Clackboard: Flip Clock
Scoreboard, Countdown & Widget
Free · In‑App Purchases · Designed for iPad. Not verified for macOS.
The clacking departure board from the station – as a clock, a message, a countdown or a scoreboard. Widgets for StandBy, bedside clock for iPhone Duo.
A real split-flap board on your iPhone: flip clock, message board, countdown and scoreboard in one. Every flap falls with gravity, catches the light, casts a shadow, hits the stop and bounces – just like the departure boards at the station.
IPHONE DUO
Your iPhone Duo becomes a bedside clock, and Clackboard works out how it is standing. Half-folded on a table, the clock stands on the upper half with a reflection below. Propped half-open on its edges, like a book stood up, the left side shows the hours and the right side the minutes, and the fold stays clear. As a tent, the clock uses the full width of the outer display. In the night hours the board turns amber, with no clacking and no seconds; on a table the lying half is a dimmer – swipe up or down. Without a charger, a quiet notice appears below 20 % battery. You can switch the night light off in Settings. With Pro, the Duo also shows a second time zone, one clock per half, and becomes a scoreboard pad: on the lying half each team gets a big field – tap for +1, swipe up for −1; propped on its edges, Home is on the left and Guest on the right. Nothing changes on other iPhone models.
CLOCK
Stand your iPhone sideways on its charger and it becomes a split-flap desk clock. 12 or 24 hours, with seconds and date. At night the board can dim by itself.
MESSAGE
"Coffee?", "Do not disturb", "Delayed by about 5 min" – type what the board should say and watch every flap run through the alphabet until your text stands.
COUNTDOWN
How long until your vacation, a birthday or the end of the workday? The board keeps count.
SCOREBOARD
Table tennis in the garden, the match on TV, a game night: two teams, their names, points and sets. Tap or swipe down for a point, pull the flap back up to take it away – every point is one flap.
WIDGETS & STANDBY
The clock, your message and your countdown on the Home Screen and in StandBy, the countdown also on the Lock Screen – your iPhone on the charger becomes a split-flap clock.
IPHONE & IPAD
One purchase for both. An iPad on the desk or on the wall makes a big departure board.
ON THE BIG SCREEN
Mirror your iPhone to the TV with AirPlay or a cable, and the whole room can read the board.
DELUXE IN 3D
Real plastic flaps, rendered live in 3D: light, shadows, reflections and a little wear, like a board that has hung in a station for years.
DESIGNS
Deluxe, Station, Airport, Night Train, Retro, Brass, Signal Red, White and Terminal. Pick one from the menu – swipe sideways to switch between clock, message, countdown and scoreboard.
CLACKBOARD PRO – BUY ONCE, KEEP FOREVER
• 8 more designs, including Deluxe in 3D
• Countdown, also as a widget
• Scoreboard with your own team names, also as a pad on iPhone Duo
• Second time zone on the clock
• Your own messages on rotation
• Video clips with sound and high-res images
• No subscription, Family Sharing included
No ads. No account. No data collected.
A Closer Look
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
New for iPhone Duo: Clackboard becomes a bedside clock that knows how your Duo stands: half-folded on a table, propped on its edges or as a tent. At night the board turns amber, with no clacking. With Pro: a second time zone on any iPhone and iPad, and a scoreboard pad on the Duo. Everything else stays as it was.
The developer, Kris Pierre Ludemann, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Kris Pierre Ludemann
- Size
- 4 MB
- Category
- Utilities
- Compatibility
Requires iOS 18.0 or later.
- iPhone
Requires iOS 18.0 or later. - iPad
Requires iPadOS 18.0 or later. - Mac
Requires macOS 15.0 or later and a Mac with Apple M1 chip or later.
- iPhone
- Languages
English and 6 more
- English, Dutch, French, German, Italian, Portuguese, Spanish
- Age Rating
4+
- 4+
- In-App Purchases
Yes
- Clackboard Pro $2.99
- Copyright
- © 2026 Kris Lüdemann
