# Cortex Onboard vs SailTimer API™

The clearest difference is review sentiment: Cortex Onboard at 56% against SailTimer API™'s 0%. Cortex Onboard also leads on in-app purchases (none vs 6) and ratings volume (12 vs 1). SailTimer API™'s advantage is rating (5.0 vs 3.8) and update cadence (every 4 weeks vs every 2 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. SailTimer API™ sells 6 in-app purchases, starting at $2.99 per month. Cortex Onboard asks for nothing beyond the download.

SailTimer API™ holds the better App Store score, 5.0 against 3.8. That said, the two scores are not equally well evidenced: Cortex Onboard has 12 ratings behind it against 1, so its average is the more settled of the two. Written reviews complicate that: 56% of Cortex Onboard's written reviews are positive against 0% of SailTimer API™'s, so the app with the better star average is not the one people write more warmly about.

Cortex Onboard ships an update every 2 months, SailTimer API™ every 4 weeks. The most recent releases landed on June 7, 2026 and August 19, 2026 respectively.

## The numbers

| Metric | Cortex Onboard | SailTimer API™ |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.8 (12 ratings)](https://appshunter.io/ios/app/cortex-onboard/id1483406085/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/sailtimer-api/id1562869275/reviews)** |
| Number of ratings | **12** | 1 |
| Positive reviews | **55.6% of reviews** | 0.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 4 weeks** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 376 MB | 19 MB |
| Requires iOS | **15.6** | 16.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Garmin New Zealand Ltd](https://appshunter.io/developer/557485484) | [SailTimer Inc.](https://appshunter.io/developer/326309854) |

## What reviewers say

### Cortex Onboard

[App page](https://appshunter.io/ios/app/cortex-onboard/id1483406085)

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.

**Highlights:** Configure and update Cortex devices, View AIS information and alerts, Manage Anchor Watch, Monitor vessel sensors, Connect NMEA 2000 instruments

**In-app purchases:** none


### SailTimer API™

[App page](https://appshunter.io/ios/app/sailtimer-api/id1562869275)

This app bridges the gap between your SailTimer Wind Instrument and other navigation or performance apps. It also offers access to crowdsourced wind maps and marine weather animations through a subscription, enhancing your sailing experience with real-time wind data.

**Highlights:** Integrates with SailTimer Wind Instrument, Delivers wind data to partner apps, Crowdsourced wind maps, Marine weather animations, Supports chartplotter apps, Real-time wind data

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Crowdsourced Wind Maps - Monthly | $2.99 | per month |
| WNI Marine Weather - Monthly | $2.99 | per month |
| AI Forecasts - Monthly | $2.99 | per month |
| Crowdsourced Wind Maps - Yearly | $19.99 | per year |
| WNI Marine Weather - Yearly | $19.99 | per year |
| AI Forecasts - Yearly | $19.99 | per year |


## Frequently asked questions

### Is Cortex Onboard free?

Cortex Onboard is free to download, with no in-app purchases.

### Is SailTimer API™ free?

SailTimer API™ is free to download, with in-app purchases available.

### Which has better reviews, Cortex Onboard or SailTimer API™?

SailTimer API™ is rated higher. Cortex Onboard averages 3.8 out of 5 from 12 ratings, while SailTimer API™ averages 5.0 from 1 ratings.

### Do Cortex Onboard or SailTimer API™ have ads?

Neither Cortex Onboard nor SailTimer API™ shows ads.

### Which is updated more often, Cortex Onboard or SailTimer API™?

Cortex Onboard ships an update every 2 months, and SailTimer API™ every 4 weeks. Most recently, Cortex Onboard was updated on June 7, 2026 and SailTimer API™ on August 19, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*