Due alternatives · To-Do Lists
Open-source alternatives to Due
Due is not described as open source on its own site. 27 of the 123 other to-do list apps in this directory are open source, according to their own sites.
Due is a paid product, starting at $7.99 one-time for iPhone, iPad and Apple Watch; Mac is $14.99, sold separately. All of them are free or have a free plan.
27 tools · Listings checked up to Oct 9, 2026 · Where the facts come from
The 12 closest to Due
- Free
Planify
Free, open-source task manager for the Linux desktop
- Planify is free. Due starts at $7.99 one-time for iPhone, iPad and Apple Watch; Mac is $14.99, sold separately.
- Planify has a free plan. Due does not.
- Only Planify lists a Linux app.
- Only Due lists iOS and macOS apps.
- Free
Mindwtr
Free, open-source GTD task manager for desktop and mobile
- Mindwtr is free. Due starts at $7.99 one-time for iPhone, iPad and Apple Watch; Mac is $14.99, sold separately.
- Mindwtr has a free plan. Due does not.
- Only Mindwtr lists Windows, Linux and Android apps.
- Mindwtr is open source, according to its own site.
- Free plan · from $20/yr
HamsterBase Tasks
Open-source, local-first task manager with encrypted sync
- HamsterBase Tasks starts at $20 per year (Pro). Due starts at $7.99 one-time for iPhone, iPad and Apple Watch; Mac is $14.99, sold separately.
- HamsterBase Tasks has a free plan. Due does not.
- Only HamsterBase Tasks lists a web app.
- Only HamsterBase Tasks lists Windows, Linux and Android apps.
- Free
Reminders MenuBar
Open-source macOS menu bar app for Apple Reminders
- Reminders MenuBar is free. Due starts at $7.99 one-time for iPhone, iPad and Apple Watch; Mac is $14.99, sold separately.
- Reminders MenuBar has a free plan. Due does not.
- Only Due lists an iOS app.
- Reminders MenuBar is open source, according to its own site.
- Free
Super Productivity
Free, open-source to-do app with time tracking and a Pomodoro timer
- Super Productivity is free. Due starts at $7.99 one-time for iPhone, iPad and Apple Watch; Mac is $14.99, sold separately.
- Super Productivity has a free plan. Due does not.
- Only Super Productivity lists a web app.
- Only Super Productivity lists Windows, Linux and Android apps.
- Free plan · from €4/mo
Vikunja
Open-source task manager to self-host or use as a paid cloud
- Vikunja starts at €4 per month, or €40 billed yearly (Vikunja Cloud Personal). Due starts at $7.99 one-time for iPhone, iPad and Apple Watch; Mac is $14.99, sold separately.
- Vikunja has a free plan. Due does not.
- Only Vikunja lists a web app.
- Only Vikunja lists Windows, Linux and Android apps.
- Free plan · from $0.99/yr
Tasks.org
Open-source Android to-do list with CalDAV and Google Tasks sync
- Tasks.org starts at $0.99 per year (name-your-price subscription). Due starts at $7.99 one-time for iPhone, iPad and Apple Watch; Mac is $14.99, sold separately.
- Tasks.org has a free plan. Due does not.
- Only Tasks.org lists Android, Windows and Linux apps.
- Only Due lists an iOS app.
- Free
Taskwarrior
Free, open-source to-do list manager for the command line
- Taskwarrior is free. Due starts at $7.99 one-time for iPhone, iPad and Apple Watch; Mac is $14.99, sold separately.
- Taskwarrior has a free plan. Due does not.
- Only Taskwarrior lists a Linux app.
- Only Due lists an iOS app.
- Free
Todo.txt
Plain-text to-do list format with an open-source command-line tool
- Todo.txt is free. Due starts at $7.99 one-time for iPhone, iPad and Apple Watch; Mac is $14.99, sold separately.
- Todo.txt has a free plan. Due does not.
- Only Todo.txt lists Linux and Windows apps.
- Only Due lists an iOS app.
- Free
ToDoList
Free, open-source task outliner for Windows with Gantt and kanban
- ToDoList is free. Due starts at $7.99 one-time for iPhone, iPad and Apple Watch; Mac is $14.99, sold separately.
- ToDoList has a free plan. Due does not.
- Only ToDoList lists a Windows app.
- Only Due lists iOS and macOS apps.
- Free plan · from €5/mo
tududi
Open-source task and life organizer to self-host or use hosted
- tududi starts at €5 per person / month, or €50 per person / year (tududi Cloud). Due starts at $7.99 one-time for iPhone, iPad and Apple Watch; Mac is $14.99, sold separately.
- tududi has a free plan. Due does not.
- Only tududi lists a web app.
- Only Due lists iOS and macOS apps.
- Free plan · from $4.99/mo
Donetick
Open-source task and chore manager for households and groups
- Donetick starts at $4.99 per month, or $39.99 per year (Donetick Plus, US App Store). Due starts at $7.99 one-time for iPhone, iPad and Apple Watch; Mac is $14.99, sold separately.
- Donetick has a free plan. Due does not.
- Only Donetick lists a web app.
- Only Donetick lists an Android app.
Common questions
Is there an open-source alternative to Due?
Yes. Planify, Mindwtr, HamsterBase Tasks, Reminders MenuBar, Super Productivity, Vikunja, Tasks.org, Taskwarrior and 19 more are open source, according to their own sites.
Is Due open source?
Due is not described as open source on its own site. The listing was checked on Oct 5, 2026 against the pages it cites.
When was this checked?
Each listing shows its own date. On this page they run from Oct 5, 2026 to Oct 9, 2026. Vendors change prices and plans without notice, so confirm on their site before you buy.
This page is built from the listings. A tool is here because its listing says so, and the order is how close each is to Due: the alternatives its listing names first, then the tools that share the most features with it.