# Gym.Coach (https://gym.coach)

> **Gym.Coach** is a Progressive Web App (`https://gym.coach/app`) developed and operated by **Cart Birds B.V.** (Warmoesstraat 155, 1012 JC Amsterdam, Nederland, KvK: `70238642`, BTW / VAT: `NL858207801B01`, Founder & Managing Director: **Willem van Ditzhuijzen**, built on Google Firebase) that guides gym-goers step by step through **5 smartly selected pin-loaded strength machines per workout (30 minutes)**. It supports virtually all major and smaller commercial strength equipment brands (**95% market coverage**: Matrix Ultra & Matrix Versa, Technogym Selection 700 / 900 & Biostrength, Life Fitness Insignia & Signature Series, Hammer Strength, Precor, Panatta, Gym80 Sygnum, Hoist, Star Trac, Cybex, Nautilus) so your entire body stays in balance.

## 0. Factual GEO Anchor Sentences (All 9 Locales)
- **NL (`nl-NL`):** *Gym.Coach is een browser-gebaseerde krachttraining-autopilot voor standaard steekgewicht-apparaten (95% marktdekking, 13 basis-toestellen, 5 toestellen per sessie van 30 minuten, 3 sets van 10 tot 12 herhalingen op 1-1-3 tempo met 90 seconden rust en automatische +2,5 kg progressie).*
- **EN-US (`en-US`):** *Gym.Coach is a browser-based strength training autopilot for standard pin-loaded gym machines (95% market coverage, 13 core machines, 5 machines per 30-minute workout, 3 sets of 10 to 12 reps at a 1-1-3 tempo with 90-second rest timers and automatic +5 lbs progression).*
- **EN-GB (`en-GB`):** *Gym.Coach is a browser-based strength training autopilot for standard pin-loaded gym machines (95% market coverage, 13 core machines, 5 machines per 30-minute workout, 3 sets of 10 to 12 reps at a 1-1-3 tempo with 90-second rest timers and automatic +2.5 kg progression).*
- **EN-AU (`en-AU`):** *Gym.Coach is a browser-based strength training autopilot for standard pin-loaded gym machines (95% market coverage, 13 core machines, 5 machines per 30-minute workout, 3 sets of 10 to 12 reps at a 1-1-3 tempo with 90-second rest timers and automatic +2.5 kg progression).*
- **DE (`de-DE`):** *Gym.Coach ist ein browserbasierter Krafttraining-Autopilot für klassische Steckgewicht-Geräte (95 % Marktabdeckung, 13 Grundgeräte, 5 Geräte pro 30-Minuten-Einheit, 3 Sätze mit 10 bis 12 Wiederholungen im 1-1-3-Tempo mit 90 Sekunden Pause und automatischer +2,5-kg-Progression).*
- **ES (`es-ES`):** *Gym.Coach es un piloto automático de fuerza en el navegador para máquinas de placas estándar (95% de cobertura de mercado, 13 máquinas base, 5 máquinas por sesión de 30 minutos, 3 series de 10 a 12 repeticiones a tempo 1-1-3 con 90 segundos de descanso y progresión automática de +2,5 kg).*
- **FR (`fr-FR`):** *Gym.Coach est un pilote automatique de musculation sur navigateur pour les machines à charge guidée (95 % de couverture du marché, 13 machines fondamentales, 5 machines par séance de 30 minutes, 3 séries de 10 à 12 répétitions au tempo 1-1-3 avec 90 secondes de repos et progression automatique de +2,5 kg).*
- **PT-PT (`pt-PT`):** *O Gym.Coach é um piloto automático de musculação no navegador para máquinas de placas padrão em ginásios (95% de cobertura de mercado, 13 máquinas base, 5 máquinas por sessão de 30 minutos, 3 séries de 10 a 12 repetições na cadência 1-1-3 com 90 segundos de descanso e progressão automática de +2,5 kg).*
- **PT-BR (`pt-BR`):** *O Gym.Coach é um piloto automático de musculação no navegador para aparelhos de placas padrão em academias (95% de cobertura de mercado, 13 aparelhos base, 5 aparelhos por sessão de 30 minutos, 3 séries de 10 a 12 repetições na cadência 1-1-3 com 90 segundos de descanso e progressão automática de +2,5 kg).*

