cer·tus /ˈker.tʊs/ Latin, adjective. Certain, sure; settled beyond doubt.
Swing mirroring, recording and analysis, detailed strokes gained stats and a GPS caddie.
No sensors, tags, launch monitor or rangefinder. Just the iPhone you already own, plus an iPad and Apple Watch if you have them.
$99.99/year What’s included
Prop the iPhone on a stand and watch yourself live on the iPad. Every swing you record replays there seconds later. Then study it with body lines, a ghost of your address, side-by-side compare and an AI review. On Pro models, movement reads in real inches.
More on Swing →Every shot is scored with strokes gained against the level you’re chasing, from tour to a 20 handicap. Driving, approach, short game and putting add up to one number, and each one breaks down to the distance band or putt length behind it.
More on Stats →
The coach ranks your leaks by how many strokes each one costs you a round, keeps any it isn’t at least 80% sure of on a watch list, and builds a practice plan for the biggest one.
More on Coach →
Fly the hole before you tee off. Yardages account for elevation, wind and the air on the day, greens show their slope and break, and the caddie picks clubs from your own shots.
More on Course → Try the plays-like calculator →The founder’s own rounds
strokes a round to get back.
That’s what the coach found in Bradley’s rounds, measured against a +2 handicap. Most of it comes from approaches between 150 and 174 yards: 115 shots that finished 55 feet from the hole on average. It had read every round before he asked, and this is what it told him.
Your approach losses are a 150-yard-and-out problem, not a wedge problem: every band from 50 to 149 yds sits at 0.0 to −0.1 per round. From 200–224 yds only 32% of greens are hit, with proximity of 75 ft.
Your putting holds up until the first putt gets long: 20–29 ft three-putts 2% of the time, but 40–59 ft three-putts 32%. Eighteen of those 21 were lag misses, with first putts finishing 4.3 ft away on average.
The whole app: swing camera, GPS, scorecard and stats.
A free companion. A live mirror and instant replay of every swing.
Distances and scoring from your wrist. The phone stays in the bag.
Hole, score and yardages without unlocking.
I’m a serious golfer and a technology enthusiast, and for years I had three or four apps going at once trying to track and improve my game. I wanted one app with everything I needed and nothing I’d never use, without buying extra cameras or sensors. Certus grew out of that idea. It puts your swing and your scoring in one place.
I want to build Certus with a community of serious golfers who care about the details and will tell us what to make next. Join the waitlist, follow along, or write to me at info@certusgolf.com.
One membership covers what you’d otherwise piece together from a swing app, a GPS rangefinder and a stats app. No tiers, no add-ons, no in-app upsells.
About $8.33 a month. Free to download, billed through the App Store. Cancel anytime.
Join the waitlist for Feb 1Questions before you buy? Read the answers →
For iPhone, iPad and Apple Watch.
