# Challenger Outdoor vs Grimp

The clearest difference is in-app purchases: Grimp at none against Challenger Outdoor's 1. Grimp also leads on review sentiment (100% vs 86%). Challenger Outdoor's advantage is update cadence (weekly vs every 3 weeks) and device support (3 vs 1). On price and ads there is nothing between them.

Both are free to download. Challenger Outdoor sells 1 one-off in-app purchase. Grimp asks for nothing beyond the download.

Challenger Outdoor ships an update weekly, Grimp every 3 weeks. The most recent releases landed on October 24, 2026 and October 21, 2026 respectively.

## The numbers

| Metric | Challenger Outdoor | Grimp |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (10 ratings)](https://appshunter.io/ios/app/challenger-outdoor/id1325068058/reviews)** | — |
| Number of ratings | **10** | — |
| Positive reviews | 85.7% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Weekly** | Every 3 weeks |
| Monetization | Free with in-app purchases | **Free** |
| Size | 40 MB | 112 MB |
| Requires iOS | **13.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Challenger](https://appshunter.io/developer/1448349563) | [Edgar Clerc](https://appshunter.io/developer/1776810092) |

## What reviewers say

### Challenger Outdoor

[App page](https://appshunter.io/ios/app/challenger-outdoor/id1325068058)

This GPS-based sports app transforms your device into an advanced dashboard for cycling and running. It provides real-time performance metrics, audio-visual navigation, and detailed route analysis. Enhance your training with comprehensive data tracking and route guidance.

**Highlights:** GPS-based tracking, Real-time performance metrics, Audio/visual navigation, Elevation profile view, Power graph, Bluetooth sensor integration

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| PRO Features | $8.99 | one-time |


### Grimp

[App page](https://appshunter.io/ios/app/grimp/id6737510541)

This app helps climbers track their progress, analyze performance, and optimize their training. It offers personalized grade predictions, tools to design and share climbing walls, and detailed logging of every climb. Users can monitor growth through various climbing statistics and access daily training routines or create their own.

**Highlights:** Personalized grade prediction, Spray Wall for designing/sharing routes, Log every climb with details, Track progress and climbing stats, Daily training and custom workouts

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Challenger Outdoor free?

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

### Is Grimp free?

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

### Do Challenger Outdoor or Grimp have ads?

Neither Challenger Outdoor nor Grimp shows ads.

### Which is updated more often, Challenger Outdoor or Grimp?

Challenger Outdoor ships an update weekly, and Grimp every 3 weeks. Most recently, Challenger Outdoor was updated on October 24, 2026 and Grimp on October 21, 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.*