# SafeTug by Trelleborg vs SailTimer API™

The clearest difference is in-app purchases: SafeTug by Trelleborg at none against SailTimer API™'s 6. On price, update cadence, ads and device support there is nothing between them.

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

SafeTug by Trelleborg ships an update fortnightly, SailTimer API™ every 4 weeks. The most recent releases landed on October 25, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | SafeTug by Trelleborg | SailTimer API™ |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/sailtimer-api/id1562869275/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Fortnightly** | Every 4 weeks |
| Monetization | — | Free with in-app purchases |
| Size | 204 MB | 19 MB |
| Requires iOS | 17.0 | **16.6** |
| Devices | iPad | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [Trelleborg Marine Systems Denmark A/S](https://appshunter.io/developer/339152675) | [SailTimer Inc.](https://appshunter.io/developer/326309854) |

## What reviewers say

### SafeTug by Trelleborg

[App page](https://appshunter.io/ios/app/safetug-by-trelleborg/id1450492191)

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

**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 SafeTug by Trelleborg free?

SafeTug by Trelleborg is free to download, with no in-app purchases.

### Is SailTimer API™ free?

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

### Do SafeTug by Trelleborg or SailTimer API™ have ads?

Neither SafeTug by Trelleborg nor SailTimer API™ shows ads.

### Which is updated more often, SafeTug by Trelleborg or SailTimer API™?

SafeTug by Trelleborg ships an update fortnightly, and SailTimer API™ every 4 weeks. Most recently, SafeTug by Trelleborg was updated on October 25, 2026 and SailTimer API™ on October 16, 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.*