40 yard dash
After submitting my video and getting feedback I took about .2 seconds off my 40 yard dash!
Amazing app
Really helpful and can substitute as a deadbeat coach.
Thank you
This help me so much now I don’t need a coach to fix mistakes

Archived App (Last seen on 19 Mar 2026)
This is an archived listing of the app previously available on the App Store.Analyze your sprinting form with AI. Upload videos for detailed critiques, identify technique errors, and receive personalized drills to improve your speed and performance. Track your progress with quantitative data and historical analysis.
1.18
June 12, 2025
Updated onboarding flow. Bug fixes.
Unlocks AI form analysis and functionality.
FastAI is a tool designed for sprinters to analyze, track, and improve their sprinting form. It uses AI to process videos and identify technique errors, providing personalized drills and cues for improvement.
Users upload a side-view video of their top-speed sprint. The app's AI model processes key frames to analyze form, identifying issues like over-striding or poor hip flexion.
FastAI delivers personalized cues and drills targeting specific weaknesses identified in the analysis. It also provides quantitative data on joint angles and grades each analysis.
No, FastAI does not contain advertisements. The app is free to download and use, with optional in-app purchases for subscription plans.
FastAI offers a monthly subscription for $9.99 and a yearly subscription for $49.99, providing access to premium features and ongoing analysis.
FastAI is available on iPhone and iPad devices, indicated by its support for iOS platforms.
The latest version of FastAI is 1.18, and it was last updated on June 12, 2025. This suggests a relatively active development cycle.
FastAI has an age rating of 4+, making it suitable for a wide range of users interested in sports analysis.