# Hammerhead Companion — Sync rides, routes, and more

> Companion app for Karoo bike computer: sync rides, routes, workouts, and notifications. (iPhone/iPad app by SRAM LLC.)

- Source: https://appshunter.io/ios/app/hammerhead-companion/id6476576279 (this page in markdown: same URL + `.md`)
- Developer: [SRAM LLC](https://appshunter.io/developer/427232200)
- Category: Health & Fitness
- Price: Free
- Rating: 2.00/5 from 94 App Store ratings · 146 written reviews indexed
- Age rating: 4+
- Requires: iOS 17.6 · 28 MB
- Languages: French (France), German (Germany), American English, Chinese (Simplified, China), Chinese (Traditional, Taiwan), Korean, European Spanish, Italian, Japanese, European Portuguese
- Released: 2024-05-15
- Data updated: 2026-08-21
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/hammerhead-companion/id6476576279/reviews.md

## What is Hammerhead Companion?

Enhance your cycling experience with the Hammerhead Companion App! Transfer crucial data from your mobile device to your Karoo with - or without - Wi-Fi.

- Ride Upload: Automatically upload your ride to your favorite training platforms like Strava, Ride With GPS, TrainingPeaks, and more!
- Route To Point: Pull up Google or Apple Maps on your phone and send a pinned location directly to your Karoo via the Companion App.
- Route Sync: Instantly sync routes from the Hammerhead Dashboard to Karoo without Wi-Fi. The Hammerhead Companion App allows you to easily share routes with friends or load a route on the fly.
- Workout Sync: Connect to your 3rd party training platforms wherever you are so you never miss a workout. Adjust your workout for the day and Karoo will sync it automatically.
- Live Tracking: Quickly share your live tracking link utilizing your phone’s native share menu and give your friends and family peace of mind while you’re out on the road.
- Phone Notifications: See your phone’s notifications on your Hammerhead Karoo when you ride.

The Hammerhead Companion App is designed specifically for use with the all-new Hammerhead Karoo bike computer. Visit hammerhead.io to learn more.

## Key features

- Ride upload to training platforms
- Send locations from phone maps to Karoo
- Sync routes without Wi-Fi
- Workout synchronization
- Live tracking sharing
- Phone notifications on Karoo

## What do users think of Hammerhead Companion?

**Pros**

- ⭐ Excited for new app
- ⭐ Karoo 2 is a great device

**Cons**

- ❌ Only supports latest Karoo device
- ❌ Karoo 2 not supported
- ❌ Unable to pair new Karoo device
- ❌ App doesn't offer any functionality beyond connecting to phone
- ❌ Feels like a money grab to force users to upgrade
- ❌ Lack of support for previous devices is inexcusable
- ❌ App is completely useless for Karoo 2 owners
- ❌ Terrible customer experience, no brand loyalty

## Recent user reviews (10 of 146)

All indexed reviews: https://appshunter.io/ios/app/hammerhead-companion/id6476576279/reviews.md

### 1/5 — Terrible app

*2026-08-18*

This device is so expensive and yet the app is useless. One the same day I bought my Karoo 3, my wife purchased the Wahoo. That device has an amazing app that is very useful, so much so that I have regretted purchasing the hammerhead.

### 1/5 — Nulle

*2026-08-15*

L’application ne fonctionne pas. Je regrette l’achat de ce gps.

### 1/5 — Obsolescence programmée

*2026-07-24*

Karoo 2 pas compatible, franchement…..

### 1/5 — Karoo2

*2026-07-12*

Le Karoo 2 n’est pas compatible.

### 2/5 — App funktioniert aber …

*2026-07-07*

Die App funktioniert. Das ist aber auch alles gute an ihr. Im Gegensatz zum Gerät ist die App langsam, man merkt das sie auf einer webapp basiert, und wirkt nicht zeitgemäß. 
Es benötigt eine komplette Revision der App. Dann bitte mit Analyse Funktion, das anzeigen von auf dem Geräte hinterlegten Rädern mit Kilometerstand und auch das gesamte Design kann schneller aufgeräumter und moderner werden. 

Bis dahin funktionieren aber Routenplanung und Sync mit dem Geräty mehr darf man nicht so richtig erwarten.

### 1/5 — Live tracking is poor

*2026-06-10*

Connection to my iPhone constantly drops during rides and only intermittently reconnects.

### 1/5 — Gouging for basic features

*2026-06-01*

Oh you have a K2 you bought for $500 and want to easily send and track things with smartphones that have been around for a decade? Too bad, pay another $500 for all new hardware and one slightly improved codebase of software, so now you’re $1000 out of pocket equal to or more expensive than a smartphone itself, for software features that could be a patch. Mind you one major draw of the Hammerhead is that it’s basically a smartphone with robust software capabilities.

