Prompt engineering

A prompt engineering app built for daily practice.

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.

ChatGPTClaudeGeminiPerplexityPrompt EngineeringAI AgentsAutomationAI Tools

iOS now. Android is in development. Free to start; optional Pro upgrade is managed through Apple.

Practice over templates

Learn principles instead of copying prompt formulas you do not understand.

Feedback loop

Prompt Lab helps users improve prompts with AI-generated feedback.

Multi-tool fluency

Practice across ChatGPT, Claude, Gemini, Perplexity, and other AI workflows.

Why prompt engineering needs active practice

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.

Skills covered

  • Prompt structure and specificity.
  • Context packing and examples.
  • Output formats for briefs, tables, checklists, plans, and drafts.
  • Critiquing AI answers and identifying hallucinations.
  • Adapting prompts for different tools and use cases.

Why Iro is different from a prompt library

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.

Questions people ask

Does Iro include a prompt library?

Iro focuses on active prompt practice and guided lessons rather than only providing static templates.

Can prompt engineering help with Claude and Gemini too?

Yes. The same core skills—context, constraints, examples, and evaluation—apply across many AI tools.

Is Prompt Lab included for free?

The free tier includes starter access; Pro unlocks Prompt Lab and the full lesson library.