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OneTask vs Tasks.org

Price, platforms and features side by side. The table says where each price was read and when.

OneTask

Free task app that syncs Google, Outlook and CalDAV task lists

Free

Tasks.org

Open-source Android to-do list with CalDAV and Google Tasks sync

Free plan · from $0.99/yr

Where they differ

  • OneTask is free. Tasks.org starts at $0.99 per year (name-your-price subscription).
  • Only OneTask lists an iOS app.
  • Only Tasks.org lists a Linux app.
  • Tasks.org is open source, according to its own site.
In commonFree planmacOSWindowsAndroidWorks offlineTasks

At a glance

OneTaskTasks.org
PricingFreeFree plan
Starts atFree$0.99 per year (name-your-price subscription)
Free planThe app is a free download on the App Store, Google Play and the Microsoft Store. The US App Store listing shows no in-app purchases.Free on Android: unlimited tasks, lists, tags and reminders, recurring tasks, location-based reminders, and sync with Google Tasks and Microsoft To Do.
Free trialNone listed7-day free trial on Google Play subscriptions
macOS
Windows
Linux
iOS
Android
Made byCode SparkTasks.org, LLC
Price read fromapps.apple.comtasks.org
CheckedOct 9, 2026Oct 5, 2026

Who each one suits

OneTask

  • People with tasks split across Google and Microsoft accounts
  • Users of Nextcloud, Synology or another CalDAV server
  • Anyone who also uses Code Spark's OneCalendar app

Tasks.org

  • Android users who want a task list that works with no account
  • People syncing tasks with their own CalDAV server or EteSync
  • Google Tasks or Microsoft To Do users who want a fuller Android client

Worth knowing

OneTask

  • There is no web version; the site lists apps for Android 6 and higher, iPhone, iPad, Mac and Windows 10 and 11 only.
  • It has no task service of its own: tasks live in a connected Google, Microsoft, iCloud or CalDAV account.
  • Google Play and the Microsoft Store label the app as having in-app purchases, but no listing or vendor page shows a price for one.
  • The app is titled One Task on Google Play and the Microsoft Store and One Tasks on the App Store, not OneTask.

Tasks.org

  • There is no iPhone or web app. Apple devices reach Tasks.org lists through Apple Reminders over CalDAV.
  • The desktop apps are labeled alpha and need a subscription, and the maker says matching the Android app's features will take a while.
  • Tasks.org Cloud sync needs the $2.99 a month or $29.99 a year subscription; the name-your-price tier does not include it.
  • On Google Play installs, custom themes and icons and sync through DAVx⁵, CalDAV or EteSync all need a subscription.

Key features

OneTask

Several task providers in one app
Accounts from Google Tasks, Outlook, Office 365 and iCloud Reminders can be added side by side, so task lists from each appear in one place.
CalDAV task lists
Any third-party CalDAV server can be added with a username, password and server address. Nextcloud, Synology and Mailbox.org have dedicated account types.
Subtasks, due dates and reminders
Tasks can carry subtasks, due dates and reminders, and widgets show tasks outside the app.
Offline use
The site and the Microsoft Store listing both list working offline, without an internet connection, as a feature.
Views, search and theming
The app offers multiple views of task lists, task search and personalized color themes.
Direct sync with no vendor server
The privacy policy says task data is not stored on Code Spark's servers. Google and Microsoft accounts sign in with OAuth 2.0, and the token is stored encrypted on the device.

Tasks.org

Offline lists with deep subtasks
Tasks, lists, tags and reminders are unlimited and need no account or internet connection. Filters, manual sorting and subtasks nested to any depth are included.
Recurring tasks and location reminders
Tasks can repeat and send notifications, and reminders can be tied to a location. Both are part of the free Android app.
Sync with services you already use
Google Tasks and Microsoft To Do connect for free. Sync through DAVx⁵, a CalDAV server, EteSync or DecSync CC needs an in-app subscription.
Tasks.org Cloud
The maker's CalDAV-based sync service adds list sharing with up to five guests, an email-to-task inbox and app passwords for clients such as Apple Reminders.
Desktop apps in alpha
Early-access apps for macOS, Windows and Linux sync with Tasks.org Cloud, Google Tasks, CalDAV and EteSync. One subscription unlocks both Android and desktop.
Open source without ads
The Android and desktop apps are licensed under the GNU GPLv3 and show no ads. Installs from F-Droid unlock in-app features without a subscription.

Plans

OneTask

  • Free$0

    The full app on iPhone, iPad, Mac, Android and Windows, connected to the user's own task accounts.

Tasks.org

  • Free$0

    The Android app with unlimited tasks, lists, tags and reminders, recurring tasks, and Google Tasks and Microsoft To Do sync.

  • Name-your-priceFrom $0.99

    per year, at a price you choose

    Unlocks all in-app features: custom themes and icons, sync through DAVx⁵, CalDAV and EteSync, and the desktop app. No Tasks.org Cloud.

  • Tasks.org Cloud$2.49

    per month, billed annually ($29.99); $2.99 billed monthly

    All name-your-price features plus Tasks.org Cloud sync between Android and desktop, list sharing and an email-to-task inbox.

Ways to pay less

OneTask

No public discounts listed.

Tasks.org

  • Annual discount

    About 16% off Tasks.org Cloud billed annually

    Tasks.org Cloud costs $2.99 a month billed monthly or $29.99 a year, which works out to $2.49 a month and about 16% less than twelve monthly payments.

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