One Tasks vs Calendar Pro+
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- Subtask creation
- Due dates and reminders
- Widget support
- Google Tasks sync
- Outlook/Office 365 sync
- iCloud Reminders sync
- CalDAV provider integration
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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.
Calendar Pro+
This app offers a streamlined and intuitive way to manage your schedule, tasks, and events. It features smart reminders, multiple calendar views, and color-coding to help you stay organized and focused on what matters.
- Streamlined design
- Context-aware long press menus
- Smart reminders
- Multiple calendar views (Day, Week, Month, List, Year)
- Now and Next Home Screen widget
- Color-coded calendars
- Time-zone aware scheduling
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Calendar Pro+ is the smarter, cleaner, more intuitive way to take control of your time. Whether you're juggling work, family, travel, or personal goals, Calendar Pro+ helps you stay organized with clarity and confidence. Why You'll Love It Beautiful, streamlined design that makes your schedule feel lighter, not louder Day, Event and Task long press menus that are context aware. Gives you the information and actions you need at your fingertips Smart reminders that keep you ahead of deadlines without overwhelming you Powerful views — Day, Week, Month, List AND a full calendar year*! — all crafted for quick scanning A Now and Next widget for your Home Screen Color-coded calendars for effortless separation of work, personal, and shared plans Time-zone aware scheduling for travelers and remote teams Built for Real Life From planning your week to tracking birthdays, appointments, workouts, and everything in between, Calendar Pro+ adapts to your rhythm. It's fast, reliable, and thoughtfully designed to help you focus on what matters. * Year view is only available on tablets and desktops, sorry! End User Licence Agreement https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is in-app purchases: One Tasks at none against Calendar Pro+'s 4. One Tasks also leads on ratings volume (257 vs 4) and device support (4 vs 2). Calendar Pro+'s advantage is update cadence (weekly vs every 4 weeks) and rating (5.0 vs 4.8). On price, ads 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
Both are free to download. Calendar Pro+ sells 4 in-app purchases, starting at $0.99 per month. One Tasks asks for nothing beyond the download.
Calendar Pro+ holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: One Tasks has 257 ratings behind it against 4, so its average is the more settled of the two.
One Tasks ships an update every 4 weeks, Calendar Pro+ weekly. The most recent releases landed on September 21, 2026 and September 19, 2026 respectively.
| Parameter | One Tasks | Calendar Pro+ |
|---|---|---|
| Price | Free | Free |
| Rating | 4.8 (257 ratings) | 5.0 (4 ratings) — better |
| Positive reviews | 88.9% of reviews | — |
| Number of ratings | 257 — better | 4 |
| Update frequency | Every 4 weeks | Weekly — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Devices | iPhone, iPad, iPod, Mac — better | iPhone, iPad |
| Requires iOS | 15.0 — better | 16.0 |
| Further details — not scored | ||
| Size | 60 MB | 51 MB |
| Age rating | 12+ | 4+ |
| Developer | Code Spark | johnhair.com |
Customer experience
One Tasks
Calendar Pro+
In-app purchases
One Tasks
No in-app purchases
Calendar Pro+
- Monthly Subscription3 Days trial$0.991 Month
- Quarterly Subscription3 Days trial$1.993 Months
- Annual Subscription7 Days trial$4.991 Year
- All Features, Forever$9.99
Questions
Is One Tasks free?
Is Calendar Pro+ free?
Which has better reviews, One Tasks or Calendar Pro+?
Do One Tasks or Calendar Pro+ have ads?
Which is updated more often, One Tasks or Calendar Pro+?
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