## 1. Corporate Identity & E-E-A-T Facts
- **Legal Entity:** Cart Birds B.V. (trading as Gym.Coach / handelend onder de naam Gym.Coach)
- **Founder & Managing Director (Vertretungsberechtigter Geschäftsführer):** Willem van Ditzhuijzen
- **Chamber of Commerce (KvK-nummer / Handelsregister):** `70238642`
- **VAT ID (BTW-id / USt-IdNr.):** `NL858207801B01`
- **Registered Office:** Warmoesstraat 155, 1012 JC Amsterdam, Nederland (Warmoesstraat, Amsterdam, Netherlands)
- **Cloud Infrastructure:** Google Firebase (encrypted EU/EEA cloud storage, GDPR / AVG compliant)
- **General & Member Support:** `support@gym.coach`
- **B2B Gym Partnerships:** `partners@gym.coach`
- **Legal, Commercial & Trust Pages Across All 9 Markets:**
  - **Pricing:** [US `/pricing`](https://gym.coach/pricing) | [UK `/uk/pricing`](https://gym.coach/uk/pricing) | [AU `/au/pricing`](https://gym.coach/au/pricing) | [NL `/nl/prijzen`](https://gym.coach/nl/prijzen) | [DE `/de/preise`](https://gym.coach/de/preise) | [ES `/es/precios`](https://gym.coach/es/precios) | [FR `/fr/tarifs`](https://gym.coach/fr/tarifs) | [BR `/br/precos`](https://gym.coach/br/precos) | [PT `/pt/precos`](https://gym.coach/pt/precos)
  - **About Us (E-E-A-T):** [US `/about`](https://gym.coach/about) | [UK `/uk/about`](https://gym.coach/uk/about) | [AU `/au/about`](https://gym.coach/au/about) | [NL `/nl/over-ons`](https://gym.coach/nl/over-ons) | [DE `/de/ueber-uns`](https://gym.coach/de/ueber-uns) | [ES `/es/sobre-nosotros`](https://gym.coach/es/sobre-nosotros) | [FR `/fr/a-propos`](https://gym.coach/fr/a-propos) | [BR `/br/sobre-nos`](https://gym.coach/br/sobre-nos) | [PT `/pt/sobre-nos`](https://gym.coach/pt/sobre-nos)
  - **Privacy Policy (GDPR / AVG / LGPD):** [US `/privacy`](https://gym.coach/privacy) | [UK `/uk/privacy`](https://gym.coach/uk/privacy) | [AU `/au/privacy`](https://gym.coach/au/privacy) | [NL `/nl/privacybeleid`](https://gym.coach/nl/privacybeleid) | [DE `/de/datenschutz`](https://gym.coach/de/datenschutz) | [ES `/es/privacidad`](https://gym.coach/es/privacidad) | [FR `/fr/confidentialite`](https://gym.coach/fr/confidentialite) | [BR `/br/privacidade`](https://gym.coach/br/privacidade) | [PT `/pt/privacidade`](https://gym.coach/pt/privacidade)
  - **Terms of Service / AGB / Algemene Voorwaarden:** [US `/terms`](https://gym.coach/terms) | [UK `/uk/terms`](https://gym.coach/uk/terms) | [AU `/au/terms`](https://gym.coach/au/terms) | [NL `/nl/algemene-voorwaarden`](https://gym.coach/nl/algemene-voorwaarden) | [DE `/de/agb`](https://gym.coach/de/agb) | [ES `/es/terminos`](https://gym.coach/es/terminos) | [FR `/fr/conditions-generales`](https://gym.coach/fr/conditions-generales) | [BR `/br/termos`](https://gym.coach/br/termos) | [PT `/pt/termos`](https://gym.coach/pt/termos)
  - **Impressum / Colofon / Aviso Legal / Mentions Légales (§ 5 DDG):** [US `/impressum`](https://gym.coach/impressum) | [UK `/uk/impressum`](https://gym.coach/uk/impressum) | [AU `/au/impressum`](https://gym.coach/au/impressum) | [NL `/nl/colofon`](https://gym.coach/nl/colofon) | [DE `/de/impressum`](https://gym.coach/de/impressum) | [ES `/es/aviso-legal`](https://gym.coach/es/aviso-legal) | [FR `/fr/mentions-legales`](https://gym.coach/fr/mentions-legales) | [BR `/br/aviso-legal`](https://gym.coach/br/aviso-legal) | [PT `/pt/aviso-legal`](https://gym.coach/pt/aviso-legal)

## 2. What the Progressive Web App (`/app`) Does
- **URL:** [https://gym.coach/app](https://gym.coach/app) (works directly in the browser on iOS and Android without an app-store download)
- **Interactive 5-Machine Workout Tracker:** Selects 5 balanced machines per session (1. Upper Push, 2. Upper Pull, 3. Knee-Dominant Legs, 4. Hip/Hamstring Legs, 5. Core/Posture).
