100DaysOfCode vs SQL Hero

100DaysOfCode is more than a coding tracker – it's your companion in building a real habit of programming. Inspired by the popular #100DaysOfCode challenge, this app is designed to keep you motivated, consistent, and connected throughout your learning journey. Start Your 100-Day Challenge Begin your personal coding journey with a structured tracker to mark each day’s progress. Daily Challenges & Learning Ideas Get fresh ideas every day — practice problems, project suggestions, and fun topics across languages. No Login, No Distractions Simple, clean interface designed to help you focus on progress, not profiles. Beginner-Friendly & Language-Agnostic Whether you're learning Python, Java, Reactjs, SQL — it’s for everyone.

SQL Hero helps you learn practical SQL in a structured, mobile-friendly way. Work through guided lessons, interactive exercises, and realistic examples designed to strengthen your SQL thinking step by step. Practice core topics such as filtering, sorting, joins, aggregation, data updates, and database fundamentals in a format that is easy to follow on your phone. SQL Hero is designed for learners who want a clear learning path, plenty of practice, and a polished experience that makes SQL more approachable, interactive, and engaging. Features include: • Guided SQL lessons with structured progression • Interactive SQL practice built for mobile • Tappable SQL tokens and mobile-friendly question interactions • Section tests and progress tracking • Optional AI-assisted help and feedback for supported learning moments • Support for both new learners and learners refreshing existing skills • Available in English and Traditional Chinese today Unlike more traditional learning platforms that focus mainly on passive reading or video-based learning, SQL Hero is designed around active phone-first practice, faster iteration, and more interactive learning support. SQL Hero offers free learning features as well as optional paid features. Some content and features, including certain AI-assisted experiences, Pro and Premium plans, hearts, subscriptions, and lifetime access, require separate in-app purchases or subscriptions. Important notes for learners: • Learning stats and progress are currently saved locally on your phone. Uninstalling the app may reset your learning stats, and switching to another phone during your study journey is not recommended at this stage. • Social sign-in with Apple and Google is available, but we still plan to improve and polish this experience further in future updates. We plan to continue expanding SQL Hero with more languages, more chapters, and more additional-question content in future releases. For support, billing, privacy, or feedback questions, contact support@mail.mgsqlhero.com. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/