Hiro is described as 'let's you organize things with simple text snippets. It even works for the most chaotic people' and is a Note-taking Tool in the Office & Productivity category. There are more than 100 alternatives to Hiro for a variety of platforms, including Windows, Mac, Online / Web-based, Android and iPhone. The best alternative is Joplin. It's not free, so if you're looking for a free alternative, you could try Standard Notes or Google Keep. Other great apps like Hiro are Microsoft OneNote (Freemium), Evernote (Freemium), Simplenote (Free, Open Source) and Raindrop.io (Freemium, Open Source).
Stickies is a PC utility written to replace Post-It-style notes left stuck to your monitor. The design goal behind Stickies is that the program is small and simple. Stickies will not mess with your system files, or write to the Registry.
Notebooks allows you to create as many books as you need. Notebooks stores and displays almost any type of document: plain text and formatted text, PDF, web pages, MS Office or iWork documents, photos, videos, music and much more.
Tracks is a web-based application to help you implement David Allen’s Getting Things Done™ methodology. It was built using Ruby on Rails, and comes with a built-in webserver (WEBrick), so that you can run it on your own computer if you like.
This program is a structured notetaking application based on GTK+ 3. Write your notes in instantly-formatted Markdown, organise them in a tree of folders that can be instantly navigated from within the program, and add hand-drawn notes by mouse, touchscreen or digitiser.
Diaro is designed to record your activities, daily events, appointments, experiences, thoughts, secrets and ideas throughout the day and sync data across all your devices. It is the easiest and most secure way to keep a diary.