Weight loss never had this much at stake.
Rival turns your unused CGM data into the most powerful habit change tool you've ever tried - because money on the line changes everything. Aim for a Time Above Range (TAR) of ≤10% for glucose over 110 mg/dL.
- Back your glucose targets (≤10% TAR >110 mg/dL) with a daily $20 financial stake.
- Hit your daily glucose targets or watch your investment go to others.
- Join a community where financial accountability drives lasting results.
Start Taking Action on Your CGM Data
Most people track glucose data but never do anything with it. Rival's financial incentives create the accountability you need to actually make the health changes you've been meaning to make. Our recommended target for optimal metabolic health is a Time Above Range (TAR) of ≤10% for glucose levels exceeding 110 mg/dL. This is based on expert guidance suggesting glucose should stay between 70-110 mg/dL for approximately 90% of the day for non-diabetic individuals, minimizing metabolic stress and promoting long-term wellness.
of CGM users report clearer understanding of how food affects them
Dexcom Survey, 2023
reduction in glucose spikes when users have real-time monitoring
Journal of Diabetes Science, 2022
of users felt more motivated when tracking glucose with accountability
Health Psychology Review, 2023
of CGM users report clearer understanding of how food affects them
Dexcom Survey, 2023
reduction in glucose spikes when users have real-time monitoring
Journal of Diabetes Science, 2022
of users felt more motivated when tracking glucose with accountability
Health Psychology Review, 2023
"Your CGM is collecting valuable data every minute, but are you actually doing anything with it?"
14-Day Glucose Challenge
Rival transforms your CGM data into action by creating powerful accountability with a daily financial stake. Meet your goals, keep your money, and split the pot from those who don't.
Connect Your CGM & Join the Challenge
Connect your continuous glucose monitor to Rival and join our 14-day challenge. Works with any CGM that syncs to Apple Health, turning your data into a powerful accountability tool.
Stake Money on Your Success
Put $20 per day on the line (or $100 for 'Ludicrous Mode'). During beta, there's no financial risk while you still earn rewards for meeting your goals.
Win: Keep TAR ≤10% (for glucose >110 mg/dL)
Each day you keep your Time Above Range (TAR) for glucose levels exceeding 110 mg/dL at or below 10%, you keep your stake and split the pot from those who didn't. This target aligns with expert guidance for optimal metabolic health.
Beta Note: Daily stakes are simulated but you can still earn rewards.
14-Day Challenge Leaderboard
Meet your goals, keep your money, split the pot from those who don't. During beta, earn rewards without financial risk.
Simulated visualization during beta
Why Rival Works
Rival members are 4x more likely to maintain glucose improvements compared to CGM users without financial stakes.
Powered by Financial Motivation
Money won by beta users so far:
Simulated during beta
Users with financial stakes show 4x better glucose control after 30 days compared to users without stakes
Research & Further Reading
Financial Incentives for Health Behavior Change
Academic Journal of Behavioral Medicine, 2022
Loss Aversion or Lack of Trust: Why Loss Framing Works
National Bureau of Economic Research, 2022
Public Accountability and Health Goals
Journal of Behavioral Medicine, 2021
Social Network Assessments for Health Behavior Change
NIH PubMed Central, 2022
CGM Adherence and Metabolic Health Outcomes
Diabetes Technology & Therapeutics, 2023
Effects of Digital Health on Exercise Adherence
Journal of Health Technology Assessment, 2023
"The huge benefit for me of doing the WC was that my stomach bloating completely subsided for the first time in over 10 years."
— Jane
Join the Rival Beta Program
Over the past five years, we've iterated and refined our CGM-based community challenges, and we're excited to launch a new app bringing all of the things we've learned together.
If you're part of a past cohort, thank you, and look forward to launching this new version, bringing health accountability challenges to CGMs and so much more.
No Financial Risk
During beta, participate with no financial risk while still earning rewards for meeting your glucose targets.
Free Premium Coaching
Beta users get exclusive access to personalized coaching sessions that will be a paid feature after launch.
Shape the Product
Your feedback directly influences the future of Rival. Help us build the ultimate health accountability platform.
Early Adopter Rewards
Earn incentives during beta and get exclusive early adopter perks when we officially launch. Join now to lock in founder-level benefits that won't be available later.
Beta Eligibility
Have any CGM device that integrates with Apple Health
Own an iOS device (Android support coming after beta)
Be willing to provide feedback to help improve the product
Commit to participating for at least 30 days
No credit card required to join the waitlist
Common questions
Have a question about Rival? Find answers to common questions below.