GPS Sprint Tracking

Leg It!

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.

🏷️ Launch Sale — Download for $4.99 $3.99 · Ends Apr 30
Leg It! Live Speedometer
32
Animals
31
Athletes
23 mph
Max Challenge
Sprints

See the app
Dashboard
Live Speedometer
Animal Challenge
Weekly Tournaments
Rankings
Community
Analytics
Training Programs

⚡ Core Feature

Real-time GPS
Sprint Tracking

Every sprint measured with precise GPS speed. See your velocity the moment you hit it, then compare it against your personal best.

Live Speedometer
📍
Doppler GPS Speed
Uses Doppler shift — not position-difference estimates — for accurate speed readings even in short sprints.
🏆
Personal Records
Your all-time top speed is tracked automatically. Every sprint is a chance to set a new PR.
📈
Sprint History & Analytics
Every sprint logged with speed profile, distance, and step count. Track progress over days and weeks.
⛰️
Elevation & Grade
Uphill sprints get credit. Live incline grade shows you how hard the terrain is pushing back.

🐾 Animal Challenge

Race 32 Animals.
Start with a Penguin.

Each animal has HP. Beat it enough times to deplete its health and unlock the next — faster — creature. Can you reach the Dragon?

Animal Challenge
🐧 Penguin 5 mph
🐇 Rabbit 11 mph
🐕 Dog 12 mph
🦌 Deer 13 mph
🐺 Wolf 14 mph
🦁 Lion 14.5 mph
🐎 Horse 17 mph
🦍 Gorilla 18 mph
+ more …
🐉 Dragon 23 mph
❤️
HP System
Each animal has health points. Beat it enough times to drain its HP and unlock the next challenge.
🔓
Sequential Unlocks
Animals unlock in strict order. You must master each speed tier before moving to the next creature.
📅
Daily Attempts
Free runners get 3 animal challenges per day. Pro members get 10 — more chances to advance faster.

❤️‍🔥 Health Impact

Watch Your Body
Transform

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.

42 /100
Health Score
✓ Beginner
Intermediate
Advanced
Elite
10 of 24 milestones unlocked
Health Impact Body Map
❤️
Cardio Boost
Your resting heart rate drops, VO₂ max climbs, and cardiac output grows — measurable changes beginning after just 6 training days.
🔥
Fat Burning Mode
Sprinting triggers EPOC — your body burns calories for 24–48 hours after each session. Mitochondrial density rises with every consistent week.
💪
Muscle Power
Fast-twitch fibers activate, hypertrophy, and fire more efficiently. Peak power output measurably increases from your first 20 sessions.
🦴
Bone Strength
Sprint impact triggers osteoblast activity and bone mineral density gains — measurable improvements start at 8 weeks of consistent training.
🧠
Mental Clarity
Sprinting floods your brain with BDNF, dopamine, and serotonin. Neurogenesis and reduced anxiety follow within 30 training days.
🩸
Metabolic Health
GLUT4 transporters activate, insulin sensitivity improves, and fasting glucose drops — without changing your diet. Active after just 4 weeks.

🏆 Weekly Tournaments

Compete in Weekly
Speed Tournaments

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.

🏊
Pool-Based Competition
You're matched against runners at your level each week. Beat your pool to climb into a tougher one.
🔄
Weekly Resets
Rankings reset every Monday and Thursday. No advantage carries over — every week is a fresh chance to top the leaderboard.
⬆️
Climb the Ranks
Finish at the top of your pool and advance to more competitive pools. Keep pushing your speed to keep climbing.
Weekly Tournaments

⚔️ The Gauntlet

Race Legendary
Athletes

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.

🏀 Basketball
🏈 Football
⚽ Soccer
🏃 Track & Field
🎾 Tennis
🏀
The Specimen
14.8 mph
🏈
The Architect
14.3 mph
The Machine
18.1 mph
🏈
The Shadow
21.0 mph
🏃
The Legend
24.0 mph
🏃
The Sovereign
24.4 mph

+ 25 more athletes across all sport tiers  ·  Pro feature


🤝 Relay Races

Sprint as a Team

Relay races bring your crew together. Each runner contributes their leg of the race — combined efforts determine the team's result. Every member matters.

