Christof’s work

Projects

Lingvano

Learn Sign Language

100k to 4M+ learnersmultiple awardsnative iOS & Android appweb appinternal CMSTDDtest automationA/B, multivariaterelease automation

Photoautomat

Just like an analog photo booth

indie projectnative iOS & Android appweb landing pageUI/UX designapp store optimizationkeyword strategyrank trackingdata-driven development

BBRZ Reha Billi

Vocational Education and Rehabilitation Center

agency projectuser-centered designconcept to frontend implementationaccessibilityMVP approachmulti-audience application (staff & trainees)

Award

Expo App Awards 2025 winner badge

Expo App Award 2025

Community Choice winner

Press

How Lingvano reaches the ASL community and its advocates

apple.com

How Lingvano scales sign language education to 4 million learners with Expo

expo.dev

Native E2E Testing With Expo and Maestro in 5 steps

medium.com

From 1,200+ apps to 15 finalists

twitter.com

EAS Build and Update streamline CI/CD while ensuring reliability at scale, allowing us to focus on features.

expo.dev

Success isn't an accident - it's the result of relentless focus on quality

maestro.dev

44 GitHub stars on automated E2E testing setup for native apps

github.com

Convert Angular project to Android APK in 10 steps

medium.com

Angular zu Android APK in 10 Schritten (German version)

liechtenecker.at