# Underwater Stopwatch — Stopwatch for Water Lock Mode > Stopwatch for Water Lock Mode (iPhone/iPad app by Vlad Topala.) - Source: https://appshunter.io/ios/app/underwater-stopwatch/id6783263832 (this page in markdown: same URL + `.md`) - Developer: [Vlad Topala](https://appshunter.io/developer/6783263834) - Category: Utilities, Sports - Price: Free - Age rating: 4+ - Requires: iOS 18.0 · 4 MB - Languages: American English - Released: 2026-06-24 - Data updated: 2026-08-24 - User reviews in markdown: https://appshunter.io/ios/app/underwater-stopwatch/id6783263832/reviews.md ## What is Underwater Stopwatch? A lightweight Apple Watch stopwatch and timer built for wet hands. Everything is controlled by rotating the Digital Crown, so you never need the touchscreen. It keeps working when your fingers are wet, gloved, or underwater, and while your watch is in Water Lock. TWO MODES Stopwatch counts up from zero, with laps. Timer counts down from any duration you set, drawn as a draining hourglass, with three unmistakable buzzes at zero. Run past zero and the overtime is recorded too. CROWN CONTROLS Rotate up to start, pause, and save. Rotate down to add a lap, or to continue a paused session. No taps, no buttons, nothing to fumble for. HAPTIC TIME CUES Set a repeating buzz at any interval, plus an optional stronger one for milestones. A light tap every 30 seconds and a firmer one every 5 minutes, for example. Track elapsed time without ever looking at your wrist. STAYS ON SCREEN The app holds the display for your whole session, so a glance shows your timer instead of the watch face. ON YOUR IPHONE Every session syncs across: full history, lap splits with faster and slower comparisons, and your average and longest times. Set durations and cues from either device. BUILT FOR Swimming and pool laps. Surfing. Cold plunges and sauna rounds. Breath-hold and apnea training. Anything you time where looking at a screen is not practical. PRIVATE BY DEFAULT No workouts. No fitness tracking. No Health data. No account, no subscription, no ads, no analytics. Every session stays on your devices. ## Version history (last 5 releases) ### 1.2.1 — 2026-08-12 TIMER MODE Swipe to the new Timer screen to count down instead of up. Pick any duration, watch the hourglass drain, and get three unmistakable buzzes at zero. Keep going afterwards and the overtime is recorded too. ALSO IN THIS UPDATE - Rebuilt the duration picker so the Digital Crown adjusts it properly. - Modernised the watch app under the hood for current watchOS. ### 1.2.0 — 2026-08-08 TIMER MODE Swipe to the new Timer screen to count down instead of up. Pick any duration, watch the hourglass drain, and get three unmistakable buzzes at zero. Keep going afterwards and the overtime is recorded too. STAYS ON SCREEN The app now holds the display for your whole session, so a glance at your wrist shows your timer instead of the watch face. ALSO IN THIS UPDATE • Rebuilt the duration picker so the Digital Crown adjusts it properly. • Modernised the watch app under the hood for current watchOS. TIMER MODE Swipe to the new Timer screen to count down instead of up. Pick any duration, watch the hourglass drain, and get three unmistakable buzzes at zero. Keep going afterwards and the overtime is recorded too. STAYS ON SCREEN The app now holds the display for your whole session, so a glance at your wrist shows your timer instead of the watch face. ALSO IN THIS UPDATE • Rebuilt the duration picker so the Digital Crown adjusts it properly. • Modernised the watch app under the hood for current watchOS. ### 1.1.0 — 2026-06-25 Adds Haptic Time Cues. Set one or two recurring vibration intervals during a session (a light tap every few seconds, a stronger one at milestones, or both) so you can track elapsed time without looking at your watch. Configurable on Apple Watch or iPhone. ### 1.0.1 — 2026-06-25 Fixes a bug where the stopwatch could disappear into the background mid-session while Water Lock was on, leaving you unable to get back to it. The timer now stays put for the entire run. ### 1.0 — 2026-06-24 No release notes. ## More apps by Vlad Topala - [Creier](https://appshunter.io/ios/app/creier/id6788389347) All apps by Vlad Topala: https://appshunter.io/developer/6783263834 --- *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 2026-08-24.*