On-Demand App Development Company

End-to-end food ordering apps for restaurants, QSRs, cafes, and food delivery operators. Customer-facing web and mobile ordering built on React Native with real-time menu availability, items sold out in the POS mark as unavailable in the app within seconds via WebSocket push rather than the customer ordering an item that can't be fulfilled. Menu management with modifier groups and nested options (size, add-ons, special instructions), item-level availability by time window (breakfast items hidden after 11am), and category ordering for the merchandising your team wants. Kitchen Display System (KDS) integration for order routing to the right prep station. Multi-platform order consolidation for operators managing orders across Grab, GoFood, and direct channels in a single dashboard, reducing the 3-4 tablet juggling that slows service and causes missed orders. Real-time order tracking with state-machine driven status updates (received, preparing, ready, picked up). We've shipped a SaaS food ordering platform that drove 10,000+ orders for restaurant operators and a B2B multi-platform management tool that 3x'd operator revenue in the first month.

On-demand transport platforms with the full driver-passenger-dispatcher triangle built as one integrated system. Driver proximity matching using geohashing (H3 or GeoHash) to find nearby available drivers without scanning the entire active driver set at every matching event. Google Maps Platform Directions API for route calculation with real-time traffic; Distance Matrix API for ETA estimation to the passenger and estimated arrival at destination. Live GPS tracking at configurable intervals (every 5 seconds in active trip, every 30 seconds idle) with WebSocket push to the passenger app, no polling required. Dynamic surge pricing: a multiplier applied when active booking requests exceed available drivers in a geofenced zone by a configurable threshold. Driver acceptance/rejection flow with timeout-based auto-reassignment to the next nearest driver when no response within 15 seconds. Driver earnings dashboard with trip history, daily/weekly totals, and payout status. Rating system with bilateral reviews (driver rates passenger, passenger rates driver) post-trip. Stripe Connect Express accounts for driver payout with configurable payout schedule.

Platforms connecting customers with home service providers, cleaning, plumbing, electrical, repairs, and professional services, where the quality of the booking experience is what earns the trust that drives repeat use. Provider profiles with service category, service area geofencing (postcode or radius), availability calendar management with buffer time between bookings, and tiered service packages with transparent pricing. Booking flow: category selection, address entry with service area validation before showing available providers, time slot selection against the provider's real-time availability, and upfront price calculation based on scope. Recurring booking for services like weekly cleaning, automated scheduling and reminders without the customer re-booking manually each time. Real-time job dispatch to the provider's app with accept/decline and 15-second timeout reassignment. In-app chat between customer and provider after booking confirmation, with file attachment for photos of the job scope. Background check status indicator on provider profiles, integrated with your background check provider's API to display verification status. Two-sided reviews post-completion with dispute resolution workflow.

On-demand tools for B2B operators where the complexity is account-based rather than individual-consumer-based. Bulk ordering with CSV import and line-item quantity management for operators placing recurring high-volume orders. Account management: multiple buyer users per company account, per-user purchasing authority limits, and approval workflow for orders above threshold (a warehouse manager can approve up to $500; anything above routes to the procurement lead). Contract pricing vs. spot pricing: each account can have negotiated rates for specific products that override the default catalogue price. ERP and OMS integration for operators who need orders to flow into their existing supply chain systems (SAP, NetSuite, Oracle) rather than being managed in a separate platform. Field service dispatch for B2B providers: job assignment to the nearest available field technician, job sheet delivery to the technician's mobile app, time and materials logging from the field, and completion sign-off that triggers invoice generation. We've shipped a centralised order management platform that consolidated multi-platform food delivery operations for B2B operators, delivering 3x revenue growth in the first month by replacing fragmented multi-tablet workflows with a single system.

The dispatch and tracking layer that determines whether an on-demand platform is reliable or not at scale. WebSocket connections for live GPS position streaming, provider location updates pushed to customers and dispatchers in real time without polling. Redis Pub/Sub for fan-out events: when an order status changes, the event published once fans out simultaneously to the customer app, the provider app, and the dispatcher dashboard without each subscriber querying the database independently. Order routing algorithm: configurable matching criteria (distance, acceptance rate, idle time) with weighted scoring so dispatch logic can be tuned operationally without code changes. Google Maps Platform Distance Matrix API for accurate ETA calculation accounting for real-time traffic rather than straight-line distance estimates. Auto-reassignment for provider no-shows and rejections: configurable timeout window, maximum reassignment attempts before escalating to dispatcher, and SLA breach alerts when an order exceeds its promised fulfilment time. Push notifications via FCM and APNs at each order state transition, order confirmed, provider en route, provider arrived, order completed, with deep-link back to the tracking screen rather than the app home.

Payment infrastructure for on-demand platforms where every transaction splits between the platform and one or more providers. Stripe Connect Express accounts for provider onboarding: providers complete identity verification through Stripe's hosted flow, and the platform captures the commission on each transaction via transfer_data.destination and application_fee_amount without the provider funds ever touching the platform's bank account. Configurable payout schedules: daily, weekly, or on-demand payouts to provider bank accounts with Stripe-managed payout processing. Customer-side payment methods: card on file via Stripe Payment Intents for frictionless repeat ordering, Apple Pay and Google Pay for first-time mobile conversions. Wallet balance for platform credits and refunds, customers prefer instant wallet credit over a 3-5 day card refund. Refund and dispute handling: full and partial refunds, chargeback webhook handling with automated evidence submission for disputed charges. Dynamic pricing integration: surge multipliers applied to the base fare before payment capture, with the multiplier and base fare breakdown shown to the customer before confirmation. Regional payment gateway integration where Stripe is unavailable: Razorpay for India, PayMongo for Southeast Asia.