JunFit: Coaching by Erko Jun

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Everyone
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Everyone
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About this app

Erko Jun is now your coach. Every day. In your corner.

Camera-based motion tracking counts every rep through your phone. No watch needed. Just point and train.

Your AI chat coach sounds like Erko. Helps you start small on the days you don't feel like it. Brings you back after a break, without guilt.

WHAT'S INSIDE

Training
• 4 themes: HIIT, Kickboxing, Strength, Full Body
• Every workout in 3 intensity levels: light, moderate, intense
• Motion tracking on every workout (rep counting through camera)
• Quick challenges to beat Erko's score

Nutrition
• Log meals by photo, text or voice
• Personal nutrition plan with weekly menus
• Calorie tracking, no shame
• Barcode scanning for packaged products

Mindset and Wellbeing
• Audio sessions from a few minutes up to a quarter of an hour
• Reset stress, sharpen focus, build resilience
• Guided audio in Erko's tone
• Visual breathing guide on screen

Your AI Coach
• Check-ins over WhatsApp, in Erko's voice
• Helps you pick something small when motivation drops
• Reminds you on your schedule
• Welcomes you back after a break

WHY ERKO BUILT THIS

"I wanted an app that helps people the way I help myself. Show up. Do something small. Come back tomorrow. No drama."

WHAT MAKES JUNFIT DIFFERENT

Most fitness apps demand. JunFit guides.
Most fitness apps shame missed days. JunFit welcomes you back.
Most fitness apps need extra hardware. JunFit just needs your phone.

No streaks to break. No red warnings. No guilt language.

WHO IT'S FOR

For anyone who follows Erko and wants what he stands for in their own daily life. Whether you're starting fresh or coming back after time off, JunFit meets you where you are. No fight gym required.

LANGUAGES

English, Dutch, Bosnian.

SUPPORT

Questions? support@fittar.eu

LEGAL

Privacy policy: https://www.erkojun.com/privacy
Terms and conditions: https://www.erkojun.com/terms-and-conditions
Coaching by Erko Jun. Motion tracking, AI chat coach, your pace.
Updated on
Sep 10, 2026

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
  • No data shared with third parties
    Learn more about how developers declare sharing
  • No data collected
    Learn more about how developers declare collection
  • Data is encrypted in transit
  • You can request that data be deleted

What’s new

Bug fixes.