Our Mission
ALAN exists because personalized fitness coaching has been priced out of reach for most people. A certified in-person personal trainer in the United States costs between $60 and $100 per session, which translates to thousands of dollars a year for the level of consistency that actually changes a body. The result is a fitness industry where the people who would benefit most from individualized coaching — beginners, returning lifters, busy parents, people over 40 — almost never get it.
Our mission is to close that gap with AI. ALAN is built to deliver the things that make working with a great personal trainer worthwhile — programming based on your specific goals, exercise selection matched to your equipment and ability, progression decisions grounded in evidence, and someone (or something) you can ask questions to — at a price anyone can afford. The app is free to install on both iOS and Android.
Editorial & Research Standards
ALAN's content and AI training logic are built on a foundation of peer-reviewed sports science and the published guidelines of the leading authorities in exercise and public health. We do not invent training principles; we apply ones that have been validated by decades of research and consensus.
What we follow
- The American College of Sports Medicine (ACSM) position stands on resistance training, aerobic exercise, and progression.
- The CDC Physical Activity Guidelines for Americans — at least 150 minutes of moderate or 75 minutes of vigorous activity per week, plus two strength sessions.
- The World Health Organization's global physical activity guidelines for adults, older adults, and special populations.
- Peer-reviewed research from journals including the British Journal of Sports Medicine, Medicine & Science in Sports & Exercise, and the Journal of Strength & Conditioning Research.
- Programming guidance from the National Strength and Conditioning Association (NSCA).
Every blog post on ALAN is reviewed against this evidence base before publication. Where studies conflict, we lean toward the more recent systematic review or meta-analysis. Where the science is genuinely uncertain, we say so. We do not publish anecdotes dressed up as research, before-and-after marketing photos, or "secrets the industry doesn't want you to know" — the actual industry is not secretive, and most of what works has been studied for decades.
Our editorial content is reviewed by certified personal trainers holding nationally recognized credentials, including NASM (National Academy of Sports Medicine) and ACE (American Council on Exercise) certifications. Nutrition-related content is reviewed in consultation with registered dietitians. When a topic falls outside the scope of general fitness — for example, training during pregnancy, post-injury return-to-exercise, or specific medical conditions — we direct readers to consult a licensed healthcare provider rather than offering blanket guidance.
How ALAN's AI Works
ALAN combines three layers of technology to deliver personalized AI training. Each layer is designed to do something a generic fitness app does not.
1. A structured exercise database
ALAN's exercise library contains hundreds of movements classified by muscle group, equipment requirement, difficulty, movement pattern (push, pull, squat, hinge, carry, rotation), and injury contraindications. Every entry includes a video demonstration and form cues. This is the structured knowledge layer the AI reasons over when assembling a workout.
2. A reasoning engine
When you request a workout, ALAN's AI considers your profile (goal, level, equipment, time, history) and selects exercises and parameters consistent with ACSM and NSCA programming guidelines. It balances movement patterns, manages recovery between sessions, and applies progressive overload — meaning the difficulty creeps up over time as your performance allows. This is also the layer that handles natural-language conversation: ask "can I swap the deadlift for something easier on my back?" and the AI picks a sensible substitute and explains why.
3. An adaptive feedback loop
Every workout you complete (or skip) feeds back into ALAN's understanding of your training. If you consistently finish sessions early, the AI raises the difficulty; if you log fatigue or pain, it backs off. This is the same closed-loop adjustment a thoughtful human coach would make, applied automatically and consistently — without you having to remember to mention it.
Importantly, ALAN is a coaching tool, not a medical device. It does not diagnose injuries, prescribe rehabilitation programs, or replace advice from a licensed physician, physical therapist, or registered dietitian. If you are managing a medical condition, recovering from surgery, or pregnant, please consult a qualified professional before starting any new exercise program.
Editorial Team
Content on ALAN is produced and reviewed by the ALAN Editorial Team — a cross-functional group of trainers, dietitians, AI engineers, and editors working under a shared set of evidence-based standards rather than a single personal brand.
Certified Trainers
NASM-CPT and ACE-CPT certified personal trainers review every fitness article and the AI's underlying programming logic for safety and effectiveness.
Registered Dietitians
Nutrition-adjacent topics are reviewed in consultation with registered dietitians (RD/RDN) to keep guidance aligned with current dietary science.
AI Engineers
Our engineering team builds and tunes the AI models behind ALAN's workout generation and conversational coaching, with a focus on safety and personalization.
Editorial Reviewers
Editors cross-check every article against ACSM, CDC, and WHO guidelines, and verify that every cited study is correctly summarized.
Contact
Questions, feedback, content corrections, or partnership inquiries are welcome. Email us at contact@gcltech.dev and we'll route your message to the right team. If you've spotted a factual error in any article, please include the URL and the specific claim — we take corrections seriously.
You can also explore the ALAN Fitness Blog for science-backed fitness articles, or head back to the homepage to learn more about the ALAN AI Fitness Trainer app.
Try the AI Fitness Trainer App
Free on iOS and Android. Personalized AI workouts in under a minute.
