Rivanaut vs SeaBase

Rivanaut turns your iPhone, iPad and Apple Watch into a modern chartplotter for Europe's inland waterways. Plan a trip across rivers, canals and lakes, follow live navigation on the water, and find the marina, lock or fuel dock you need — all in one app. PLAN SMARTER ROUTES • Automatic waterway routing that follows real rivers, canals and the buoyed fairway — not straight lines across land. • Vessel-aware: enter your boat's draft, air draft, beam and length and Rivanaut avoids bridges, locks and shallows it can't pass (where data exists). • Multi-stop trips and a multi-day cruise planner with suggested overnight harbours. NAVIGATE WITH CONFIDENCE • Live cockpit: speed, course, distance-to-go, ETA and cross-track error. • Day / dusk / night chart palettes and north-up / head-up / course-up orientation. • Voice and haptic alerts for waypoints, off-route and over-speed. • Live Activities on the Lock Screen and Dynamic Island, plus a full Apple Watch app. KNOW THE WATER • Live water levels from official gauges in Germany (PEGELONLINE), the Netherlands (Rijkswaterstaat) and France (Vigicrues). • Weather and wind forecasts along your route. • Speed limits and depth soundings overlays where mapped. POINTS OF INTEREST • Marinas, harbours, locks, slipways, moorings, fuel and waterside restaurants. • Save favourites and add them straight to your route. ANCHOR WATCH & LOGBOOK • Drop anchor, set a swing radius and get a repeating alarm if you drag — even with the screen locked. • Automatic trip recording with distance, time and speed, GPX import/export and a logbook. • Track running costs and see boating statistics. OFFLINE READY • Download whole regions — maps, POIs and routing — to navigate without a signal. SAFETY FIRST Rivanaut is a planning and information tool, not a certified navigation system. Always check water levels, closures, locks, bridge clearances and local regulations from official sources before setting out. Rivanaut Pro (auto-renewing subscription) • Monthly or yearly plans; the price is shown in the app before you buy. • Payment is charged to your Apple Account at confirmation of purchase. • Your subscription renews automatically unless cancelled at least 24 hours before the end of the current period. Manage or cancel anytime in your Apple Account settings. Terms of Use: https://rivanaut.donner.io/terms Privacy Policy: https://rivanaut.donner.io/privacy

Less apps. More sailing. Seabase is the offline-first sailing companion. Anchor alarm, offline nautical charts, GPS navigation, tides, and a logbook — every tool you need on the water, all working without a signal. No accounts. No ads. PAY ONCE Seabase is a paid app — a single one-time purchase, and it's yours forever. No subscription, nothing auto-renews, no in-app purchases, no ads. Every offline chart region offered is included with unlimited downloads. You pay once and get the whole app. ANCHOR ALARM Drop a virtual anchor and Seabase watches your position with phase-based drift detection — scope warnings, drift alerts, and critical alarms with sound and vibration. A sliding-window filter rides out GPS noise instead of waking you for it. Arm it after the fact with "Already Anchored" mode, pause and resume on the fly, and control the whole watch from your wrist. Replay any past anchor session on a scrubbable radar track. Built to wake you before your boat does. OFFLINE CHARTS Download nautical chart regions to your phone with OpenSeaMap seamarks built in. A global base layer keeps you covered when you sail past your downloaded zone. NOAA depth overlays for US waters when online. GPS NAVIGATION Long-press the chart to plan a route — built-in land detection flags legs that cross land. Live navigation gives you bearing, distance, ETA, cross-track error, and remaining distance with heading-up auto-rotation. Save routes and replay them. A dedicated GPS Navigator adds a radar HUD plus point-to-point go-to. APPLE WATCH Native watchOS companion — speed, heading, anchor radar, and a navigation arrow on your wrist. Arm, disarm, pause, and resume the anchor alarm from the watch. Start and stop trip recording remotely. Mirrors your iPhone's dark/light theme. TIDES 3,500+ tide stations worldwide, completely offline. NOAA-accurate harmonic prediction from a bundled database — no API call, no signal needed. A clear "now" hero card with a trend chart and high/low times. NEARBY PLACES An offline harbor and anchorage finder covering 25 cruising regions worldwide — marinas, fuel docks, pump-outs, ramps, and more — with a searchable list and an offline map view. Hand off any place straight to the GPS Navigator. LOGBOOK Auto-tracking trip recorder with idle detection, photos, notes, and a speed graph. Shareable trip cards with a route preview. CSV export. Sail Recap turns any recorded trip into a shareable highlight video. REFERENCE Knots with animations · COLREGS rules · NATO phonetic alphabet · Safety-equipment guide (US, EU, AU, UK) · VHF MAYDAY / PAN PAN / SÉCURITÉ guide · IALA buoyage. EMERGENCY Always-dark emergency screen so it works at night. Heave-to guide, quick-reference distress procedures, MOB tracker, and rescue contacts. PRIVACY Your trips, photos, and routes never leave your phone, and your GPS position is never sent anywhere. The only network calls are to map/chart tile hosts for first-time region downloads. No accounts, no analytics, no tracking. LICENSE Recreational use only. Not a substitute for professional navigation equipment, official charts, or sailing certifications. You are responsible for your safety on the water. Built by sailors. Yeoman Ventures LLC, California. www.seabase.app · gosailing@seabase.app