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PRECISION APPS SHIPPED FOR REAL.

Flutter • Gemini AI • Google Cloud • Zero-Lag Native Craft

Engineering the next era of high-velocity mobile products. Explore production applications with live enterprise backends, offline-first architectures, and bespoke tactile interfaces crafted by JEM BUILDZ.

100%
Production Code
60 FPS
Silky Motion
Gemini
AI Integrated
HUNGERCAST LIVE
HungerCast Broadcast Studio
HUNGERCAST
Broadcast Studio
Tap to Zoom
Interactive Device • Tap screen to zoom high-res
★ JEM BUILDZ PRODUCTION LAB • HUNGERCAST SHIPPED TO APP STORE • AVAILUBL SCHEDULING ENGINE LIVE • FLUTTER 3.X DUAL-PLATFORM DEPLOYMENTS • ZERO DOWNTIME CLOUD RUN BACKENDS • ★ JEM BUILDZ PRODUCTION LAB • HUNGERCAST SHIPPED TO APP STORE • AVAILUBL SCHEDULING ENGINE LIVE • FLUTTER 3.X DUAL-PLATFORM DEPLOYMENTS • ZERO DOWNTIME CLOUD RUN BACKENDS
★ JEM BUILDZ PRODUCTION LAB • HUNGERCAST SHIPPED TO APP STORE • AVAILUBL SCHEDULING ENGINE LIVE • FLUTTER 3.X DUAL-PLATFORM DEPLOYMENTS • ZERO DOWNTIME CLOUD RUN BACKENDS • ★ JEM BUILDZ PRODUCTION LAB • HUNGERCAST SHIPPED TO APP STORE • AVAILUBL SCHEDULING ENGINE LIVE • FLUTTER 3.X DUAL-PLATFORM DEPLOYMENTS • ZERO DOWNTIME CLOUD RUN BACKENDS

Shipped Flagship Mobile Apps

Explore real production applications engineered by JEM BUILDZ. Every screen represents store-ready architecture, custom UI components, and integrated cloud backends.

01
HC

HungerCast

Food & Culinary Tech

The Daily Specials Broadcaster • Native iOS, Android & POS

1,400+ Kitchens
100% Margin Retention
60s Broadcast Loop
Toast POS Synced

HungerCast is an end-to-end mobile operating system built for restaurants, pop-ups, and food trucks to broadcast daily flash specials directly to social channels, local Google Maps 3-Pack, and web diner feeds in under 60 seconds without paying aggregator take-rates.

Gemini AI Food Captioning
Auto-tunes pass photos and generates high-converting captions for Instagram, Facebook & Google Maps.
RTK Curbside GPS (±0.4m)
Pins mobile food trucks with high-precision satellite telemetry and auto-locks geofenced order zones.
Toast POS & Live Inventory
Syncs batch quotas, dish counts, and flash pricing directly with commercial kitchen POS hardware.
Offline Queue Resiliency
Stores pending broadcasts locally during basement kitchen Wi-Fi flickers and auto-flushes on reconnect.
HungerCast Tech Specs
Flutter 3.x Google Maps SDK Gemini AI Vision Toast POS API Meta Graph API Firebase Cloud Messaging
Architecture: Clean DDD + Bloc State Machine
App Screens & Interface Gallery
Click any screen to zoom
Broadcast Studio
AI captioning & multi-channel sync
Curbside GPS Dispatch
Real-time truck pins & inventory
Performance Deck
Commission ROI & dish history
Line & POS Station
Kitchen-safe ergonomics & queue
02
AV

Availubl

Productivity & AI SaaS

Intelligent Scheduling Engine Built on Google Cloud & Gemini AI

Zero Double-Booking
Gemini AI Meeting Prep
2-Way Calendar Sync
Google Meet Auto-Links

Availubl is an enterprise-grade appointment booking and scheduling platform built on Flutter, Google Cloud Run, Cloud Firestore, and Gemini AI. It eliminates meeting double-booking with live FreeBusy calendar queries, automatically provisions Google Meet/Zoom rooms, and uses AI to generate pre-call briefing agendas from invitee intake notes.

