One app. Built for the coast.
Live SAR tracking · Crew location sharing · Tasking & reporting · Tides · Coastal weather · W3W
Every feature designed around what coastal SAR crews, RNLI volunteers, and Coastguard teams actually need on a shout.
Real-time positions of HMCG helicopters, RNLI lifeboats, air ambulance and police aircraft on the map. Tap any asset to see registration, operator, base, altitude, speed, heading and vertical rate. Powered by OpenSky and AIS — updated every minute.
Create a named crew group and share a 6-digit PIN. Every member sees the rest of the team live on the map with last-seen timestamps. Toggle map visibility on and off. Built for coordinating SAR teams in the field without switching apps or exchanging phone numbers.
Push notification the moment an RNLI vessel or SAR helicopter launches near you. Delivered to your iPhone and Apple Watch. Configurable alert radius so you only get notified about activity that matters to your station.
Live Met Office observations plus 24-hour forecast. Wind speed, gusts, direction, cloud base, visibility, temperature and pressure. Every readout includes an operational status — CONDITIONS GOOD, MARGINAL, or BELOW MINIMA — so you know immediately whether conditions are taskable.
Admiralty tidal predictions for any UK coastal station. Full tidal curve chart — 24, 48 or 72 hours ahead. Current height, next high and low water, tidal range, spring tide warnings, neap and spring indicators. Nearest station shown automatically.
Drop a pin and get the W3W address instantly. Search by ///words to jump to any location. The compass view gives bearing and distance to any W3W pin — navigate directly to a casualty location without leaving the app or losing your place on the map.
One tap starts a tasking. The crew commander selects team members and sends instant invitations. Every accepted member is tracked automatically — positions recorded every 100m or 5 minutes. When the tasking ends, ClearBase generates a full PDF operational report: crew list, location track, timeline of events, weather and tidal state at start time. Share via email, WhatsApp, or save to Files.
Toggle over 10 data layers on a single map: SAR bases, RNLI stations, HMCG locations, Coastal Rescue Team positions, live aircraft, active lifeboats, HLS sites with exact coordinates, community-submitted HLS verified by ClearBase admin, and tidal surge monitoring stations. Mark any HLS as a favourite — starred sites persist until manually removed.
One button puts ClearBase into full operational mode. The crew commander starts a tasking, selects team members, and sends instant push notifications. Every accepted crew member is automatically tracked. Evidence pins, chat messages, and aircraft detected are all logged to the session. When the tasking ends, a full PDF report is generated — crew list, patrol tracks on a map, timeline of events, and weather and tidal conditions at start time. No other coastal app has this.
iOS launching Summer 2026 · Android to follow · 14-day free trial · Cancel anytime