SmartCalendar(Kor) vs OFFLIGHT
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
SmartCalendar(Kor)
This app offers a localized calendar management experience for Korea, featuring lunar calendar views and seamless integration with your iPhone's existing calendar. Its user-friendly interface makes organizing your schedule effortless.
- Korean localization
- Lunar calendar view
- iPhone calendar integration
- Convenient interface
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- 한국에 현지화 된 일정관리 앱 - 음력보기 기능 - 아이폰 캘린더의 일정연동 - 편리한 인터페이스
OFFLIGHT
This daily planner helps you manage your tasks efficiently. Create, plan, complete, and delete tasks with simple gestures. Unlock beautiful wallpapers as a reward for completing all your tasks.
- Create tasks
- Plan tasks with swipe gestures
- Complete tasks
- Delete tasks
- Unlock reward wallpapers
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Discover the all-in-one daily planner OFFLIGHT now available on mobile, along with the Windows and Mac desktop apps and web app. Currently, the mobile version offers only some of the features available on the PC version. Features Available in the Mobile Version 1. Create Tasks Easily and quickly create tasks using the task creation button located at the bottom right of any page. 2. Plan Tasks Swipe right on a task to plan it. Swiping all the way to the right allows you to schedule it for today from your inbox, and you can easily postpone it to tomorrow from your today's task list. 3. Complete Tasks Tap the completion button on the left side of a task to mark it as complete. Once all tasks are completed, you will be rewarded with a beautiful wallpaper to enjoy. 4. Delete Tasks Swipe left on a task to quickly delete it. Features Available on PC but Not Yet on Mobile 1. You can view lists created on PC in the mobile version, but you cannot create new lists. Please create lists in the PC version. 2. If you have integrated Slack, Gmail, Notion, Linear, or Todoist on the PC, you can view the integrated tasks in the mobile version, but you cannot add new integrations. 3. And the calendar and time tracking feature that can be used in PC version are not available in mobile version yet.
Screenshots
Verdict
The clearest difference is review sentiment: SmartCalendar(Kor) at 86% against OFFLIGHT's 33%. SmartCalendar(Kor) also leads on rating (4.2 vs 1.0) and ratings volume (14 vs 1). OFFLIGHT's advantage is update cadence (weekly vs every 3 weeks). On price, ads, 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. Neither carries in-app purchases, so what you see is what you pay.
SmartCalendar(Kor) holds the better App Store score, 4.2 against 1.0. That said, the two scores are not equally well evidenced: SmartCalendar(Kor) has 14 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 86% of SmartCalendar(Kor)'s written reviews are positive against 33% of OFFLIGHT's.
SmartCalendar(Kor) ships an update every 3 weeks, OFFLIGHT weekly. The most recent releases landed on November 6, 2026 and November 4, 2026 respectively.
| Parameter | SmartCalendar(Kor) | OFFLIGHT |
|---|---|---|
| Price | Free | Free |
| Rating | 4.2 (14 ratings) — better | 1.0 (1 ratings) |
| Positive reviews | 85.8% of reviews — better | 33.3% of reviews |
| Number of ratings | 14 — better | 1 |
| Update frequency | Every 3 weeks | Weekly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPod | iPhone, iPod |
| Requires iOS | 11.0 — better | 14.0 |
| Further details — not scored | ||
| Size | 40 MB | 94 MB |
| Age rating | 4+ | 4+ |
| Developer | Minuk Kim | OFFLIGHT Inc. |
Customer experience
SmartCalendar(Kor)
OFFLIGHT
Bugs and requests
SmartCalendar(Kor)
Reported bugs
19 issues- App crashes after iOS updates
- App does not open after iOS updates
- Data is lost after iOS updates
- Schedules not saving
- App closes when adding content
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- Syncing fails
- App crashes when editing dates
- App crashes when sending schedules
- App crashes when opening list button
- App crashes when editing schedules in iOS 5
- App crashes in horizontal mode during schedule addition
- Repeating schedules not displaying correctly
- Badge count not updating
- Data deleted after update and calendar sync
- Cannot change time without changing date
- Cannot set start and end dates in search
- Cannot read schedules from Outlook Exchange
- App icon badge not showing schedule count
- Single day edit in repeating schedule modifies the start date's event
Requested features
26 requests- Update for latest iOS versions
- Backup and restore functionality
- Login-based backup
- Screen size adjustment
- Lunar calendar feature
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- Paid version for continued updates
- Add photo feature
- Widget for daily schedule
- Share schedules with iPhone calendar
- Optimize for iPhone X
- Improve interface for date/time input
- Add 100-day repetition option
- Add ability to mark dates with circles
- Add to-do list function
- Improve app icon design
- Add more themes
- Add location tagging
- Add search functionality
- Add iPad version
- Add iCloud sync
- Display daily schedule count on icon
- Fix badge display issues
- Support Outlook Exchange
- Improve sync for multiple groups
- Add horizontal mode for schedule editing
- Add more color options for themes
OFFLIGHT
Not enough reviews yet to summarise bugs or requests.
In-app purchases
SmartCalendar(Kor)
No in-app purchases
OFFLIGHT
No in-app purchases
