App development company in San Francisco
iOS, Android and web apps for San Francisco start-ups and companies in tech, health and finance, led from our Vancouver office, close to your time zone.
- 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 San Francisco from our Vancouver office at 555 Burrard St, V7X 1M8 Vancouver, about 1,300 km away; we have no office in San Francisco. We design and build iOS, Android, cross-platform (Flutter, React Native) and web apps for companies in San Francisco, with the CCPA as amended by the CPRA planned in, from discovery to store release and support. Meet us in person at our Vancouver office or at any of our 10 offices, or by video. Meetings are in English, 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 1,300 km from San Francisco; no office in San Francisco) |
| Meetings | Meet us in person at our Vancouver office or at any of our 10 offices, or by video. |
| Languages | First call in English; project calls by video in English |
| Time zone | Pacific Time (PT); 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 San Francisco companies
San Francisco is a global centre for technology and finance. Its economy is driven by high tech, healthcare, finance, insurance and professional services, start-ups and venture capital, and universities such as UCSF and San Francisco State University.
San Francisco at a glance
- IndustriesTechnology, start-ups and venture capital, healthcare, finance
- UniversitiesUCSF, University of San Francisco, San Francisco State University
- Data lawCCPA as amended by the CPRA; California Privacy Protection Agency
- Serving officeVancouver, about 1,300 km away
- Time zonePacific Time (PST / PDT)
Start-ups
First versions you can put in front of users quickly, then scale.
Health and life sciences
Patient, care and research apps with careful data handling.
Fintech
Onboarding, payments and account apps with security built in.
What our app developers for San Francisco build
iOS and Android app development, Flutter and React Native apps, web apps and the 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 San Francisco
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.
- AI featuresAdding AI features, such as assistants or smart search, adds design, data and testing work.
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.
CCPA, CPRA and the CPPA
This is general information, not legal advice. Your legal adviser has the final word.
CCPA as amended by the CPRA
The CCPA gives Californians the right to know, delete and opt out of the sale or sharing of their personal information, including through Global Privacy Control. Since 1 January 2023 they can also correct data and limit the use of sensitive personal information.
Official source: CCPA (oag.ca.gov) ↗California Privacy Protection Agency
The CPPA implements and enforces California's privacy law alongside the Attorney General. We plan privacy controls and opt-outs into the app from the first sprint.
Official source: CPPA (cppa.ca.gov) ↗Public standards we align our work to
Working with us from San Francisco
One dedicated team; projects are led by UnFoldMart from our international offices.
Served from our Vancouver office
555 Burrard St, V7X 1M8 Vancouver, about 1,300 km from San Francisco. We have no office in San Francisco.
In person or by video
Meet us in person at our Vancouver office or at any of our 10 offices, or by video.
Language
Calls and project work in English.
Time zone: Pacific Time (PT)
Office-hours overlap: –
09:00–18:00 local time in both offices. Our Vancouver office is 1 hour ahead of Pacific Time in winter and has the same time in summer, so office hours overlap for at least 8 hours a day.
Company-wide figures across all our services, not app projects.
- Frankfurt · in person
- Zürich · in person
- London · in person
- Amsterdam · in person
- Paris · in person
- Madrid · in person
- Warsaw · in person
- Singapore · in person
- Vancouver · in person
- Gurugram · in person
Frequently asked questions
App development in San Francisco: before you book a call.
Do you have an office in San Francisco?
No. We serve San Francisco from our Vancouver office at 555 Burrard St, V7X 1M8 Vancouver, about 1,300 km away. Meet us in person at our Vancouver office or at any of our 10 offices, or by video. Workshops, design reviews and weekly check-ins run in English.
How much does app development cost in San Francisco?
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 first versions for start-ups in San Francisco?
Yes. We often start with a short discovery and a clickable prototype, then build a first version you can test with real users and grow sprint by sprint.
How do you handle the CCPA and CPRA?
We plan notices, opt-outs including Global Privacy Control, and requests to know, delete and correct data into the app and backend from the first sprint. Your legal adviser has the final word.
Do you work in our time zone?
Nearly. Projects for San Francisco are led from our Vancouver office, which is 1 hour ahead of San Francisco in winter and has the same time in summer, so office hours overlap for at least 8 hours a day.
Can we meet in person?
Yes. Meet us in person at our Vancouver office or at any of our 10 offices, or 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 San Francisco 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 San Francisco?
Tell us what you want to build; the quote follows in writing.