Cortex Onboard vs Saillogger App
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Cortex Onboard
This app allows you to configure and update your marine electronics from your mobile device. Monitor vessel data, receive alerts, and manage features like Anchor Watch from anywhere on board.
- Configure and update Cortex devices
- View AIS information and alerts
- Manage Anchor Watch
- Monitor vessel sensors
- Connect NMEA 2000 instruments
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Cortex Onboard is free with your Cortex. Use it to configure your Cortex Hub and download updates to your Cortex devices with new features and improvements. You can also use Cortex Onboard to receive and manage alerts, view AIS information and instrument data anywhere on board your boat. View out-of-the-box sensors or NMEA 2000 networked instruments. - Setup is easy and free. - Use Cortex Onboard to configure and update your Cortex devices easily. - View AIS information and receive alerts on board direct to your device. - Manage Anchor Watch from the palm of your hand anywhere on board. - 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. - The Cortex Hub supports up to 10 WiFi devices (includes Handsets).
Saillogger App
Automate marine logbooks and monitor your boat's NMEA 2000 data. Track engine performance, battery levels, and more with custom dashboards. Relive journeys with automatic timelapse videos.
- Automated marine logbooks
- Custom NMEA 2000 data monitoring
- Personalized data dashboards
- Live updates and alerts
- Detailed trip history and insights
- Automatic timelapse videos
- Privacy controls for data sharing
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Saillogger is the ultimate companion app for automated marine logbooks and custom NMEA 2000 data monitoring. Designed for boating enthusiasts, this app helps you track your adventures and monitor your boat’s critical systems directly from your mobile device. Important: Saillogger requires a Signal K server, such as the Victron GX series or other compatible hardware, connected to your boat’s network. Without a server onboard, the app’s features will not function. Saillogger offers powerful features for boaters. With custom NMEA 2000 monitoring, you can configure and track data points like engine performance, battery voltage, tank levels, wind speed, and more. The app allows you to create personalized dashboards for the data that matters most to you. It includes an automatic logbook that captures your boating trips, recording key metrics like speed, distance, and weather conditions. You can stay informed in real time with live updates and alerts for your boat’s critical systems, whether onboard or monitoring remotely. Saillogger also provides detailed trip history and insights, enabling you to analyze your boat's performance over time. Relive your journeys with automatic timelapse videos, and enjoy peace of mind knowing your data remains private unless you choose to share it via customizable public profiles. With Saillogger, you can take your boating experience to the next level. By integrating seamlessly with your NMEA 2000 network through a Signal K server, you’ll gain valuable insights into your boat’s systems, ensuring every trip is safe, efficient, and enjoyable.
Screenshots
Verdict
The clearest difference is review sentiment: Saillogger App at 100% against Cortex Onboard's 56%. Saillogger App also leads on rating (5.0 vs 3.8) and iOS requirement (13.0 vs 15.6). Cortex Onboard's advantage is ads (none vs shown) and monetization model (free vs ad-supported). On price, ratings volume, in-app purchases and device support 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.
Saillogger App holds the better App Store score, 5.0 against 3.8. Both are backed by a comparable volume of ratings — 12 and 9 respectively. Written reviews point the same way: 56% of Cortex Onboard's written reviews are positive against 100% of Saillogger App's.
| Parameter | Cortex Onboard | Saillogger App |
|---|---|---|
| Price | Free | Free |
| Rating | 3.8 (12 ratings) | 5.0 (9 ratings) — better |
| Positive reviews | 55.6% of reviews | 100.0% of reviews — better |
| Number of ratings | 12 — better | 9 |
| Update frequency | Every 2 months | — |
| Ads | No — better | Yes |
| In-app purchases | No | No |
| Monetization | Free — better | Ad-supported |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.6 | 13.0 — better |
| Further details — not scored | ||
| Size | 376 MB | 4 MB |
| Age rating | 4+ | 4+ |
| Developer | Garmin New Zealand Ltd | Saillogger LLC |
Customer experience
Cortex Onboard
Saillogger App
In-app purchases
Cortex Onboard
No in-app purchases
Saillogger App
No in-app purchases









