Sidekick: Fitness Challenges
Step Challenges with Friends
Only for iPhone
Free · In‑App Purchases · Designed for iPhone. Not verified for macOS.
iPhone
Grab a friend and win the Duo Trophy together! Step, workout and sleep challenges for Oura, WHOOP, Garmin, Fitbit, smartwatches and more. Your Health data stays private.
Team up with one friend, hit your own step, workout or sleep goals, and win the Duo Trophy together.
Sidekick turns your smartwatch, Oura Ring, WHOOP, Garmin, Ultrahuman or Fitbit into friendly two-person challenges.
No rankings, no pressure. Just you, your buddy, and a shared win.
CHALLENGES THAT LIFT YOU BOTH UP
Pick a step challenge, a workout-days challenge or a sleep consistency challenge. Each of you sets a personal daily goal. When you both hit yours, you both win. It is accountability that feels like teamwork.
WORKS WITH THE WEARABLE YOU ALREADY HAVE
Sidekick reads from Apple Health, so it works with smartwatches, Oura Ring, WHOOP, Garmin, Ultrahuman, Fitbit and any device that syncs to Apple Health. It even detects your wearable automatically, so setup takes seconds.
YOUR DAY AT A GLANCE
The Today dashboard shows your steps ring, daily streak and a week streak strip, plus tiles for workouts, sleep and active energy. One look tells you exactly where you stand.
SYNC CHECK: NO MORE MISSING DATA
Wearable stopped syncing? Sync Check spots when data stops flowing and walks you through the exact fix, step by step. If your device goes quiet, Sidekick sends a gentle reminder so your streak stays safe.
CHEERS, NUDGES AND REMATCHES
Send a cheer when your partner crushes their goal, or a friendly nudge when they need a push. Invite friends with a link or QR code, and rematch past challenges anytime.
TROPHIES WORTH CHASING
Earn 3D trophies and milestones, including the Duo Trophy, the Sleep Streak trophy, and step and workout milestones. Every win is one you celebrate together.
PRIVATE BY DESIGN
Only your challenge progress is shared with your friend. Your raw Health data stays on your iPhone.
SIDEKICK PREMIUM
Unlock 90-day and 1-year trends for steps, sleep and active energy, plus your full streak history. Available for $2.99 per month or $19.99 per year. Payment is charged to your Apple ID account and renews automatically unless canceled at least 24 hours before the end of the current period. Manage or cancel anytime in your App Store account settings.
Grab a friend, start your first challenge, and win together. Download Sidekick today.
Terms of Use: https://me39u0acwhfdkw1jx1srm-web.rork.live/terms
Privacy Policy: https://me39u0acwhfdkw1jx1srm-web.rork.live/privacy
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
The developer, Daniel Gnecco, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Linked to You
The following data may be collected and linked to your identity:
- Health & Fitness
- Contact Info
- User Content
- Identifiers
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Daniel Gnecco
- Size
- 8.7 MB
- Category
- Health & Fitness
- Compatibility
Requires iOS 18.0 or later.
- iPhone
Requires iOS 18.0 or later. - Mac
Requires macOS 15.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 2.0 or later.
- iPhone
- Languages
- English
- Age Rating
9+
- 9+
- Contains
User-Generated Content
Health or Wellness Topics
- In-App Purchases
Yes
- Premium Monthly $2.99
- Premium Yearly $19.99
- Copyright
- © 2026 Daniel Gnecco