Sprint faster. Beat the best.
Track your top speed with GPS, race animals and legendary athletes, compete in weekly tournaments, and go head-to-head with friends — all in one app.








Every sprint measured with precise GPS speed. See your velocity the moment you hit it, then compare it against your personal best.
Each animal has HP. Beat it enough times to deplete its health and unlock the next — faster — creature. Can you reach the Dragon?

Sprinting does more than build speed. Leg It! tracks 6 science-backed health dimensions and rolls them into a single Health Score — from 0 to 100 — so you can see exactly what your training is doing to your body.

Every week you're placed in a competitive pool. Sprint your hardest, earn ranking points, and try to top your pool. Rankings reset every Monday and Thursday — no lead is permanent.

31 of the most celebrated athletes — from basketball stars to sprint champions. Match their recorded top speed to advance. Beat them all to conquer The Gauntlet.
+ 25 more athletes across all sport tiers · Pro feature
Relay races bring your crew together. Each runner contributes their leg of the race — combined efforts determine the team's result. Every member matters.
Pick any friend and challenge them directly. Your best sprint in the session goes up against theirs — the faster runner wins. Streaks track your winning record.

Every sprint you run earns weekly points that go toward your school's ranking. K-12 students and college alumni each compete on their own leaderboard.

Structured sprint programs built into the app. Set a target speed and follow a day-by-day plan to get there. Pro feature.

Pick a speed you want to hit — 12 mph, 15 mph, your first sub-10-second sprint — and the app tracks your progress every time you run. When you hit it, you'll know.
XP, levels, badges, mastery tiers — Leg It! turns running into a progression system. The faster and more consistent you are, the more you unlock.

Start sprinting for free. Upgrade when you want the full competitive experience.
| Feature | Free | Pro ⚡ |
|---|---|---|
| Sprint Tracking | ||
| GPS Speed & Distance | ✓ | ✓ |
| Sprint History | Last 7 days | Full history |
| Personal Records | ✓ | ✓ |
| Leaderboards | ||
| Global Leaderboard | ✓ | ✓ |
| Friends Leaderboard | — | ✓ |
| Age Group Leaderboard | — | ✓ |
| Gender Leaderboards | — | ✓ |
| Most Improved & Streak | — | ✓ |
| Teams Leaderboard | — | ✓ |
| Goals & Analytics | ||
| Active Goals | 1 goal | Unlimited |
| Health Score | ✓ | ✓ |
| Health Projections (VO₂ max) | — | ✓ |
| Advanced Analytics | — | ✓ |
| Speed Trend Charts | — | ✓ |
| Export Sprint Data | — | ✓ |
| Competitive | ||
| The Gauntlet | — | ✓ |
| Duels | — | ✓ |
| Teams | — | ✓ |
| Tournament Sprints / Round | 1 | 2 |
| Training | ||
| Animal Challenges / Day | 3 | 10 |
| Training Plans | — | ✓ |
| Badges & Rewards | ||
| Core Badges | ✓ | ✓ |
| Full Badge Collection | — | ✓ |
| Family | ||
| Child Profiles | — | Up to 3 |