Tension with Intention
The fitness app that understands why people quit — and stops it before they do. Personalized AI coaching, behavioral intelligence, and real results for people who’ve tried everything else.
Most fitness apps celebrate your wins. Nobody’s watching for the moment you’re about to quit.
Most apps track what you did. We understand what you need — before you give up.
In-Tension-All wasn’t built in a boardroom. It was built in the gym, refined by real data, and shaped by the people who use it.
Started as DayOne — a simple, fast workout tracker for people intimidated by the gym.
Users showed us they needed more than tracking. They needed someone watching out for them.
We built 40+ behavioral signals that detect confusion, intimidation, and dropout risk in real time.
A behavioral intelligence platform disguised as a fitness app. Every user makes the next version smarter.
137 exercises
180+ exercise combinations with equipment variants
Basic AI suggestions
Full behavioral AI with dropout prediction
One-size onboarding
Confidence-based adaptive routing
Three steps from nervous beginner to confident gym-goer.
Our confidence-based onboarding adapts to YOUR comfort level. Nervous? You get extra guidance. Experienced? We streamline everything. No scripts — just a conversation that builds your unique profile.
Powered by Google Gemini, your AI Coach creates personalized routines based on your gym’s actual equipment, your experience, and your goals. It adapts as you grow — detecting imbalances and preventing overtraining.
Lightning-fast workout logging designed for between sets. PR detection, 3D muscle visualization, progress photos, and science-backed milestone celebrations keep you motivated at every stage.
See how In-Tension-All adapts to different users in real time. Click through the demo below.
This is a simplified preview. In the app, the AI conversation goes deeper — understanding your story, your fears, and your goals to build a truly personalized experience.
Every feature exists because real users taught us it was needed.
Not a chatbot. A coach that remembers your story from day one, detects muscle imbalances before they become injuries, and prevents overtraining with science-backed recovery logic.
AI-PoweredNervous users get hand-holding with equipment tutorials and visual guides. Experienced users skip ahead. The AI adapts its entire personality based on who you are.
Science-Backed80+ base exercises with every equipment variation, cable attachment, and angle. Can’t find a machine? Tell us, and we’ll suggest alternatives your gym does have. Plus unlimited custom exercises.
ShadowSync silhouette overlay ensures consistent pose alignment. Melt-away comparison reveals your transformation. Side-by-side baselines show real progress over time.
Privacy-FirstIn an era of AI scraping and cloud breaches, your progress photos are encrypted and stored locally. Cloud backup is optional, always encrypted, and fully under your control.
Zero-Knowledge StorageInteractive 3D body map shows exactly which muscles you’ve trained this week. Spot imbalances at a glance. See your coverage grow over time.
Multi-profile support for couples, gym buddies, or trainers. Share workout activity and progress without sharing personal data. Built for real gym partnerships.
Science-backed milestone celebrations at every critical retention point. When 80% of people quit, you get a personalized message from your AI Coach who remembers why you started.
Retention ScienceDesigned for between-set use when your heart rate is up. Tap, log, done. PR detection is automatic. Last workout comparison is always visible. Zero friction by design.
Every user interaction makes the next version smarter. This isn’t a fitness app. It’s a behavioral intelligence platform.
In the app daily
40+ behavioral signals
Every release cycle
More users stay
Using predictive dropout modeling and behavioral cohort analysis, we turn every interaction into smarter retention algorithms. Here’s what we’re watching:
“We don’t just build features. We let data tell us what to build.”
Start free. Upgrade when you’re ready for the full experience.
Also available: $39.99/year or $79.99 lifetime