Beta live now on iOS

Peer-to-Peer Fitness Competition

Fitness Is Better
With Stakes.

Challenge friends across steps, distance, pace, sleep, and health scores — with real money on the line. Wearable-verified. Anti-cheat protected. Winner takes all.

Download on TestFlight →

✓

You’re on the list.

We’ll reach out before launch.

iOS only during beta — Android coming soon.

Works with Apple Watch Garmin Whoop Fitbit

Live ChallengeLIVE

10K Step Showdown

7 days remaining • Verified via Apple HealthKit

YOU

8,241

↑ Leading

RIVAL

7,088

1,153 behind

💰 $50 at stake • 3% platform fee

Steps

8.2K

Distance

4.1mi

Pace

9'24"

How It Works

Three Steps.
Zero Excuses.

From challenge to payout in the time it takes to lace up.

Challenge

Pick a rival. Choose your metric — steps, distance, pace, sleep, or composite health score. Set the stakes. Send the challenge. They have 24 hours to accept or walk.

Compete

Your wearable tracks everything in real time. No manual entry. No honor system. Proprietary anti-cheat algorithms filter treadmill noise, car steps, and data anomalies. Every rep is earned.

Collect

When the challenge ends, winnings hit your Harthos wallet automatically. Withdraw to your bank or roll it into the next challenge. A portion of every fee goes to charity.

App Demo

See Harthos
In Action.

Explore real beta screens from challenge creation to health sync, progress tracking, and support before joining the waitlist.

Harthos weekly progress screen showing steps, health highlights, challenge stats, and earnings

01 / Progress

Track weekly progress

See steps, health highlights, challenge stats, streaks, and earnings in one place.

Harthos challenge type screen with one-versus-one challenge selected

02 / Challenge

Choose the challenge format

Pick a head-to-head battle, group league, or squad challenge before setting the rules.

Harthos choose stake screen showing prize pool, payout split, and anti-cheat referee fee

03 / Stake

Set the stake

Preview the prize pool, payout split, and anti-cheat referee fee before continuing.

Harthos health app connection screen showing Apple Health connected and synced metrics

04 / Sync

Connect verified health data

Sync Apple Health metrics like steps, heart rate, sleep, HRV, calories, and distance.

Harthos help and support screen with FAQ and support email

05 / Support

Get support when needed

Access help, FAQs, and support directly from the app experience.

Harthos Hub screen showing activity, season progress, and leaderboard tabs

06 / Hub

Explore the Harthos Hub

View activity, season progress, and leaderboard features as the product expands.

Screens reflect the current beta experience. Final production screens may evolve as Harthos ships updates.

The Platform

Built for Real Competition.

Every feature engineered around one goal: making your fitness actually matter.

⚡

Real-Time Tracking

Live leaderboards sync with Apple HealthKit and Google Health Connect. Watch your competitor’s progress update in real time — no hiding, no surprises until the finish.

📈

5 Competition Metrics

Steps, distance, pace, sleep quality, and composite health scores. Challenge across one or combine them for a true all-around fitness showdown. StepBet only does one.

⚔

1v1 and Group Modes

Head-to-head duels or group competitions up to 20 players. Different stake structures for each format: 3% for 1v1, 5% for groups. More players, bigger pot.

🛡

Anti-Cheat Engine

Proprietary algorithms filter treadmill desk noise, car-generated steps, and manual entry anomalies. Only real physical effort counts. Every challenge is fair by design.

💸

Instant Payouts

Powered by Stripe. Deposit, compete, and withdraw winnings to your bank. Stripe fees absorbed on deposit — you only ever pay the platform fee.

⚖

Skill-Based & Legal

Classified as skill-based contests, not gambling. Gaming law specialists provide a formal legal opinion for each jurisdiction. App Store and Play Store compliant.

Athlete wearing smartwatch during competition

Wearable Integration

Your Watch
Doesn’t Lie.

Harthos reads directly from your wearable. No screenshots. No manual logs. No trust system. Pure data.

🔗

Direct HealthKit / Health Connect sync

Reads verified fitness data straight from the source your wearable already trusts.

🔎

Anomaly detection on every session

Continuous algorithm flags unusual patterns — car steps, treadmill desk cadences, data spikes — and excludes them automatically.

🔓

Cheaters get banned, not penalized

First offense voids the challenge. Repeat offenders are permanently removed. Your winnings are protected.

