Practice over templates
Learn principles instead of copying prompt formulas you do not understand.
Prompt engineering
Prompt engineering is a skill you build by doing. Iro gives you short exercises, Prompt Lab feedback, and realistic AI tasks so better prompting becomes a habit.
iOS now. Android is in development. Free to start; optional Pro upgrade is managed through Apple.
Learn principles instead of copying prompt formulas you do not understand.
Prompt Lab helps users improve prompts with AI-generated feedback.
Practice across ChatGPT, Claude, Gemini, Perplexity, and other AI workflows.
Prompt engineering is not just writing a clever sentence. It is the process of turning an intention into instructions an AI system can follow, then evaluating whether the result is accurate, useful, and safe enough for the task. That requires repetition.
Iro breaks the skill into small decisions: define the goal, provide context, choose constraints, request a useful format, ask for critique, and verify the output. The app reinforces those decisions through exercises, XP, and daily challenges.
A prompt library can give you starting points, but it cannot build judgment by itself. Iro is designed to make users practice the thinking behind the prompt: what information matters, what the model may misunderstand, and how to improve the next attempt.
The in-app prompt library is part of Iro Pro. Iro leads with active prompt practice and guided lessons rather than only providing static templates, and there is a free prompt library on this site as well.
Yes. The same core skills, context, constraints, examples and evaluation, apply across many AI tools.
Prompt Lab is part of Iro Pro. The free tier gives you every learning path with one full lesson a day, plus the Daily Challenge, weekly AI news and a free taste of Ask Iro.