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.
Stop guessing at your faults from feel. Record on the one camera you already own, get it on your iPad the instant you finish, and study it frame by frame until you know what's really happening.
Your iPhone is the only camera you need. Prop it up face-on or down-the-line and record at up to 120fps.
Every clip transfers the moment you stop, over a direct encrypted link between the two devices. No cables, no cloud.
Mirror your iPhone's view to the iPad in real time, so you — or a coach — can watch every swing as it happens and mark it up remotely.
Scrub to the exact frame and step through one at a time, with phase markers to jump to the top, impact, or finish.
Draw lines and angles on the swing, set two swings side by side in sync, and toggle reference-line and hand-path overlays.
The core capture. Record a full swing, and it's on your iPad the instant you stop.
An iPad as a live mirror of your iPhone's view — a coach station to watch and mark up remotely.
Groove reps with a coach that counts. On-device pose detection recognizes your positions as you work.
A comprehensive stats engine, powered by AI, turns your rounds into strokes gained across every category — then tells you, in plain language, exactly what to work on next.
Off the tee, approach, around the green, and putting — each scored against benchmark levels from bogey golfer to tour.
The engine surfaces your real leaks and writes them up in plain language — what's costing you, why, and where strokes hide.
Three connected views: find the leak, get a practice plan sized to your misses, then see how to work on it.
Track the five score-wreckers — doubles, three-putts, bogey par-5s, penalties, bogeys inside 150 — against your goals.
Trimmed average, min, and max for every club, with auto-fill so your gapping reflects real swings, not outliers.
Every round gets an AI-narrated recap that names what won and lost you strokes — penalties on the right shot.
Step to the tee like you've played the hole before. GPS previews and fly-throughs show the shape and the trouble, and plays-like distances fold in wind and elevation so the number you trust is the number that matters.
The camera glides down the fairway centerline from tee to green, so you see doglegs, elevation, and trouble before you swing.
Certus adjusts the raw yardage for wind and uphill/downhill, so you know the number the shot actually plays.
Live distance to the front, center, and back of every green, plus tap-anywhere targets to any hazard or layup.
Drop a target down the fairway and Certus snaps it to the corridor and bends it around doglegs using real fairway shapes.
Log each shot by GPS, auto-save hole by hole, and resolve the exact tee set — feeding the stats engine automatically.
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 120fps clips at their real frame 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.