# Bison Range vs TrailStamp

The clearest difference is in-app purchases: Bison Range at none against TrailStamp's 1. Bison Range also leads on iOS requirement (16.0 vs 26.4). TrailStamp's advantage is update cadence (every 2 weeks vs monthly). On price, ads and device support there is nothing between them.

Both are free to download. TrailStamp sells 1 one-off in-app purchase. Bison Range asks for nothing beyond the download.

Bison Range ships an update monthly, TrailStamp every 2 weeks. The most recent releases landed on November 8, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | Bison Range | TrailStamp |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (2 ratings)](https://appshunter.io/ios/app/trailstamp/id6763816475/reviews)** |
| Number of ratings | — | **2** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Monthly | **Every 2 weeks** |
| Monetization | — | Free with in-app purchases |
| Size | 91 MB | 256 MB |
| Requires iOS | **16.0** | 26.4 |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [Confederated Salish and Kootenai Tribes](https://appshunter.io/developer/1586824919) | [RICHARD JUSTIN SOUDER](https://appshunter.io/developer/1895505722) |

## What reviewers say

### Bison Range

[App page](https://appshunter.io/ios/app/bison-range/id6752258908)

**Features:** macOS Compatibility

**In-app purchases:** none


### TrailStamp

[App page](https://appshunter.io/ios/app/trailstamp/id6763816475)

This app helps you track your visits to U.S. National Parks, collect digital stamps, and build a personalized memory journal. Explore an interactive map, plan future trips, and earn achievements as you visit more parks.

**Highlights:** Collect digital park stamps, Log visits with notes and photos, Interactive map of all national parks, Plan multi-park trips, Earn ranks and achievements, iCloud sync across devices, Real-time park data from NPS

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| TrailStamp Passport Unlock | $4.99 | one-time |


## Frequently asked questions

### Is Bison Range free?

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

### Is TrailStamp free?

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

### Do Bison Range or TrailStamp have ads?

Neither Bison Range nor TrailStamp shows ads.

### Which is updated more often, Bison Range or TrailStamp?

Bison Range ships an update monthly, and TrailStamp every 2 weeks. Most recently, Bison Range was updated on November 8, 2026 and TrailStamp on November 5, 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.*