Apnea Competition Countdown by Squarecrowd Apps SIA
Automated countdown system



54+ similar apps compared and reviewed
Whether you want more options like Diving Cool or a completely different take on the same concept, our curated list of 54+ similar apps has you covered. Updated for 2026 with the latest ratings and comparisons.

















Easily manage your SCUBAPRO Z1 dive computer logs and settings. Download dive data via Bluetooth, add details like location and photos, and configure your dive computer's preferences.


Plan complex technical dives with support for various breathing apparatus and gas mixes. Features advanced decompression algorithms, gas consumption tracking, and contingency profile planning. Easily store, export, and reuse dive plans.


Transform your Apple Watch into a dedicated freediving and spearfishing computer. Automatically track dive depth and duration using the device's barometer, displaying real-time data and historical dive logs. Save money on specialized equipment with this wrist-mounted dive companion.






Log your underwater adventures, enrich them with media, and connect with a global diving community. Automatically sync dive data from compatible computers and discover popular dive destinations worldwide. Build your diver profile and get your logs certified by instructors.