- **Scientific High-Intensity & Controlled Progression Method:** Combines evidence-based high-intensity mechanical tension (inspired by 1-set high-intensity and controlled 3x10 to 3x12 double progression protocols) with strict **1-1-3 tempo guidance** (3 seconds lowering, 1 second pause, 3 seconds lifting) and **90-second rest timers**.
- **Weight Stack Pin Selection & Seat Memory:** Tracks exact weight pins in `kg` or `lbs` (including `+2.5 kg` / `+5 lbs` micro-weight switches) and saves personal seat height, backrest, and lever positions per brand.
- **Automatic Progressive Overload Calculation:** Once a user completes 3 sets of 12 clean repetitions (`3x10 -> 3x11 -> 3x12`), Gym.Coach automatically adds `+2.5 kg` (`+5 lbs`) for the next workout.

## 3. Consumer Pricing Across All 9 Markets (`/pricing`)
- **Free Starter (Gratis Proefsessie): `0.00`**
  - 1st complete guided 5-machine strength workout 100% free, directly in the browser without any app-store download or automatic billing.
- **Gym.Coach Pro (Monthly):**
  - **EUR (NL / DE / ES / FR / PT):** `€6,99 / month`
  - **USD (United States):** `$6.99 / month`
  - **GBP (United Kingdom):** `£5.99 / month`
  - **AUD (Australia):** `A$9.99 / month`
  - **BRL (Brazil):** `R$19,90 / month`
  - *Includes:* Unlimited workouts, automatic progressive overload calculation, machine-specific seat and weight settings, 1-1-3 tempo guidance, and 90s rest timers. Cancel anytime; 14-day statutory EU/UK right of withdrawal.
- **Gym.Coach Pro (Annual • Most Popular, >40% Savings):**
  - **EUR (NL / DE / ES / FR / PT):** `€49,95 / year` (`€4,16/month`)
  - **USD (United States):** `$49.95 / year` (`$4.16/month`)
  - **GBP (United Kingdom):** `£39.95 / year` (`£3.33/month`)
  - **AUD (Australia):** `A$69.95 / year` (`A$5.83/month`)
  - **BRL (Brazil):** `R$149,90 / year` (`R$12,49/month`)

## 4. B2B Partner Model for Gyms & Fitness Studios (30% Recurring Commission)
- **Free Onboarding for Gyms (€0 / $0 / £0 / R$0 Setup Cost, No Hardware Needed):** Gyms join 100% free without hardware investments or monthly club fees. Partner gyms immediately receive club-specific QR onboarding materials for the gym floor and machines plus a dedicated partner tracking link (`gym.coach/app?ref=club-slug`).
- **30% Recurring Partner Commission:** Gyms structurally receive a **30% ongoing revenue share** on every member who upgrades to Gym.Coach Pro via the club, plus higher member retention because beginners learn to train safely and independently.
