How it works
Three steps for a verified measurement of your fish.
- 01Add a Proof ProductHold a Proof Ball beside the fish, or mount a Proof Bar to a net, cooler or deck.
- 02Take a photo or videoUpload it in the free Fishtechy app and AI does the rest.
- 03Get verified numbersLength, girth, weight and FSA in seconds. Tournament-ready.
Reduce fish handling.
Less time out of the water — better for the fish, and for the fishery.
Every Proof Product
Register Your Product
Register your Proof Product in the app before your first measurement. Each Ball and Bar has a unique code that links it to your account.
A QR code ships in the package with your product. Scan it from the app to register.
Proof Products
The Proof Product Lineup
Every Proof Product is a reference point; position your catch next to a Proof Product, snap a photo or a video, and the free Fishtechy app calculates the length and weight of your catch.
Proof Ball
A known dimension you can hold beside the fish. Clips to a keyring, floats, and reads from a single frame.
Proof Ball — Orange 36 mmOrange · 36 mm$35.00The original reference sphere. Drops in the net, measures anything.
Proof Ball Pro (Temp Edition) — Orange 36 mmOrange · 36 mm · Temperature Edition$60.00Bluetooth pairing, live water and air temperature with every catch, LED tournament verification.
Proof Ball — Green 53 mmGreen · 53 mm$40.00Sized for bigger fish and longer camera distances — tarpon, stripers and musky.- Proof Ball Pro (Temp Edition) — Green 53 mmGreen · 53 mm · Temperature EditionComing 2027Bluetooth and temperature logging inside the high-visibility 53 mm green ball.
Proof Bar
A fixed reference that lives on your gear — net, cooler, gunnel or deck. Mount it once and measure your catch.
Temp Proof Bar MiniNet Bar · Orange & Green · 2-pack$35.00Temporary adhesive bars for net handles. Each pack includes two bars in two colours.
Vinyl Proof Bar — Orange 41 cmOrange · 41 cm · Surface mount$35.00Marine-grade adhesive backing for boats, gunnels, kayaks and coolers. Sits on any flat surface.
Vinyl Proof Bar — Green 71 cmGreen · 71 cm · Surface mount$40.00Marine-grade adhesive backing for boats, gunnels, kayaks and coolers. Sits on any flat surface.
EVA Foam Proof Bar — Orange 41 cmOrange · 41 cm · Deck mount (6mm)$40.00Rigid decking-mount flush structure — a dedicated measuring station with tournament-grade repeatability.
EVA Foam Proof Bar — Green 71 cmGreen · 71 cm · Deck mount (6mm)$50.00Rigid decking-mount flush structure — a dedicated measuring station with tournament-grade repeatability.
How to use Proof Products
- 01Hang the ball off your fingerHold your catch and hang the ball off your finger — the ball must be on the same plane as the fish.
- 02Square up the cameraHold the camera square to the fish, less than 6 feet away, with the fish and ball fully in frame.
- 03Snap the photo or videoThe app measures length, girth, weight, and surface area instantly.