Learning
Get smarter — 60+ apps, all free and open source.
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In testing
bearings-lsd
Psychedelic Prep. and Integration Guide
BOINC
Lend your phone's spare power to science
PSLab
A pocket science lab on your phone
Sky Map
Point your phone at the sky to name the stars
jidoujisho
Learn a language by tapping words in video, books and manga
Look4Sat
Know when the space station flies over you
Moodle
Your school or university coursework in your pocket
whoBIRD
Name the bird you can hear, right where you stand
microMathematics Plus
Do maths on a worksheet and watch the graphs update
phyphox
Turn your phone's sensors into a physics lab
Breathly
Guided breathing to calm down or fall asleep
QuickDic
Offline dictionaries for dozens of language pairs
Audio Analyzer
See the sound around you as a live spectrum
Atomic - Periodic Table
The periodic table, offline and in detail
Binaural Beats
Tone sessions for sleep, focus and relaxation
iNaturalist
Find out what plant or animal you just saw
Arity
A scientific calculator that draws your functions
dikt
Look up words offline, with everything in thumb's reach
Flash Deck
Make flash cards and quiz yourself until it sticks
Mindfulness Meditation
Guided meditations to help you slow down
Dileit
Look up English words and drill them with flashcards
Iremi
Guided breathing exercises to calm anxiety
AnkiDroid
Remember anything with smart flashcards
OpenBot
Turn your old phone into a robot's brain