Exactly What I Needed!
I was looking for a timer I could quickly control on my phone. Easily and quickly change speaker times, and give color warnings on the timer. This checked all of the boxes!
Free
About
This app provides a silent, visual countdown timer for speakers, with customizable color cues to indicate time remaining. It offers intuitive gesture controls for adjustments and can mirror the display to a larger screen.
✓Silent visual countdown
✓Customizable color stages
✓Gesture-based editing
✓External display mirroring
✓Never dims screen
✓Remembers settings
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What's New in Rostrum
1.3
September 16, 2026
A more readable setup screen. Larger type that follows your Dynamic Type setting, a proper iPad layout, and Start always within reach at the bottom of the screen. The clock now protects a talk in progress. While the timer is running, swipes no longer change the time — a hand steadying your phone can't rewrite a countdown mid-sentence. Pause, and the swipes work exactly as before: one finger for seconds, two for minutes, three for hours. Pinch in to leave the clock, from anywhere on the screen. And a reminder where you need it, thanks to a user who wrote in: a quiet line along the bottom of the clock names the key gestures — tap, double-tap, pinch to leave — whenever the timer is stopped, and for a few seconds after it starts. Mid-talk, the clock is bare. These improvements came from your feedback. Keep it coming — the support link below reaches a person.
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FAQ
What is Rostrum's main purpose?
Rostrum is designed to provide speakers with a silent, visual countdown timer. It uses color changes to indicate remaining time, allowing presenters to manage their speaking slots effectively without audible alerts.
How does Rostrum handle time adjustments?
Rostrum uses intuitive gestures for time adjustments. A single tap starts or pauses the timer. While paused, swipe with one finger for seconds, two for minutes, and three for hours, allowing for precise editing.
Can Rostrum be used with a larger screen?
Yes, Rostrum supports connecting to a larger display via AirPlay or USB-C. The timer will fill the external screen, while your phone acts as a remote control for starting, pausing, and adjusting the time.
Does Rostrum make any sounds?
No, Rostrum is designed to be silent by default. It contains no code that can produce sound, ensuring that your audience is never aware of the timer's presence.
What happens when time runs out in Rostrum?
When time expires, Rostrum's screen turns red and flashes briefly. It then continues to count upward, clearly showing the speaker how much time they have exceeded their allotted slot.
Is Rostrum available on multiple platforms?
Yes, Rostrum is available on the Mac App Store as well as for iPhone and iPad. This allows users to utilize the timer across different Apple devices.
Does Rostrum collect any user data?
No, Rostrum has no network code and does not collect any personal data. It is designed with privacy in mind, ensuring your information remains secure.
How often is Rostrum updated?
The latest version of Rostrum is 1.3, which was last updated on September 16, 2026. This indicates a recent update and ongoing support for the application.
