cer·tus · /ˈkɛr.tʊs/ · adj. — certain; settled; sure.
Trace every swing. Measure every stroke. Read every hole. Certus turns feel and guesswork into numbers you can trust.
Certus does three jobs. Each one earns its own page — because each one is the whole product to somebody.
Record on the iPhone you already own. Review on your iPad the second you stop — up to 240fps, frame by frame, drawn on, side by side.
Strokes gained in every category, benchmarked to the level you're chasing, with a plain-English read on your real leaks.
GPS previews, hole flyovers, and plays-like yardages that account for the wind and the hill you're standing on.
Hands-free capture, weather that plays golf, and everything you need to keep your rounds, notes, and clubs together.
Start and stop recording with a press on your AirPods — set up and swing without touching the phone.
WeatherKit conditions decoded into head/tail/crosswind and air density — the inputs behind your plays-like number.
Instant transfer isn't just for Mirror — opt in and clips from Swing and Practice land on your iPad too.
Share your high-frame-rate clips at their real rate — no forced slowdown, no watermark over your swing.
Snap a paper scorecard and Certus reads it in; print a clean card or a shot-by-shot tracker to take back out.
Keep rich-text notes on feels and lessons, and manage every club with real trimmed yardages and clean gaps.
Trace the swing, measure the strokes, read the hole — so you play from certainty instead of guessing. Built for iPhone and iPad.