# i Semaphore Pro - traffic light with countdown > Timed activity manager with customizable color sequences and countdowns. (iPhone/iPad app by Massimiliano Borrelli.) - Source: https://appshunter.io/ios/app/i-semaphore-pro-traffic-light-with-countdown/id628068001 (this page in markdown: same URL + `.md`) - Developer: [Massimiliano Borrelli](https://appshunter.io/developer/446113431) - Category: Utilities, Sports - Price: $2.99 - Age rating: 4+ - Requires: iOS 6.0 · 36 MB - Languages: American English, Italian, European Spanish - Released: 2013-04-05 - Data updated: 2026-06-10 - Monetization: paid - User reviews in markdown: https://appshunter.io/ios/app/i-semaphore-pro-traffic-light-with-countdown/id628068001/reviews.md ## What is i Semaphore Pro? △ △ △ △ △ iSemaphore Pro △ △ △ △ △ iSemaphore Pro is a very useful application for those who must perform (or have to make perform) some actions within a limited period of time. For example, if you practice the "Archery" or a similar sport, where you perform a number of shots (usually 3) within a number of seconds (usually 120), iSemaphore Pro is the application for you. Very useful for training of any kind, or for parties and play time, exhibitions and many other situations where you need something measuring the passage of time. FUNCTIONS OF ISEMAPHORE: - Set the preroll time, Green, Yellow, Red - Set if part with Green and ending with Red or vice versa - Enter a different sound for each color - Function pause and restart - Decide whether to show countdown or not ## Key features - Customizable preroll, green, yellow, and red times - Set start with green or red - Unique sound for each color - Pause and restart functionality - Option to show or hide countdown ## Recent user reviews (1 of 1) All indexed reviews: https://appshunter.io/ios/app/i-semaphore-pro-traffic-light-with-countdown/id628068001/reviews.md ### 2/5 — Not impressed *2017-07-08* For an App that should be so simple I'm not impressed. 1. Seems to have a glitch whereby even though set give sounds at given times, nothing is heard?! 2. Very poor that for a paid for App it still requires you to decline the adverts before each rerun of the timer. Not recommended. ## Frequently asked questions about i Semaphore Pro ### What is i Semaphore Pro used for? i Semaphore Pro is designed to help users manage activities with strict time limits. It's particularly useful for sports training, games, or any scenario where precise timing of color sequences is needed. ### How much does i Semaphore Pro cost? i Semaphore Pro is a paid application, available for $2.99. ### Does i Semaphore Pro have ads? No, i Semaphore Pro is ad-free, providing an uninterrupted user experience. ### What devices is i Semaphore Pro compatible with? i Semaphore Pro is compatible with iPhone, iPad, and iPod devices. ### Can I customize the timing for each color in i Semaphore Pro? Yes, you can set the duration for the preroll, green, yellow, and red light phases independently within i Semaphore Pro. ### Does i Semaphore Pro allow for different sounds for each color? Yes, i Semaphore Pro allows you to assign a unique sound to each color (green, yellow, red) for auditory cues. ### How often is i Semaphore Pro updated? The latest version of i Semaphore Pro is 3.1, and it was last updated on May 15, 2016. Updates may be infrequent. ### Is i Semaphore Pro suitable for children? i Semaphore Pro has an age rating of 4+, making it suitable for younger users under parental guidance. ## Version history (last 4 releases) ### 3.1 — 2016-05-15 This app has been updated by Apple to display the Apple Watch app icon. What's New in Version 3.0: - App iOS 9 compliant - Resolved a bug with localization in iOS 9 - App optimized for all kind of iPhone and iPad - Added sound execution, if semaphore is stopped before end time - Minor bugs resolved What's New in Version 3.1: - Corrected the link to the archery app ### 3.0 — 2016-05-13 - App iOS 9 compliant - Resolved a bug with localization in iOS 9 - App optimized for all kind of iPhone and iPad - Added sound execution, if semaphore is stopped before end time - Minor bugs resolved ### 2.0 — 2014-04-30 - App optimized for iPhone 5, the application now recognizes the iPhone you are using and shows you the best screens for your device. - App optimized for iOS 7 and above, the application now recognizes the operating system you are using and shows you the most suitable screens. ### 1.0 — 2013-04-05 No release notes. ## More apps by Massimiliano Borrelli - [my Moon - tune in your life with the moon and lunar cycles, recommendations and suggestions for each phase of the moon](https://appshunter.io/ios/app/my-moon-tune-in-your-life-with-the-moon-and-lunar-cycles-recommendations-and-suggestions-for-each-phase-of-the-moon/id469615575) - [Biorhythm Pro - measure the rhythm of your life](https://appshunter.io/ios/app/biorhythm-pro-measure-the-rhythm-of-your-life/id478005732) - [I Learn Guitar Pro - interactive guitar course for beginners](https://appshunter.io/ios/app/i-learn-guitar-pro-interactive-guitar-course-for-beginners/id603992482) - [Chakra Test - discover the state of your chakras, harmonize the energy of your unbalanced chakras](https://appshunter.io/ios/app/chakra-test-discover-the-state-of-your-chakras-harmonize-the-energy-of-your-unbalanced-chakras/id718218231) - [Songs On Guitar - learn to play your favorite songs](https://appshunter.io/ios/app/songs-on-guitar-learn-to-play-your-favorite-songs/id949951432) All apps by Massimiliano Borrelli: https://appshunter.io/developer/446113431 --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-06-10.*