# SIGMA LINK vs GC Touren

The clearest difference is update cadence: GC Touren at every 3 weeks against SIGMA LINK's every 4 months. SIGMA LINK's advantage is iOS requirement (12.0 vs 16.0). On price, review sentiment, ads and in-app purchases there is nothing between them.

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

SIGMA LINK ships an update every 4 months, GC Touren every 3 weeks. The most recent releases landed on November 2, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | SIGMA LINK | GC Touren |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[1.5 (8 ratings)](https://appshunter.io/ios/app/sigma-link/id1147984544/reviews)** | — |
| Number of ratings | **8** | — |
| Positive reviews | 9.0% of reviews | **10.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 3 weeks** |
| Monetization | Free | Free |
| Size | 76 MB | 77 MB |
| Requires iOS | **12.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 12+ |
| Developer | [SIGMA-ELEKTRO GmbH](https://appshunter.io/developer/803939887) | [rad-net GmbH](https://appshunter.io/developer/1594439669) |

## What reviewers say

### SIGMA LINK

[App page](https://appshunter.io/ios/app/sigma-link/id1147984544)

Easily transfer training data from compatible devices to your smartphone. View personal bests, statistics, and completed tracks. Sync all your training data, workouts, and sport profiles with cloud integration for constant access.

**Highlights:** Transfer training units, View training statistics, Track personal bests, Manage device settings, Sync with SIGMA CLOUD, Access workouts and sport profiles

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

**In-app purchases:** none


### GC Touren

[App page](https://appshunter.io/ios/app/gc-touren/id6464382883)

This app is your smart companion for cycling adventures, designed for cyclists and event organizers. It allows you to participate in and manage cycling events, track your progress, and connect with like-minded individuals.

**Highlights:** Event participation and management, Progress tracking, Checkpoint scanning, Digital license, Connect with cyclists

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

**In-app purchases:** none


## Frequently asked questions

### Is SIGMA LINK free?

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

### Is GC Touren free?

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

### Do SIGMA LINK or GC Touren have ads?

Neither SIGMA LINK nor GC Touren shows ads.

### Which is updated more often, SIGMA LINK or GC Touren?

SIGMA LINK ships an update every 4 months, and GC Touren every 3 weeks. Most recently, SIGMA LINK was updated on November 2, 2026 and GC Touren on November 3, 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.*