Red Rat in Hat full logo

Independent app development

Small, sharp software tools.

Red Rat in Hat builds focused apps for racing, calculation, and practical digital workflows.

PE Patsukevich Aleksandr, Armenia, app development and publishing

Featured product

RaceLineCalc

Own product In development

Calculate a racing line for any track.

Create a reference racing line from a track image, plan, or sketch. Built for karting, indoor tracks, custom tracks, and amateur racing preparation.

Web iOS Android
RaceLineCalc app home screen RaceLineCalc track editor screen RaceLineCalc profile view screen

Published products

Selective publishing for independent apps.

No public projects listed yet.

Read publishing policy

What we build

Motorsport tools

Specialized applications for racing analysis, planning, and performance.

Local-first utilities

Privacy-friendly tools that work offline and keep user data under user control.

Store-ready apps

High-quality applications prepared for major app stores.