# SeaVectors Marine Navigation — Boat GPS, Nautical Charts, AIS

> Professional marine navigation app with ENC charts, real-time data, and route planning. (iPhone/iPad app by SMALL TECHNOLOGIES INC..)

- Source: https://appshunter.io/ios/app/seavectors-marine-navigation/id6747519514 (this page in markdown: same URL + `.md`)
- Developer: [SMALL TECHNOLOGIES INC.](https://appshunter.io/developer/474901683)
- Category: Navigation, Utilities
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 18.0 · 71 MB
- Languages: American English, Chinese (Simplified, China)
- Released: 2025-06-25
- Data updated: 2026-08-24
- Monetization: free with in-app purchases
- User reviews in markdown: https://appshunter.io/ios/app/seavectors-marine-navigation/id6747519514/reviews.md

## What is SeaVectors Marine Navigation?

Official ENC charts. Real conditions. Your boat's own instruments. One app, in your hand.

SeaVectors renders the same class of official electronic navigational charts used on commercial ship bridges — full NOAA coverage for the United States, plus high-definition vector charts for the Canada West Coast — then adds live weather, official tide and current predictions, AIS collision awareness, and a direct link to your boat's NMEA network.

Everything you see is built on official ENC data. This isn't a street map with water on it.

Try everything free for 30 days.

PROFESSIONAL ENC CHARTS
Charts are built from the S-57 data standard and drawn with S-52 symbology, the same presentation used on ECDIS. Colours, symbols, day/night palettes and a boat-specific safety contour all follow the professional standard — and you can tap any object to read its official attributes. Choose nautical, night, satellite or relief styles, and switch individual layers on or off: depth areas, contours, soundings, hazards, lights, cables, restricted areas and labels.

CONNECT TO YOUR BOAT — NMEA 0183 AND 2000
Join your boat's network over Wi-Fi and receive live instrument data: speed, depth, wind, heading, position, RPM, fuel and more. Multiple engines, tanks, batteries and other device instances are handled properly. Build your own dashboard from around two dozen widgets — drag, resize, and see the source behind every reading.

AIS COLLISION AWARENESS
See nearby vessels on the chart with closest point of approach (CPA) and time to CPA (TCPA). Configurable safety thresholds, colour-coded risk levels, flashing warnings and escalating alarms help you spot a developing situation early.

TIDES AND CURRENTS FROM CHS AND NOAA
Official Canadian Hydrographic Service and NOAA stations appear directly on the chart. Read current speed and direction, flood and ebb, slack water, turning times, tide height, rising or falling trend, and the next highs and lows — exactly what matters around harbours, channels, narrows and tidal passages.

MARINE WEATHER, ON THE CHART
Animated overlays for precipitation, temperature, wind, gusts, waves, tides and currents, with a full-screen forecast that lines up every marine category on one timeline. Pick the model — automatic, NOAA NWS, or Environment Canada where available.

14-DAY OFFLINE FORECASTS
Download 14 days of rain, wind, wave, tide and current forecasts for the area you're heading to before you leave. Losing signal offshore no longer costs you the conditions.

ROUTES, TRACKS, MARKERS AND ALERTS
Plan multi-leg routes with distance, ETA and fuel estimates, then preview them with built-in simulation. Measure with a multi-leg ruler and convert it to a route in one tap. Record and replay your tracks, and save markers with labels, notes, photos or video. Get alerted for charted Restricted Areas and supported DFO fishing closures — tap through to read the actual rule.

WORKS OFFLINE
Charts cache automatically as you browse, so coverage you've already looked at stays available with no connection. Storage Management shows exactly what's cached and lets you clear it.

ENGLISH AND SIMPLIFIED CHINESE
Weather, tides, currents, station information and offline forecast tools are available in both languages.

SeaVectors aids navigation. It does not replace official paper charts, a proper lookout, or prudent seamanship. Always cross-check.

