Atomic Task

Brandon Guigo

In-app purchases

About this app

Tasks. Habits. Calendar. All in One.

Stay organized and build better habits — with Atomic Task.
Simple, powerful, and fully encrypted, Atomic Task brings together your tasks, habits, and calendar into a single, open-source app that puts you in control.

Why Atomic Task?

— Manage Tasks and Habits Seamlessly – Tasks, recurring habits, and smart reminders, all in one place.
— See the Big Picture – Calendar views make it easy to plan, track, and stay ahead.
— 100% Open Source & Private – No ads, no tracking — your data stays yours, encrypted end-to-end.
— Minimalist, Yet Powerful – Designed for focus, packed with flexible features.
— Part of Atomic Blend – A suite of open-source, privacy-first apps built to work beautifully together.

Atomic Task is your first step into the Atomic Blend ecosystem — designed for people who value privacy, simplicity, and full control over their digital life.

Get started with Atomic Task today.

What’s new

A redesigned task row with Undo, swipe actions and a row menu
Today is grouped into Late and Today, with move-all-to-today
Habits now show up in your Home timeline
A resizable list and detail view, plus keyboard shortcuts that work
Switch calendar views from the page title