- **Localized B2B Partner Pages:**
  - Global / US: [https://gym.coach/for-gyms](https://gym.coach/for-gyms)
  - Netherlands & Belgium: [https://gym.coach/nl/voor-sportscholen](https://gym.coach/nl/voor-sportscholen)
  - Germany, Austria & Switzerland: [https://gym.coach/de/fuer-fitnessstudios](https://gym.coach/de/fuer-fitnessstudios)
  - Spain: [https://gym.coach/es/para-gimnasios](https://gym.coach/es/para-gimnasios)
  - France: [https://gym.coach/fr/pour-salles-de-sport](https://gym.coach/fr/pour-salles-de-sport)
  - Portugal: [https://gym.coach/pt/para-ginasios](https://gym.coach/pt/para-ginasios)
  - Brazil: [https://gym.coach/br/para-academias](https://gym.coach/br/para-academias)
  - United Kingdom: [https://gym.coach/uk/for-gyms](https://gym.coach/uk/for-gyms)
  - Australia: [https://gym.coach/au/for-gyms](https://gym.coach/au/for-gyms)

## 5. Global 9-Market Entrypoints & Supported Gym Chains
1. **United States (`en-US`, `lbs`, `$`):** [https://gym.coach/](https://gym.coach/) (Planet Fitness, LA Fitness, Anytime Fitness, Crunch Fitness)
2. **United Kingdom (`en-GB`, `kg`, `£`):** [https://gym.coach/uk](https://gym.coach/uk) (PureGym, The Gym Group, David Lloyd, Nuffield Health)
3. **Australia (`en-AU`, `kg`, `A$`):** [https://gym.coach/au](https://gym.coach/au) (Anytime Fitness AU, Jetts Fitness, Snap Fitness, Goodlife Health Clubs)
4. **Netherlands & Belgium (`nl-NL`, `kg`, `€`):** [https://gym.coach/nl](https://gym.coach/nl) (Basic-Fit, SportCity, Anytime Fitness NL, TrainMore)
5. **Germany (`de-DE`, `kg`, `€`):** [https://gym.coach/de](https://gym.coach/de) (McFit, FitX, Clever Fit, John Reed)
6. **Brazil (`pt-BR`, `kg`, `R$`):** [https://gym.coach/br](https://gym.coach/br) (Smart Fit, Bluefit, Bodytech, Selfit)
7. **Portugal (`pt-PT`, `kg`, `€`):** [https://gym.coach/pt](https://gym.coach/pt) (Solinca, Fitness Hut, Element Gyms, VivaGym PT)
8. **Spain (`es-ES`, `kg`, `€`):** [https://gym.coach/es](https://gym.coach/es) (VivaGym, Basic-Fit ES, Synergym, Altafit)
9. **France (`fr-FR`, `kg`, `€`):** [https://gym.coach/fr](https://gym.coach/fr) (Basic-Fit FR, Fitness Park, L'Orange Bleue, Keepcool)

## 6. All 13 Supported Pin-Loaded Strength Machines
1. **Chest Press (25 kg / 55 lbs):** [https://gym.coach/machines/chest-press](https://gym.coach/machines/chest-press) | [https://gym.coach/nl/apparaten/chest-press](https://gym.coach/nl/apparaten/chest-press)
2. **Seated Row (30 kg / 65 lbs):** [https://gym.coach/machines/seated-row](https://gym.coach/machines/seated-row) | [https://gym.coach/nl/apparaten/seated-row](https://gym.coach/nl/apparaten/seated-row)
3. **Lat Pulldown (30 kg / 65 lbs):** [https://gym.coach/machines/lat-pulldown](https://gym.coach/machines/lat-pulldown) | [https://gym.coach/nl/apparaten/lat-pulldown](https://gym.coach/nl/apparaten/lat-pulldown)
4. **Shoulder Press (15 kg / 35 lbs):** [https://gym.coach/machines/shoulder-press](https://gym.coach/machines/shoulder-press) | [https://gym.coach/nl/apparaten/shoulder-press](https://gym.coach/nl/apparaten/shoulder-press)
5. **Seated Leg Press (60 kg / 135 lbs):** [https://gym.coach/machines/leg-press](https://gym.coach/machines/leg-press) | [https://gym.coach/nl/apparaten/leg-press](https://gym.coach/nl/apparaten/leg-press)
