App development company in New York
iOS, Android and web apps for New York companies in fintech, media, commerce and technology, built by one dedicated team and led from our Vancouver office.
- Custom quote after a brief
- No sales pitch
Company-wide:★★★★★ 4.9+ on Clutch·250+ brands·10 offices
UnFoldMart is an app development company serving New York from our Vancouver office at 555 Burrard St, V7X 1M8 Vancouver, about 3,900 km away; we have no office in New York. We design and build iOS, Android, cross-platform (Flutter, React Native) and web apps for companies in New York, with New York's SHIELD Act and, for Californian users, the CCPA planned in, from discovery to store release and support. Meetings are by video in English, in-person meetings are possible at our Frankfurt and Zürich offices, and pricing is a custom quote after a short brief and a free 30-minute call.
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Key facts
| Service | Mobile and web app development: iOS, Android, cross-platform (Flutter, React Native), web apps and PWAs, backend and store release |
|---|---|
| Company | UnFoldMart |
| Serving office | Vancouver office: 555 Burrard St, V7X 1M8 Vancouver, Canada (about 3,900 km from New York; no office in New York) |
| Meetings | By video (in-person meetings only at our Frankfurt and Zürich offices) |
| Languages | First call in English; project calls by video in English |
| Time zone | Eastern Time (ET); project teams are led from our international offices |
| Typical timeline | Discovery 1–3 weeks · design 2–5 weeks · first version 8–16 weeks · testing and store release 1–3 weeks (ranges, not guarantees) |
| Pricing | Custom quote after a short brief: fixed-scope project or ongoing product team. No price list. |
| Booking | Free 30-minute video call ↗ |
| Company-wide | 10 offices in 10 markets · 250+ brands · 500+ projects · 4.9+ on Clutch · 8 working languages |
App development for New York companies
New York City is the most populous city in the United States and a global centre of technology, finance, commerce and media, often called the world's premier financial and fintech centre. Universities include Columbia University and New York University.
New York at a glance
- IndustriesFinance and fintech, technology, media, commerce, fashion
- UniversitiesColumbia University, New York University
- Data lawNY SHIELD Act; state laws such as the CCPA for users in other states
- Serving officeVancouver, about 3,900 km away
- Time zoneEastern Time (EST / EDT)
Fintech and financial services
Onboarding, payments and account apps with security built in.
Media and commerce
Content, subscription and shopping apps.
Start-ups and technology
First versions you can test with users, then scale.
What our app developers for New York build
iOS and Android app development, Flutter and React Native apps, web apps and the secure backend behind them.
iOS and Android apps
Swift and Kotlin, full device access.
Cross-platform apps
One React Native or Flutter codebase.
Web apps and PWAs
Portals and tools, no store needed.
Backend, APIs and integrations
Accounts, payments, CRM, ERP.
MVPs and first versions
Test your idea with real users.
Takeover and support
Review, fixes, upgrades, rebuilds.
Native, cross-platform or web app?
Native iOS app development in Swift, Android in Kotlin, or one Flutter or React Native codebase. We recommend one in discovery.
| Native | Cross-platform | Web app / PWA | |
|---|---|---|---|
| Code | Swift (iOS) and Kotlin (Android) | One codebase: Flutter or React Native | One codebase: TypeScript, React |
| Performance and device features | Best; full device access | Very good for most apps | Good; limited device access |
| Time to both stores | Longest: two apps | Usually faster | No store needed |
| Best for | Demanding, device-heavy apps | Most business and consumer apps | Portals and internal tools |
Apps we can build
Common app types; illustrative screens, not client work.
Booking and scheduling
Pick a slot, pay, get reminders.
Shop and loyalty app
Browse, buy, collect points.
Customer portal
Orders and documents, one login.
Field-service tool
Jobs and checklists on site.
Marketplace
Two sides meet and book.
Finance dashboard
Balances and reports at a glance.
- Chat assistant
- Smart search
- Document reading
- Recommendations
How we work
From brief to store release, with a working build at every stage.
- 1BriefScope and quote
- 2PrototypeClickable design
- 3SprintsDemo every two weeks
- 4Store releaseApp Store · Google Play
Timeline
| Phase | Typical duration | You get |
|---|---|---|
| Discovery and scope | 1 to 3 weeks | Written scope and quote |
| UX and UI design | 2 to 5 weeks | Clickable prototype |
| Build in sprints | 8 to 16 weeks for a first version | Test build every sprint |
| Testing and store release | 1 to 3 weeks | Real-device and security testing, store submission |
| Support and next versions | Ongoing, as agreed | Monitoring, updates, next versions |
Typical ranges in weeks, not a guarantee.
How to choose an app development company in New York
Six checks before you sign, whoever you hire.
Platform fit
Ask which approach they recommend (native, Flutter, React Native or web) and why.
UnFoldMart: We recommend one in discovery.
A written scope and quote
What is in, what is out, and how changes are priced.
UnFoldMart: Scope, timeline and price in writing.
A visible process
A clickable prototype first, then demos and test builds you can install.
UnFoldMart: A demo after every two-week sprint.
Security and data protection
How data is protected and tested before release.
