User Manual

01

Setup

Unlocking the app

PutterForce opens to an unlock screen. There are two ways to unlock.

• Putter.One owners — enter the redemption code included with your putter. Enter it in the code field on the unlock screen and tap Redeem. The code is validated once and the app unlocks permanently on that device.
• Purchase — tap the purchase button for a one-time App Store purchase. No subscription. Tap Restore purchase at any time to recover a previous purchase on the same Apple ID.

First launch

After unlocking, PutterForce plays a short intro video — tap anywhere to skip. A three-screen onboarding sequence introduces the app. Returning users land directly on the last active tab.

Four tabs

Read, Results, Training and Extras. Persistent tab bar at the bottom. The typical workflow moves left to right — scan on Read, review on Results, train on Training.

02

The Read

The Read tab maps the putting surface using LiDAR depth capture and calculates slope, break, distance and PutterForce from the resulting geometry.

Before you scan

The live camera activates immediately on opening the tab. A rangefinder reticle appears — frame the flag to establish the scan axis. A roll leveller at the bottom of the screen shows device tilt: green within 2 degrees of level, gold within 12, red beyond. Start from a level position.

Tap Scan Green to begin.

Scanning

Walk slowly from your ball toward the hole. The device builds a surface mesh as it moves. A live elevation heatmap overlays the wireframe — colour-ramped from low to high — showing scan coverage in real time. Continue walking until the mesh covers the full putt line.

Tap Done Scanning when coverage is sufficient.

Scan result — three views

• Overhead heatmap — the primary view. Shows the full elevation model of the green from above. The PutterForce value, distance, slope and break direction appear in the header. Tap anywhere on the map to reposition the hole marker — the calculation updates in real time.
• Captured — the camera frame at the moment scanning completed. A reference image of the actual surface.
• Profile — an elevation cross-section along the putt line, from ball to hole. Makes uphill, downhill and compound gradients visible as a continuous curve.

Scan data — distance and slope — writes automatically to the Results and Training tabs.

03

The Stroke

Results and Training work together. Results presents the PutterForce calculation. Training makes it physical.

Results tab

The PutterForce value from the most recent scan appears as the hero display. Distance and slope are shown as data cards below it. Adjust green speed using the four Stimp presets — Slow (8), Med (10), Fast (12), Tourn (14) — and the PutterForce value updates in real time.

The Training card at the bottom shows Your Tempo — the BPM derived from the current PutterForce value — and sends you directly to Training.

Training tab

The target BPM from Results is the operating frequency of the metronome. The goal is a 2:1 backswing-to-follow-through ratio at that frequency.

Feel mode

Runs the metronome at target BPM with haptic pulse and Newton's Cradle animation. Each collision coincides with one haptic beat. The cradle swing arc scales to the PutterForce value — wider arc for longer putts. Tap Go to start.

Measure mode

Uses the device motion sensors at 100Hz to capture your actual stroke. Results display after the stroke: actual BPM, backswing-to-follow-through ratio and tempo match percentage against target. If no stroke is detected within 8 seconds, a manual log option appears.

Pace selector

Die at Hole or Firm Pace. Firm Pace adjusts the force output by 15% for a ball intended to reach the back of the cup. The setting persists across all tabs.

Session logging

Log each putt as Made or Missed. A running tally and colour-coded dot trail track session performance. Sessions warn at 25 minutes and auto-save at 30. Tap Clear to end the session and commit it to History.

04

The Library

The Library is in the Extras tab. Three sections: technique videos, ebooks, and Pocket Golf.

Technique videos

Drop Bear Golf putting instruction. Videos open in a full-screen landscape player within the app. Tap the X in the top corner to return to the Library.

Ebooks

Curated reading on the putting stroke, green reading and the physics of distance control. Tap any title to open it.

Pocket Golf

The Drop Bear Golf Pocket Golf game. Tap Play to launch it in the browser.

Full User Manual

A link to this manual appears at the bottom of the Library. Tap Full User Manual to open it. A downloadable PDF is also available from the header of this page.

05

Troubleshooting

The Read tab shows a device compatibility message

LiDAR green scanning requires iPhone 12 Pro or later. On devices without a LiDAR scanner, the Read tab is unavailable. Results, Training and Extras work on any iPhone running iOS 17 or later.

The scan is not building or is building slowly

Walk slowly — faster movement reduces mesh density. Keep the device within 12 degrees of level (the leveller turns red beyond this). Ensure you are in adequate light. Wet or reflective green surfaces may reduce LiDAR accuracy. For longer putts, scan from the midpoint rather than the ball position.

Redemption code says "already redeemed"

Each redemption code unlocks one device on first use. If you have replaced your iPhone or reinstalled the app, the unlock state may have been lost. Contact support with your Putter.One order number — we can reset the code or issue a replacement.

I purchased the app but lost access after reinstalling

Open the app. On the unlock screen, tap Restore purchase. Make sure you are signed in to the App Store with the same Apple ID used for the original purchase. Your purchase is tied to your Apple ID and will restore without charge.

The metronome haptic is not firing

Confirm Silent Mode is off — the mute switch on the left side of the iPhone disables haptics in some iOS configurations. Also confirm that Settings > Sound and Haptics has System Haptics enabled.