DapkeSocial video app with live streaming and PK battles.
Lika Real EstateProperty discovery platform for listings and leads.
BurpoutSocial fitness challenges that keep people moving.
ChatLivoConnected customer communication SaaS workspace.
EmoTalesAI storytelling adventures designed for children.
EarnifyTrack Income from Multiple Sources with Analytics & Tax Planning.
As a Mobile App Development Company, we build custom iOS and Android apps for startups and enterprises using Swift, Kotlin, Flutter, and React Native. From MVPs to enterprise apps, we deliver scalable, production-ready mobile solutions with ongoing maintenance, feature updates, and full ownership of your source code, app store accounts, and IP from day one.
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Hiring from the US? See our mobile app development company in the USA page — Delaware-entity contracts, transparent fixed pricing, US-hour standups, and a senior team ready to scope your app.
Kotlin and Jetpack Compose applications for phones, tablets, and Android TV. We engineer for Android’s real world — fragmented devices, aggressive battery managers, and offline-first users — so your app performs on a $150 handset as reliably as a flagship. Ideal for consumer products targeting emerging markets and enterprise field teams.
Native iPhone and iPad apps in Swift and SwiftUI, built to Apple’s Human Interface Guidelines and current App Review policies. The right choice when your audience skews premium, you need deep Apple ecosystem features — widgets, Apple Pay, HealthKit, Apple Intelligence — or App Store polish is part of the brand.
Our deepest cross-platform specialty, recognized by Clutch’s Top Flutter Developers awards in 2024 and 2026. One Dart codebase ships to iOS and Android with a single team maintaining it — typically the fastest route to market for startups and the most economical for feature-parity products.
Cross-platform apps on a shared JavaScript/TypeScript codebase — the natural fit when your web product already runs on React and you want one talent pool across web and mobile. We use Expo and native modules where needed, so “cross-platform” never means “compromised.”
LLM chat, recommendations, computer vision, and voice built into mobile products — using OpenAI, Anthropic Claude, and Google Gemini in the cloud, or CoreML and TensorFlow Lite on-device where latency and privacy matter. We architect for token costs and fallbacks, not just the demo.
Companion apps for Apple Watch (watchOS) and Wear OS that sync in real time with your mobile product — health monitoring, workout tracking, glanceable notifications, and GPS. Built for the constraints wearables impose: tiny batteries, tiny screens, and zero patience for lag.
There is no universally “best” framework — only the right one for your product, team, and budget. Get it wrong and you pay for it later in rebuild costs and slower releases. This is the same comparison we walk clients through in a free discovery call.
| Approach | Best For | Performance | Speed to Market | Code Sharing | Maintenance Considerations |
|---|---|---|---|---|---|
| Native iOS & Android Swift · Kotlin |
Performance-critical apps: real-time video, AR, games, heavy on-device ML, deep hardware integration | Maximum — direct platform APIs | Slowest — two codebases, two teams | None between platforms | Two codebases to update with every iOS and Android release |
| Flutter Dart |
Startups and businesses that need iOS + Android with identical UI and one team | Near-native for most product categories | Fast — one codebase, one QA cycle | High code reuse across iOS and Android, including UI | Single codebase; watch Flutter SDK upgrade cycles |
| React Native JavaScript / TypeScript |
Teams with existing React web products and JavaScript talent | Near-native; native modules for hot paths | Fast, especially with Expo | High, plus logic shared with React web apps | Native module dependencies need periodic upkeep |
| Progressive Web App | Content and commerce experiences where installs are optional and reach matters most | Good for content; limited device access | Fastest — it’s your website, enhanced | 100% with your web app | One codebase; constrained by browser capabilities, especially on iOS |
App development cost is driven by scope, not a menu: platforms, screen count, backend complexity, integrations, design fidelity, compliance, real-time features, and AI requirements all move the number. The ranges below are planning guides for typical projects — every engagement gets a written, itemized fixed quote after a free discovery call, and that quote is what you pay unless you change the scope.
Best for validating an idea with real users before investing in scale.
Best for funded startups and SMEs launching a full commercial product.
Best for enterprises and regulated industries — scoped and quoted after a technical discovery phase.
The biggest cost decisions happen in the first two weeks of a project, before most of the code is written. Advanced capabilities below are scoped and priced individually during discovery — which is why an enterprise platform with several of them costs a multiple of a starter MVP, and why we quote them transparently instead of hiding them in a package price.
Two native codebases cost substantially more than one Flutter codebase to build and maintain. Cross-platform is the economical default; native earns its premium only for performance-critical products.
A managed backend like Firebase keeps early costs minimal. Custom microservices with authentication, payments, and analytics pipelines are a significant, separately scoped investment.
Clean component-based UI ships fast. Fully custom illustration and animation-heavy interfaces add design and engineering time — worthwhile when brand experience drives retention.
Standard integrations (Stripe, Twilio, Maps, social login) are quick. Payment gateways, regulated healthcare and fintech APIs carry certification and testing overhead that must be scoped upfront.
