Comparison

Kurun vs 99캘린더

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

Head to head
About

Kurun

Visualize your entire day as a single pie chart to understand where your time is spent. Easily identify time sinks, imbalances, and gaps in your schedule. Organize tasks and log activities directly within the app.

Highlights
  • Full 24-hour pie chart visualization
  • Color-coded activity tracking
  • Spot untracked time gaps
  • Customizable activity categories
  • Built-in to-do list
  • Stopwatch and timer for direct logging
Features
Read full description

Kurun turns your entire day into a single pie chart — so you can see exactly where your time goes, without scrolling through endless lists. Why a pie chart? Most calendar and to-do apps stack your schedule top to bottom. But a vertical list can't show you the full picture. Kurun fits all 24 hours into one circle. The moment you look at it, you just get it: - That "quick" social media check? It's a surprisingly big slice. - Gaps in your day show up as empty space — no hiding from lost time. - More time resting than working? The imbalance is obvious at a glance. Before you analyze the numbers, you feel the shape of your day. That's the power of the circle. Does this sound familiar? - You were busy all day, but nothing feels done - You can't quite remember how you spent the last 24 hours - You have no idea how much time you lose to scrolling or breaks - You want better balance between work, study, and sleep - You know something's off, but don't know where to start What you can do with Kurun - Visualize your full 24 hours in one pie chart - Color-code activities and tasks for instant clarity - Spot untracked gaps in your day at a glance - Create custom categories — study, work, sleep, anything - Review each day and catch time imbalances early - Organize your tasks with the built-in to-do list - Use the built-in stopwatch and timer to log time directly to your timeline Perfect for - Anyone building better time management habits - Students tracking study sessions and focus time - Professionals looking to improve work-life balance - Fans of time tracking, life logging, or habit journaling - Anyone who prefers visual records over written notes Log it simply. See it clearly. Feel how you spend your time — with Kurun. Some features (To-Do, Pomodoro Timer, and more) are available with a Pro plan (in-app purchase). Terms of Service:https://scented-cross-231.notion.site/Kurun-Terms-of-Use-32b71e35e68d80249cc0c7525119a60e?source=copy_link Privacy Policy:https://scented-cross-231.notion.site/Kurun-Privacy-Policy-32b71e35e68d8071a52dd5e2f4886d64?source=copy_link

About

99캘린더

Features
Read full description

99Calendar is a schedule management app that brings together your timetable, daily timeline, and calendar in one place. Organize repeating weekly schedules in a timetable view, follow your day in a timeline view, and check date-based plans in the calendar. You can turn schedule sets on or off to focus only on what you need, and view timetable items together with calendar events. Features Weekly timetable-based schedule management Daily timeline view Turn schedule sets on or off View timetable items and calendar events together Import and export support Theme options Counter features for routine tracking 99Calendar is designed to help you manage everyday schedules in a simple and lightweight way. Some counter features are optional personal logging tools. Health or cycle-related information is for personal reference only and is not intended for medical diagnosis, treatment, or guidance.

Screenshots

Kurun4 screens
99캘린더4 screens

Verdict

The call

The clearest difference is price: Kurun at Free against 99캘린더's $1.99. Kurun also leads on iOS requirement (15.1 vs 17.0). 99캘린더's advantage is in-app purchases (none vs 5) and update cadence (every 4 days vs fortnightly). On ads and device support 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

Kurun is free to download; 99캘린더 costs $1.99 up front. Kurun sells 5 in-app purchases, starting at $4.99 per month. 99캘린더 asks for nothing beyond the download.

UpkeepUpdate frequency

Kurun ships an update fortnightly, 99캘린더 every 4 days. Both last shipped on November 5, 2026.

Scorecard4 real differences · 4 level
Kurun versus 99캘린더: the parameters behind the verdict, then further details
ParameterKurun99캘린더
PriceFree — better$1.99
Positive reviews80.0% of reviews—
Update frequencyFortnightlyEvery 4 days — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPod — betteriPhone
Requires iOS15.1 — better17.0
Further details — not scored
Size56 MB5 MB
Age rating4+4+
DeveloperKYOSUKE WATANABEHWAN LEE

In-app purchases

5 purchases

Kurun

Subscriptions3
  • Kurun Pro Monthly$4.991 Month
  • Pro$19.991 Year
  • Kurun Pro Yearly3 Days trial$34.991 Year
One-time2
  • Kurun Pro Lifetime$39.99
  • Kurun Pro Lifetime$79.99
None

99캘린더

No in-app purchases

Questions

Is Kurun free?
Kurun is free to download, with in-app purchases available.
Is 99캘린더 free?
99캘린더 costs $1.99, with no in-app purchases.
Do Kurun or 99캘린더 have ads?
Neither Kurun nor 99캘린더 shows ads.
Which is updated more often, Kurun or 99캘린더?
Kurun ships an update fortnightly, and 99캘린더 every 4 days. Most recently, Kurun was updated on November 5, 2026 and 99캘린더 on November 5, 2026.

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