# Cortex Monitor

> Remote Vessel Monitoring

Canonical page: [https://chrome-stats.com/d/id1456678376](https://chrome-stats.com/d/id1456678376)

## Overview

- **ID:** `id1456678376`
- **Platform:** Apple
- **Type:** Apple app
- **Status:** Available
- **Publisher:** Garmin New Zealand Ltd
- **Category:** Utilities
- **Rating:** 1.80 / 5 (18 ratings)
- **Version:** 1.7.14
- **Last updated:** 2025-12-03
- **First published:** 2020-08-01
- **Size:** 32 MB
- **Data as of:** 2026-09-04
- **Store listing:** [Apple App Store](https://apps.apple.com/us/app/cortex-monitor/id1456678376)
- **Website:** [https://www.garmin.com/en-US/p/916577/pn/010-CORTX-00](https://www.garmin.com/en-US/p/916577/pn/010-CORTX-00)
- **Privacy policy:** [https://www.garmin.com/privacy/global/](https://www.garmin.com/privacy/global/)

## Description

Vesper Monitor works with your on board Vesper Marine Cortex M1 device to monitor both the built-in Cortex sensors and other sensors on your boat that you connect to your Cortex Hub. 

- Setup is easy and free
- Use the Cortex Hub’s built-in sensors for battery level, barometric pressure and boat position.
- Connect your Cortex Hub to NMEA 2000, or an external sensor, to add monitoring for wind, depth, bilge high water, temperature, shore power or security.
- Unlock your Cortex Hub to receive real-time sensor information, alerts and remotely control key circuits like air conditioning, lights or refrigeration.
- Once you’ve unlocked your Cortex Hub you can also track your vessel, set geo-fence alarms and use Vesper Marine’s Award Winning smartAIS AnchorWatch to know your boat is safe at anchor.

## Rankings

- #385,205 — Overall

## Review summary

User reviews show strong positives for easy installation, remote boat data access, voltage alerts, AIS features, and ongoing updates. However, recurring problems include sign-in friction and white-screen crashes, reliability declines after Garmin’s takeover, location/GPS data issues, and limited documentation or support. Overall sentiment is mixed: solid features and usefulness, but stability and accessibility concerns hinder daily use.

### Pros

- Easy install and intuitive interface across iPad and iPhone.
- Remote boat data access; works well when away from the vessel.
- Battery voltage alerts and voltage history.
- AIS visibility and the ability to hail a boat by name.
- Ongoing improvements with updates.

### Cons

- Frequent sign-in issues and forced re-authentication; lack of persistent login and no Face ID.
- White screen / blank screen on boot or login; app locks up after updates.
- Perceived degradation in reliability and support since Garmin acquisition.
- Location data permissions and GPS/location errors.
- Limited in-app documentation and inconsistent product support.

## Similar extensions and apps

- [Cortex Onboard](https://chrome-stats.com/d/id1483406085) — 3.80 / 5
- [Vanemar](https://chrome-stats.com/d/id1532895745) — 5.00 / 5
- [Roam Marine Monitor](https://chrome-stats.com/d/id6449435326) — 5.00 / 5
- [Sensar Marine](https://chrome-stats.com/d/id1445189707) — 5.00 / 5
- [Vesscomm](https://chrome-stats.com/d/id1666953243)
- [VoltSense](https://chrome-stats.com/d/id6621183757)
- [Boat Monitor 32](https://chrome-stats.com/d/id6742724665)
- [LXNAV VesselWatch](https://chrome-stats.com/d/id6502387676)
- [VirCru: Boat Monitoring](https://chrome-stats.com/d/id1582617113)
- [Boat Vitals BLE](https://chrome-stats.com/d/id1386722502)
- [VMH Flex Marine](https://chrome-stats.com/d/id6747126000)
- [SailorGuard](https://chrome-stats.com/d/id6768244109)

---

Source: [Chrome-Stats](https://chrome-stats.com/d/id1456678376)
