# Quick Tide Sailing: Auto GRIB > Polar/routing/repeater/alarms Canonical page: [https://chrome-stats.com/d/id6787247113](https://chrome-stats.com/d/id6787247113) ## Overview - **ID:** `id6787247113` - **Platform:** Apple - **Type:** Apple app - **Status:** Available - **Publisher:** GanSoft SARL - **Category:** Navigation - **Version:** 1.2.32 - **Last updated:** 2026-09-08 - **First published:** 2026-07-11 - **Size:** 33 MB - **Data as of:** 2026-09-25 - **Store listing:** [Apple App Store](https://apps.apple.com/us/app/quick-tide-sailing-auto-grib/id6787247113) - **Website:** [https://gansoft.ch/polar/](https://gansoft.ch/polar/) - **Privacy policy:** [https://gansoft.ch/polar-privacy-policy.html](https://gansoft.ch/polar-privacy-policy.html) ## Description Routing that knows the tide: best departure time, fine-scale currents, automatic wind (AROME, ICON, ECMWF). Sail & motor. 3-day free trial. Quick Tide Sailing plans and runs your passages, under sail or under power: routing, multi-model GRIB, current and tide, ORC polars, marine charts. Free to start. THE ROUTING, AND WHY IT IS FASTER Draw your route, pick a departure time, run the calculation. The isochrone algorithm looks for the fastest track from your polar, the wind, the swell, the current, the day/night cycle and your motoring rules, while clearing the coast. The calculation advances by successive fronts, discarding the positions with no future. A classic router keeps, per sector, only the one furthest from the start. Upwind that criterion turns against you: the tack that gains towards the mark is not the one that goes furthest away — it gets discarded, and the route commits to a long losing board. Here each front keeps both, the most advanced and the closest to the finish. Measured on Groix-Ouessant, same GRIB and same polar, 100 % sailing: 16 h 57 for 100 miles, against 20 h 40 for 152 miles on a well-established consumer router. Three hours forty less, 18 %. The gap comes from the algorithm, not from the engine. AND FOR MOTORBOATS Raise the "Motor below" setting above any speed under sail and enter your motoring speed: the routing becomes a power calculation, current, tide, swell and coastline included. Against a 5-knot tidal race, an 8-knot motor cruiser stakes its day on the time of passage. THE CURRENT IS PART OF THE CALCULATION Current is not a decorative overlay: it enters the routing. Useful wind is taken in the water frame, and speed over ground follows. • From the Baltic to the Mediterranean, 412 current areas of at least 1 knot, surveyed over a full spring cycle • Fine mesh where current makes the day: our own 100 m model on the English coast, Ifremer 250 m in Brittany and the Channel, BSH on the Elbe and the Belts, Copernicus Marine elsewhere • Tide computed on board: heights, high and low waters, at any date, with no network • Best departure time: a sweep compares the departures in your window and keeps the one that passes the races at the right moment WEATHER AND MODELS • ECMWF and GFS offshore, up to 10 and 16 days • AROME 1.3 km and ARPEGE 0.1° (Meteo-France), ICON-EU 7 km and ICON-D2 2.2 km (DWD) • The finest model for the area is offered; the GRIB follows the extent of your route THE SOLENT, MODELLED FOR ITSELF General-purpose current sources work on a 1.5 km grid — three cells across a channel three miles wide. We built our own: a hydrodynamic model of the Solent, the Isle of Wight, Hurst and the Needles on a 100 m mesh. Developed with AI assistance, from open data, checked against published tide gauge records. Harmonic tide: currents for any date, months ahead. YOUR POLAR, MEASURED UNDER WAY Start from the monohull and multihull library, from the ORC database — thousands of certified boats — or from your own CSV and .pol files. Then build your own at sea. The capture workshop (experimental) fills an angle / wind-speed grid cell by cell as you sail: it waits for a settled regime, discards the minutes after a manoeuvre, flags doubtful cells. Interpolate the gaps, correct by hand, merge outings, export to .pol or .csv. That is your boat, not the sister-ship's. The display then puts your speed against the target: 96 % upwind, you are still looking; 103 %, you are holding the right trim. ON BOARD • Instrument display (NMEA 0183, Signal K) • Alarms: anchor drag, shallow water, strong wind, cross-track error, battery • AIS, tracks, passage table, GPX export • OpenStreetMap and OpenSeaMap charts: marks, soundings, seagrass • Offline: cached charts, GRIB kept on board, tide computed without network • Comparator: overlay several routings and replay them GFS wind routing is free, without limit. Auto-renewing subscription: it renews unless cancelled at least 24 hours before the end of the period, and can be managed in your App Store account settings. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ ## Rankings - #1,035,085 — Overall ## Similar extensions and apps - [moodSailor](https://chrome-stats.com/d/id6762207362) - [Riptide GPS](https://chrome-stats.com/d/id6787271711) - [NavimetriX](https://chrome-stats.com/d/id6751144072) — 5.00 / 5 - [Navig8 Sailing](https://chrome-stats.com/d/id6761892923) - [Sail Routing](https://chrome-stats.com/d/id6756657427) - [Just Tides](https://chrome-stats.com/d/id6743323163) - [Squid - Marine Navigation](https://chrome-stats.com/d/id999783032) — 4.80 / 5 - [Tidal Streams](https://chrome-stats.com/d/id6754638517) — 5.00 / 5 - [SailMeteo](https://chrome-stats.com/d/id6782622330) - [Tides Planner](https://chrome-stats.com/d/id317900837) — 3.80 / 5 - [TrueWind: Wind & Tide Map](https://chrome-stats.com/d/id6502623580) — 4.60 / 5 - [Real Tides & Currents Graph HD](https://chrome-stats.com/d/id489534088) — 4.70 / 5 --- Source: [Chrome-Stats](https://chrome-stats.com/d/id6787247113)