App Review: 'FormFix' — AI-Powered Technique Coach for Strength Training

AI-based coaching tools promise immediate, objective feedback on exercise technique. FormFix is one of the most polished entries in this space. We evaluated its squat, deadlift, and overhead press analysis across varied phone angles and lighting conditions.

"The future of accessible coaching includes AI as a first-line feedback tool — but human oversight still matters."

What FormFix offers

• Real-time video analysis with kinematic feedback.
• Drill recommendations and progressive skill plans.
• Session logging and integration with popular training apps.

Accuracy and limitations

FormFix performed well for sagittal plane checks: bar path, knee travel, and hip hinge detection. It struggled more with frontal plane asymmetries and subtle spinal rotations when camera angles were poor. The app gives a confidence score and suggests retaking the video if confidence is low.

Use cases

• Self-coached athletes: get objective cues between coaching sessions.
• Rehab clients: monitor technique fidelity for prescribed exercises.
• Coaches: scale remote coaching with initial AI feedback then refine with human coaching.

User experience

The interface is clean. The onboarding walks users through camera placement and provides examples of good and bad technique. The free tier includes limited analyses per month; premium unlocks continuous analysis and program suggestions.

Privacy and data

FormFix stores videos encrypted and gives users control over retention. Read the TOS carefully; if you coach clients, ensure you have consent to share footage.

Bottom line

FormFix is a valuable tool for lifters who want frequent, objective feedback. It shouldn't replace qualified coaching for complex technique problems or rehab cases, but it can meaningfully accelerate learning when paired with human oversight.