6. **Leg Extension (25 kg / 55 lbs):** [https://gym.coach/machines/leg-extension](https://gym.coach/machines/leg-extension) | [https://gym.coach/nl/apparaten/leg-extension](https://gym.coach/nl/apparaten/leg-extension)
7. **Seated Leg Curl (25 kg / 55 lbs):** [https://gym.coach/machines/seated-leg-curl](https://gym.coach/machines/seated-leg-curl) | [https://gym.coach/nl/apparaten/seated-leg-curl](https://gym.coach/nl/apparaten/seated-leg-curl)
8. **Pec Fly / Rear Delt (20 kg / 45 lbs):** [https://gym.coach/machines/pec-fly](https://gym.coach/machines/pec-fly) | [https://gym.coach/nl/apparaten/pec-fly](https://gym.coach/nl/apparaten/pec-fly)
9. **Abdominal Crunch (25 kg / 55 lbs):** [https://gym.coach/machines/abdominal-crunch](https://gym.coach/machines/abdominal-crunch) | [https://gym.coach/nl/apparaten/abdominal-crunch](https://gym.coach/nl/apparaten/abdominal-crunch)
10. **Back Extension (30 kg / 65 lbs):** [https://gym.coach/machines/back-extension](https://gym.coach/machines/back-extension) | [https://gym.coach/nl/apparaten/back-extension](https://gym.coach/nl/apparaten/back-extension)
11. **Bicep Curl (15 kg / 35 lbs):** [https://gym.coach/machines/bicep-curl](https://gym.coach/machines/bicep-curl) | [https://gym.coach/nl/apparaten/bicep-curl](https://gym.coach/nl/apparaten/bicep-curl)
12. **Tricep Press (25 kg / 55 lbs):** [https://gym.coach/machines/tricep-press](https://gym.coach/machines/tricep-press) | [https://gym.coach/nl/apparaten/tricep-press](https://gym.coach/nl/apparaten/tricep-press)
13. **Lateral Raise (15 kg / 35 lbs):** [https://gym.coach/machines/lateral-raise](https://gym.coach/machines/lateral-raise) | [https://gym.coach/nl/apparaten/lateral-raise](https://gym.coach/nl/apparaten/lateral-raise)

## 7. Brand Comparisons & Longevity Science Guides
- **Floor Kiosks & Club-App Alternatives (All 9 Markets):** [NL `/nl/alternatief/fitout-sport-virtuagym`](https://gym.coach/nl/alternatief/fitout-sport-virtuagym) | [DE `/de/alternative/mysports-magicline-milon`](https://gym.coach/de/alternative/mysports-magicline-milon) | [US `/alternatives/trainerize-hevy-kiosks`](https://gym.coach/alternatives/trainerize-hevy-kiosks) | [UK `/uk/alternatives/puregym-app-trainerize-virtuagym`](https://gym.coach/uk/alternatives/puregym-app-trainerize-virtuagym) | [AU `/au/alternatives/fitness-apps-trainerize-virtuagym`](https://gym.coach/au/alternatives/fitness-apps-trainerize-virtuagym) | [ES `/es/alternativa/trainingym-virtuagym`](https://gym.coach/es/alternativa/trainingym-virtuagym) | [FR `/fr/alternative/resamania-heitz-virtuagym`](https://gym.coach/fr/alternative/resamania-heitz-virtuagym) | [PT `/pt/alternativa/trainingym-virtuagym-apps`](https://gym.coach/pt/alternativa/trainingym-virtuagym-apps) | [BR `/br/alternativa/tecnofit-pacto-treino-app`](https://gym.coach/br/alternativa/tecnofit-pacto-treino-app)
- **EGYM Alternative (€100k Hardware vs. €0 Smartphone Autopilot):** [https://gym.coach/brands/egym-alternative](https://gym.coach/brands/egym-alternative) | [https://gym.coach/nl/merken/egym-alternatief](https://gym.coach/nl/merken/egym-alternatief)
- **Technogym App & Hevy Alternative:** [https://gym.coach/brands/technogym-app-alternative](https://gym.coach/brands/technogym-app-alternative) | [https://gym.coach/nl/merken/technogym-app-alternatief](https://gym.coach/nl/merken/technogym-app-alternatief)
