# Sail Trails vs Boat Units

The clearest difference is update cadence: Boat Units at every 3 days against Sail Trails's every 5 months. Sail Trails's advantage is iOS requirement (13.1 vs 18.6). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Sail Trails ships an update every 5 months, Boat Units every 3 days. Both last shipped on November 7, 2026.

## The numbers

| Metric | Sail Trails | Boat Units |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 3 days** |
| Size | 75 MB | 7 MB |
| Requires iOS | **13.1** | 18.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Two* States* Away*](https://appshunter.io/developer/379800400) | [Marcus Johansson](https://appshunter.io/developer/1659201231) |

## What reviewers say

### Sail Trails

[App page](https://appshunter.io/ios/app/sail-trails/id1581317739)

**Features:** macOS Compatibility

**In-app purchases:** none


### Boat Units

[App page](https://appshunter.io/ios/app/boat-units/id1659201229)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Sail Trails free?

Sail Trails is free to download, with no in-app purchases.

### Is Boat Units free?

Boat Units is free to download, with no in-app purchases.

### Do Sail Trails or Boat Units have ads?

Neither Sail Trails nor Boat Units shows ads.

### Which is updated more often, Sail Trails or Boat Units?

Sail Trails ships an update every 5 months, and Boat Units every 3 days. Most recently, Sail Trails was updated on November 7, 2026 and Boat Units on November 7, 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.*