Picker AI
pickeraiapp.com
iPhone app that scores up to 200 photos and picks the best one to post for dating apps, Instagram, LinkedIn or headshots, with an explanation.
Chalk by Leo Rezaei
Construction calculator for iPhone that works in feet-inch-fractions and metric.
Visit Chalk ↗About Chalk
Construction calculator for iPhone that works in feet-inch-fractions and metric. Chalk is a mobile app makers product built by indie maker Leo Rezaei, launched in 2026.
- Status
- Active
- Launched
- 2026
- Category
- Mobile App Makers
- Website
- chalkcalc.com
More products by Leo Rezaei
ProSim
prosimapp.com
Mac utility that helps iOS developers work faster with the Xcode Simulator.
Workout AI
getworkoutai.com
AI fitness coach for iPhone that builds custom workout programs and adapts them to your goals.
Pupti
puptyapp.com
iPhone app for logging a puppy's potty breaks during house training.
PottyStar
pottystarapp.com
iPhone app that helps parents potty-train toddlers with tracking and rewards.
Confetto
confettoapp.com
Photo booth app for iPhone and iPad aimed at weddings and parties.
AI dating assistant for iPhone that helped improve dating-app messages; no longer on the App Store.
Web toolkit for actors with feedback on headshots and auditions and agent matching; the site is no longer available.
Chalk FAQ
What is Chalk?
Chalk is a mobile app makers product: Construction calculator for iPhone that works in feet-inch-fractions and metric.
Who made Chalk?
Chalk was made by Leo Rezaei, Founder of Lionary LLC, the iOS studio behind Picker AI, ProSim and Workout AI. It launched in 2026. Leo Rezaei has also built Picker AI, ProSim, Workout AI, Pupti.
Is Chalk still active?
Yes. As far as IndieMakerList knows, Chalk is still active and run by Leo Rezaei at chalkcalc.com.
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