Appther is a mobile app development company in Miami that builds bilingual iOS, Android and AI-powered apps for Florida businesses, from Brickell fintechs to Doral logistics operators. 200+ products shipped since 2018, a team that works your Eastern Time hours, and a fixed price agreed before the first sprint.
Talk to Our Miami TeamCompanies that build with Appther
Miami runs on hospitality, trade and money moving across borders. Our app developers in Miami build for guests checking in from a cruise terminal, drivers clearing cargo near MIA, patients booking in Spanish and fintech users sending money home, with the offline resilience a hurricane season demands.
Native iOS and Android apps, or a single Flutter or React Native build for both stores
Bilingual English and Spanish products designed for South Florida's users, with Portuguese and Creole on request
Cloud backends built to stay up through peak season and storm season alike
FIPA, HIPAA, PCI DSS and ADA handled in the architecture, with OFAC screening for cross-border payments
Integrations with property management, POS, EHR, freight and payment systems
Research, design systems and App Store and Google Play release management
From a Wynwood startup shipping its first MVP to a Brickell financial firm replacing a legacy customer app, our app developers in Miami cover the whole mobile stack. Choose the service you need, or bring us the business problem and we will recommend the platform.
Our iOS app development in Miami is built for products that need to pass App Review the first time: Swift and SwiftUI, with Core Data, Combine, Core ML and HealthKit where the product calls for them. We ship through Fastlane and TestFlight and support Apple Business Manager for private distribution to hotel, clinic and warehouse staff.
Android app development in Miami with Kotlin and Jetpack Compose, tested on the mid-range devices your customers and field staff actually carry. We handle Play Console policy, Play Integrity, background-work limits and the device fragmentation that sinks rushed builds.
One Dart codebase for iOS, Android and web, rendered at 60 frames per second with pixel-level control of the interface. Our Flutter developers use it when a Miami business needs both stores covered on one budget without the compromises of a web wrapper.
Miami product teams that already live in TypeScript get one team for web and mobile: React Native shares logic, components and engineers across every surface. We use the new architecture with Hermes, bring in Expo where it earns its place, and write native modules when it does not.
Apps for watchOS and Wear OS, plus companion apps for connected hardware: guest-room controls, marina and yacht telemetry, cold-chain sensors and patient monitors. Our IoT app development team pairs the mobile layer with the firmware and the cloud pipeline behind it.
A guest portal, an admin console, a partner dashboard: most Miami mobile products need a browser surface too. We build them in React and Next.js against the same backend as the app, so custom software development in Miami covers every screen your customers and staff touch.
Some products should skip the store entirely: festival and event apps, kiosks in a hotel lobby, B2B ordering for restaurant suppliers, internal checklists. Our hybrid and PWA builds install from a link, work offline through service workers, and send push notifications where the browser allows it.
Assistants, recommendations and cameras that understand what they see, added to the app you already run. Our AI development practice brings LLM features, predictive models and computer vision into mobile products with the data handling and cost controls to run them every day, not just in a demo.
Whether it serves guests on Ocean Drive, tenants in Brickell towers or drivers moving freight through Doral, an app in South Florida has to handle two languages, seasonal peaks and the occasional week without power. Send us the idea and we will come back with a platform recommendation and a scoped plan.
Start With a Free Scoping Call
Six products from our portfolio that map to what Miami builds: mobility, money movement, media, healthcare and city services. Each number is taken from the published case study, not from a pitch deck.
Lyftup needed three apps that dispatch intelligently, price transparently and stay fast when demand spikes, the same curve a cruise disembarkation creates.
Smart dispatch, live tracking, in-app payments and an admin control center for fleet owners, all on a shared backend.
Lyftup · Ride-hailingA fintech startup needed a wallet that worked without a bank link for customers who are paid, save and shop in cash, the same profile as much of Miami's remittance corridor.
Instant P2P transfers, QR payments and an agent cash-in and cash-out network, launched in six languages from day one.
Digital wallet · FintechA satellite broadcaster wanted its live channels, films and sports on every screen without losing living-room quality.
Native and web OTT apps with adaptive-bitrate streaming and casting, an on-demand catalogue, and a control center where the broadcaster manages channels and content across every device.
Ideal TV · OTT streamingPatients could record an ECG in minutes but waited days for a specialist to read it, with protected health data at every step.
One secure backend serving two surfaces: an iOS app where patients upload an ECG photo, and a clinician portal where cardiologists read, annotate and sign, with HIPAA-grade storage and audit logging underneath.
KALBI · TelecardiologyA clinic's front desk could not keep up with call volume; patients waited on hold, and after-hours calls went to voicemail.
A HIPAA-ready voice agent that answers instantly, verifies the patient, understands intent and books or reschedules appointments in the EHR, around the clock.
Voice agent · HealthcareA city could not see which bins were collected, which routes ran long or where fuel was being burned, and residents had no way to report a missed pickup.