LLM features, live chat, video calling, and live tracking each add engineering and ongoing infrastructure cost that scales with usage — we model both before you commit.
HIPAA, PCI-DSS, GDPR, and SOC 2 alignment add architecture, audit, and documentation work measured in weeks. Non-negotiable in regulated industries — and far cheaper designed in than retrofitted.
An app built for a few hundred early users costs less to architect than one designed for high-volume, high-availability traffic from day one — scale requirements are confirmed during discovery so infrastructure isn’t over- or under-built.
A starter MVP typically reaches store submission in 6–10 weeks; growth-stage products take 3–5 months; enterprise platforms run 6–9 months. The single biggest variable we can’t control is stakeholder decision speed — the ones we can, we plan to the week below.
| Phase | MVP App | Mid-Complexity | Enterprise App |
|---|---|---|---|
| Discovery & Validation | 3–5 days | 1–2 weeks | 3–4 weeks |
| UI/UX Design | 1–2 weeks | 3–5 weeks | 6–10 weeks |
| Frontend Development | 3–4 weeks | 6–10 weeks | 10–16 weeks |
| Backend & APIs | 2–3 weeks | 4–8 weeks | 10–14 weeks |
| QA & Testing | 1 week | 2–3 weeks | 4–6 weeks |
| App Store Submission | 3–5 days | 1 week | 1–2 weeks |
| Total Timeline | 6–8 weeks | 3–5 months | 6–9 months |
Eight-plus years, real apps live on both stores, and a 100% Upwork Job Success score — these are shipped products, many still maintained by our team today, not portfolio filler.
Features aren’t a checklist — each one exists to serve a business objective. From push notifications and payment gateway integration to AI chatbots and biometric authentication, here’s what we build into every mobile app, organized by what it does for your bottom line.
From healthcare app development to fintech, education, and eCommerce app development — domain knowledge is compounding. We’ve already solved the compliance rules, payment flows, and user expectations of these industries, so your project starts from patterns that work, not a blank page.
Social Media & Content
On-Demand Application
Local Business & Directory
Automotive & Fleet Management
Real Estate
Education
Healthcare & Fitness
Ecommerce & Shopping
Banking & Finance
Food & Restaurant
Media & Social
Hotel Booking
Sports & Fantasy Gaming
Agile Scrum, two-week sprints, weekly demos, one accountable project manager. Every phase ends with a named deliverable in your hands — so progress is something you can open, not something you’re told about.
Research your market, competitors, and users; pressure-test the concept before any code is written.
A discovery summary, prioritized feature scope, and user flows — documents you own outright.
Define the tech stack, architecture, milestones, and budget against your business goals.
An architecture recommendation, sprint plan, and itemized fixed quote.
Design iOS and Android interfaces to Apple HIG and Material Design standards, tested before development begins.
Wireframes and a clickable Figma prototype ready for developer handoff.
Build the app, backend, and integrations in two-week sprints with code review and CI/CD on every merge.
A working build after every sprint, in your own private Git repository from day one.
Functional, performance, security, and device-compatibility testing — automated and manual, on real hardware.
A test report and a release candidate signed off against the agreed scope.
Handle App Store and Play Store submission, cloud deployment, and post-launch monitoring.
A deployment checklist, source-code and credentials handover, and a written support plan.
We choose tools for ecosystem strength and five-year maintainability, then match them to your product’s needs and budget — never the other way around — so you’re never stuck maintaining a stack no other developer can pick up.
Four ways to engage our mobile engineering team — pick the one that matches how defined your scope is and how involved you want to be. Not sure which fits? We’ll recommend one on your free discovery call.
Businesses across New York, California, and Chicago choose Primocys because we deliver what most agencies promise but rarely achieve. Recognized as the best mobile app development company in USA by Clutch — 7 awards, 100% Upwork job success, and 650+ global clients speak for themselves.
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70% of our developers have 5+ years of experience. No bait-and-switch with juniors after kickoff.
We know Apple and Google’s review guidelines cold. Your app launches on schedule, not after rejection cycles.
Every app we ship is architected for AI integration — vector DBs, LLM endpoints, and on-device ML are first-class, not bolt-ons.
For most MVPs, we lock the price in week one — no surprise change orders, no hourly creep.
Source code, designs, IP, and your private Git repository — all yours from day one. We sign NDAs before any technical conversation.
Teams in India, US, and UAE mean someone is always on. Average Slack response time: 27 minutes during business hours.
Real feedback from founders and CTOs who’ve shipped mobile apps with us — read the full, unedited reviews on Clutch (16 reviews), Google (30+ reviews), and Upwork (100% Job Success).
We needed audio/video calls for patient consultations, live streaming for health seminars, and an Instagram-style photo/video feed for our medical community. Primocys delivered every feature, production-ready and on schedule. Their deep understanding of healthcare workflows stood out — they didn’t just build features, they built the right experience. Patient engagement and retention have grown significantly since launch.
