TrueWind vs TideSync
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
TrueWind
This app provides detailed marine weather forecasts, including wind, tide, current, and wave data. It's designed for sailors and watersport enthusiasts to aid in planning, decision-making, and performance on the water.
- Wind direction, speed, and gusts
- Wind shifts over time
- Tide station data
- Current station data
- Wave details
- Regatta planning tools
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Know the water before the gun. TrueWind puts wind, current, tide, waves and NWS marine alerts for your race window on one screen, built for sailors and regatta racers instead of beach-goers. RACE-DAY MODE • Start-line bias: mark the pin and the committee boat and TrueWind tells you which end is favored, and by how many degrees • Wind confidence: Stable, Mixed or Shifty, read from how much the forecast swings across your race • Wind now, current at the gun and the next tide turn, in big type you can read on deck RACE REMINDERS • Add your weekly club race or a one-off regatta once • A full briefing for your exact start and finish: hourly wind and gusts, a flood/ebb current curve, tide highs and lows, sea state and spring/neap strength • Countdown notifications with a picture of the conditions, plus an alert as soon as an NWS warning covers your race • Your races are saved to your account, so a new phone gets them back LOCAL WIND • Send in your club's anemometer or a nearby weather station. Once it's approved, any sailor can add it • Apple Weather wind for any harbor, with a forecast across your race hours • See trend, gusts and how the wind has shifted over the last 6 hours TIDE, CURRENT & WAVE MAP • NOAA tide stations with a live height estimate and a 30-hour curve • Current stations with arrows that point the way the water is flowing right now • NDBC buoys with wave height, period, wavelength and swell direction WEATHER & ALERTS • 5-day wind forecast with gusts, direction and an hour-by-hour view • Race-context notes: building, easing, veering or backing • Gale, small craft, storm and other NWS marine warnings for where you sail HOME SCREEN WIDGETS • A countdown to your next race with wind, current and tide • A current-at-the-start widget, and an extra-large layout that lists the races after it Forecasts, tides and currents come from NOAA and the National Weather Service, so coverage is US waters. Sign in with Google to get marine alerts, local wind and account backup. From Tuesday-night club racing to weekend regattas and everyday boating, TrueWind shows the marine conditions that matter without the clutter of a general weather app.
TideSync
This utility tool provides precise marine data for ocean enthusiasts, including tides, weather, and solunar information. It offers offline global data and a native, interactive user experience.
- Global offline tide data
- Pro marine weather charts
- Interactive forecast charts
- Solunar timings and moon phases
- Native iOS experience
- Haptic feedback
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Sync with Nature TideSync is a pure utility tool crafted for ocean enthusiasts. Whether you are surfing, beachcombing, or sailing, we are dedicated to providing you with the most precise and fluid marine data experience. Stripping away the complexity, we utilize native iOS technologies to create a seamless interactive experience. Glide your finger across the screen to feel the rhythm of the tides. Key Features - Global Offline Data - No Internet Needed: Built-in harmonic constant database for 7,000+ major ports and stations worldwide. Accurate tide data is available anytime, anywhere, even offshore or on remote islands. Privacy First: All calculations are performed locally. Your location is used solely to find the nearest station and is never uploaded to the cloud. - Pro Marine Weather - Multi-Dimensional Charts: More than just tide heights. We provide critical data including Air Temperature, Wind Speed, Gusts, Swell, Ocean Currents, Water Temperature, UV Index, Humidity, Precipitation, Visibility, and Barometric Pressure. Dynamic Interaction: Master sea conditions with intuitive Interactive Charts. Drag the cursor to view detailed forecasts for any future moment. - Solunar Info - Precise Timings: Accurate Sunrise/Sunset and Moonrise/Moonset times. Moon Phase: Visual moon phase tracking helps you understand spring and neap tide cycles, aiding in planning your beach trips and fishing activities. - Native Experience - Ultra-Smooth: Built with native Swift for lightning-fast launch times and a lightweight footprint. Haptic Feedback: Experience physical-like vibrations when interacting with charts, thanks to our custom Haptic Feedback integration. Perfect For Surfing: Find the perfect swell window. Beachcombing: Know exactly when low tide hits to explore the intertidal zone. Sailing: Offline chart-grade data for safe navigation. Photography: Catch the golden hour and blue hour over the ocean. Download TideSync today and sync with the pulse of the ocean.
Screenshots
Verdict
The clearest difference is rating: TideSync at 5.0 against TrueWind's 4.6. TrueWind's advantage is ratings volume (10 vs 1) and iOS requirement (17.0 vs 26.2). On price, review sentiment, update cadence and ads there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
TideSync holds the better App Store score, 5.0 against 4.6. That said, the two scores are not equally well evidenced: TrueWind has 10 ratings behind it against 1, so its average is the more settled of the two. Written reviews split almost evenly too, at 100% and 100% positive.
Both ship on a similar rhythm, roughly every 3 weeks. The most recent releases landed on November 8, 2026 and October 31, 2026 respectively.
| Parameter | TrueWind | TideSync |
|---|---|---|
| Price | Free | Free |
| Rating | 4.6 (10 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| Number of ratings | 10 — better | 1 |
| Update frequency | Every 3 weeks | Every 3 weeks |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 17.0 — better | 26.2 |
| Further details — not scored | ||
| Size | 21 MB | 17 MB |
| Age rating | 4+ | 4+ |
| Developer | Noujan Fakhri | Xinyu Hong |
Customer experience
TrueWind
TideSync
In-app purchases
TrueWind
No in-app purchases
TideSync
No in-app purchases