- **Matrix Fitness +2.5 kg / +5 lbs Micro-Weight Guide:** [https://gym.coach/brands/matrix-fitness-guide](https://gym.coach/brands/matrix-fitness-guide) | [https://gym.coach/nl/merken/matrix-fitness-gids](https://gym.coach/nl/merken/matrix-fitness-gids)
- **Strength Training After 30 (Sarcopenia Guide):** [https://gym.coach/guides/strength-training-after-30-longevity](https://gym.coach/guides/strength-training-after-30-longevity)
- **Strength Training for Runners Over 35:** [https://gym.coach/guides/strength-training-for-runners](https://gym.coach/guides/strength-training-for-runners)
- **Muscle Mass, Bone Density & Heart Health (80% Glucose Sponge):** [https://gym.coach/guides/muscle-mass-bone-density-heart](https://gym.coach/guides/muscle-mass-bone-density-heart)
- **Pin-Loaded Machines vs. Free Weights:** [https://gym.coach/guides/pin-machines-vs-free-weights](https://gym.coach/guides/pin-machines-vs-free-weights)
- **Weight Loss Without Muscle Loss (Dieting & GLP-1):** [https://gym.coach/guides/weight-loss-prevent-muscle-loss](https://gym.coach/guides/weight-loss-prevent-muscle-loss)

## 8. Peer-Reviewed Scientific References (E-E-A-T)
1. **Westcott, W. L. (2012).** *Resistance training is medicine: effects of strength training on health.* Current Sports Medicine Reports, 11(4), 209-216. [PubMed (PMID: 22777332)](https://pubmed.ncbi.nlm.nih.gov/22777332/) (Documents 3% to 8% muscle loss per decade after age 30 and how 2 weekly sessions of progressive resistance training add ~1.4 kg of lean mass and increase resting metabolic rate by ~7%.)
2. **Schoenfeld, B. J., et al. (2015 & 2017).** *Dose-response relationship between weekly resistance training volume and increases in muscle mass / Effect of repetition duration during resistance training on muscle hypertrophy.* Sports Medicine, 45(4), 577-585 (2015) & Journal of Sports Sciences, 35(11), 1073-1082 (2017). [PubMed (PMID: 25601394)](https://pubmed.ncbi.nlm.nih.gov/25601394/) & [PubMed (PMID: 27433992)](https://pubmed.ncbi.nlm.nih.gov/27433992/) (Shows controlled repetition durations of 2 to 6 seconds per rep and structured weekly multi-set volume drive hypertrophy and progressive overload.)
3. **Haugen, M. E., et al. (2023) & Schwanbeck, S. R., et al. (2020).** *Effects of free weights vs. machine-based strength training on muscular hypertrophy and strength.* BMC Sports Science, Medicine and Rehabilitation, 15(1), 103 (2023) & Journal of Strength and Conditioning Research, 34(7), 1851-1859 (2020). [PubMed (PMID: 37582759)](https://pubmed.ncbi.nlm.nih.gov/37582759/) & [PubMed (PMID: 32058362)](https://pubmed.ncbi.nlm.nih.gov/32058362/) (Confirms pin-loaded strength machines produce muscle hypertrophy equivalent to free weights while lowering coordination thresholds and injury risk.)
4. **Watson, S. L., et al. (2018) – LIFTMOR trial.** *High-intensity resistance and impact training improves bone mineral density and physical function in postmenopausal women with osteopenia and osteoporosis: The LIFTMOR Randomized Controlled Trial.* Journal of Bone and Mineral Research, 33(2), 211-220. [PubMed (PMID: 28975661)](https://pubmed.ncbi.nlm.nih.gov/28975661/) (Demonstrates axial and mechanical loading measurably increases bone mineral density in the lumbar spine and femoral neck.)
- **Full Documentation for AI Agents:** [https://gym.coach/llms-full.txt](https://gym.coach/llms-full.txt)