QR and RFID bin scanning, optimized routes, live truck tracking, weigh capture and digital fee collection on one platform.
Waste collection · Public sector"Appther exceeded every expectation, on time, on budget, and the final product has been instrumental in scaling our business. A rare engineering partner."
Johnathan PefferCEO, Bull's Eye Technologies Inc"Appther built our student competition app and portal exactly the way we envisioned it: easy registration, smooth judging workflows, and real-time results that keep participants engaged. Our coordinators no longer chase spreadsheets."
Dionna MilemOwner, My BOB Team LLC"Implementing an ERP across our sugar manufacturing operations felt daunting at first, but Appther made the transition seamless. From production planning to inventory and supply chain visibility, every department now works off a single source of truth."
Pushpender KumarGeneral Manager, AB Sugar LtdMiami's economy looks nothing like the rest of the country's: hospitality and cruise lines, real estate and construction, international trade through PortMiami and MIA, healthcare systems serving a bilingual population, and a fintech and crypto scene concentrated in Brickell. Our mobile app development company in Miami shapes each product around that sector's workflow, regulator and user.
Florida brings its own rules: a breach-notification law with a 30-day clock, a telephone-solicitation act that governs SMS, and one of the country's busiest dockets for digital-accessibility lawsuits. Add HIPAA, PCI DSS and money-transmitter requirements for the sectors Miami is built on, and compliance has to be designed in rather than audited in.
A mobile app development company in Miami has to handle two languages, a tourist-driven demand curve and regulators from Tallahassee to Washington. Five reasons clients keep working with us after the first release.
Spanish and English are planned into the information architecture, the consent screens and the support flows during discovery, so the Spanish experience is a first-class product rather than an afterthought bolted on before launch.
Autoscaling for Art Basel weekend and spring break, offline-first sync and multi-zone hosting for the week the power goes out. We load-test and fail-test before launch, not after the first outage.
Wallets, QR payments and agent networks are on our record. We know what FinCEN, OFAC and a PCI assessor will ask, and we design the app so the answers are already in place.
Discovery ends with a scope document and a fixed price. A named senior engineer runs your project in Eastern Time, demos every two weeks, and there is no open-ended billing. Custom software development in Miami should not come with an open tab.
Bookings, remittances sent, claims closed, rooms turned. We define the number in week one, report against it after launch, and say so plainly when a requested feature will not move it.
Recommendations, assistants and predictive alerts that work in English and Spanish, scoped to a business outcome and shipped inside the product you already have. Miami teams use us for:
Miami projects rarely fail on features. They stall on a Spanish version that ships months late, a compliance review that arrives after the build, a launch that folds under peak-season traffic, and users who never open the app a second time.
Localization gets bolted on at the end, so strings overflow their buttons, dates and currency formats break, and the Spanish support flow leads to an English dead end.
We design for two languages from the first wireframe: string tables, layouts sized for the longer language, locale-aware formatting and bilingual QA, so both versions launch on the same day.
LocalizationFIPA breach duties, HIPAA safeguards, PCI DSS scope and FTSA messaging consent can add months when legal sees the app for the first time at launch.
Compliance is agreed with your counsel during discovery, then built in as encryption, consent flows and audit logs, so healthcare, fintech and hospitality apps are launch-ready without a late rebuild.
ComplianceDemand in Miami is spiky: a cruise disembarkation, a festival weekend, a hurricane warning. Apps sized for the average Tuesday fall over on the day that matters.
Stateless services, queues, caching and autoscaling, load-tested against the peak rather than the mean, with offline-first behavior for when the network goes.
ScaleMost apps lose the majority of their users inside a month, because the second session offers nothing the first one did not.
Onboarding, notifications and personalization are built around one retention number, instrumented from day one and tuned on live data after launch, not on opinions in a meeting.
RetentionWe add these where they change an outcome for the guest, the patient or the business, and leave them out where they would only add cost. Each links to the Appther practice that delivers it.
Personalization for hospitality and retail, demand forecasting for seasonal businesses, and decision support for operators, trained on your own data rather than a generic model.
Bilingual assistants for guests, patients and customers that answer from your own documents and policies, with sources attached and nothing invented.
Connected hotel rooms, marina and yacht telemetry, cold-chain sensors and building controls, surfaced in a mobile app that operators actually open.
Occupancy, remittance volume, claims and delivery data turned into dashboards Florida businesses can act on the same day, not in next month's export.
Voice agents that answer calls in English and Spanish, book appointments and resolve routine requests around the clock, on the same backend as the app.
Tokenized real-estate records, crypto payment rails and wallet integrations for a city where digital assets are part of everyday finance.
Chosen for longevity, not novelty. Every tool below has passed an enterprise security review, has a hiring market in South Florida, and will still be maintained when your app is five years old.
