Resistor AI Calculator vs Countity

Hold your smartphone over the resistor, and detects the object in real time and calculates the resistance value. Currently, only carbon film (brown) resistors with 4 lines and a margin of error of ± 5% (gold) are supported.

Countity — The pocket counter for life science labs. Stop counting by hand. Countity uses AI to give you instant counts of biological samples from a single photo — taken with the phone already in your pocket. Snap a Petri dish. Get a count in under a second. Move on with your day. Manual counting is one of the most time-consuming, error-prone tasks in modern biology. A single experiment can demand hundreds of counts. Researchers lose hours every week squinting through microscopes, clicking tally counters, or scrolling through ImageJ. Countity replaces all of that with a single tap. Whether you're tracking embryo viability, screening compound effects on larvae, or quantifying organoids in a 3D culture, Countity gets you to the number — fast. Three specialized AI models, each trained on thousands of real lab images: Zebrafish embryos — count clutches in minutes, not hours. Works on standard dishes, multiwell plates, and dense embryo populations. Zebrafish larvae — Detection across developmental stages, even in complex backgrounds. Built for screening, behavioral assays, and stock assessment. Organoids and spheroids — quantify 3D cultures from brightfield images. Designed for the size ranges that matter most in HTS and patient-derived organoid work. More models in development.