Two engines. Offline or Online…
you're in control.

hYYa ai is one privacy-first AI app with two engines you switch between anytime: hYYa Cloud — the online engine — connects to the world's most powerful AI models, and hYYa Vault — the local engine, coming with the native iOS, macOS, and Android apps — runs entirely on your device with no internet required. Same app, same memories; you choose the engine, every time.

They're the two engines inside one hYYa app. hYYa Vault is the local engine — it runs entirely on your device, works offline, needs no account, and is free; it ships with the native apps. hYYa Cloud is the online engine — it taps the world's most powerful AI models over the internet, on a subscription (Pro, Elite, or Ultra). Switch between them anytime; your memories and data stay with you either way.

On the web today, hYYa runs the Cloud engine, which needs an internet connection. The hYYa Vault engine — coming with the native iOS, macOS, and Android apps — runs entirely on your device with no connection needed. No Wi-Fi, no mobile data — works on a plane, in a basement, anywhere.

hYYa Cloud starts at $4.99/mo (Pro), $14.99/mo (Elite), or $39.99/mo (Ultra). The monthly Pro plan includes a 30-day FREE trial; hYYa Cloud Elite, hYYa Cloud Ultra and all annual plans are billed in full at signup with no trial (annual = 33% discount). On a trial, the card is collected at signup but you won't be charged until the trial (or any active coupon) expires; cancel anytime before to avoid the charge. The hYYa Vault engine is free when the native apps ship.

hYYa Cloud Pro ($4.99/mo) is unlimited private cloud AI with smart memory and live web search — the everyday pick for most people. hYYa Cloud Elite ($14.99/mo) is the Personal Productivity tier: advanced models (Claude Sonnet, Gemini Pro, DeepSeek, Kimi, Nemotron), AI Personas, app Connections (Gmail, Calendar, Outlook, Notion) and read-only Agents. hYYa Cloud Ultra ($39.99/mo) is the Professional Powerhouse: everything in Elite plus frontier models (Claude Opus, Grok), DataLens document chat, branded Studio exports, your own API keys (BYOK), team collaboration, and 60,000 monthly credits.

DataLens (hYYa Ultra) lets you chat with your own documents. Upload PDFs, contracts, reports, or research papers and reason across the entire set with Claude Opus's million-token context — with citations. Work solo, or with up to 10 teammates per lens.

Connections (hYYa Elite and Ultra) securely link apps like Gmail, Google Calendar, Outlook, Notion, and Google Drive so hYYa can use your real data in chat — read-only. You choose what to connect and can disconnect any app anytime from Settings. hYYa never sells your data or uses it to train AI.

AI Personas (hYYa Elite and Ultra) give the assistant a distinct personality or expert role — Life Coach, Medical Assistant and Psychologist — for sharper, on-character answers. Every Persona is included with both Elite and Ultra. (Deep legal-contract and financial analysis have dedicated DataLens add-ons on Ultra.)

Yes — Live Translate (hYYa Elite and Ultra) is a real-time voice interpreter: speak in one language and hYYa speaks it back in another, hands-free, across 14 languages — English, Arabic, French, Spanish, German, Italian, Portuguese, Turkish, Indonesian, Hindi, Urdu, Chinese, Japanese and Russian. It's part of Voice and uses your monthly voice minutes on Elite, or your credits on Ultra, at no extra charge.

Yes — hYYa Ultra supports Bring Your Own Key. Add your own Anthropic, Google, Groq, and other provider keys to use your own models and billing. Your keys are encrypted and never shared.

hYYa Cloud Ultra can be extended with the Quantity Surveyor add-on ($129.99/mo), which stacks on your subscription and works inside DataLens: it measures a real take-off straight off your construction drawings — lengths, areas and exact equipment/block counts computed from the drawing's geometry (never by eye), with wall centrelines and tender-grade results that need no calibration on a native AutoCAD DWG (a vector PDF just needs a quick two-click scale); one click exports the whole take-off to Excel/CSV, your drawing never leaves hYYa, and it also digitizes an existing schedule or Bill of Quantities table (PDF, image, or DWG/DXF) into a formula-ready Excel workbook. The add-on requires an active hYYa Cloud Ultra base, has monthly and annual pricing, and can be added or cancelled anytime from Settings. Data Logger — which frees the data trapped in your invoices, purchase orders and forms into an exact Excel workbook — is no longer a separate add-on; it's now included in the hYYa Cloud Ultra base. Tired of chatbots that only talk? Experience hYYa ai that executes.

Each hYYa coupon works on one specific tier and one billing cycle. Check your coupon for the tier (Pro, Elite, or Ultra) and whether it's monthly or annual, then choose that exact plan before checkout. If your coupon is for an annual plan, switch to Annual first — on the monthly Pro plan the 30-day trial already shows $0, which is not proof your coupon applied. At the secure Polar checkout, add your promotion code and confirm the discount appears before you finish.

You can always sign in to hYYa, even after a subscription ends — your account simply moves to the free tier. Your conversations and DataLenses are kept for 60 days, so you can pick up exactly where you left off if you reactivate, and hYYa emails you reminders during that window. After 60 days without reactivating, that data is permanently deleted. You can reactivate anytime, or delete your data sooner from Settings.

hYYa Cloud conversations are never used to train AI models and are not sold or shared. The hYYa Vault engine (coming with native apps) stores all conversations exclusively on your device — nothing sent to any server. hYYa ai is built privacy-first from the ground up.

Today, hYYa runs on the web at hyya.ai (the Cloud engine). Native apps for iOS, macOS, and Android are coming soon — they add the Vault engine (local and offline), and one hYYa Cloud subscription covers every platform when they ship.

hYYa Cloud gives you access to the world's most capable AI models — including Claude, Gemini, Grok, and DeepSeek. It also supports web search and DataLens — chat with your own uploaded documents — all from the same app.

An account is needed to use hYYa Cloud — sign in with just your email, no password required. The hYYa Vault engine (coming with native apps) won't require an account.