# RouteTrip USA vs Shackleton Challenges

RouteTrip USA and Shackleton Challenges are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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

Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on October 18, 2026 and October 2, 2026 respectively.

## The numbers

| Metric | RouteTrip USA | Shackleton Challenges |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | Every 2 months |
| Size | 52 MB | 52 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [RouteTrip USA Ltd](https://appshunter.io/developer/1748551965) | [SHACKLETON DESIGN AND MANUFACTURING COMPANY LTD](https://appshunter.io/developer/1817643197) |

## What reviewers say

### RouteTrip USA

[App page](https://appshunter.io/ios/app/routetrip-usa/id6503245920)

**In-app purchases:** none


### Shackleton Challenges

[App page](https://appshunter.io/ios/app/shackleton-challenges/id6746647746)

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

**In-app purchases:** none


## Frequently asked questions

### Is RouteTrip USA free?

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

### Is Shackleton Challenges free?

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

### Do RouteTrip USA or Shackleton Challenges have ads?

Neither RouteTrip USA nor Shackleton Challenges shows ads.

### Which is updated more often, RouteTrip USA or Shackleton Challenges?

RouteTrip USA ships an update every 2 months, and Shackleton Challenges every 2 months. Most recently, RouteTrip USA was updated on October 18, 2026 and Shackleton Challenges on October 2, 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.*