Changelog / Version 4.0.0
4.0.0 - Your personal AI Video Coach on every rep
Total rebuild: record your workout and get detailed technique analysis powered by AI. No extra hardware. Just your phone and real feedback.
Version 4.0.0
October 23, 2025
Today is a before-and-after moment for FITIZENS. Version 4.0 isn’t just another update. It’s a full rethink of how you understand and sharpen your technique.
Imagine having a professional coach watching every rep, every movement, every detail of your form. Now you do. And everything you need is already in your pocket: your phone.
🎬 Video Coach: your personal AI trainer
The centerpiece of this release is Video Coach, a new technology that turns your camera into an expert movement analyst.
How it works:
- Record your exercise while you train (any exercise, any angle)
- Get your automatic report generated by our AI trained on sports biomechanics
- Review your technique with detailed feedback on every single rep
What’s in your analysis?
- ✅ Execution quality: rep-by-rep breakdown of your movement
- 💪 Strengths detected: what you’re already doing well and should keep doing
- 📈 Specific areas to improve: precise technical corrections to level up your performance
- 🎯 Personalized cues: practical tips to progress faster
When your set is done, you get a full summary with your overall score and technical classification.
Every rep gets its own quality score and specific feedback on your technique.
Dive into the detailed analysis of each rep to understand exactly what to adjust.
And get an overall analysis with the strengths the AI spotted and concrete next steps for your next session.
Works for every level: from beginners learning the movement to advanced athletes polishing every detail.
🎯 Expanded catalog: 500+ AI-detectable exercises
Our AI now recognizes over 500 different exercises, nearly 4x more than the previous version (we went from 130 to 500+).
That means practically any exercise you do at the gym can be analyzed precisely by Video Coach. From the classic lifts to advanced variations, FITIZENS AI is ready to read your movement and give you the sharpest technical feedback possible.
♻️ Radical simplification
FITIZENS 4.0 is cleaner, more direct, more effective. We removed the noise so you can focus on the one thing that matters: improving your technique and performance.
The new interface is built to take you from training to analysis in seconds. No unnecessary steps, no complicated menus, no wasted time.
📱 Train with what you already have: your phone
One of the biggest shifts in this release is that you can now use FITIZENS with just your phone camera. No extra hardware, no complex setup.
Open the app, record your exercise and get precise technique analysis. That simple.
More accessible. More immediate. More focused on what matters: your progress.
🚀 Why this changes everything
This isn’t an incremental update. It’s the result of rethinking from scratch what it means to train with technology.
Record. Analyze. Improve. That simple. That effective.
The technical feedback you used to only get with a personal trainer is now in the palm of your hand. Every day. Every session. Every exercise.
💡 Our vision
FITIZENS 4.0 is built on the belief that the best technology is the one that disappears. We don’t want you thinking about the app while you train. We want you training better, progressing faster, avoiding injuries and hitting your goals with confidence.
Video Coach is only the beginning of this new era.
Ready to train with your personal AI coach? Update now and turn every rep into a chance to improve.
Your technique will thank you. So will your results.
As always, your feedback is essential to keep building the future of smart training. Tell us what you think of this new version.

