DayCommand vs KKUK
Price, ratings, monetisation and update history for both apps, side by side β with what reviewers say about each.
DayCommand
Read full descriptionHide full description
DayCommand understands what you type or say β no forms, no menus, no tapping through a dozen fields. "standup every weekday 9am" creates a recurring event on every calendar you've connected. "move lunch to 3pm" finds it and moves it. "cancel gym tomorrow" removes it β with an undo. "am I free at 3?" and "find 30 min for a run" answer questions your calendar app has never been able to. WHAT MAKES IT DIFFERENT β’ On-device, not cloud. Parsing runs entirely on your phone β no message limits, no monthly quota, no round-trip to a server. It works on a plane. β’ One command, every calendar. Connect Apple, Google, and Outlook calendars at once, and a single command writes to all of them β moves, renames, and deletes fan out everywhere automatically, so your calendars never drift out of sync with each other. β’ Real mutations, not just creation. Most "smart" calendar apps can only parse new events. This one moves, renames, resizes, and cancels existing events by fuzzy-matched title β and answers scheduling questions directly. β’ Genuinely private. Your calendar data goes only to the accounts you connect. Voice dictation runs on-device (Apple CoreML). Nothing about how the app understands your commands is sent anywhere. FEATURES β’ Natural-language create, move, rename, resize, and cancel β with a confirm card before anything destructive happens β’ Recurring events: daily/weekly/monthly, intervals, ordinal weekdays ("first Monday of the month"), end dates β’ Free-time finder: "find 30 min for a run" returns bookable time slots β’ 60-day agenda with a week strip, live parse preview as you type β’ Voice dictation, fully on-device β’ Home Screen widgets β’ Siri quick-add β’ Conflict detection when two events would overlap β’ Time-zone awareness for events created while traveling DayCommand connects to Apple Calendar (iCloud), Google Calendar, and Outlook/Microsoft 365 Calendar. Connect one or all three β everything works the same either way.
KKUK
Track your habits by stamping them on a calendar. This app allows you to create custom stamps with colors and emojis, and view your progress through various reports. It offers lock screen and widget integration for easy access.
- Stamp habits on a calendar
- Customizable stamps with colors and emojis
- Lock screen and widget integration
- Journal entries with photos and notes
- Weekly, monthly, and yearly reports
- CSV export of reports
- Home screen widgets
Read full descriptionHide full description
A to-do list erases what you finish. KKUK does the opposite β every day you follow through leaves one more stamp. Press one stamp today. Then watch them stack up on the calendar. β Press it without opening the app Open the app once and today's board appears on the Lock Screen and in the Dynamic Island. For a while after that you can press a stamp right there, without going back to the app. You can also press one from a Home Screen widget. β A press, not a tap One quick tap won't do it. Hold your finger until the ink fills all the way, and the stamp lands. Slide your finger aside to cancel a press you didn't mean. β Make your own stamp Build a stamp from 16 colors and an emoji. Which weekdays, how many times a day, which group it belongs to, and when it should remind you β set all of it per stamp. β See what you've kept Β· Calendar β every stamp you pressed this month on a single board. Β· Journal β leave a note and a photo beside the stamp. Β· Report β see how well you kept up by week, by month, and by year. The period you're looking at can be exported as a CSV file. Β· Monthly review β look back on the month that just ended. β Seven Home Screen widgets Today's Stamps Β· Recent check-ins Β· Calendar Β· Weekly report Β· Monthly report Β· Group weekly Β· Large calendar. Pick any size and keep it on your Home Screen. β Make it yours Twenty bundled typefaces β four drawn for Latin text, sixteen Korean. Light, dark, or follow your device. Portrait only. β Free to use 3 stamps, 3 groups, the last 30 days of records, this week's and this month's report, and the Today's Stamps widget. Watch a rewarded ad all the way through to add one more stamp, and the slot you earned stays yours. β KKUK Premium unlocks Β· Unlimited stamps and groups Β· Every record, including anything older than 30 days Β· Past reports and past monthly reviews Β· All seven widgets Β· iCloud sync to continue on another device Β· No ads β Subscription details Β· KKUK Premium Monthly β $1.99 / month Β· KKUK Premium Yearly β $12.99 / year Subscriptions renew automatically. Unless canceled at least 24 hours before the current period ends, a subscription renews at the same price, and payment is charged to your Apple Account at confirmation of purchase. You can manage or cancel subscriptions in Settings > Apple Account > Subscriptions on your device. Terms of Use https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy https://kkuk-app.web.app/en/privacy/ β Your records stay on your device Stamps, notes, and photos are stored on your device. There is no account and no sign-in. iCloud sync is off by default, and when you turn it on, records are copied only to your own private iCloud database. The developer cannot read them and does not keep them on a separate server.
Screenshots
Verdict
The clearest difference is in-app purchases: DayCommand at none against KKUK's 2. DayCommand also leads on ads (none vs shown). KKUK's advantage is update cadence (every 5 days vs every 4 weeks). On price, device support and iOS requirement there is nothing between them.
Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS
Both are free to download. KKUK sells 2 in-app purchases, starting at $1.99 per month. DayCommand asks for nothing beyond the download.
DayCommand ships an update every 4 weeks, KKUK every 5 days. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.
| Parameter | DayCommand | KKUK |
|---|---|---|
| Price | Free | Free |
| Positive reviews | β | 100.0% of reviews |
| Update frequency | Every 4 weeks | Every 5 days β better |
| Ads | No β better | Yes |
| In-app purchases | No β better | Yes |
| Monetization | β | Free with in-app purchases |
| Devices | iPhone | iPhone, Apple Watch β better |
| Requires iOS | 17.0 β better | 18.0 |
| Further details β not scored | ||
| Size | 16 MB | 82 MB |
| Age rating | 4+ | 4+ |
| Developer | Sadd Tech LLC | Sangcheol Kim |
In-app purchases
DayCommand
No in-app purchases
KKUK
- KKUK Premium Monthly$1.991 Month
- KKUK Premium Yearly$12.991 Year









