Mobile, desktop & cross-platform apps
Application Development: Apps people keep opening
iOS, Android, cross-platform and desktop apps, from first idea to App Store launch, designed for real users and built to stay fast as you grow.
Everything we do in app development
Native, cross-platform or desktop: one team from idea to the app stores.
Native apps
Apps built for each platform, with the best performance and feel.
- iOS apps (Swift): Apps for iPhone and iPad that feel truly native.
- Android apps (Kotlin): Apps for the full range of Android phones and tablets.
- Wearables & widgets: Watch apps, home-screen widgets and extensions.
- Device features: Camera, GPS, Bluetooth, biometrics and sensors.
Cross-platform apps
One codebase, both stores, less time and cost.
- Flutter apps: Beautiful apps for iOS and Android from one codebase.
- React Native apps: Cross-platform apps that share code with your web app.
- Progressive web apps: Installable web apps that work offline.
- Code sharing with web: Logic and design shared across app and website.
Startup MVPs
Launch fast, learn fast, then build what users want.
- Idea validation: Clickable prototypes tested with real users.
- MVP builds: The smallest app that proves your idea, shipped quickly.
- Investor-ready demos: Polished prototypes for pitches and fundraising.
- Scale-up rebuilds: From MVP to a stable, scalable product.
App types
Experience across the apps businesses need most.
- Shopping & e-commerce apps: Catalogues, carts, payments and order tracking.
- Booking & on-demand apps: Services, slots, live tracking and payments.
- Social & community apps: Profiles, feeds, chat and notifications.
- Fitness & health apps: Tracking, plans, wearables and reminders.
- Education apps: Courses, quizzes, live classes and progress.
- Enterprise apps: Field teams, inspections, approvals and internal tools.
Desktop apps
Software for Windows, macOS and Linux.
- Electron apps: Cross-platform desktop apps built with web technology.
- Windows & macOS tools: Native utilities and business software.
- Offline-first software: Apps that work without internet and sync later.
- Point-of-sale & kiosks: Billing, kiosks and in-store software.
App design
Screens people understand at a glance.
- UX research & flows: User journeys mapped before anything is designed.
- UI design: Clean, branded screens for every state and size.
- Interactive prototypes: Tap-through prototypes to test before building.
- Motion design: Animations that make the app feel alive.
Backend & features
Everything an app needs behind the screens.
- APIs & cloud backends: Secure, scalable backends for your app.
- Payments: Razorpay, Stripe, UPI and in-app purchases.
- Push notifications: Timely messages that bring users back.
- Chat, maps & media: Messaging, location, video and file uploads.
- AI features: Smart search, recommendations, chat and image features.
Launch & care
Getting into the stores and staying healthy there.
- App Store & Play Store launch: Listings, screenshots, review and release handled.
- Testing on real devices: Checked across phones, OS versions and screen sizes.
- Crash & performance monitoring: Problems spotted and fixed before reviews mention them.
- Updates & maintenance: OS updates, new features and fixes every month.
How we work
- Idea & scope: We shape the idea, define the core features and choose native or cross-platform.
- Design & prototype: Every screen is designed and turned into a prototype you can tap through.
- Build in sprints: Features are built in short sprints, with test builds on your phone every week.
- Test & launch: We test on real devices and handle the App Store and Play Store releases.
- Grow & maintain: Updates, new features and monitoring keep the app fast and stable.
Apps we build for every industry
- Retail & D2C: Shopping apps with loyalty, offers and fast checkout.
- Food & delivery: Ordering, live tracking and restaurant dashboards.
- Healthcare & fitness: Appointments, tracking, reminders and telehealth.
- Education: Learning apps with courses, quizzes and live classes.
- Travel & hospitality: Bookings, itineraries and guest experiences.
- Real estate: Property search, site visits and agent tools.
- Fintech: Wallets, payments and dashboards built securely.
- Field services: Apps for technicians, inspections and deliveries.
Why Signmozo
- Weekly test builds: You install and try the app on your own phone as it grows.
- Native feel, either way: Cross-platform apps that still feel at home on each device.
- Store launch handled: Listings, reviews and releases taken care of for you.
- Built to last: Clean code and monitoring, so updates stay easy.
Ways to work with us
- MVP sprint: A focused first version to test your idea with real users.
- Full app project: Design, build and launch with a fixed scope and timeline.
- Dedicated app team: An ongoing team that keeps shipping features every sprint.
Frequently asked questions
Native or cross-platform: which is right for me?
Cross-platform (Flutter or React Native) suits most apps and saves time and cost. Native is better for heavy graphics, advanced device features or the very best performance. We help you choose on the first call.
How long does it take to build an app?
An MVP usually takes a couple of months; larger apps are delivered in phases. You get a timeline after we agree on the features.
Do you publish the app to the stores?
Yes. We prepare the listings, handle the review process and release the app on the App Store and Google Play.
Can you add features to an existing app?
Yes. We review the current code first, then add features, fix issues or rebuild parts that are holding the app back.
Do you build the backend too?
Yes: APIs, databases, admin panels, payments and notifications are all part of what we build.
What happens after launch?
We monitor crashes and performance, ship OS updates and keep adding features on a monthly plan if you want us to.