Gemini AI Meeting Prep Briefs
Synthesizes invitee notes into structured pre-call agendas, discovery questions, and conversation starters.
Fatigue Guard Buffer Shields
Enforces configurable +5m, +10m, and +15m pre/post buffers so back-to-back burnout is impossible.
Quick Share QR & Single-Use VIPs
Generate instant QR codes or high-priority single-use VIP tokens for executive booking friction elimination.
Biometric & OAuth2 PKCE Vault
Sign in with Apple & Google Calendar identity with biometric FaceID / TouchID session token isolation.
Availubl Tech Specs
Flutter (iOS/Android/Web) Google Calendar API Cloud Run (FastAPI) Cloud Firestore Native Gemini 1.5 Pro RevenueCat Pro Paywalls
Architecture: Repository Pattern + Riverpod/Provider
Production UI & Dashboard Screens
Click any screen to zoom
Bookings & AI Prep
Confirmed meetings & Gemini prep
Event Types Manager
Discovery calls & link controls
Availability & Rules
Weekly schedule & buffer policies
Schedule Meeting Slot
Date picker & timezone conversion

Built Fast, Reliable & Powered by Modern Tech

We craft seamless mobile apps that look stunning, never lag, and keep your data secure—powered by the world's most trusted developer tools.

Flutter & Native

Smooth, Beautiful Apps for iPhone & Android

Your users get an ultra-fast, smooth experience whether they're on iOS or Android. Using Google's Flutter framework alongside native Swift and Kotlin, we build once with pixel-perfect design and zero stutter.

Flutter by Google Apple iOS & iPadOS Google Android 60fps Silky Touch
Gemini & Smart AI

Smart AI Features Built Right In

Give your users intelligent experiences without the complexity. We connect Google Gemini AI to handle smart search, automated photo analysis, content writing, and voice assistance that feels effortless.

Google Gemini AI Photo & OCR Scanning Smart Chat & Summaries Instant Search
Google Cloud & Firebase

Fast Cloud Sync with Offline Freedom

Apps that work instantly even when the subway Wi-Fi drops. Powered by Firebase and Google Cloud (GCP), your user data syncs in real-time across devices while staying securely backed up in the cloud.

Google Cloud (GCP) Firebase Realtime Sync Works Offline & Online Secure Cloud Backups
Answers & Technical Capabilities

Frequently Asked Questions

Direct, clear answers regarding mobile engineering architecture, delivery timelines, and partnership terms.

01 What mobile development services does JEM BUILDZ provide?

JEM BUILDZ builds and ships end-to-end mobile applications for iOS and Android. We specialize in high-performance Flutter architectures, native Swift/Kotlin bridging, zero-trust cloud backends (Firebase & GCP), and direct App Store & Google Play Store compliance and publishing.

02 What core technologies and frameworks are used?

Flutter & Dart are our primary cross-platform engine, backed by Firebase and Google Cloud Run. This enables fluid 60/120 FPS native render loops across Apple and Android hardware from a single verified codebase, cutting development time by over 40% while preserving platform-specific design fidelity.

03 What is the typical timeline and cost to ship an MVP?

A production-ready MVP typically takes 4 to 8 weeks from kick-off to TestFlight / Play Store deployment. Engagements generally start at $25,000 for focused rapid MVPs and scale up for comprehensive multi-tenant enterprise suites.

04 Who will I be working with during the build?

You work directly with the principal mobile engineer writing the code. No sales reps, junior handoffs, or agency overhead. You receive weekly sprint demos, direct Slack/email access, and complete repository ownership upon completion.

Ready to Build Your Mobile App?

Transmit your app idea or technical requirements. You’ll speak directly with me—the mobile engineer who actually builds and ships the apps—within 24 hours.

Direct Founder Partnership

No middle managers or agency markups. Clean contract agreements, transparent bi-weekly sprint deliverables, and verified TestFlight/Play Console deployments.

Available for Contract & Fractional Mobile Leadership