# ExpertAgent: AI Experts — ChatGPT Claude Gemini Experts. > ChatGPT Claude Gemini Experts. (iPhone/iPad app by Umber Lab Limited.) - Source: https://appshunter.io/ios/app/expertagent-ai-experts/id6779321141 (this page in markdown: same URL + `.md`) - Developer: [Umber Lab Limited](https://appshunter.io/developer/1896706772) - Category: Productivity, Utilities - Price: Free with in-app purchases - Age rating: 4+ - Requires: iOS 26.0 · 34 MB - Languages: American English, German (Germany), Japanese, European Spanish - Released: 2026-07-11 - Data updated: 2026-08-21 - User reviews in markdown: https://appshunter.io/ios/app/expertagent-ai-experts/id6779321141/reviews.md ## What is ExpertAgent? Stop starting every AI chat from zero. ExpertAgent is a native iPhone app that helps you build reusable AI experts — then paste them into ChatGPT, Claude, Gemini, or Perplexity as Custom Instructions, a system prompt, or your first message. It is not a chatbot. It is not another prompt generator. Define role, skills, and tone once, and start every chat already in context. Whether you are tired of generic answers, re-explaining your background, or inconsistent AI tone, ExpertAgent turns a quick 2-step setup into a reusable expert you control. KEY FEATURES • Expert Builder — A guided 2-step flow: pick your role, shape skills and tone, then generate. AI crafts a ready-to-paste system prompt from your inputs. • Use in ChatGPT, Claude, or Gemini — One tap opens your expert in the AI app you already use. Copy or share the full prompt anytime. • My Experts library — Save, search, edit, and organize experts on your device. When signed in, your library syncs for backup and cross-device access. Saved experts remain available offline. • Explore — Browse offline role ideas by category to jump-start the Expert Builder. No account needed to browse. • Categories and tags — Filter by field so you can find or build the right persona fast. • Sign in with Apple or email — A secure account keeps your library backed up and synced across devices. • ExpertAgent Pro — Unlimited expert builds, Pro tones, detailed prompt length, and markdown export. BENEFITS • Get 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 preamble. • Consistent expert voice — Lock in tone so the AI stays aligned with how you want to work. • Faster workflow — Build once, use often. Explore role ideas help you start even faster. • Works with the AI tools you already use — No need to switch chat apps. WHO IS IT FOR? ExpertAgent is built for professionals, founders, creators, students, and power users who rely on ChatGPT, Claude, Gemini, or similar tools daily. If your work needs domain depth, a reusable expert delivers better results than blank chats. WHY CHOOSE EXPERTAGENT? Unlike scattered notes or one-off prompt snippets, ExpertAgent is purpose-built for reusable AI experts: structured inputs, AI-assisted generation, a personal library, and offline role inspiration in Explore. Paste into any supported chat app — you stay in control of what the AI knows about your context. PRIVACY Sign in with Apple or email OTP. Your experts sync when you are signed in. We do not use your data for cross-app tracking. See our privacy policy for details. AI DISCLAIMER ExpertAgent generates prompts for productivity and informational use. AI output in third-party chat apps may be incomplete or inaccurate. Do not rely on generated prompts or AI responses as legal, medical, financial, or other licensed professional advice. EXPERTAGENT PRO • Unlimited expert builds • Pro tones including Creative and Analytical • Detailed prompt length • Export prompts as markdown files Weekly plan includes a 3-day free trial for eligible new subscribers. Annual plan is billed upfront. Manage or cancel anytime through your Apple ID subscriptions. GET STARTED Download ExpertAgent, sign in, and build your first expert. Your activation grant lets you experience AI-powered expert building on your first build. When you are ready for more, start a Pro trial and keep every expert 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 ## Pricing and in-app purchases Base price: Free. **Subscriptions** | Subscription | Price | Period | | --- | --- | --- | | Weekly | $4.99 | per 7 days | | Yearly | $39.99 | per year | ## Version history (last 5 releases) ### 3.0.8 — 2026-08-15 ExpertAgent 3.0.8 • Cleaner expert library — one-tap Use in ChatGPT, Claude, or Gemini • Faster first run with skip intro and a simpler success screen after you build • Fuller expert prompts, Explore role previews, and refreshed Account settings ### 3.0.7 — 2026-08-08 ExpertAgent 3.0.7 • My Experts is now a launch hub — reuse and paste into ChatGPT faster • Paste-first playbooks with clearer Use in ChatGPT guidance • Refreshed UI, smoother onboarding, and Pro sync fixes ### 3.0.5 — 2026-07-27 ExpertAgent 3.0.3 • Updated Explore role ideas to start building faster • Builder and library polish • Bug fixes and performance improvements ### 3.0.3 — 2026-07-21 Web resultsNo information from the developer ### 3.0.1 — 2026-07-19 No information from the developer ## Apps similar to ExpertAgent | App | Rating | Price | Category | | --- | --- | --- | --- | | [Spacemail](https://appshunter.io/ios/app/spacemail/id6754387443) | 4.7 (95) | Free | Productivity | | [Coach.me - Goals & Habits](https://appshunter.io/ios/app/coachme-goals-and-habits/id530911645) | 3.5 (170) | Free | Productivity | | [Dumb Phone — Launcher & Themes](https://appshunter.io/ios/app/dumb-phone-launcher-and-themes/id6451376191) | 4.2 (223) | Free | Productivity | | [Tweek: Minimal Weekly Planner](https://appshunter.io/ios/app/tweek-minimal-weekly-planner/id1535438855) | 4.8 (1,240) | Free | Productivity | | [Chat AI Plus](https://appshunter.io/ios/app/chat-ai-plus/id6447444893) | 4.7 (1,726) | Free | Productivity | | [Notion Mail](https://appshunter.io/ios/app/notion-mail/id6504265936) | 2.9 (122) | Free | Productivity | ## More apps by Umber Lab Limited - [Prehearse: Tough Talk Practice](https://appshunter.io/ios/app/prehearse-tough-talk-practice/id6789076715) All apps by Umber Lab Limited: https://appshunter.io/developer/1896706772 ## Related topics [unlimited ai](https://appshunter.io/ios/topics/unlimited-ai) --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-21.*