Learn Cryptography vs Learn Machine Learning and AI

Learn Cryptography from scratch — no experience needed. Bite-sized Cryptography lessons, a real code editor on your phone, and an AI mentor that answers your questions in seconds. Built for complete beginners, students and career switchers. WHY LEARN Cryptography? • Cryptography is an in-demand skill — a strong addition to any resume • Learn by doing: every lesson mixes short theory with hands-on practice • Build real foundations you can use in projects, work and interviews • Start from zero — every concept is explained in plain language WHAT YOU'LL LEARN • Cryptography fundamentals — the core concepts, step by step • The essential building blocks used in real-world Cryptography work • Practical techniques you can apply right away • Common mistakes — and how to avoid them • Hands-on exercises after every topic • Advanced topics to keep growing beyond the basics EVERYTHING YOU NEED TO LEARN Cryptography • AI Mentor — stuck on a concept or an error? Ask anything and get a clear answer in seconds • 100+ bite-sized lessons (5–10 minutes each) — built for real life, not lecture halls • Real code editor — write and run Cryptography code right on your phone • Quizzes and coding challenges after every topic to lock in what you learn • Weekly Code Challenge — compete with learners around the world • Certificate of completion — pass the final exam and prove your skills • Streaks, progress tracking and smart reminders to keep you consistent • Learn on the go — lessons load fast and keep working on flaky connections • App available in 22 languages WHO IT'S FOR • Complete beginners taking their first steps • Students who want extra practice alongside classes • Career switchers building job-ready skills • Anyone curious about Cryptography Part of CoddyKit — a family of 40+ coding apps trusted by 100,000+ learners worldwide. Free to start: your first course is free, with a daily AI Mentor allowance. Pro unlocks every course, removes ads and gives you unlimited AI Mentor. Download Learn Cryptography: Encryption and write your first line of Cryptography today. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://www.coddykit.com/terms/privacy-policy

Learn Machine Learning & AI is a structured course that takes you from "what is machine learning" to understanding the algorithms behind modern artificial intelligence, in short lessons you can read on your phone. No prior AI experience required. If you can follow basic algebra and a little Python, you can follow this course. WHAT YOU WILL LEARN Machine Learning Foundations What machine learning is, how it differs from traditional programming, the machine learning workflow, training and test data, overfitting, underfitting, bias and variance, and how models are evaluated. Supervised Learning Linear regression, logistic regression, decision trees, random forests, support vector machines, k nearest neighbours and naive Bayes, each with the intuition behind it and where it is actually used. Unsupervised Learning K means clustering, hierarchical clustering, dimensionality reduction, principal component analysis and anomaly detection. Deep Learning and Neural Networks Perceptrons, activation functions, backpropagation, convolutional neural networks for images, recurrent networks and LSTMs for sequences, and an introduction to transformers. Reinforcement Learning Agents, environments, rewards, Q learning and policy based methods explained without heavy mathematics. Natural Language Processing Tokenization, embeddings, sentiment analysis, and how large language models are built on top of these ideas. Tools and Libraries Where Python, TensorFlow, Keras, scikit learn, NumPy and Pandas fit into a real machine learning workflow. Applied Machine Learning How these methods are used in healthcare, finance, recommendation systems, fraud detection, computer vision and forecasting. BUILT FOR LEARNING ON A PHONE Short lessons. Each topic is broken into sections you can finish in a few minutes, so you can make progress in the gaps in your day rather than waiting for a free evening. Plain language first, mathematics second. Every algorithm is explained in words before any notation appears, so you understand what it does before you see how it is written. Search across the whole course, so you can look up a term the moment you hit it in an article or a lecture. Bookmarks and resume, so a long topic survives being interrupted. Continuously updated as the field moves. WHO THIS APP IS FOR Students taking a machine learning, artificial intelligence or data science course who want a second explanation when the lecture did not land. Software developers moving into machine learning engineering or data science. Candidates preparing for machine learning and data science interviews, where the questions are still mostly about fundamentals. Analysts and professionals who need to understand what an AI system in their industry is actually doing. Anyone curious about how artificial intelligence works underneath the products they use every day. WHY LEARN MACHINE LEARNING NOW Machine learning has stopped being a specialist skill and become part of the baseline for technical work. Understanding how models are trained, why they fail, and what they can and cannot do is now useful in almost every technical role — and increasingly in non technical ones. This course gives you that understanding in a format you will actually finish: short lessons, clear language, no video to buffer, no account required. Open your first lesson today. Questions, corrections or a topic you would like added? Email mail@ehsanur.com — we update the app based on what learners ask for.