Suggestions appear as you type. Use the up and down arrows to choose one and Enter to open it.

This page's audience real numbers from our own analytics — open to see them
–Visitors
–Page views
–Clicks to vendors
–Time on page
–Reading now
Clicks to vendors, by tool
  • –
Top countries
  • –
Devices
  • –

– · counted by iTechGuides's own first-party analytics, bots removed, every figure rounded down · how we count

Head-to-head · Android Reminder Apps

Microsoft To Do vs MainTask

  • Updated Oct 2026
  • Both researched from official sources
  • 2 checks side by side
Higher score Microsoft To Do #5 in Android Reminder Apps 8.7/10 Free plan Free plan✓ 0 of 5 features Try Microsoft To Do
MainTask #8 in Android Reminder Apps 8.3/10 Free plan Free plan✓ 1 of 5 features Visit MainTask

Microsoft To Do leads on 0 checks, MainTask on 0, and 2 are even. Who comes out ahead on the 2 yes/no, price and count checks where we have data for both products. The editor score weighs everything else too.

Our verdict

  • Highest scoreMicrosoft To Do · 8.7/10
  • Free planboth
  • Most featuresMainTask · 1 of 5

Microsoft To Do scores higher on our rubric for android reminder apps: 8.7 against 8.3 out of 10; our editors rank them #5 and #8.

Microsoft To Do is the better fit for people who want dependable recurring personal reminders. MainTask is the better fit for android users seeking a free open-source task reminder.

  • Microsoft To Do fits best

    People who want dependable recurring personal reminders

  • MainTask fits best

    Android users seeking a free open-source task reminder

Advertiser disclosure: iTechGuides is reader-supported. Vendors can pay for top positions in our rankings and for a place on other products' pages, and we may earn a commission when you click some links. How we rank.

Side by side

Feature Microsoft To Do 8.7/10 Visit ↗ MainTask 8.3/10 Visit ↗
At a glance
Editor score 8.7 8.3
Ranking #5 in Android Reminder Apps #8 in Android Reminder Apps
Best for People who want dependable recurring personal reminders Android users seeking a free open-source task reminder
Pricing model Free Free
Starting price Free plan Free plan
Free plan ✓ ✓
Free trial — —
Deployment Cloud, Desktop, Mobile Mobile
Platforms Web, Windows, macOS, iOS, Android Android
Built for Solo, Small business Solo
Features Microsoft To Do 0/5 · MainTask 1/5
Recurring reminders Not checked yet ✓ (best)
Location reminders Not checked yet Not checked yet
Voice input Not checked yet Not checked yet
Offline use Not checked yet Not checked yet
Calendar sync Not checked yet Not checked yet
Specs
Platform coverage Not checked yet Android_only
Free task limit Not checked yet Not checked yet
Our review
Pros
  • Custom recurring due dates and task reminders
  • My Day helps organize priorities and task suggestions
  • Syncs with Outlook Tasks across web and major device platforms
  • Flexible fixed-day, weekly, and monthly recurring schedules
  • Notifications offer early alerts, snooze, and completion actions
  • On-device backups include task history; no account is required
Cons
  • Its listed integration is limited to Microsoft Outlook Tasks
  • Support channels listed are documentation only
  • Work and school access may require eligible Microsoft 365 and Exchange Online licensing
  • Android only, with no cross-platform access
  • Requires Android 8.0 or newer
  • No listed integrations for connecting tasks to other services
Our verdict

Microsoft To Do is a personal task-management app for organizing work into multiple lists and planning daily priorities with My Day. It suits people who want recurring reminders and a straightforward way to keep personal tasks organized,…

Read the review →

MainTask is an open-source Android app for keeping track of recurring maintenance and personal routines, such as watering plants, changing filters, or checking a car. It suits people who want reminders on one Android device without an…

Read the review →
  1. Microsoft To DoAndroid Reminder Apps 8.7Free plan
  2. MainTaskAndroid Reminder Apps 8.3Free plan

Strengths and trade-offs

  • Microsoft To Do — where it wins

    • Custom recurring due dates and task reminders
    • My Day helps organize priorities and task suggestions
    • Syncs with Outlook Tasks across web and major device platforms

    Where it doesn't

    • Its listed integration is limited to Microsoft Outlook Tasks
    • Support channels listed are documentation only
    • Work and school access may require eligible Microsoft 365 and Exchange Online licensing
  • MainTask — where it wins

    • Flexible fixed-day, weekly, and monthly recurring schedules
    • Notifications offer early alerts, snooze, and completion actions
    • On-device backups include task history; no account is required

    Where it doesn't

    • Android only, with no cross-platform access
    • Requires Android 8.0 or newer
    • No listed integrations for connecting tasks to other services

More comparisons

Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

Last updated · How we research and update