Daniel Berger
iOS Engineer | Big Tech to Indie Apps | YC Graduate
I'm an iOS engineer with nearly a decade building mobile products at leading tech companies. As a Y Combinator alum, I now build apps that unlock AI to solve specific problemsâfrom book recommendations to tourist navigation. My 8 apps have reached thousands of users worldwide.
App Portfolio
CPA Exam Prep
Master the CPA Exam
Comprehensive CPA exam preparation with adaptive learning, spaced repetition, and practice exams for all six sections.
Math Hero
Master High School Math
400+ lessons covering Algebra, Geometry, Precalculus, and Statistics with step-by-step solutions and adaptive practice.
CardValue Pro
Trading Card Price & Analysis
Instantly identify and value your sports cards with AI-powered recognition and professional-grade condition assessment.
Book Buddy
Book Search & Discovery
Smart book search with mood-based discovery, trending bestsellers, and personalized recommendations for every reader.
TCG Scanner
Value Any Trading Card
Scan Pokémon, Magic, Yu-Gi-Oh! and more. Get real-time pricing, condition assessment, and market insights instantly.
City Search-Navi
Travel Guide & Local Search
Explore local destinations with an interactive map. Find cafés, restaurants, museums, parks, and landmarks wherever you travel.
Blog
Coming Soon
Let's Connect
Interested in working together or just want to say hi?