Hazel
scam-checks, for the people you love.When Mom gets a sketchy text, she forwards it to Hazel. Hazel tells her whether it's a scam — and tells you, too. No new app for her to learn.
Visit hazelchecks.com →What we're making
zROTO
know what every player is worth.Advanced fantasy baseball analysis built on z-scores tuned to your exact league — true player values, rival roster scouting, and a trade analyzer that speaks one honest scale.
Visit zroto.com →
Cruza
learn Spanish by solving.Bilingual crosswords with English clues and Spanish answers — a free puzzle every day, audio for every word, and spaced review that makes it stick. No ads, no subscription.
Tonebed
quiet tools for noisy ears.Gentle sound-masking for people living with tinnitus. Match a tone to your ring, blur it into shaped noise, and drift off to nighttime audio that fades as you sleep. Honest about what it is: relief, not a cure.
More from the studio, quietly in the workshop: Crosslingual Editions · En Circle · Petals.
Why we build
Sherar Genius is a studio, not a single app. We'd rather make a few things with care than many things in a hurry.
Every product here started with a real human moment — the worry of a scam text reaching an aging parent, the itch to know what a player is really worth before the trade deadline. We design for those moments specifically: calm, honest, and unmistakably on your side.
“Sheer genius” isn't about being clever for its own sake. It's the quiet kind — tools so well-considered they get out of your way.
Stay in the loop
Hazel and zROTO are out in the world, with more on the way. Leave your email and we'll let you know the moment something new ships — no noise, just the launches.