Alkemos vs ExRx.net
Data as of 2026-09-15 · Reviewed by Ahmed Zake
ExRx.net has been the internet's exercise reference since 1999 — a 2,200+ exercise database used by coaches, physical therapists, and kinesiology students worldwide. Alkemos is newer and smaller (868+ exercises) but ships with a modern UI, AI coach, Arabic translations, and full workout programs. This comparison helps you choose the right tool for your use case.
| Feature | Alkemos | ExRx.net |
|---|---|---|
| Exercise count | ✗868+ exercises | ✓2,200+ exercises |
| Mobile UX | ✓Modern responsive design + PWA installable | ✗Legacy 1999 design, poor on mobile |
| AI coach | ✓EVO AI — plan generation + 24/7 chat | ✗No AI (static reference) |
| Arabic translations | ✓Full Arabic + RTL for every exercise | ✗English-only |
| Workout programs | =Ready-made programs + AI-generated | =Workout templates (advanced) |
| Nutrition database | ✓8,830+ foods + AI meal planner | ✗No food database |
| Human coaching | ✓Available — $39.99/mo with a human coach | ✗Not available |
| Pricing | ✗Free tier + $14.99–$39.99/mo | ✓Free, ad-supported website + paid exercise apps |
| Kinesiology depth | ✗Basic muscle + equipment metadata | ✓Deep joint articulation + muscle architecture |
| Free tools & calculators | =8 free tools (4 calculators, water tracker, meal planner, 2 AI planners) | =Extensive free calculators (1RM, body fat, TDEE, and more) |
| Affiliate program | ✓Public program — 20% commission on subscriptions | ✗Not available |
Verdict
Use ExRx.net as a free reference if you are a coach or kinesiology student. Use Alkemos if you want exercise instruction + AI coaching + nutrition + programs in one modern, bilingual platform.
Where ExRx.net wins
ExRx.net is unmatched as a kinesiology reference. Every exercise page documents joint articulations, primary and secondary muscle actions, and the biomechanics behind the movement. For physical therapists, kinesiology students, and strength coaches who need to understand WHY an exercise works (not just HOW to do it), ExRx.net is the gold standard and will remain so for the foreseeable future.
ExRx.net is also free and ad-supported. If you only need a reference you can look up exercises on occasionally, paying nothing beats any Alkemos subscription. The 2,200+ exercise count also wins on raw volume — Alkemos cannot match it today.
Where Alkemos wins
Alkemos wins on every axis except raw exercise count and kinesiology depth. The UI is modern, mobile-first, and installable as a PWA — ExRx.net's 1999 design is painful on a phone. Every exercise on Alkemos ships with Arabic translations and RTL layout; ExRx.net is English-only.
Alkemos is also a complete training platform, not just a reference. The EVO AI coach builds you a personalized plan using exercises from the library, suggests exercise swaps based on your equipment and goals, and answers your training questions 24/7. ExRx.net has workout templates, but they are static — you do the programming yourself. Alkemos also includes a full food database, free calculators, and workout programs that ExRx.net does not offer at all.
For the average trainee (not a coach or PT), Alkemos is the better daily driver. Use ExRx.net as a free reference when you want to dig deeper into the biomechanics of a specific movement; use Alkemos for your actual training, nutrition, and progress tracking.
Try Alkemos Free
The full exercise library, food database, 8 free tools, workout programs, and limited EVO AI — no credit card required.