Thoughtful design, modern technology and artificial intelligence combined into solutions that make everyday life and professional workflows noticeably easier – from long-established iOS and iPadOS apps to AI-assisted developer tools for macOS.
The latest updates and announcements about our apps.
An overview of all OneTwoApps apps.
Scan, arrange and sign documents and export them as PDF
Coming soon to the App Store
Keep track of income & expenses – since 2012
Update coming soon
Find your way back – even offline
Your AI-powered writing assistant
AI-powered markdown editor
PDF scanner & OCR without subscription
Advanced insights & family sharing, ad-free
Free tutorials and demo projects on Apple development and artificial intelligence: explained in a practical way, drawn from my own experience and based on publicly available sources. AI assists with research, structure and language – all content is reviewed for accuracy. Topic selection, context and editorial responsibility are mine.
learning.christiandrapatz.deLocalization, text editing, App Store content, crash log analysis and recurring app-development chores – with optional AI integration, your own provider, and full control over your data.
Terminal CLI for builds, tests, simulator and TestFlight
Store analytics for downloads, crashes and ratings
AI-powered analysis of crash and log files
AI-powered localization for Xcode projects
Markdown editor with AI and workflow automation
AI-powered translation for text, documents & web content
AI-powered localization for App Store Connect metadata
A terminal-based CLI tool for Apple developers: builds, tests, simulator control, device management, TestFlight/App Store delivery, localization and crash analysis – without opening Xcode for every single step.
xcodexcli.comExplore the world of AtomiumGames.
Tower defense strategy game – works offline, no in-app purchases
A challenging strategy game – master the field and lead your team to victory
The sequel to Battle Alliance – deeper tactics, more intense battles
Gripping, action-packed tower defense battles full of strategy
Store analytics for Apple and Google from the management view: downloads, crashes, crash logs, error groups, ratings and chart positions – for any number of customers and apps, with a traffic-light management overview. Free, as a ready-to-run program for the Mac.
Visit the homepageApple Platform Developer · Essen, Germany
I independently build programs, apps, games and developer tools for the Apple ecosystem. My current focus is on AI-assisted tools for app development – with XCodeX and BetterLocale.
If you're interested in Apple development, my learning platform offers free, practical tutorials on Swift, iOS, macOS and AI tools.
Questions, feedback or press inquiries? Reach out directly.
support@onetwoapps.com