# MTB World Series vs TrailRig

The clearest difference is in-app purchases: MTB World Series at none against TrailRig's 1. TrailRig's advantage is ads (none vs shown). On price, update cadence, device support and iOS requirement there is nothing between them.

Both are free to download. TrailRig sells 1 one-off in-app purchase. MTB World Series asks for nothing beyond the download.

Both ship on a similar rhythm, roughly every 4 days. The most recent releases landed on October 25, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | MTB World Series | TrailRig |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 4 days | Every 4 days |
| Size | 70 MB | 18 MB |
| Requires iOS | 18.1 | **17.0** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [StayLive AB](https://appshunter.io/developer/1405632964) | [Zoran Prole](https://appshunter.io/developer/6786461516) |

## What reviewers say

### MTB World Series

[App page](https://appshunter.io/ios/app/mtb-world-series/id6760396870)

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

**In-app purchases:** none


### TrailRig

[App page](https://appshunter.io/ios/app/trailrig/id6786461514)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| TrailRig Pro | $9.99 | one-time |


## Frequently asked questions

### Is MTB World Series free?

MTB World Series is free to download, with no in-app purchases.

### Is TrailRig free?

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

### Do MTB World Series or TrailRig have ads?

MTB World Series shows ads; TrailRig does not.

### Which is updated more often, MTB World Series or TrailRig?

MTB World Series ships an update every 4 days, and TrailRig every 4 days. Most recently, MTB World Series was updated on October 25, 2026 and TrailRig on October 15, 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.*