Apps with 'Cross-platform' feature
GIMP is a free program for such photo retouching, image composition and image authoring. Essentially it's the closest thing to Photoshop you can get for free.
A safe home for all your data – Access & share your files, calendars, contacts, mail & more from any device, on your terms.
Evernote is a cross-platform, freemium app designed for note taking, organizing, and archiving.
Save webpages to read later, and eliminate cluttering of bookmarks with sites that are merely of a one-time interest.
A digital notebook application that gives people one place to gather notes and information. .
A free instant messaging and collaboration software based on the Matrix protocol.
BleachBit deletes unnecessary files to free valuable disk space, maintain privacy, and remove junk.
KeePass Cross-Platform Community Edition - A community maintained fork of the popular KeePassX application with more features and frequent updates.
Fast, compact image viewer, editor, converter and organizer designed to be simple but powerful.
An open source note taking and to-do application with synchronisation capabilities.
Remote desktop app for sharing screens and files sharing across most devices focusing on speed and security.
With so many tools, it's hard to keep everyone on the same page. Notion is a new tool that unifies them all.
Java is a general-purpose computer programming language that is concurrent, class-based, object-oriented, and specifically designed to have as few implementation dependencies as possible.
Godot is a fully featured, open source, MIT licensed game engine. It focuses on having great tools, and a visual oriented workflow that can export to PC, Mobile and Web platforms.