Luvu
Your retention-obsessed accountability buddy
About
Luvu has 500,000 users sticking to their hard habits - like fitness, reflection, & addictions, with retention that is already unprecedented in the sector. But we're just getting started. Luvu is the first app that tailors every part of your experience - notifications, copy, screens, widgets, sounds everything - uniquely for you to maximize your odds of coming back and sticking with your habit. We are unlocking a new category of ultra-personalization beyond prompts / agentic memory that is only now becoming possible with the bleeding edge of reinforcement learning using next-day retention signals. Ex-Duolingo + Ex-Tiktok + AI Research
From their website
apps.apple.com/us/app/luvu-home-fitness-workouts/id6747844405 ↗Luvu is a fitness app that portrays an emotional, game-like accountability partner to guide and track at-home workouts. It uses automated motion tracking to count reps, provides personalized progression, and delivers reward-driven motivation and customization to encourage consistency.
Luvu automatically tracks workouts using the device camera to sense movement and count reps without manual logging. It offers a variety of workout types (bodyweight, cardio, yoga, stretching, mobility), personalized progression that adapts to the user, game-like retention features (XP, streaks, badges, emotes, energy refills), and customizable coaching tones (supportive, snarky, or unhinged). Users engage in daily challenges, friendly rivalries, and milestones, and can start with a free tier and optionally upgrade to Luvu Plus for premium perks such as unlimited energy refills, streak savers, exclusive coaching voices, deeper customization, and faster progression. The app emphasizes effortless tracking, progress visibility, and habit-building through bite-sized goals and celebrations.
- Auto-tracked workouts using camera
- Support for multiple workout types (strength, cardio, yoga, mobility)
- Personalized progression and adaptive challenges
- Game-like rewards: XP, streaks, emotes, energy refills
- Emotional coaching tones (supportive, snarky, unhinged)
- Daily challenges and rituals
- Customizable vibe, intensity, and rewards
App store presence with 11K+ ratings and active user reviews; mentions of premium tier (Luvu Plus) and free trial, indicating ongoing user growth and monetization strategy.
Founders · 2
ML at Princeton, TikTok, Sentient. Published at neurips/naacl/emnlp etc. Retired speedcuber.
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Human coach for accountability + AI for personalized workouts
