RazFit vs Substy AI
Side-by-side comparison to help you choose the right tool.
Transform your body with RazFit, the AI trainer offering personalized, equipment-free workouts in just 5 minutes a day.
Last updated: March 18, 2026
Scale agency revenue. Automate chats, manage fans.
Visual Comparison
RazFit
Substy AI
Overview
About RazFit
RazFit is an innovative native iOS fitness application meticulously crafted entirely in SwiftUI for both iPhone and iPad users. Designed to accommodate busy lifestyles, RazFit offers high-intensity bodyweight workouts that can be completed in as little as 1 to 10 minutes a day, requiring no gym or equipment at all. The app is tailored for individuals of all fitness levels, from complete beginners to advanced athletes, providing a unique opportunity to transform your body without the barriers of traditional workout environments. With AI coaching powered by two virtual trainers, Orion and Lyss, users receive personalized workout guidance that adapts to their individual fitness levels. The app also incorporates a gamification system featuring 32 unlockable milestones, ensuring users remain motivated throughout their fitness journey. RazFit leverages the latest iOS 18+ technologies, delivering a fast and seamless native experience for users. Kickstart your fitness journey today with a 3-day free trial and discover the transformative power of quick, effective workouts.
About Substy AI
Substy is the first platform to combine a full CRM and an autonomous AI chatbot in a single system built exclusively for OnlyFans and Fanvue agencies - and today it's the most widely adopted solution on the market.
The CRM is a complete agency workspace: add your chatters with custom access levels, let them chat directly from the platform, create and track tracking links (TikTok, Reddit, Telegram), classify fans automatically into Spenders, VIPs, Newbies, and Timewasters, and monitor every chatter's performance in real time - revenue, response rate, average basket.
The AI Chatbot runs 24/7 without human input. It sells PPV, handles objections, re-engages cold fans, and adapts its tone in any language - fully autonomous, not a co-pilot.
The hybrid mode is the game changer: AI handles fans below a spend threshold, human chatters take over only for VIPs. Agencies cut costs by 25% while automating 90% of messages.
Compatible with OnlyFans and Fanvue.