Tasks.org review

Tasks.org is the pick for people who want a free to-do app they can trust with their data. It is open source under the GNU GPLv3, shows no ads and, according to the project, never shares your data. The feature set is deep: filters, tags, lists, manual sorting and subtasks nested to any depth. Sync is where it stands apart. You can keep tasks offline, sync with Google Tasks, use CalDAV or DAVx5 to connect to a self-hosted server, or turn on EteSync for end-to-end encryption, and the open protocols mean the same list can show up in Outlook, Thunderbird or Apple Reminders. On Google Play some features need a subscription, but you choose the price, starting at $0.99 USD per year, and installs from F-Droid get the in-app features with no subscription at all. The trade-off is reach and polish. It is built for Android, the desktop app is in alpha, and setting up CalDAV takes more effort than signing into Microsoft or Google.

Who it is for

Android users who care about privacy, open source software or syncing with CalDAV.

Price

Free core app; extra features from $0.99 per year, name your price.

You can unlock all in-app features for as little as $0.99 USD/year, however you will not have access to Tasks.org Cloud
Quoted from the vendor pricing page on November 11, 2026.

Key features

• Filters, tags, lists and infinite-depth subtasks
• Sync with Tasks.org Cloud, Google Tasks, DAVx5, CalDAV, EteSync or DecSync CC
• Works offline, self-hosted or with end-to-end encryption through EteSync
• Compatible with Outlook, Thunderbird and Apple Reminders through open protocols
• Free software under the GNU GPLv3 license

Strengths and weaknesses

• Strength: No ads, and the project says it never shares your data
• Strength: Choose-your-own-price subscription starts at $0.99 per year
• Strength: F-Droid users get the in-app features without a subscription
• Weakness: Built for Android, with the desktop version still in alpha
• Weakness: Some features need a subscription on Google Play
• Weakness: Tasks.org Cloud sync costs $2.99 per month or $29.99 per year

Key facts

• Free plan: Yes, open source
• Cheapest paid option: $0.99 per year, name your price
• Tasks.org Cloud: $2.99 per month or $29.99 per year
• License: GNU GPLv3
• Platforms: Android, desktop in alpha

Where it ranks

Tasks.org is No. 6 in our Best Free To-Do List Apps verdict.