See it in action
A 90-second walkthrough from thump to verdict.
Stop gambling at the watermelon bin
A repeatable read on ripeness — pure math, no superstition.
The Seven-Cue Thump
Read off field spot, thump sound, heft, sugar webbing, sheen, vine tendril, and shape — a live ripeness gauge updates as you go.
Pick / Maybe / Pass
A deterministic engine scores sweetness, juiciness, and ripeness stage, then gives one clear call so you stop second-guessing.
Your Saved Patch
Every check is saved and ranked, with a verdict distribution and a ripeness timeline per melon. Tap any row for the full breakdown.
The Field Guide
An illustrated guide explains every cue and the common varieties so you actually learn what each sign on the rind means.
The AI upgrade that changes everything
Today Thud runs a deterministic ripeness engine on cues you read off by hand. Tomorrow — your camera, your mic, and your taste do the work.
Photo Ripeness Scan
Snap the melon and AI reads the field spot, sheen, and sugar webbing straight from the photo — no manual checklist required.
PlannedSound-Based Thump
Tap the rind near your mic and AI grades the thud's pitch to estimate hollowness and ripeness more precisely than your ear.
PlannedTaste-Profile Learning
Tell Thud whether a pick turned out sweet or bland and AI retunes the ideal ripeness window to your exact taste over time.
PlannedVariety Auto-Detect
Point the camera and AI identifies the variety, then loads the right ripeness cues and scoring weights automatically.
PlannedFollow the build
Thud is app #50 in the 100 Apps 100 Hours sprint. Watch every screen recorded and shipped — follow along on socials for daily drops, ripeness breakdowns, and early looks.
Tired of bland, mealy watermelon?
Join the waitlist and never gamble at the bin again when Thud launches.
Every melon you pick, sweet.
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