RazFit vs Substy AI

Side-by-side comparison to help you choose the right product.

RazFit delivers personalized, equipment-free workouts in just minutes, empowering you to transform your body anywhere, anytime.

Last updated: March 18, 2026

Scale agency revenue. Automate chats, manage fans.

Visual Comparison

RazFit

RazFit screenshot

Substy AI

Substy AI screenshot

Overview

About RazFit

RazFit is an innovative fitness application designed specifically for iOS devices, created entirely with SwiftUI for both iPhone and iPad. This app offers a unique approach to fitness, providing high-intensity bodyweight workouts that range from just 1 to 10 minutes a day, making it accessible for individuals with busy lifestyles. RazFit requires no gym or equipment, allowing you to exercise anywhere, whether at home, work, or outdoors. The app is equipped with advanced AI coaching features, featuring two virtual trainers, Orion and Lyss, who assess your fitness level and customize workouts to ensure optimal results. With a gamification system that includes 32 unlockable milestones, RazFit keeps users engaged and motivated throughout their fitness journey. Designed for all fitness levels, from beginners to seasoned athletes, RazFit harnesses the latest iOS 18+ technologies to deliver a seamless and efficient experience. Start your fitness transformation today with a 3-day free trial.

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.

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