$4.99 on App Store
Client: Approtic (In-house)
ResinCraft – Resin Calculator
Paid iPhone app that calculates the exact amount of epoxy resin and hardener needed for any mold shape and brand — fully offline.
The Problem
Resin artists consistently over- or under-poured expensive epoxy because mix ratios differ per brand and calculating volumes for irregular mold shapes by hand is error-prone.
Our Solution
Built a native iPhone app with calculators for 7 mold shapes (rectangle, disc, sphere, half-sphere, cylinder, cone, dome), pre-loaded ratios for 7+ major resin brands, Imperial/Metric toggle, adjustable safety margin, and project preset saving — all offline, no account required.
The Result
Published at $4.99 on the App Store. Serves resin jewelry makers, river-table builders, geode coaster artists, and tumbler crafters globally. Zero ads, zero tracking, zero subscriptions.
Tech stack