# TUnIS Navigation vs Trails MTB

The clearest difference is in-app purchases: TUnIS Navigation at none against Trails MTB's 2. Trails MTB's advantage is update cadence (every 4 days vs every 4 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Trails MTB sells 2 in-app purchases, starting at $1.99 per month. TUnIS Navigation asks for nothing beyond the download.

TUnIS Navigation ships an update every 4 months, Trails MTB every 4 days. The most recent releases landed on September 23, 2026 and September 30, 2026 respectively.

## The numbers

| Metric | TUnIS Navigation | Trails MTB |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 4 days** |
| Size | 95 MB | 15 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [VMT - gmbh](https://appshunter.io/developer/963405958) | [TDY AS](https://appshunter.io/developer/1486896932) |

## What reviewers say

### TUnIS Navigation

[App page](https://appshunter.io/ios/app/tunis-navigation/id1381360108)

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

**In-app purchases:** none


### Trails MTB

[App page](https://appshunter.io/ios/app/trails-mtb/id6775745206)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Trails Pro (Monthly) | $1.99 | per month |
| Trails Pro (Annual) | $17.99 | per year |


## Frequently asked questions

### Is TUnIS Navigation free?

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

### Is Trails MTB free?

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

### Do TUnIS Navigation or Trails MTB have ads?

Neither TUnIS Navigation nor Trails MTB shows ads.

### Which is updated more often, TUnIS Navigation or Trails MTB?

TUnIS Navigation ships an update every 4 months, and Trails MTB every 4 days. Most recently, TUnIS Navigation was updated on September 23, 2026 and Trails MTB on September 30, 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.*