StayAI — Launch a Branded Hotel Booking App in One Week

Three apps. One codebase. Zero hosting bills. StayAI is a premium Flutter source-code product that lets you launch a branded hotel booking and discovery platform on iPhone, Android, and the web — and start earning Booking.com affiliate commissions on day one.

Demo APK: Download (Android) | Admin preview: https://stayai-be120.web.app

Demo admin login — email: admin@stayai.com, password: 123456. Read-only feel; please don’t store real data.

What you get

Customer app — Flutter for iPhone + Android from one codebase.
Admin panel — Flutter Web dashboard for content curation, user management, push composer, and AI configuration.
☁️ Cloud backend — Firebase project with Auth, Firestore, Cloud Functions (Node 22), Storage, Remote Config, FCM, Analytics, Crashlytics, App Check.

Hotel discovery

Curated featured-hotel rails on home + map view with brand-tinted dark Google Maps style.
Hotel detail with photo gallery (Hero transition), AI review summary, “Plan trip” date picker, favorite, share, Book on Booking.com.
Favorites with user-created folders, swipe-to-delete + undo.
Destination autocomplete proxy via Cloud Functions (no client-side tokens).

AI travel intelligence

Conversational AI Travel Assistant with streaming responses, 20-message memory, and context awareness (current search, favorites, home city).
AI hotel recommendations — personalized 5-hotel suggestions ranked from your search history.
AI review summaries — pros/cons/sentiment JSON, cached 7 days per hotel.
Dual-provider failover: OpenAI (GPT-4o family) + Google Gemini (2.5 Pro / Flash), switchable from Remote Config without redeploy.
Built-in rate limits (Free 10/day · Pro 200/day) backed by per-user daily counters.

Affiliate revenue

Booking.com Affiliate Partner Program — free signup, up to 40% of Booking’s margin per completed stay.
Travelpayouts (Hotellook) — free signup, 50–70% of network commission.
Hotelbeds APITUDE support — optional, gated behind an admin toggle for buyers with a contract.
Affiliate clicks are server-only writes; admin can audit them in the dashboard.
FTC + Apple/Google compliant disclosure on first launch and in Settings → About.

Admin panel

Dashboard with KPI tiles (users, AI queries, affiliate clicks, estimated commissions) and a recent-clicks table.
Full CRUD for featured hotels (with reference price for the price-drop watcher), featured destinations, and promotions.
User management: paginated table, email search, role assignment, disable, GDPR delete.
AI console: per-feature system-prompt editor, model picker, rate-limit knobs, in-page playground.
Push composer: title, body, image, segment, deep link, schedule, with a live broadcast log.
App settings editor: currencies, languages, force-update floors, maintenance mode, Booking affiliate ID.

Notifications

Manual broadcasts via the admin push composer (immediate or scheduled).
Automatic price-drop alerts every 6h — diffs the saved-price snapshot against the hotel’s current reference price; fires FCM on ≥ 8% drops.
Automatic trip reminders at T-3, T-1, and T-0 for favorites with check-in dates.
Per-user opt-in (deals, price drops, blog, trip reminders) via Settings → Notification preferences.
FCM token registration handles APNs token race + simulator fallbacks; tap routing handles cold-start, background, and foreground.

Brand customization

One-file rebrand — every color, radius, and spacing unit reads from tokens.dart.
Launcher icons fan out to iOS + Android from one 1024×1024 source PNG via the bundled flutter_launcher_icons config.
Splash screens via flutter_native_splash with brand color + transparent-background logo.
Bundled brand-asset generator (Dart tool) emits placeholder monogram art if you don’t have artwork yet.
Web manifest, themes, and favicons rebrand alongside the apps.

Security & compliance

Production-ready Firestore rules — server-only writes for affiliate clicks; owner-only writes for favorites/searches/AI chats; admin-only writes for featured content + appSettings.
App Check ready (off by default for development; flip the flag before submission).
App Store §5.1.1 compliant in-app account deletion (with a Cloud Function fanout across owned subcollections).
COPPA 13+ self-attested age gate on email signup.
FTC affiliate disclosure modal on first launch.
Force-update gate + maintenance-mode gate that wrap the entire router.
Anonymous-account merge — when guest users upgrade into an existing credential, their favorites/searches/AI chats are migrated to the real account before the anon record is dropped.

In-app purchase (Pro)

Working demo via MockPurchaseService — flips the user’s aiPlan directly so you can show the upgrade flow without a RevenueCat account.
RevenueCat-ready — RevenueCatPurchaseService is stubbed with the exact purchases_flutter SDK calls; flip kEnableRevenueCat = true, implement the three methods, and you’re live.
Suggested pricing: $4.99/month for unlimited AI queries (recovers OpenAI cost with margin).

