Apps & websites
Learning — simple & easy.
Beautifully designed mobile apps and websites help you learn easily. Offline, searchable, and built for a clear reading screen.
Offline
Built-in tutorials to help you browse offline
Reduce the need for a live connection. Tutorials travel with the app, so learning still works when the network doesn’t.
See on Google Play
Search
Built-in search to help you browse faster
Jump to a function, a command, or a concept without scrolling forever. Search is built in.
See on Google Play
Bookmarks
Built-in bookmarks to help you stay close to a topic
Keep favorite topics close. Bookmark what you need and return without hunting again.
See on Google Play
Reading
Light and dark modes for a clear reading screen
Customize the screen and toolbar with dark and light themes, font size, and favorite bookmarks.
See on Google PlayCatalog
Discover apps
Python Documentation Offline docs, book, tutorials, Google course and videos for Python 3.6+. Python · 100K+ · 4.4 
Learn Java Programs 250+ Java programs with syntax and output — well categorized. Java · 4.2 
Spring Framework — Java Documentation, tutorials, references and videos for Spring. Java · 4.6 
C Programming C definitions, guide, tutorials, references and explanations. C / C++ C++ Programming C++ definitions, guide, tutorials, references and explanations. C / C++ Learn Java Simple programs, book, tutorials, online references and glossary. Java 
PHP Documentation Full offline PHP documentation, guide and mobile-optimized tutorials. Web · 4.4 
Perl Documentation Full offline Perl documentation, guide and mobile-optimized content. Scripting · 4.3 Rb Ruby Documentation Full offline Ruby documentation, guide and tutorials. Scripting RoR Ruby on Rails Docs Full offline Ruby on Rails documentation and tutorials. Web 
Unix & Linux Commands Simple commands, Unix guide, Linux tutorials and explanations. Unix / Linux Ub Ubuntu Guide Ubuntu definitions, guide, tutorials and references. Unix / Linux 
Hibernate Docs Full Hibernate offline documentation and mobile-optimized tutorials. Java 
PostgreSQL Docs Full PostgreSQL offline documentation, guide and tutorials. Database Websites
It’s time to learn with easy programs
Popular
Browse wherever you are
Reviews
What people wrote on Google Play
“As a python programmer, I use this app for daily reference. When not recalling a function or a module or a flow structure this app comes in to help. Good improvements: the interface, settings and overall smooth experience.”
“Nothing to say about it. Just install it and if you find it not good then blame me. Just awesome. Very nice interface. The search option is fantastic. Everything works perfectly as I wanted.”
“Get it!! I don't write reviews often, but I use this app all the time, and it has been great for me to learn when I don't have the internet. Recommended for anyone learning or using postgres. I downloaded the other apps as well.”
“Well structured, offers easy access to a concept you might want to review, great for learning and revision when learning the C++ language. Personally the new layout makes the app more easy to use... GREAT COVERAGE.”
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