Absolute Board Calendar vs OwlCal
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Absolute Board Calendar
This app allows users to plan their day and take notes through drawing and handwriting. It offers unlimited pages for daily entries and organizes them chronologically, providing a unique and convenient way to manage your life.
- Drawing and handwriting daily planning
- Unlimited pages for notes and ideas
- Calendar from 1900 to 2043
- Customizable holidays
- Solar and lunar date conversion
- Unlimited board size
- Email drawing snapshots
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Absolute Board Calendar is the first functional app derived from Absolute Board which is the best quality drawing and handwriting App in AppStore. ## Absolute Board ## * April 2011 - "New & Noteworthy" (Productivity) application on the American App Store * * April 2011 - "What's Hot" (Productivity) application on the American App Store * * April 2011 - "Staff Favorites" (All) application on the Korean App Store * * April 2011 - "No. 1 Free App" (Productivity) application on the Korean App Store * Our new app 'Absolute Board Calendar' is innovating functional app beyond other calendar app. Just keep your everyday life through drawing & handwriting. You can draw & write unlimited quantity of pages in a day. Absolute Board Calendar provide you sorting pages day by day. It's so simple and convenience. Through the high speed and quick response that you're already experiencing in Absolute Board, Now you can create your own genuine diary and idea note organized daily. With Absolute Board Calendar, make your powerful functional calendar which was never existed before. ▶ Drawing &handwriting type daily planning + idea note (Unlimited quantity) ▶ Calendar from 1900 to 2043 with presenting solar & lunar date. ▶ Customized holiday setting ▶ Converting solar - lunar date of special day ▶ Day count ▶ Unlimited board size ▶ Unlimited color choice for pen & background ▶ Path traceable eraser ▶ Ability to email snapshot of your drawing ▶ Zooming in/out & moving with two fingers ▶ Undo/Redo functions ▶ Import a Photo ▶ Print Snapshot (Air Print)
OwlCal
This app centralizes family schedules with color-coded calendars for each member. It allows for shared shopping and to-do lists, meal planning, and integration with existing calendars. It also supports creating profiles for children without requiring individual accounts.
- Color-coded family calendars
- Shared shopping and to-do lists
- Integrated meal planner
- Child profiles without accounts
- Subscription to external calendars
- Event reminders with attendee details
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OwlCal keeps your whole family on one calendar, color-coded so a glance tells you whose day it is. EVERYONE, ONE CALENDAR Give each person a color. See the family in Month, Week, Day, and List views, and tap a name to filter to just them. KIDS WITHOUT ACCOUNTS Add children as profiles with no email or password. On a shared device you switch into their profile like a streaming app, and everything they add is theirs. SHOPPING & TO-DO LISTS A list per store. Assign a whole list or a single item to someone. Check things off and see who did it and when. MEAL PLANNER Breakfast, lunch, and dinner on one weekly board, per person. SUBSCRIBE TO YOUR CALENDARS Fold in your Google, Outlook, or Apple calendars. Put each on the right person's color and choose who sees it. REMINDERS THAT SAY WHO A push before events with the time, the person, and a tappable address. Start with a 30-day free trial. After that, OwlCal is $9.99 per year for up to 6 family members. SUBSCRIPTION DETAILS OwlCal Yearly: $9.99 per year (1-year auto-renewing subscription) after a 30-day free trial. Payment is charged to your App Store account; the subscription renews automatically unless cancelled at least 24 hours before the period ends. Manage or cancel in Settings > Apple Account > Subscriptions. Privacy Policy: https://owlcal.com/privacy Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is price: OwlCal at Free against Absolute Board Calendar's $2.99. OwlCal also leads on rating (5.0 vs 3.6) and update cadence (every 4 days vs every 2 months). Absolute Board Calendar's advantage is in-app purchases (none vs 1) and iOS requirement (12.0 vs 15.0). On ratings volume and ads 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
OwlCal is free to download; Absolute Board Calendar costs $2.99 up front. OwlCal sells 1 in-app purchase, starting at $9.99 per year. Absolute Board Calendar asks for nothing beyond the download.
OwlCal holds the better App Store score, 5.0 against 3.6. Both are backed by a comparable volume of ratings — 8 and 9 respectively. Written reviews point the same way: 74% of Absolute Board Calendar's written reviews are positive against 100% of OwlCal's.
Absolute Board Calendar ships an update every 2 months, OwlCal every 4 days. The most recent releases landed on November 1, 2026 and October 31, 2026 respectively.
| Parameter | Absolute Board Calendar | OwlCal |
|---|---|---|
| Price | $2.99 | Free — better |
| Rating | 3.6 (8 ratings) | 5.0 (9 ratings) — better |
| Positive reviews | 74.1% of reviews | 100.0% of reviews — better |
| Number of ratings | 8 | 9 — better |
| Update frequency | Every 2 months | Every 4 days — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Devices | iPad | iPhone, iPad, iPod — better |
| Requires iOS | 12.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 8 MB | 42 MB |
| Age rating | 4+ | 4+ |
| Developer | Hyeoseong Hwang | SignOut |
Customer experience
Absolute Board Calendar
OwlCal
In-app purchases
Absolute Board Calendar
No in-app purchases
OwlCal
- OwlCal Yearly$9.991 Year








