Learn AI Prompting: practise prompt engineering on your phone

The one that fits the way a phone is actually used: lessons short enough to finish in a queue, practice rather than pure reading, and something to ask when you get stuck. Learn AI Prompting is built that way — more than 100 lessons of five to ten minutes, hands-on exercises and quizzes after every topic, and an AI Mentor that answers in seconds. It is free to start on iOS and Android, and no experience is assumed.

Prompt engineering is writing instructions that get reliable output from a language model such as ChatGPT, Claude or Gemini. In practice it means being specific about the task, giving the model the context and examples it needs, stating the format you want back, and revising when the first answer misses. It is less about magic phrasing than about removing ambiguity, which is why it can be taught and practised like any other skill.

Yes, though for a different reason than in the early days. Models no longer need clever incantations, but they still cannot read your mind about audience, format, constraints or what counts as a correct answer. Being able to state a task precisely, supply the right context, and check the output critically is a general working skill, and it transfers across models rather than being tied to one product.

Four habits do most of the work. Say who the answer is for and what it will be used for. Give the model the source material it needs instead of assuming it knows your situation. Ask for a specific format — a table, five bullets, a paragraph. And when the reply misses, say precisely what was wrong and ask again, rather than starting over. Adding two or three worked examples also sharpens tone and structure considerably.

No. Learn AI Prompting is aimed at complete beginners, students and career switchers, and every concept is explained in plain language starting from zero. The lessons mix short theory with hands-on practice, so you build up by doing rather than by taking notes on terminology. Advanced topics exist for later, but nothing in the early course assumes prior background.

It is free to download and free to start. The first course is free and the AI Mentor comes with a daily allowance on the free tier. Pro unlocks every course, removes ads, and makes AI Mentor use unlimited. You can work through the free course first and decide afterwards whether the rest is worth paying for.

Five to ten minutes. The lessons are deliberately sized for real life rather than lecture halls, so a single commute, lunch queue or coffee break is enough to finish one and still take the quiz at the end. There are more than 100 of them, which means progress comes from repetition of short sessions rather than from blocking out whole evenings.

Lessons load fast and keep working on flaky connections, which covers most commuting situations — patchy mobile data, a tunnel, a weak cafe network. The AI Mentor is the part that needs a live connection, since it answers your questions in the moment. If you expect to be fully offline for a while, work through lessons and exercises then, and save mentor questions for when you are back on a network.

The app is available in 22 languages, so the interface and lessons are not English-only. It is rated 4+ and runs on both iPhone and Android phones. Learn AI Prompting is part of CoddyKit, a family of coding apps that share the same lesson format, so the way one works will be familiar if you have used another.

Yes. Pass the final exam and the app issues a certificate of completion, which gives the course a clear endpoint rather than trailing off. Along the way there are quizzes and challenges after every topic, a Weekly Code Challenge against learners around the world, and streaks with progress tracking and reminders to keep you consistent between sessions.