# TraiLink vs DirtOS

The clearest difference is in-app purchases: TraiLink at none against DirtOS's 1. DirtOS's advantage is iOS requirement (15.6 vs 17.0). On price, review sentiment, update cadence and ads there is nothing between them.

Both are free to download. DirtOS sells 1 in-app purchase, starting at $49.99 per year. TraiLink asks for nothing beyond the download.

Both ship on a similar rhythm, roughly fortnightly. The most recent releases landed on October 30, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | TraiLink | DirtOS |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (3 ratings)](https://appshunter.io/ios/app/dirtos/id6757966180/reviews)** |
| Number of ratings | — | **3** |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Fortnightly | Fortnightly |
| Monetization | **Free** | Freemium |
| Size | 56 MB | 153 MB |
| Requires iOS | 17.0 | **15.6** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [AppPlusPlus Inc.](https://appshunter.io/developer/1495730718) | [Sean Jeffrey Connell](https://appshunter.io/developer/1808021277) |

## What reviewers say

### TraiLink

[App page](https://appshunter.io/ios/app/trailink/id6689492638)

Stay connected with your group even when you're off the grid. This app allows you to see friends' locations on a map and send messages without needing a cellular signal. It's designed to work with compatible tracking devices.

**Highlights:** Real-time group member location tracking, Offline messaging, Group creation and management, Device settings modification, Disconnection notifications

**In-app purchases:** none


### DirtOS

[App page](https://appshunter.io/ios/app/dirtos/id6757966180)

Navigate off-road and backcountry with specialized GPS tools. Import routes, receive audio cues, and track groups live, even offline. Designed for use in challenging conditions with customizable quick keys.

**Highlights:** Import GPX routes, Turn-by-turn audio navigation, Next 3 waypoints display, Quick Keys for on-the-fly waypoint marking, Live and offline group tracking, Works offline with downloaded maps, 3D flyover route preview

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| PreRun Pro | $49.99 | per year |


## Frequently asked questions

### Is TraiLink free?

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

### Is DirtOS free?

DirtOS is free to download, with in-app purchases available.

### Do TraiLink or DirtOS have ads?

Neither TraiLink nor DirtOS shows ads.

### Which is updated more often, TraiLink or DirtOS?

TraiLink ships an update fortnightly, and DirtOS fortnightly. Most recently, TraiLink was updated on October 30, 2026 and DirtOS on October 31, 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.*