SUBSCRIPTION
SeaVectors includes a 30-day free trial. A subscription is required afterward for continued full access. Payment is charged to your Apple ID and renews automatically unless cancelled at least 24 hours before the end of the current period. Manage or cancel your subscription in your App Store account settings.

Apple Terms of Use (EULA)
https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Terms of Service
https://seavectorsapp.com/terms/

Privacy Policy
https://seavectorsapp.com/privacy/

## Key features

- ECDIS-grade ENC charts
- Real-time marine conditions
- Customizable instrument panel
- Restricted area and fishing closure alerts
- Advanced weather overlays
- Official tide data
- Route planning and simulation
- Offline chart caching

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| Monthly | $5.99 | per month |
| Yearly | $49.99 | per year |


## Recent user reviews (6 of 6)

All indexed reviews: https://appshunter.io/ios/app/seavectors-marine-navigation/id6747519514/reviews.md

### 5/5 — BC coastal charts are nice

*2026-08-13*

I am out fishing a lot in Victoria BC. It works so well smooth and fast map. I really like the live CHS stations data. That is crucial for fishing you can see the slack of the water. Good job.

### 5/5 — Wow pretty awesome

*2026-07-17*

Just learning this app

### 5/5 — Very useful

*2026-04-25*

Very useful!

### 5/5 — Very smooth

*2025-06-28*

All the features run smoothly and is very clean

### 5/5 — Works well on sea. Appreciate the Canadian charts

*2025-06-28*

This app is very fast and it is very helpful for everything to do with the sea, well done.

### 5/5 — It works great on the sea.

*2025-06-26, version 1.11*

Real ENC map. I took it out fishing yesterday. The charts are very clear.

## Frequently asked questions about SeaVectors Marine Navigation

### What is SeaVectors?

SeaVectors is a professional marine navigation application that provides official ENC charts, real-time marine conditions, and advanced instrument displays to support safe navigation on the water.

### What types of charts does SeaVectors offer?

SeaVectors offers high-resolution NOAA ENC vector charts with full US coverage, and detailed vector charts for the Canada West Coast, rendered to the official S-57 standard with S-52 symbology.

### Can I use SeaVectors offline?

Yes, charts are automatically cached as you browse, ensuring coverage is available even when you do not have an internet connection.

### What kind of alerts does SeaVectors provide?

SeaVectors provides alerts for restricted areas (RESARE) and DFO fishing closures on the Canada West Coast, including Rockfish Conservation Areas and marine refuges.

### Does SeaVectors have ads?

No, SeaVectors is ad-free, allowing for an uninterrupted navigation experience.

### What are the subscription options for SeaVectors?

SeaVectors offers a monthly subscription for $5.99 and a yearly subscription for $49.99, providing access to its full suite of features.

### What devices is SeaVectors compatible with?

SeaVectors is available for iPhone and iPad devices.

### How often is SeaVectors updated?

The latest version of SeaVectors is 2.0, and it was last updated on June 30, 2026, indicating regular updates to enhance functionality and data.

## Version history (last 5 releases)

### 2.5 — 2026-08-10

Plan the whole trip, not just this moment.

ROUTE WEATHER
Set your departure time and boat speed, and every point on your route shows the forecast for the time you'll actually be there — not the forecast for now. Scroll the timeline or tap a route bubble and the map, the time and the highlighted position all move together. A short guide walks you through it the first time.

OFFICIAL STATIONS FOR THE WHOLE PASSAGE
Tide and current predictions along a route now come from the nearest CHS or NOAA station to each point, instead of one station for the entire trip — so a run through a narrows agrees with that narrows' own station. Every reading names its station and chart datum, and the timeline marks where one station hands over to the next.

EVERY CATEGORY ON ONE TIMELINE
The All tab lines up temperature, rain, wind, gusts, waves, tide and current against the same hours, so you can read the whole picture in one pass. Tap the time chip to jump straight back to now.