Swift
SwiftUI & UIKit
Xcode
iOS SDK
Kotlin
Jetpack Compose
Android Studio
Android SDK
Flutter
Dart
React Native
Expo
Ionic
Node.js
NestJS
Python
Django
FastAPI
Laravel
Go
PostgreSQL
MongoDB
MySQL
Redis
Firestore
SQLite
Supabase
AWS
Microsoft Azure
Google Cloud
Docker
Kubernetes
Terraform
Auth0
Okta
Keycloak
Firebase Auth
Face ID & Biometrics
OAuth 2.0 / OIDC
Firebase Cloud Messaging
Apple Push Notification service
OneSignal
Twilio SMS & WhatsApp
Stripe
Braintree
PayPal
Square
Apple Pay
Google Pay
Plaid & ACH
Google Analytics 4
Mixpanel
Sentry
Datadog
Grafana
Crashlytics
GitHub Actions
GitLab CI
Fastlane
Bitrise
Jenkins
TestFlight
Send us the idea and we will return a scoped estimate with the platform, team and timeline behind the number, including what a second language adds, usually within one business day.
Get a Scoped Estimate
Six stages, each ending in something you can open, click or sign. Bilingual from the first wireframe, fixed-price from the first sprint.
We start with the business need and the metric it must move, then map the regulatory surface: FIPA and HIPAA for data, PCI DSS and money-transmitter rules for payments, FTSA for messaging. You leave discovery with a written scope, a language plan and a fixed price.
Timeline, team, integrations and release plan agreed in writing. We plan around Miami's calendar, so a hospitality app is not launching the week before Art Basel and a fintech feature is not landing in the middle of tax season.
Our app developers in Miami design for the person actually holding the phone: a guest at check-in, a driver at the port, a patient booking in Spanish. Wireframes, clickable prototypes and a bilingual design system are tested with real users before production code.
Swift and Kotlin, or Flutter and React Native when one codebase makes sense, in two-week sprints with a demo at the end of each. Backend, APIs and integrations are built in parallel so nothing waits on anything else.
Real devices, throttled networks, offline mode and both languages, plus security testing against OWASP MASVS and accessibility checks against WCAG 2.2. Nothing ships with an open critical.
App Store and Google Play submission with listings in English and Spanish, release monitoring and the first weeks of hypercare, then an SLA-backed support plan with crash, performance and retention dashboards you can read without us.
Mobile app development cost in Miami depends on scope, platform, design complexity, the backend and integrations behind the app, and advanced features such as payments, AI or biometrics. A second language adds design and QA effort rather than a second codebase, and we scope it explicitly instead of hiding it in the total.
Want a real number? Talk to our team for a fixed-price quote based on your Miami app, with no open-ended billing after discovery.
Plan on 8 to 14 weeks for a focused MVP, with the English and Spanish versions submitted to the stores together. Add a custom backend and third-party integrations and you are looking at 3 to 6 months. Enterprise builds with compliance reviews, multiple user roles and legacy systems typically run past 6 months. Either way you see a working demo every two weeks.
Yes, and we recommend deciding that in discovery rather than after launch. Bilingual delivery means string tables instead of hard-coded text, layouts sized for the longer language, locale-aware dates, numbers and currency, Spanish parity on consent and privacy screens, bilingual QA and store listings in both languages. Portuguese and Haitian Creole can be added on the same foundation.
Yes. Flutter or React Native is our default for most consumer, hospitality and marketplace apps, because one codebase covers both stores on one budget. We steer clients to native Swift or Kotlin when the product depends on hardware, heavy graphics, background processing or platform-specific features. The recommendation comes out of the free discovery call, not out of habit.
We settle compliance with your counsel during discovery, before anything is designed. For FIPA that means data safeguards and a breach-response plan that meets the 30-day notification clock. For HIPAA it means encrypted storage, role-based access, audit logging and a business associate agreement where one is needed. For payments we keep card data out of your systems with tokenized checkout and design wallet and remittance products around FinCEN, Florida OFR and OFAC requirements. For SMS we build FTSA and TCPA consent into the flow. Every control is documented so an auditor can trace it.
Appther is remote-first, with our US entity registered in California. For Miami clients the US-facing team keeps Eastern Time hours, so stand-ups, demos and escalations land inside your working day, and a named senior engineer stays your single point of contact from kickoff to launch.
Everything is yours: the repositories sit in your organization, the App Store and Google Play accounts are in your name, and the cloud runs in your tenancy. An NDA is signed before discovery, intellectual property is assigned on payment, and leaving us later is a permissions change, not a migration.
Launch week starts hypercare: crash rates, performance and store reviews are watched daily and fixed as they surface. From there you pick a support plan with a defined SLA, OS-update coverage, security patching and a monthly retention and performance report. Ahead of each hurricane season we also review failover, offline behavior and status-page readiness with you.
Cost breakdowns for the app types Miami asks us about most, from ride-hailing to food delivery, so the first call starts from real numbers.
Tell us what the app has to do and who it is for, in English or Spanish. You get a straight answer on approach, scope, timeline and cost, and nothing you did not ask for. Prefer email? Use our contact page.
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