🏃‍♂️🏃‍♀️
Team Sprint Relays
Multiple runners each sprint their leg. Everyone's speed is combined into a single team score.
⏱️
Real-time Progress
Watch your team's relay unfold in real time as each runner submits their leg of the race.
🥇
Team Rankings
Relay results feed into team leaderboards. The best teams rise together each week.

⚔️ 1v1 Duels

Challenge Friends
Head to Head

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.

Community & Friends
👥
Direct Challenges
Send a duel request to any friend in the app. They sprint, you sprint — highest top speed wins.
🔥
Win Streaks
Your duel win streak is tracked and displayed on your profile. Defend it — or chase someone else's.
📊
Duel History
See every duel you've ever run — who you beat, who beat you, and by how much. The record never lies.

🏫 School Leaderboards

Sprint for
Your School

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.

🥈
Westfield High
4,820 pts
🥇
Riverside Academy
6,440 pts
🥉
Lincoln Charter
3,910 pts
Weekly points — resets every Monday
K-12 schools and colleges compete separately
Every sprint contributes points
Live school ranking tables
Search and join your school easily
College alumni leaderboard — represent your university
Rankings Leaderboard

📋 Training Plans

Get Faster
with a Plan

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

Training Programs
📆
Day-by-Day Structure
Sprint sessions, drills, and rest days planned out for you. Just follow the schedule and get faster.
🎯
Speed Goals
Set your target speed and the plan works backward to get you there — one session at a time.
💪
Drills Included
Warm-up exercises, sprint form cues, and cool-down routines included with every session.

🎯 Speed Goals

Set a Target.
Chase It Down.

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.

🎯
Personal Speed Targets
Set a max speed goal and watch your progress close in on it sprint by sprint. Every run counts toward your target.
📈
Progress Tracking
See exactly how close you are to your goal after every sprint. The gap shrinks — and you see it shrink in real time.
🏆
Goal Completion Celebration
The moment you hit your target speed, the app celebrates. Then it's time to set the next goal and keep pushing.


🎮 Gamification

Every Sprint
Earns Rewards

XP, levels, badges, mastery tiers — Leg It! turns running into a progression system. The faster and more consistent you are, the more you unlock.

Level 12 — Sprinter
3,400 / 5,000 XP to next level
🏅
Mastery Tier — Silver II
Keep sprinting to reach Gold tier
🏅
Badges
Dozens of badges for speed milestones, challenge wins, streaks, and personal records. Each one a proof of effort.
⬆️
XP & Levels
Every sprint earns XP. Level up through Beginner, Sprinter, Pacer, Racer, and Elite as you improve.
👨‍👩‍👧
Family Profiles
Pro members can add up to 3 child profiles under one account — track your whole family's progress together.
Analytics

Free vs Pro

Start sprinting for free. Upgrade when you want the full competitive experience.

Free
$0
forever
Pro Annual
$34.99
per year
Save 42%
Lifetime
$79.99
one time
Pay once, own it
Feature Free Pro ⚡
Sprint Tracking
GPS Speed & Distance
Sprint HistoryLast 7 daysFull history
Personal Records
Leaderboards
Global Leaderboard
Friends Leaderboard
Age Group Leaderboard
Gender Leaderboards
Most Improved & Streak
Teams Leaderboard
Goals & Analytics
Active Goals1 goalUnlimited
Health Score
Health Projections (VO₂ max)
Advanced Analytics
Speed Trend Charts
Export Sprint Data
Competitive
The Gauntlet
Duels
Teams
Tournament Sprints / Round12
Training
Animal Challenges / Day310
Training Plans
Badges & Rewards
Core Badges
Full Badge Collection
Family
Child ProfilesUp to 3
Ready to go all-in?
Download the app and upgrade to Pro in seconds.
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