# Challenger vs GR Linker

The clearest difference is price: Challenger at Free against GR Linker's $7.99. Challenger also leads on review sentiment (100% vs 58%) and rating (5.0 vs 4.5). GR Linker's advantage is ratings volume (112 vs 6) and chart position (#167 vs unranked). On update cadence, ads, in-app purchases and monetization model there is nothing between them.

Challenger is free to download; GR Linker costs $7.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Challenger holds the better App Store score, 5.0 against 4.5. That said, the two scores are not equally well evidenced: GR Linker has 112 ratings behind it against 6, so its average is the more settled of the two. Written reviews point the same way: 100% of Challenger's written reviews are positive against 58% of GR Linker's.

Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on June 9, 2026 and September 21, 2026 respectively.

## The numbers

| Metric | Challenger | GR Linker |
| --- | --- | --- |
| Price | **Free** | $7.99 |
| Rating | **[5.0 (6 ratings)](https://appshunter.io/ios/app/challenger-local-challenges/id1506143367/reviews)** | [4.5 (112 ratings)](https://appshunter.io/ios/app/gr-linker-image-sync/id1600925588/reviews) |
| Number of ratings | 6 | **112** |
| Positive reviews | **100.0% of reviews** | 57.6% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | Every 2 months |
| Monetization | Free | Free |
| Best chart rank | — | **#167** |
| Size | 56 MB | 13 MB |
| Requires iOS | 15.0 | **14.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [William Leaf](https://appshunter.io/developer/1546529033) | [Hangzhou Yuhang Solo Tech Studio (Individually Owned Business)](https://appshunter.io/developer/1042542440) |

## What reviewers say

### Challenger

[App page](https://appshunter.io/ios/app/challenger-local-challenges/id1506143367)

Discover and create location-based video challenges. Explore challenges near you on a map and share your attempts by uploading videos. Contribute to a growing encyclopedia of local activities.

**Highlights:** Create location-based challenges, Upload challenge attempt videos, Browse challenges on a map, Discover local activities, Contribute to a challenge encyclopedia

**Features:** macOS Compatibility

**In-app purchases:** none


### GR Linker

[App page](https://appshunter.io/ios/app/gr-linker-image-sync/id1600925588)

**Currently charting:** #167 Top Paid · Photo & Video (US App Store)

Wirelessly transfer photos and videos from your Ricoh GR II, GR III, or GR IIIx camera to your phone. Browse, select, and download JPG, RAW, and MOV files with support for multitasking and quick connections.

**Highlights:** Wireless photo and video transfer, Supports JPG, RAW, and MOV formats, Browse camera photos and Exif data, Swipe to select multiple photos, Multitasking concurrent downloads, Quick camera connection

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Challenger free?

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

### Is GR Linker free?

GR Linker costs $7.99, with no in-app purchases.

### Which has better reviews, Challenger or GR Linker?

Challenger is rated higher. Challenger averages 5.0 out of 5 from 6 ratings, while GR Linker averages 4.5 from 112 ratings.

### Do Challenger or GR Linker have ads?

Neither Challenger nor GR Linker shows ads.

### Which is updated more often, Challenger or GR Linker?

Challenger ships an update every 2 months, and GR Linker every 2 months. Most recently, Challenger was updated on June 9, 2026 and GR Linker on September 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.*