A small studio in the USA
BSF Works is the home of Renood and Miss Rosie. Two calm, useful apps that help families and individuals manage modern life a little better.
01 / Who we are
BSF LLC is an independent studio in the USA. We make consumer apps for the small, daily problems modern life keeps creating: managing kids’ screen time, tracking subscriptions, splitting shared costs without the awkwardness.
Our products are built with a quiet, careful aesthetic and a deep belief that good software should feel calm to use.
02 / Our apps
Calm subscription tracking, made for sharing.
Renood helps you see every subscription you’re paying for, when each renewal hits, and split shared costs with friends or family without the spreadsheet. A two-week timeline, screenshot-and-email imports, and gentle reminders that don’t feel anxious.
Screen time, earned through learning.
Miss Rosie locks your child’s device until they finish a short, AI-personalized learning mission: letters, numbers, words, math, and patterns. Guided by Miss Rosie the explorer and Darwin the Dino. Built for ages 4 to 13, with a parent dashboard for setup, progress, and weekly insights.
03 / The company
04 / Get in touch
For press, partnerships, or general questions about our work, we’re happy to hear from you.