UnFoldMart: OWASP MASVS, security testing before launch.
Store release and ownership
Who submits to the App Store and Google Play, and who holds the accounts and code.
UnFoldMart: App Store and Google Play submission is part of our release step.
Support after launch
Updates for new iOS and Android versions, monitoring and a clean handover option.
UnFoldMart: Support agreed in your quote.
Agency, freelancer or in-house team?
| App agency | Freelancer | In-house team | |
|---|---|---|---|
| Skills | Design, build, testing and release in one team | Usually one specialism | The roles you hire |
| Start | After scope and quote | Often quick | After hiring |
| Continuity | Team covers absences and handover | Depends on one person | High while the team stays |
| Your management effort | Low to medium | Medium to high | High |
| Cost model | Project quote or monthly team | Hourly or daily rate | Salaries, hiring and tools |
| Best for | A full app, start to finish | A defined, smaller task | A long-term core product |
What affects the cost
No price list. Your quote depends on these factors.
- PlatformsiOS, Android, web.
- Screens and featuresHow many, how complex.
- IntegrationsPayments, CRM, ERP.
- Design depthStandard or custom.
- TimelineYour launch date.
- Security and compliance reviewsFintech apps need extra security testing and documentation for your risk and compliance teams.
Ways to work with us
Fixed-scope project
Scope and price in writing.
Ongoing product team
A dedicated team, monthly.
Discovery first
A scope you can use anywhere.
How quoting works
- Short briefWhat and for whom.
- Free 30-minute callBy video, in English.
- Written estimateScope, timeline, price.
- You decideNo obligation.
SHIELD Act and state privacy laws
This is general information, not legal advice. Your legal adviser has the final word.
New York SHIELD Act
Signed in July 2019, the SHIELD Act requires companies holding New Yorkers' private information to keep reasonable safeguards and to notify a breach. Private information now includes biometric data and a username or email address with its password. We build these safeguards into the app and backend.
Official source: SHIELD Act (ag.ny.gov) ↗CCPA for users in California
If your app also serves Californians, the CCPA gives them rights to know, delete and opt out of the sale or sharing of their personal information. We plan privacy controls in once, for every state you serve.
Official source: CCPA (oag.ca.gov) ↗Public standards we align our work to
Working with us from New York
One dedicated team; projects are led by UnFoldMart from our international offices.
Served from our Vancouver office
555 Burrard St, V7X 1M8 Vancouver, about 3,900 km from New York. We have no office in New York; we work with you by video.
By video
Workshops, demos and weekly check-ins by video.
Language
Calls and project work in English.
Time zone: Eastern Time (ET)
Office-hours overlap: –
09:00–18:00 local time in both offices. Eastern Time is 2 hours ahead of our Vancouver office in winter and 3 hours in summer, so shared office hours fall in your late morning and afternoon in winter and in your afternoon in summer.
Company-wide figures across all our services, not app projects.
- Frankfurt · in person
- Zürich · in person
- London
- Amsterdam
- Paris
- Madrid
- Warsaw
- Singapore
- Vancouver
- Gurugram
Frequently asked questions
App development in New York: before you book a call.
Do you have an office in New York?
No. We serve New York from our Vancouver office at 555 Burrard St, V7X 1M8 Vancouver, about 3,900 km away. Workshops, design reviews and weekly check-ins take place by video; in-person meetings are possible at our Frankfurt and Zürich offices.
How much does app development cost in New York?
Pricing is custom. Cost depends on platforms, screens and features, integrations, design depth, compliance needs and your timeline. After a short brief and a free 30-minute call, you get a written estimate.
How long does it take to build an app?
Typically: discovery 1 to 3 weeks, design 2 to 5 weeks, build 8 to 16 weeks for a first version, testing and store release 1 to 3 weeks. These are ranges, not guarantees.
Should we build a native app or use Flutter or React Native?
Native (Swift for iOS, Kotlin for Android) suits top performance and deep device features. Cross-platform (Flutter or React Native) shares one codebase and usually reaches both stores faster. We recommend one in discovery.
Do you build fintech apps for New York companies?
Yes, we build onboarding, payments and account apps. Security testing runs before every release, and we document how we handle data and access so your risk and compliance teams can review it.
How do you handle the New York SHIELD Act?
We build reasonable safeguards into the app and backend, such as encryption, access control and logging, and set up a breach contact list with you before launch. Your legal adviser has the final word.
How do time zones work with your team?
Projects for New York are led from our Vancouver office, which is 2 hours behind Eastern Time in winter and 3 hours in summer, so shared office hours fall in your late morning and afternoon in winter and in your afternoon in summer. Demos and check-ins are scheduled in that window.
Can we meet in person?
In-person meetings are possible at our Frankfurt and Zürich offices. With New York we work by video.
Who works on our project, and how do we communicate?
Projects are led by UnFoldMart from our international offices, with a small dedicated team; projects for New York are led from our Vancouver office. Calls are by video, in English, with a demo after each sprint.
Can you take over an existing app?
Yes. We start with a review of the code, the store listings and the backend, then fix, upgrade or rebuild in steps, so your app stays available.
Building an app in New York?
Tell us what you want to build; the quote follows in writing.