# SEAiq

> Navigation

Canonical page: [https://chrome-stats.com/d/id529514298](https://chrome-stats.com/d/id529514298)

## Overview

- **ID:** `id529514298`
- **Platform:** Apple
- **Type:** Apple app
- **Status:** Available
- **Publisher:** Sakhalin
- **Category:** Navigation
- **Rating:** 4.70 / 5 (193 ratings)
- **Version:** 5.7.5
- **Last updated:** 2026-09-21
- **First published:** 2012-06-01
- **Size:** 52 MB
- **Data as of:** 2026-09-22
- **Store listing:** [Apple App Store](https://apps.apple.com/us/app/seaiq/id529514298)
- **Website:** [http://seaiq.com](http://seaiq.com/)
- **Privacy policy:** [http://seaiq.com/privacy.html](http://seaiq.com/privacy.html)

## Description

**SEAiq** is a full-featured marine navigation app for boaters, sailors, and maritime professionals. Load charts in S-57, S-63, iENC, BSB, and KAP formats, or automatically download NOAA charts for the United States.

Plan and monitor journeys with waypoints, routes, tracks, night color modes, anchor alarms, and chart measuring tools including EBL and VRM. SEAiq can also download and display weather information such as wind and isobars, while Wi-Fi connectivity supports NMEA and AIS data.

Charts can be viewed without making a purchase. Premium navigation features are available during a 7-day evaluation period, after which an annual subscription is required. Existing one-time purchases retain the features they previously unlocked. Background GPS use may significantly reduce battery life.

## Rankings

- #105,366 — Overall

## Review summary

SEAiq is widely praised as a feature-rich, reliable iPad/iPhone navigation app with strong AIS integration, NMEA data support, and robust offline chart options (NOAA and custom charts). Users value its advanced charting tools (EBLs, VRMs, running fixes), tides, alarms, and the ability to store and share charts and tracks across devices. However, several recurring issues dampen enthusiasm: the removal of CM93 support in newer versions; slow, unreliable chart downloads; a pricing/licensing model that gates many features behind upgrades; and setup complexity for external chart sources. Overall, it's a top tool for serious navigators when you can manage the drawbacks.

### Pros

- Feature-rich navigation toolkit with advanced charting tools (EBLs/VRMs, running fixes)
- Excellent AIS integration and visualization (course vectors, rate of turn; attach VRM/EBL to AIS targets)
- Strong offline access to NOAA charts and other offline data
- Flexible chart sourcing and support for custom charts (Kap files, ChartWorld/NZ ENC)
- Reliable, stable performance and cross-device data storage/sharing

### Cons

- CM93/CM57 vector chart support removed in newer versions
- Slow, unreliable chart downloads and need to keep the app awake during updates
- Pricing model gates many features behind upgrades and chart costs
- Complex setup for external chart sources (certificates and licenses) required by ChartWorld/NZ ENC
- Performance/speed issues and occasional UI latency when rendering larger areas

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Source: [Chrome-Stats](https://chrome-stats.com/d/id529514298)