Forge vs Harley AI
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Forge
This AI-powered coaching assistant for personal trainers allows you to log client workouts by simply talking. It automatically transcribes exercises, sets, reps, and weights, eliminating the need for manual data entry. Clients receive instant email summaries of their sessions.
- Voice-powered session logging
- AI classification of workout data
- Session history and client management
- Automatic personal record tracking
- Email session summaries for clients
- Voice editing for corrections
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Forge is the AI-powered coaching assistant built for personal trainers. Just talk during your session — Forge listens, transcribes, and logs every exercise, set, rep, and weight automatically. No more typing. No more clipboards. No more forgetting what your client did last week. HOW IT WORKS • Hit record and coach naturally • Forge's AI separates workout data from small talk in real time • When you're done, get a structured session summary instantly • Client gets an email recap automatically FEATURES • Voice-powered session logging — just talk, Forge handles the rest • AI classification — workout instructions vs. conversation, sorted automatically • Session history — every client's full training history at your fingertips • Personal records — PRs tracked and highlighted automatically • Client roster — manage all your clients in one place • Session email summaries — clients get a professional recap after every session • Voice editing — "move that last set to incline press" and it's done • Activity feed — see all sessions across clients with email status tracking • Background review — sessions parsed while you coach, review when you're ready PRO FEATURES ($19/mo) • Unlimited sessions (free tier includes 10) • Group classes — one recording, every client logged • Full analytics — strength curves, volume trends, PR tracking • CSV & PDF export — share progress reports with clients BUILT FOR THE GYM Forge works best with AirPods or a wireless mic. Designed for noisy environments where typing isn't an option. PRIVACY FIRST Audio is processed for transcription only and never stored. Your clients' data stays yours. Terms of Service: https://trainwithforge.fit/terms Privacy Policy: https://trainwithforge.fit/privacy
Harley AI
This app assists personal trainers in managing their clients and business operations. It offers AI-powered workout creation, scheduling, payment processing, and client progress tracking. Built with input from fitness professionals, it aims to streamline a trainer's workflow and business management.
- AI Workout Builder
- Smart Scheduling and Booking
- Integrated Payments
- Client Management Dashboard
- Nutrition Tracking
- Recovery-Aware Training
- Business Analytics
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Harley AI: A Fitness Trainer's Best Friend Built by Doctors. Trained by a Fitness Pro. A personal trainer with over 100 active clients told two doctors exactly what he needed. They built it. Harley works for you. Your clients, your business, your way. We make money when trainers subscribe. That's it. We don't sell data and we don't run ads. WHAT HARLEY DOES AI Workout Builder Tell Harley what you need and it builds the workout. Exercises, sets, reps, tempo, rest periods, coaching cues. The exercise library has 2,600+ entries drawn from real sports science research, and when Harley writes a program, the reasoning traces back to actual sources. Smart Scheduling and Booking Day, week, and month views. Clients book straight from your storefront. Session credits, group classes, and waitlists are all managed in one place. You stop being a receptionist. Payments Built In Your money goes directly to your Stripe account. Accept payments for sessions, class packs, and products. Invoicing, payment history, and revenue tracking live in one dashboard. Client Management Workouts, progress, body stats, PRs, nutrition, health data. Assign programs, send messages, and manage your full roster from your phone. One screen per client, everything visible. Nutrition Tracking Clients search foods, log meals, and track macros. You set the targets and you see everything they eat. The food database is USDA FoodData Central, the same source dietitians use. Recovery-Aware Training Connect Whoop (Apple Watch and Garmin coming soon). Harley reads recovery scores and adapts workout intensity based on how recovered your client is. You push when they're ready and pull back when they're not. One-Click Migration from Trainerize Bring your clients, workouts, exercises, programs, and custom videos over in minutes. Artha: Your Business Brain Artha tracks your income, monitors your churn rate, and helps you price your services. Every trainer deserves to actually know their numbers. WHO IT'S FOR Personal trainers who run their own business. Harley was built alongside Edwin Servellon of Servellon Fitness, a working trainer who manages hundreds of clients on an iPad every day. His workflows, his pain points, and his feature requests shaped every screen. Whether you have 5 clients or 500, Harley grows with you. PRICING Starter: Free, up to 5 clients, all AI features with 100 queries per month, no credit card required. Essentials: $14.99/mo, up to 20 clients, unlimited AI. Pro: $49.99/mo, up to 75 clients, scheduling, payments, Whoop, Artha, migration. Business: $99.99/mo, unlimited clients, analytics, priority support, API access. All plans monthly. Cancel anytime. No contracts. WHAT MAKES HARLEY DIFFERENT Most fitness apps stick a chatbot on a calendar and call it AI. Harley is built differently. The exercise library, coaching cues, and safety guidelines come from curated science sources. When Harley recommends a program, you can trace exactly why it chose what it chose. Two physician co-founders. A hardworking New York trainer who shaped the product from day one. Patent-pending AI that remembers what matters and filters out noise. Your data stays yours. harley.dnai.systems Harley provides fitness and nutrition tools for personal trainers and their clients. It is not medical advice. Always consult a healthcare provider before starting any exercise or nutrition program. Artha provides business analytics and income insights, not financial, tax, or investment advice. AI-generated workouts and coaching cues draw from a curated exercise science knowledge base, and a qualified trainer should review programs before assigning them.
Screenshots
Verdict
The clearest difference is in-app purchases: Harley AI at none against Forge's 4. Harley AI also leads on update cadence (every 10 days vs every 3 weeks) and iOS requirement (15.0 vs 17.0). On price, rating, review sentiment and ratings volume there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Forge sells 4 in-app purchases, starting at $9.99 per month. Harley AI asks for nothing beyond the download.
On the App Store both sit at effectively the same score — 5.0 for Forge against 5.0 for Harley AI. Both are backed by a comparable volume of ratings — 9 and 16 respectively. Written reviews split almost evenly too, at 100% and 100% positive.
Forge ships an update every 3 weeks, Harley AI every 10 days. Both last shipped on October 31, 2026.
| Parameter | Forge | Harley AI |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (9 ratings) | 5.0 (16 ratings) |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| Number of ratings | 9 | 16 — better |
| Update frequency | Every 3 weeks | Every 10 days — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Freemium | Freemium |
| Devices | iPhone, iPad, Apple Watch | iPhone, iPad, iPod |
| Requires iOS | 17.0 | 15.0 — better |
| Further details — not scored | ||
| Size | 97 MB | 80 MB |
| Age rating | 4+ | 12+ |
| Developer | Lightbox Studios LLC | DNAi Systems Co |
Customer experience
Forge
Harley AI
In-app purchases
Forge
- Forge Coach Monthly$9.991 Month
- ForgePro (Monthly)$19.991 Month
- Forge Coach Annual$79.991 Year
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- ForgePro (Annual)$149.991 Year
Harley AI
No in-app purchases