Anti-Cheat Transparency

How Harthos
Verifies Activity.

Every challenge goes through a verification flow before results are settled. Harthos checks wearable data, movement patterns, and challenge consistency so only real effort counts.

Verified wearable sync

Activity is read directly from Apple HealthKit or Google Health Connect. No screenshots, no manual logs, and no self-reported scores.

Signal consistency checks

Harthos compares steps, distance, timing, pace, and heart-rate patterns against the challenge rules.

Anomaly detection

Suspicious patterns like car-generated steps, treadmill desk cadence, sudden spikes, or impossible pace are flagged automatically.

Result protection

Questionable activity can be excluded before settlement, keeping the leaderboard focused on verified effort.

Fair payout

Only verified activity counts toward the final result before winnings are released to the Harthos wallet.

Built for fair competition: Harthos does not rely on trust, screenshots, or manual entry. The platform verifies challenge activity before payout so winners are decided by verified effort, not manipulated data.

“Financial accountability dramatically increases fitness follow-through — not because of reward, but because of the fear of loss.”

Milne et al., Annals of Internal Medicine • University of Pennsylvania Behavioral Science Lab

2×

More likely to hit your goals

Participants with financial stakes were twice as likely to complete fitness targets vs. tracking-only control groups in peer-reviewed trials.

3×

Stronger behavioral response

Loss aversion drives 3x stronger behavioral change than equivalent potential gains. Harthos puts this asymmetry to work every single day.

$30

Average challenge stake

High enough to sting, low enough to keep playing. The sweet spot that keeps users moving without reckless high-stakes pressure.

vs. The Competition

Why Harthos?

The only platform built for serious 1v1 fitness competition with real stakes.

Feature	Harthos	StepBet	DietBet
1v1 Challenges	✓	✗	✗
5 Competition Metrics	✓	Steps only	Weight only
Real-Time Leaderboards	✓	✗	✗
Anti-Cheat Engine	✓	Basic	✗
Instant Payouts	✓	7–10 days	14+ days
Group Competitions	✓ (up to 20)	✓	✓
Wearable Sync	✓	✓	✗
Platform Fee	3% (1v1)	10%	10–25%

FAQ

Common Questions.

Harthos reads directly from Apple HealthKit or Google Health Connect — the same trusted data sources your doctor and insurance provider use. We never rely on screenshots or manual input. Our anti-cheat algorithms cross-reference session timing, GPS data, and heart rate patterns to filter anomalies automatically.

No. Harthos is classified as a skill-based contest, not gambling. The outcome is determined by your actual physical effort as verified by objective wearable data — not chance. Gaming law specialists have reviewed the platform for compliance in each supported jurisdiction. We’re App Store and Play Store compliant.

Any device that syncs with Apple HealthKit (iOS) or Google Health Connect (Android). This includes Apple Watch, Garmin, Whoop, Fitbit, Samsung Galaxy Watch, Polar, and most other major fitness trackers. If your device syncs steps, distance, or health metrics to your phone, you’re ready.

When a challenge ends, winnings are settled instantly to your Harthos wallet. From there you can withdraw to your linked bank account at any time. Stripe powers all payment processing. Stripe’s payment processing fee is absorbed on deposit — you only ever pay the platform fee (3% for 1v1, 5% for groups).

1v1 challenges: 3% platform fee taken from the pot at settlement. Group challenges: 5% platform fee. Friend challenges (private, no leaderboard): no fee. Deposits: Stripe’s payment processing fee is absorbed by Harthos. Withdrawals: standard bank transfer fees may apply depending on your bank.

Beta is live now on iOS via TestFlight. Download at testflight.apple.com/join/Wr1VaqH6. Android support is coming later in 2026.

Yes. Harthos never stores your credit card or bank account numbers — Stripe handles all payment data under PCI DSS compliance. Your wallet balance and transaction history are stored on Google Cloud infrastructure with encryption at rest and in transit. We use Firebase Authentication and strict access controls to protect your account.

Now in Beta

Show Some Hart.

Beta is live on iOS. Download on TestFlight and start competing today.

Download on TestFlight →

✓

You’re on the list.

We’ll reach out before launch.

iOS only during beta — Android coming soon.

✓ Skill-based & legal

✓ Stripe-powered payouts

✓ Deposit matched for first 500

✓ Hart Platforms LLC

Fitness Is Better
With Stakes.