### 5/5 — Works well with my Karoo 3

*2026-05-28*

It does what I need for now, works well with the Karoo 3 and haven’t had any issues as such.

### 4/5 — Good tool keeps getting better

*2026-05-28*

The ability to see my routes, rides, and workouts on my phone is nice. The Apple Health integration has improved significantly, the two remaining enhancements I’d like to see are elevation and route information included with the data sent to Apple Health

### 5/5 — App macht was Sie soll

*2026-05-25*

App funktioniert tadellos. Habe weniger Synchronisation Probleme als bei Garmin.
Globale Markierungen auf der Karte die bei allen Routen angezeigt werden (Trinkwasser!) sind ein Hammer Feature.

## Frequently asked questions about Hammerhead Companion

### What does the Hammerhead Companion App do?

The Hammerhead Companion App enhances your cycling experience by allowing you to transfer crucial data like rides, routes, and workouts from your mobile device to your Hammerhead Karoo bike computer. It also enables features like live tracking and phone notifications on your Karoo.

### How does the app sync ride data?

The app automatically uploads your completed rides to popular training platforms such as Strava, Ride With GPS, and TrainingPeaks. This ensures your performance data is easily accessible for analysis and sharing.

### Can I sync routes with this app?

Yes, you can instantly sync routes from the Hammerhead Dashboard to your Karoo without needing Wi-Fi. You can also pull up locations from Google or Apple Maps on your phone and send them directly to your Karoo via the Companion App.

### Is the Hammerhead Companion App free to use?

Based on the provided information, the Hammerhead Companion App is free to use. There are no mentions of in-app purchases or subscription fees.

### What devices is this app compatible with?

The Hammerhead Companion App is designed specifically for use with the all-new Hammerhead Karoo bike computer. It leverages your mobile device's capabilities to enhance the Karoo's functionality.

## Version history (last 5 releases)

### 1.35.0 — 2026-08-20

We updated our Apple Health integration so that paused time is not included in the workout time.

### 1.34.0 — 2026-07-09

General bug fixes and performance improvements.

### 1.33.0 — 2026-05-28

General bug fixes and performance improvements.

### 1.32.0 — 2026-05-14

We updated our Apple Health integration so that activities synced to Apple Health from Karoo show power, heart rate, cadence, and speed as time series data rather than a single average value.

### 1.30.0 — 2026-04-23

We’ve fixed an issue with Apple Health sync would intermittently only sync time of workout without any other data.

## Apps similar to Hammerhead Companion

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [The Breakaway Cycling Training](https://appshunter.io/ios/app/the-breakaway-cycling-training/id1527105594) | 4.6 (845) | Free | Health & Fitness |
| [HeartCast: Heart Rate Monitor](https://appshunter.io/ios/app/heartcast-heart-rate-monitor/id1499771124) | 4.0 (24) | Free | Health & Fitness |
| [HRM Heart Rate Monitor](https://appshunter.io/ios/app/hrm-heart-rate-monitor/id1671488058) | 3.1 (23) | Free | Health & Fitness |
| [Rapha Cycling Club](https://appshunter.io/ios/app/rapha-cycling-club/id1065898804) | 4.4 (89) | Free | Health & Fitness |
| [TrainerRoad](https://appshunter.io/ios/app/trainerroad/id934224107) | 4.9 (21,428) | Free | Health & Fitness |
| [EatMyRide: Sports & Nutrition](https://appshunter.io/ios/app/eatmyride-sports-and-nutrition/id1503689418) | 4.2 (42) | Free | Health & Fitness |

## More apps by SRAM LLC

- [Qalvin Legacy](https://appshunter.io/ios/app/qalvin-legacy/id432171219)
- [Vuka Fit](https://appshunter.io/ios/app/vuka-fit/id653603188)
- [ShockWiz](https://appshunter.io/ios/app/shockwiz/id1134836462)
- [SRAM AXS](https://appshunter.io/ios/app/sram-axs/id1430049231)
- [RockShox TrailHead](https://appshunter.io/ios/app/rockshox-trailhead/id1441888438)

All apps by SRAM LLC: https://appshunter.io/developer/427232200

## Related topics

[hammerhead karoo](https://appshunter.io/ios/topics/hammerhead-karoo) · [hammerhead](https://appshunter.io/ios/topics/hammerhead) · [hammerhead companion](https://appshunter.io/ios/topics/hammerhead-companion) · [karoo](https://appshunter.io/ios/topics/karoo) · [sram](https://appshunter.io/ios/topics/sram) · [sram red](https://appshunter.io/ios/topics/sram-red) · [sram etap](https://appshunter.io/ios/topics/sram-etap) · [wifi data](https://appshunter.io/ios/topics/wifi-data) · [bluarmor companion app](https://appshunter.io/ios/topics/bluarmor-companion-app) · [sram axs app](https://appshunter.io/ios/topics/sram-axs-app)

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-21.*