Comparison

One Tasks vs CalendarBridge

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

One Tasks

Organize your life with a powerful task manager that syncs across devices. Create detailed to-do lists with subtasks, set deadlines, and receive timely reminders. Leverage widgets for quick access and integrate with popular calendar and task services.

Highlights
  • Subtask creation
  • Due dates and reminders
  • Widget support
  • Google Tasks sync
  • Outlook/Office 365 sync
  • iCloud Reminders sync
  • CalDAV provider integration
Features
Read full description

Stay on top of every task, anywhere. Seamlessly manage your to-do lists with the app trusted by millions — complete with subtasks, due dates, reminders, and handy widgets. Sync effortlessly with Google Tasks, Outlook, Office 365, iCloud Reminders, and One Calendar. Prefer more control? The app also integrates with any 3rd-party CalDAV providers, giving you full ownership of your data.

About

CalendarBridge

This app unifies your scheduling by syncing availability across multiple calendars in real-time. View and manage all your events from a single interface, ensuring you never miss an update or double-book. Share your availability easily with others.

Highlights
  • Real-time availability sync
  • Unified calendar view
  • Edit events across all accounts
  • Shareable scheduling links
  • Booking page creation
  • Patented privacy technology
Features
Read full description

CalendarBridge is the market leader in calendar syncing and unified scheduling. CalendarBridge keeps all of your calendars’ availability synced in real time and shows them in one unified calendar. With CalendarBridge you always know your availability is up to date across all of your calendars. Connect Google, Outlook, Apple, CalDAV and more so you can see every event together and make edits that update instantly across all of your accounts and devices. No more switching between apps, missing updates, or worrying about double bookings. Whether you’re tracking work meetings, family plans, school events, or personal appointments, CalendarBridge keeps everything accurate, connected and easy to manage. Our patented privacy technology ensures every update is accurate, private, and automatic. With CalendarBridge, you can: - Sync availability across multiple calendars in real-time - View and edit all connected calendars from a single Unified Calendar - Share availability with scheduling links, or a booking page Download CalendarBridge today and experience the easiest way to manage all your calendars in one place. The calendar sync app you never knew you needed, and the one you’ll wonder how you lived without. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://calendarbridge.com/terms-and-privacy/

Screenshots

One Tasks4 screens
CalendarBridge4 screens

Verdict

The call

The clearest difference is in-app purchases: One Tasks at none against CalendarBridge's 6. One Tasks also leads on ratings volume (257 vs 7) and rating (4.8 vs 4.6). CalendarBridge's advantage is update cadence (every 6 days vs every 4 weeks) and review sentiment (100% vs 89%). On price, ads, device support and iOS requirement there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. CalendarBridge sells 6 in-app purchases, starting at $5.00 per month. One Tasks asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

One Tasks holds the better App Store score, 4.8 against 4.6. That said, the two scores are not equally well evidenced: One Tasks has 257 ratings behind it against 7, so its average is the more settled of the two. Written reviews complicate that: 89% of One Tasks's written reviews are positive against 100% of CalendarBridge's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

One Tasks ships an update every 4 weeks, CalendarBridge every 6 days. The most recent releases landed on September 21, 2026 and September 6, 2026 respectively.

Scorecard6 real differences · 4 level
One Tasks versus CalendarBridge: the parameters behind the verdict, then further details
ParameterOne TasksCalendarBridge
PriceFreeFree
Rating4.8 (257 ratings) — better4.6 (7 ratings)
Positive reviews88.9% of reviews100.0% of reviews — better
Number of ratings257 — better7
Update frequencyEvery 4 weeksEvery 6 days — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPad, iPod, Mac — betteriPhone, iPad, iPod
Requires iOS15.0 — better15.1
Further details — not scored
Size60 MB46 MB
Age rating12+4+
DeveloperCode SparkCal Bridge Inc

Customer experience

One Tasks

All ratings257 ratings
Positive96.5%
Neutral2.7%
Negative0.8%
Written reviews9 reviews
Positive88.9%
Neutral11.1%
Negative0.0%

CalendarBridge

All ratings7 ratings
Positive85.7%
Neutral14.3%
Negative0.0%
Written reviews2 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

One Tasks

No in-app purchases

6 purchases

CalendarBridge

Subscriptions6
  • Basic Monthly$5.001 Month
  • Premium Monthly$10.001 Month
  • Pro Monthly$40.001 Month
Show 3 more
  • Basic Yearly$48.001 Year
  • Premium Yearly$96.001 Year
  • Pro Yearly$384.991 Year

Questions

Is One Tasks free?
One Tasks is free to download, with no in-app purchases.
Is CalendarBridge free?
CalendarBridge is free to download, with in-app purchases available.
Which has better reviews, One Tasks or CalendarBridge?
One Tasks is rated higher. One Tasks averages 4.8 out of 5 from 257 ratings, while CalendarBridge averages 4.6 from 7 ratings.
Do One Tasks or CalendarBridge have ads?
Neither One Tasks nor CalendarBridge shows ads.
Which is updated more often, One Tasks or CalendarBridge?
One Tasks ships an update every 4 weeks, and CalendarBridge every 6 days. Most recently, One Tasks was updated on September 21, 2026 and CalendarBridge on September 6, 2026.

Other comparisons