Primocys developed my mobile application from scratch, handling everything from initial design to final deployment. They managed the entire project, demonstrating great flexibility by incorporating all my feedback and retakes. Beyond development, they successfully guided me through the App Store and Google Play submission process and are currently managing the app’s ongoing maintenance.
Our B2B and B2C platform helps Nigerian manufacturers sell at wholesale prices and suppliers offer competitive retail pricing, with a strong focus on Made in Africa products and easy local and international distribution. The app has received excellent user reviews for its design and unique features. Communication with the Primocys team was smooth in an agile setup, even beyond office hours when needed. Their mobile app development expertise is excellent—highly professional and reliable.
We hired Primocys to develop a highly complex and specialized mobile application, and they delivered outstanding results. The app includes advanced features such as timeline mixers, classifieds, payments, advertisements, GPS functionality, and more. Their technical skills, timely delivery, availability, and the personal attention Arpan Sagar brings to each project truly stand out. The team stays focused and committed from start to finish—an excellent experience overall.
The dating app was delivered successfully and approved by both Apple App Store and Google Play. Our users are highly impressed with the design, UI, and overall functionality. The project was well planned with clear milestones, and all modules were delivered on time. The team is talented, patient, and flexible, accommodating multiple scope revisions as requirements evolved. Their 24/7 development and support availability made the entire process smooth and reliable.
Great team with excellent communication and a strong commitment to on-time delivery. They developed a fully customized mobile app for both Android and iOS, perfectly matching our requirements. The entire process was smooth and professional, with clear updates at every stage. They are reliable, skilled, and very easy to work with. We’re continuing our partnership on more projects, and choosing them has been one of the best business decisions I’ve made.
Logos are nice; outcomes are better. Here are recent products with the actual challenge, the decisions we made, and what happened after launch.
Generated by Kids Worldwide
AI Creation Time
Instant Story Personalization
iOS & Android Ready
Completed by Users
AI Generation Time
Smart Coaching Engine
iOS & Android Ready
A mobile app is a direct, always-on channel to your customers — and a well-built one pays for itself in retention and revenue. Here’s what it changes in practice.
Free 30-minute call with a senior architect — the same engineers who build our own live products. No sales pitch, just a technical approach you can take anywhere.
Book My Free Strategy Call →Every technology below is chosen to solve a specific business problem — never to pad a proposal. A free discovery call tells you exactly which ones your app actually needs.
Recommendation engines, LLM chat, image recognition, voice, and predictive analytics — in the cloud or on-device with TensorFlow Lite and CoreML.
See AI Development Services →Apps that talk to sensors, wearables, and industrial equipment over MQTT, BLE, and REST — from smart home control to fleet telematics and health monitoring.
AWS, Google Cloud, or Firebase foundations engineered for high availability, auto-scaling under traffic spikes, and global content delivery — sized to your stage, not over-built.
WebSockets and real-time databases powering live chat, tracking, collaboration, and instant sync — the same stack running in our own production chat products.
Decentralized trust, secure payments, and immutable records with Ethereum, Solana, or Hyperledger — where the use case genuinely requires them.
ARKit and ARCore experiences from virtual try-ons and 3D product viewers to property walkthroughs and training simulations.
Get expert guidance and support for your project. Our team is ready to help you succeed.
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The questions we hear from serious buyers every week — answered the way we’d answer them on a call. Don’t see yours? Ask us directly.
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Hear from our clients and why 1200+ businesses trust Primocys
"Our B2B and B2C platform helps Nigerian manufacturers sell at wholesale prices and suppliers offer competitive retail pricing, with a strong focus on Made in Africa products and easy local and international distribution. The app has received excellent user reviews for its design and unique features. Communication with the Primocys team was smooth in an agile setup, even beyond office hours when needed. Their mobile app development expertise is excellent—highly professional and reliable."
"The dating app was delivered successfully and approved by both Apple App Store and Google Play. Our users are highly impressed with the design, UI, and overall functionality. The project was well planned with clear milestones, and all modules were delivered on time. The team is talented, patient, and flexible, accommodating multiple scope revisions as requirements evolved. Their 24/7 development and support availability made the entire process smooth and reliable."
" We hired Primocys to develop a highly complex and specialized mobile application, and they delivered outstanding results. The app includes advanced features such as timeline mixers, classifieds, payments, advertisements, GPS functionality, and more. Their technical skills, timely delivery, availability, and the personal attention Arpan Sagar brings to each project truly stand out. The team stays focused and committed from start to finish—an excellent experience overall."
" Great team with excellent communication and a strong commitment to on-time delivery. They developed a fully customized mobile app for both Android and iOS, perfectly matching our requirements. The entire process was smooth and professional, with clear updates at every stage. They are reliable, skilled, and very easy to work with. We’re continuing our partnership on more projects, and choosing them has been one of the best business decisions I’ve made."
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