Calendar 365 vs MellowTask
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Calendar 365
This app offers a comprehensive calendar experience with lunar views, contact birthday reminders, and yearly overviews. Users can personalize the background and view the clock directly within the app. It also provides iPad support.
- Lunar View
- Contact birthday and anniversary support
- Yearly View
- Customizable background image
- Clock display
- iPad Support
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*** Upgrade Available Cause not pay the fees to Apple, Upgrade disabled for last few days. Now it's available. Calendar * Lunar View * Contact birthday anniversary support * Yearly View * Customize the background image * See clock * iPad Support
MellowTask
Organize your work using the Eisenhower Matrix to prioritize tasks by importance and urgency. Manage your to-do list with daily views, reminders, and detailed subtask management. Track your progress with statistics and sync with Apple Reminders.
- Eisenhower Matrix organization
- Today view for immediate tasks
- Detailed task management with subtasks
- Progress statistics and trends
- Home screen widgets
- iCloud Sync and Apple Reminders integration
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MellowTask is a task manager built around the Eisenhower Matrix, helping you organize work by importance and urgency. Sort tasks into Do, Plan, Delegate, and Exclude, then focus on what needs your attention first. See today’s tasks, upcoming deadlines, reminders, and completed items in one place. [KEY FEATURES] ■ Eisenhower Matrix Organize tasks into Do, Plan, Delegate, and Exclude based on importance and urgency. ■ Today View See tasks due today, reminders, completed items, and upcoming work in one focused view. ■ Calendar Review tasks by date and quickly organize tasks that do not have a scheduled date. ■ Detailed Task Management Break complex work into checklists, parent tasks, subtasks, and repeating schedules. ■ Focused Task List Open a dedicated list of incomplete Do tasks from the selected group. ■ Statistics Review your completion rate, streaks, weekly trends, weekday patterns, and task distribution across quadrants. ■ Home Screen Widgets Check dates, task status, and Eisenhower Matrix tasks without opening the app. ■ Sync and Integration Keep your tasks available with iCloud Sync and connect them with Apple Reminders. ■ Display Options Adjust the font style, display size, and task title appearance to suit your preferences. No account or sign-in is required to get started. Some features, including Apple Reminders Sync, are available with Pro.
Screenshots
Verdict
The clearest difference is review sentiment: MellowTask at 100% against Calendar 365's 28%. MellowTask also leads on rating (5.0 vs 2.9). Calendar 365's advantage is ads (none vs shown) and ratings volume (51 vs 3). On price, update cadence, in-app purchases and monetization model 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 365 sells 1 one-off in-app purchase and MellowTask sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
MellowTask holds the better App Store score, 5.0 against 2.9. That said, the two scores are not equally well evidenced: Calendar 365 has 51 ratings behind it against 3, so its average is the more settled of the two. Written reviews point the same way: 28% of Calendar 365's written reviews are positive against 100% of MellowTask's.
Calendar 365 ships an update every 2 weeks, MellowTask weekly. The most recent releases landed on September 30, 2026 and October 3, 2026 respectively.
| Parameter | Calendar 365 | MellowTask |
|---|---|---|
| Price | Free | Free |
| Rating | 2.9 (51 ratings) | 5.0 (3 ratings) — better |
| Positive reviews | 27.6% of reviews | 100.0% of reviews — better |
| Number of ratings | 51 — better | 3 |
| Update frequency | Every 2 weeks | Weekly — better |
| Ads | No — better | Yes |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Devices | iPhone, iPad, iPod — better | iPhone, Mac |
| Requires iOS | 4.3 — better | 17.0 |
| Further details — not scored | ||
| Size | 1 MB | 10 MB |
| Age rating | 4+ | 4+ |
| Developer | NO WOO KYOUNG | ChanGyu Kang |
Customer experience
Calendar 365
MellowTask
Bugs and requests
Calendar 365
Reported bugs
23 issues- App crashes immediately after opening
- App freezes when choosing events in settings
- Lost all data after update
- App does not open after update
- Holidays are on the wrong dates
Show 18 moreShow fewer
- Lunar calendar dates not displayed correctly
- Cannot add events
- Cannot add events due to privacy settings
- Cannot add Korean holidays
- Cannot add holidays from other countries
- Ad bar obstructs view of calendar
- App is slow and lags
- App crashes when opening
- Update caused instant crash
- Data from previous version not visible after update
- Cannot add events in privacy settings
- Event input is not convenient
- Cannot change label for custom fields
- Cannot see last two weeks of months due to ads
- Cannot see event details due to ads
- Next day transition removed
- Cannot input events for the next month
- App closes when clicking on something
Requested features
20 requests- Add ability to flip month to month
- View all events by month
- Keep holiday dates correctly
- View in landscape mode
- Better clock
Show 15 moreShow fewer
- Make 'upgrade' button work
- Add functions for adding events
- Ability to choose calendar for events
- Link up to Google Calendar
- Allow changing fonts/colors in YEAR View
- Add 'one week before' notification option
- Display monthly event list at a glance
- Faster data loading
- Add 'repeat annually lunar' option for birthdays
- Ability to change page
- Add memo section for notes
- Fix Korean holiday display
- Add ability to set recurring events by day of week
- Improve input usability
- Add more notification options
MellowTask
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Calendar 365
- Calendar 365 Upgrade$1.99
MellowTask
- MellowTask Pro$3.99
