Leslie Street Studio

Leslie Street Studio

Intentional software.

Independent iOS apps built slowly, carefully, and with genuine craft.

Featured Apps
Railroad! Solitaire icon

Railroad! Solitaire

The world's most mathematically rigorous solitaire. A 0.706% win rate — verified across 350 billion simulations.

Download on the App Store
CribVision icon

CribVision

Point your camera at a cribbage hand. On-device AI identifies every card and counts every point — instantly.

Download on the App Store
The Studio

Leslie Street Studio is a one-person software studio based in Upton, Massachusetts. Named after the founder's childhood street in Dorchester. Specific. Personal. Unambiguous.

Every app is built the same way: carefully considered, thoroughly tested, and shipped when it's ready. Not before.

More about the studio