On-Device IntelligenceTraining deserves better thanguesswork.
Science-based programming. Privacy-first intelligence.
Built for athletes who take training seriously.
Your training intelligence stays on your device.
Strenua performs training calculations locally, with optional Firebase account sync and cloud backup. We do not sell your data or track you across apps and websites.
On-Device Engine
Workout generation and training calculations run locally using your profile and logged performance.
HealthKit Sandboxed
Data access is strictly sandboxed. We never see, store, or transmit your raw health data.
Core Training Offline
Planning and logging work without connectivity. Sign-in, backup, restore, and subscription services require a connection.
Built different.
Programming grounded in research, not randomness.
Every session is part of a periodized plan. Progression uses logged performance, equipment increments, RIR targets, shared set budgets, and readiness check-ins.
Block Programming
Structured mesocycles with accumulation, intensification, and deload phases. Training that adapts to your progression.
RIR-Based Loading
Prescriptions respond to the weight, reps, and effort you log. New exercises begin with guided calibration.
Readiness Decisions
A short pain, soreness, fatigue, and sleep check-in produces clear Ready, Caution, or Rest guidance.
What we stand for.
On-Device
Training calculations run locally on your iPhone. Optional Firebase sync and backup are available when you choose to use them.
Data Sold
Your training data is yours. We do not sell it or use it to track you across apps and websites.
Offline
Plan, log, and adapt workouts offline. Account sync, backup, restore, and subscriptions require connectivity.
Autoregulated
Every prescription adapts to your performance in real-time. Reps in reserve, progressive overload, periodized blocks.
Questions
& Answers
Everything you need to know about Strenua.
Strenua's workout engine runs on your device using your profile, available equipment, training history, and readiness check-in. Optional sign-in uses Firebase for account sync and cloud backup; core planning and logging remain available offline.
Not currently. Strenua is available for iPhone and iPad, and an Android version has not been announced.
Whatever you have access to. Strenua adapts your programming based on your available equipment profile—whether you're in a fully equipped commercial gym, a home setup with dumbbells, or training bodyweight only.
Yes. Strenua reads and writes to HealthKit, seamlessly integrating with your Apple Watch and other health apps to build a complete picture of your training load and recovery status.
Strenua combines periodized phases, equipment-aware exercise selection, logged-performance progression, RIR targets, planned set ranges, and readiness check-ins. These features provide decision support rather than medical or injury predictions.
Start training
with intelligence.
Join athletes who refuse to settle for random workouts and gamified noise.
Download on the App Store