Tech stack

Mobile framework — Flutter 3.29+ on Dart 3.5+.
State management — Riverpod 2.5.
Routing — GoRouter 14.
Models & serialization — Freezed 2.5 + json_serializable 6.8.
Backend SDK — Firebase BoM 3.3.0.
Cloud Functions — TypeScript on Node 22.
AI providers — OpenAI + Google Gemini (dual provider with failover).
Affiliates — Booking.com Affiliate · Travelpayouts · Hotelbeds (optional).
Maps — google_maps_flutter 2.9.
Deep links — app_links 6.3 (Universal Links + App Links + custom stayai:// scheme).

What’s included

Complete Flutter source for both apps + 4 shared packages.
Cloud Functions source — 18+ callables, scheduled crons, Firestore triggers.
Firebase configuration: Firestore rules, composite indexes, Storage rules.
Brand-asset generator script.
Privacy Policy and Terms of Service markdown templates.
Deep-links setup guide (AASA + assetlinks.json).
Documentation as standalone HTML (index.html + quick-start.html).
Six months of support + lifetime updates.

⚡ Quick setup (5 steps)

melos bootstrap && melos run gen
Create a Firebase project; run flutterfire configure in apps/customer/ and apps/admin/.
Fill apps/customer/.env and functions/.env with your API keys + affiliate tokens.
firebase deploy --only firestore:rules,firestore:indexes,functions,storage:rules
flutter run -d <device> in apps/customer/; promote yourself to admin in Firestore.

Detailed walkthrough in the bundled quick-start.html.

Requirements

Flutter 3.29+ and Dart 3.5+.
Node 20 or 22 (Cloud Functions).
Firebase project on the Blaze plan (Cloud Functions need Blaze; free tier covers ~10K MAU).
Booking.com Affiliate Partner Program account (free).
Travelpayouts account (free).
OpenAI or Google AI Studio API key.
Apple Developer + Google Play Console accounts for store distribution.
(Optional) RevenueCat account for real in-app subscriptions.

⚠️ Third-party services — required for full functionality

StayAI is a Flutter source product. It does not include accounts, API keys, or hosting on any third-party platform. You will need to register for the services below — most are free, a few are paid at the provider’s tier — to unlock the corresponding features. The app gracefully degrades when a service is unconfigured (e.g. AI features disabled, push not delivered) but the listing’s full feature set requires all of them.

Firebase (Google) — required. Free for the first 50K Firestore reads/day; Cloud Functions need the Blaze pay-as-you-go plan. Typical cost at 10K MAU: under $5/month.
Booking.com Affiliate Partner Program — required for affiliate revenue. Free signup. You earn commission on completed bookings via your tracked deep links.
Travelpayouts — required for destination autocomplete. Free signup.
Apple Developer Program — required for iOS App Store distribution. $99/year, paid to Apple. Sign In with Apple is mandated by Apple if you offer Google Sign-In on iOS.
Google Play Console — required for Android distribution. One-time $25 to Google.
OpenAI API or Google Gemini API — required for AI features. Pay-per-token. Estimate: ~$0.20 per Pro user/month at gpt-4o-mini rates.
Google Maps Platform — required for the map view. Free tier handles ~28K loads/month.
Google Cloud / Firebase project — required for deployment. The Blaze plan is required for Cloud Functions; you will not be charged unless you exceed the free tier limits.
RevenueCat — optional, for real in-app subscriptions. Free up to $10K MTR. Skip if you only need the bundled mock purchase flow for a demo.
Hotelbeds APITUDE — optional. Contract required; not bundled by default.
Hosting domain — optional but recommended for Universal Links / App Links. Any HTTPS host works (Firebase Hosting is configured out of the box).

StayAI is sold as source code only. We do not provide account setup, API key procurement, App Store / Play Store review mediation, or hosting administration on your project. Six months of support is bundled for code-level questions.

Support

Email: devsnack26@gmail.com
WhatsApp: +855 967 413 911
Hours: Mon–Fri, GMT+7. Response within 48h.
Term: 6 months from purchase per CodeCanyon standard. Lifetime updates regardless of support window.

Changelog

v1.0.0+1 — initial release. Customer app (auth, home, search, hotel detail, favorites, AI assistant, paywall, settings, account deletion). Admin panel (dashboard, content CRUD, user management, AI console, push composer, app settings). Backend (18+ Cloud Functions, scheduled crons, Firestore rules + indexes). Submission gates (force-update, maintenance, COPPA, FTC disclosure, GDPR delete). RevenueCat-ready IAP. iPhone-only iOS target.

Built on the latest stable Flutter and Firebase SDKs. Engineered to pass App Store and Play Store review on the first submission. Clean architecture, idiomatic Riverpod, zero hosting cost — ready to rebrand and ship.

StayAI — AI Hotel Booking Flutter App with Firebase Backend & Admin Panel