Simple, honest apps
for teens and families.

Kinwell Studio is a small independent app studio. We build tools that are clear, private and genuinely useful, with no tricks and no ads.

Our apps

TallPro

A height predictor and growth plan for teens: an adult height estimate from growth research, plus daily sleep, nutrition and training habits to reach the top of your range.

Visit tallpro.app

How we build

Private by defaultWe collect only what an app needs to work, and never sell personal data.
No adsOur apps are paid for by the people who use them, not advertisers.
Grounded in researchHealth-related features are based on published studies, and we say clearly that they are estimates, not medical advice.

Contact

Questions, support or business inquiries: support@tallpro.app