LeetLLM vs CodingChat AI

Master the skills needed to design, train, and deploy production-grade Artificial Intelligence and Large Language Model (LLM) systems. LeetLLM is a progressive, curriculum-driven learning platform built specifically for software developers, ML engineers, and computer science students. Unlike passive tutorials, LeetLLM focuses on active, hands-on understanding. Learn how transformer architectures function from the ground up, implement backpropagation from scratch, optimize tensor shapes in PyTorch, and master distributed LLM serving. ### Key Features: - **158 Progressive Lessons:** Walk through a structured, 14-phase roadmap covering python for AI, NumPy, linear algebra, probability, PyTorch training loops, Retrieval-Augmented Generation (RAG), and agentic workflows. - **Interactive Quizzes & Scoring:** Reinforce your understanding with active quiz challenges. The app tracks your attempts and saves your best scores. - **Fully Offline-First:** Study and read lessons, review diagrams, and test yourself anywhere. The entire curriculum and all interactive resources are fully pre-bundled inside the app. - **AI & ML Glossary:** Instant access to a rich directory of 320+ technical terms, formulas, and architectural definitions. - **Progress Syncing:** Log in securely via email to sync your read history and quiz accomplishments across devices, or use the app completely as a Guest. ### Curriculum Covered: 1. **AI Foundations:** NumPy tensor shapes, broadcasting, data structures, and probability. 2. **Machine Learning from Scratch:** Backpropagation mechanics, linear regression, gradient descent, and PyTorch training loops. 3. **Core LLM Architectures:** Transformer self-attention, tokenizers, decoding algorithms, and beam search. 4. **Production System Design:** Feature pipelines, ranking, forecasting, model monitoring, and A/B testing. 5. **Advanced Lab Builds:** Shipping document QA products, fine-tuning classifiers, deploying evaluation dashboards, and building production LLM agents. Take control of your AI engineering path. Build implementation speed, master the underlying math, and gain the credentials to deploy production-grade machine learning systems.

CodingChat AI is a private AI code assistant that runs on your iPhone. Get help with Python, Swift, SwiftUI, SQL, regex, debugging, code review, and algorithm practice without sending your source code to the cloud. Download a local model once, then work fully offline. WHY DEVELOPERS USE IT • Private by default — your code stays on-device • Offline coding help — useful on flights, trains, and bad connections • Built for real tasks — debugging, refactoring, reviewing, and explaining code • Fast local models — tuned for programming workflows WHAT YOU CAN DO • Ask for Python and Swift explanations • Debug stack traces and broken code • Review code for bugs, smells, and edge cases • Generate and explain regex patterns • Translate ideas into SQL queries • Get LeetCode-style hints without leaving the app • Paste multiple files for better coding context CODING PERSONAS • Code Reviewer • Debug Buddy • SwiftUI Expert • Python Mentor • Algorithm Coach • Regex Wizard • SQL Helper • Architecture Coach FEATURES • Fully offline after model download • Syntax highlighting for 20+ languages • Streaming responses • Memory for project context • Multi-file paste • Custom system prompts • Markdown code export LOCAL MODELS • Qwen2.5 Coder 7B • DeepSeek Coder V2 Lite • Qwen2.5 Coder 3B • Qwen2.5 Coder 1.5B PRO • Unlimited messages • All coding models • Multi-file paste • Custom prompts • Export tools • Monthly, annual, or lifetime upgrade • Remove ads PRIVACY • No accounts • No analytics • No server-side code processing Privacy: https://www.cong-le.com/privacy.html Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/