aurora Store F-Droid GitHub Zapstore
Kahon

A fork of Mihon with some annoying restrictions removed
- Internet
- FOSS
- Free
- No ads
- No tracking
- Android only
F-Droid GitHub Zapstore
Kai 9000

OpenClaw alternative in your pocket
- Internet
- FOSS
- Free
- No ads
- No tracking
- Android only
Google Play Aurora Store F-Droid GitHub Zapstore
K
Kaku

Japanese OCR Dictionary
- Education
- FOSS
- Free
- No ads
- No tracking
- Android only
F-Droid GitHub
Kakugo

Learn Japanese with Kakugo
- Education
- FOSS
- Free
- No ads
- No tracking
- Android only
F-Droid Zapstore
Kakuro

Solve Kakuro puzzles! The addictive blend of Sudoku and crossword sums.
- Games
- FOSS
- Free
- No ads
- No tracking
- Android only
F-Droid GitHub Zapstore
Kandroid (fork)

Manage your projects using Kanboard
- System & tools
- FOSS
- Free
- No ads
- No tracking
- Android only
F-Droid
Kanji Dojo

Learn & practice writing Japanese characters
- Education
- FOSS
- Free
- No ads
- No tracking
- Android only
F-Droid GitHub Zapstore
Kanji draw

A simple drawn kanji character recognition application
- Education
- FOSS
- Free
- No ads
- No tracking
- Android only
F-Droid
Karabau

Native Android client for Karakeep to save, organize, and manage bookmarks.
- Productivity
- FOSS
- Free
- No ads
- No tracking
- Android only
F-Droid GitHub Zapstore
Karma Firewall

Karma Firewall blocks apps from accessing the Internet
- Security & privacy
- FOSS
- Free
- No ads
- No tracking
- Android only
F-Droid GitHub Zapstore