WIND AND WAVES ON THE CHART
Redrawn wind particles and a new wave overlay, so you can see the pattern across the water rather than one value at a time.

KNOW THE MOMENT YOU CROSS THE LINE
In sailing mode and route simulation, SeaVectors now sounds an alert as your position enters a DFO closure or restricted area, and keeps reminding you while you're inside. The FISHING tile flashes red and moves up the panel so you can see which rule you've met. Turn the sound off any time in the alert details.

Plus a weather panel that runs edge to edge, a steadier full-screen layout, and fixes throughout.

### 2.4.5 — 2026-07-22

This release delivers major improvements for safer, more reliable voyage planning:
- Authoritative CHS and NOAA tide and current station data is now integrated directly into the chart. Review current speed and direction, tide height, slack-water periods, turning times, and upcoming events—especially valuable around harbours, channels, narrows, and tidal passages.
- New 14-day offline marine forecasts let you download rain, wind, waves, tides, and currents for the visible map area before departure. Forecasts remain available when cellular or satellite connectivity is limited or unavailable offshore.
- New marine search for locations, marinas, anchorages, fishing spots, routes, markers, and tide and current stations—with saved search history and recently viewed results.
- New multi-leg distance measurement with leg distances, course information, route details, and one-tap conversion to a saved route.
- Simplified map controls for location, follow, and course-up 3D modes.
- Improved current visualization, station markers, forecast loading, map performance, and overall reliability.

### 2.4.1 — 2026-07-21

This release delivers two major improvements for safer and more reliable voyage planning.
• Authoritative CHS and NOAA tide and current station data is now integrated directly into the chart. Review current speed and direction, tide height, slack-water periods, turning times, and upcoming events—especially valuable around harbours, channels, narrows, and tidal passages.
• New 14-day offline marine forecasts let you download rain, wind, waves, tides, and currents for the visible map area before departure. Forecasts remain available when cellular or satellite connectivity is limited or unavailable offshore.

Also included:
• Fixed an issue where tide and current station markers could disappear or lose their data while panning and zooming the map.
• Improved current visualization by blending modeled currents with nearby station data for smoother, more accurate flow patterns.
• Improved weather model selection reliability in the forecast panel.

### 2.4 — 2026-07-20

This release delivers two major improvements for safer and more reliable voyage planning.
• Authoritative CHS and NOAA tide and current station data is now integrated directly into the chart. Review current speed and direction, tide height, slack-water periods, turning times, and upcoming events—especially valuable around harbours, channels, narrows, and tidal passages.
• New 14-day offline marine forecasts let you download rain, wind, waves, tides, and currents for the visible map area before departure. Forecasts remain available when cellular or satellite connectivity is limited or unavailable offshore.
Also included:
• Refined current overlays combining Open-Meteo modeled currents with localized adjustments from nearby official stations.
• A new full-screen view aligning all marine forecasts on a shared timeline.
• Improved station synchronization, caching, download reliability, map responsiveness, and marker clarity.
• Expanded Simplified Chinese support.

### 2.3 — 2026-07-13

This release connects the app to your boat's electronics and brings your instruments on-screen.

- Connect to your boat's instruments
   Stream live data over WiFi from NMEA 0183 and NMEA 2000 gateways — speed, depth, wind, heading, position, temperature, tanks, battery and more, right on the chart.

- New instrument panel & dashboard
  Build a custom instrument panel, or open a full-screen categorized dashboard. Each widget shows its data source and latest reading, with level traces for tanks and batteries.

- AIS collision awareness
  See nearby vessels as ranked targets with CPA/TCPA, on-map labels, and a color-coded risk legend. Get flashing alerts and an escalating alarm when a target crosses your safety thresholds.

Charts & navigation improvements
- Cleaner sector-light rings and beams when zooming and following
- Mouse-scroll zoom now centers on the map, not the cursor
- New route and simulation banners, with the compass tidied into the top-right
- Various stability and performance fixes

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*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.*