AI Prompts: Expert Builder

Stop starting every AI chat from zero.

AI Prompts helps you build a reusable AI expert once — then paste it straight into ChatGPT, Claude, Gemini, or Perplexity as Custom Instructions, a system prompt, or your first message. It's not a static list of prompts and not a chatbot. Define a role, its skills, and its tone once in a guided 2-step builder, and every new chat starts already in context.

Tired of re-explaining your background, getting generic answers, or an AI that changes its tone every session? Turn a 2-minute setup into a reusable expert you fully control — using the AI apps you already have.

KEY FEATURES

• Expert Builder — A guided 2-step flow: pick a role, shape its skills and tone, generate. AI turns your inputs into a ready-to-paste system prompt.

• Works with ChatGPT, Claude, Gemini & Perplexity — One tap opens your prompt in the AI app you already use. Copy or share it anytime. (Compatible via copy/paste and Custom Instructions — not affiliated with OpenAI, Anthropic, Google, or Perplexity AI.)

• My Experts library — Save, search, edit, and organize every prompt on your device. Sign in and it syncs across devices. Saved prompts stay available offline.

• Explore — Browse offline role ideas by category to jump-start the builder. No account needed to browse.

• Categories & tags — Filter by field so you find or build the right persona fast.

• Sign in with Apple or email — A secure account keeps your library backed up and synced.

• Pro — Unlimited builds, Pro tones, and markdown export.

BENEFITS

• Specific answers instead of generic tips — your prompt encodes real role, experience, and domain context.
• Never repeat your background — paste once per chat, not every session.
• A consistent voice — lock tone so the AI stays aligned with how you actually work.
• Faster workflow — build once, reuse often; Explore gets you started even faster.
• Use the AI tools you already pay for — no new chat app to switch to.

WHO IS IT FOR?

Built for professionals, founders, creators, students, and anyone who relies on ChatGPT, Claude, Gemini, or Perplexity daily. If your work needs real domain depth, a reusable expert beats a blank chat every time.

WHY THIS APP?

Unlike scattered notes or one-off prompt snippets you'll never find again, this app is purpose-built for reusable AI experts: structured inputs, AI-assisted generation, a searchable personal library, and offline role ideas in Explore. Paste into any supported chat app — you stay in control of what the AI knows about you.

PRIVACY

Sign in with Apple or email OTP. Your library syncs only when you're signed in. We do not use your data for cross-app tracking. See our privacy policy for details.

AI DISCLAIMER

This app generates prompts for productivity and informational use. AI responses in third-party chat apps may be incomplete or inaccurate. Don't rely on generated prompts or AI output as legal, medical, financial, or other licensed professional advice. This app is an independent product and is not affiliated with, endorsed by, or sponsored by OpenAI, Anthropic, Google, or Perplexity AI. All product names are trademarks of their respective owners.

PRO

• Unlimited prompt builds
• Pro tones, including Creative and Analytical
• Longer, more detailed prompts
• Export prompts as markdown files

Weekly plan includes a 3-day free trial for eligible new subscribers. Annual plan billed upfront. Manage or cancel anytime in your Apple ID subscription settings.

GET STARTED

Download the app and build your first expert. Your activation grant includes 10 free AI expert creations on this device. When you want more, start a Pro trial and keep every prompt at your fingertips.

Stop re-explaining. Start with an expert.

Terms of Use (EULA): https://umberlab.com/expertagent/terms
Privacy Policy: https://umberlab.com/expertagent/privacy