JackRabbit - Track-Based Interval Training for iPhone & Apple Watch

GPS-based pace with a rolling average so you always know exactly how fast you're running.

Seamless sync between devices. Build workouts on your phone, run them from your wrist.

Build your own interval training plans with configurable distances, rest periods, and target paces.

Powerful on iPhone

Home dashboard Weekly stats, workout streaks, and your recent activity at a glance.
Discover workouts Browse by category — Beginner, Intermediate, Advanced, Speed, and Endurance.
Calendar view Monthly workout tracking with visual indicators and stats.
Performance analysis Track pace improvements by distance — 100m, 400m, 800m, and mile.
Custom builder Create interval workouts with flexible run/rest combos and target paces.
Voice prompts Hands-free audio cues for interval changes, countdowns, and completion.

HealthKit integration Standalone workout tracking with real heart rate and GPS distance.
Real-time metrics Heart rate, GPS pace, elapsed time, and lap splits on your wrist.
Double-tap & Action Button Record laps with a double-tap or the Action Button on Apple Watch Ultra.
Haptic feedback Feel interval transitions without looking at the screen.
Sensor readiness GPS signal and heart rate indicators so you start when you're ready.
Voice prompts Audio cues from the Watch speaker for hands-free interval guidance.

4 default templates plus discoverable workouts across Beginner, Intermediate, Advanced, Speed, and Endurance categories.

Heart rate, GPS pace with rolling average, elapsed time, and live lap splits — all updating in real time.

Pace metrics broken down by distance — 100m, 400m, 800m, and mile — with best performances tracked over time.

Calendar view with monthly stats, detailed lap breakdowns, and interval pace graphs for every completed workout.

Design your own interval workouts with configurable run/rest distances, target paces, difficulty ratings, and categories.

Audio cues announce interval changes, count down rest periods, and confirm workout events — hands-free training.