Osmo is described as 'Handy personal organizer, which includes calendar, tasks manager, address book and notes modules. It was designed to be a small, easy to use and good looking PIM tool to help to manage personal information' and is a Note-taking tool in the office & productivity category. There are more than 50 alternatives to Osmo for a variety of platforms, including Windows, Linux, Android, Mac and Web-based apps. The best Osmo alternative is Fossify Calendar, which is both free and Open Source. Other great apps like Osmo are CherryTree, Trilium Notes, Cryptee and wikidPad.
Passfindr is a web based premium Personal knowledge base, Password manager and Bookmark manager application to securely store passwords and other sensitive information in a virtual vault locked with individual master passwords.
Merkuro is a calendar and contact application that allows you to manage your tasks, events and contacts. Merkuro supports both local calendars as well as a multitude of online calendars: Nextcloud, Google® Calendar, Outlook®, Caldav, and many more.
End-to-encrypted, laser-focussed yet elegant editor. No registration, no login, no ads, no tracking, no hassle. Just write. In private or together with others.
Flashnote is a quick notes manager created for such cases. When you need a rough copy to save or to process some pieces of a text, Flashnote is small, quick and convenient. Press the shortcut-key combination and a rough copy is on the screen in a flash of a second.
BORG is a combination calendar and task tracking system. The calendar supports all sorts of appointments and also a simple todo list. The calendar functionality is similar to that of other PIMs, such as Microsoft Outlook, Mozilla Calendar, Palm Desktop, Yahoo Calendar, etc...
Contacts keeps and organize your contacts information. You can create, edit, delete and link together pieces of information about your contacts. Contacts aggregates the details from all your sources providing a centralized place for managing your contacts.
Never forget another brilliant idea. Log, organize and track your ideas and more with the Idea Notebook.
MixNote is a mobile note taking app, like a memo pad or notepad. Take note of every deserved thing, with text, ToDo, voice and picture.
Take simple text notes. You can put them into folders to create your own quick, easy and robust file structure.
Productivity app. Save information like a sticky notes. You can create notes with images, videos or whatever you want. Save pages to read later or capture any web content with the chrome or firefox extension. Share boards with your friends. Create public boards.
Fast and portable note editor.
Supports: Markdown format, HTML previews, tagging, favorites, searching, Dropbox and Google Drive synchronization, embedded photos.
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The syncing ability of this app is very useful accompanied with Thunderbird Email client.