iOS · Android · Web apps

App development agency

Native and cross-platform apps, from first brief to store release, by one dedicated team.

Book a free 30-minute callSee how we work ↓
  • Custom quote after a brief
  • No sales pitch

Company-wide: 4.9+ on Clutch250+ brands10 offices

Brands across our services · company-wide, not app projects

Haldiram's logoFarm Country Brewing logoFlâneur logoGrest logoBonvie logoBaadshah logoOccult Vidya logo

What we build

Mobile app development end to end: the app, its backend and the store release.

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.

Building a SaaS product?Plans and usage-based billing for many customers.

Native or cross-platform?

Native iOS app development in Swift, Android app development in Kotlin, or one shared codebase. We recommend one in discovery.

CompareNativeSwift · KotlinCross-platformReact Native · Flutter
Top performanceYesPartly
Deep device featuresYesPartly
Platform-native designYesPartly
One shared codebaseNoYes
Faster to both storesNoYes
  • Strong fit
  • Depends on scope
  • Not its strength
Or a web app / PWAFor portals and internal tools, no store needed.

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.

Add AI featuresBuilt in, with your data under control.
  • Chat assistant
  • Smart search
  • Document reading
  • Recommendations
AI agent development ↗

Who it's for

One app development company, start to finish.

Founders and start-ups

Idea to release.

Scale-ups and product teams

A rebuild or new platform.

Established B2B companies

Portals and ordering.

Consumer and D2C brands

Loyalty and shopping.

Industries
  • SaaS
  • eCommerce
  • Healthcare
  • Finance
  • Logistics
  • Education

How we work

Five steps, a working build at every stage.

  1. Discovery and scope

    Scope, approach, quote.

    Typical1 to 3 weeks

  2. UX and UI design

    Clickable prototype.

    Typical2 to 5 weeks

  3. Build in sprints

    Two-week sprints with demos.

    Typical8 to 16 weeks for a first version

  4. Testing and store release

    Devices, security, store review.

    Cyber security ↗
    Typical1 to 3 weeks

  5. Support and next versions

    Monitoring, rollback, updates.

    Cloud and DevOps ↗
    TypicalOngoing, as agreed

Typical minimumTypical maximumWeeks (one scale). Typical ranges, not a guarantee.

What you get

Progress you can see.

  1. Written scope and quote
  2. Clickable prototype
  3. Test build every sprint
  4. Real-device testing
  5. Security testing before launch
  6. App Store and Google Play submission
  7. Release monitoring and one-step rollback

Engagement and pricing

No price list: a custom quote after a short brief.

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

  1. Short briefWhat and for whom.
  2. Free 30-minute callBy video, in English.
  3. Written estimateScope, timeline, price.
  4. You decideNo obligation.

What affects the quote

  • PlatformsiOS, Android, web.
  • Screens and featuresHow many, how complex.
  • IntegrationsPayments, CRM, ERP.
  • Design depthStandard or custom.
  • TimelineYour launch date.

Tech stack

Chosen per project.

Apps
iOSSwiftSwiftUI
AndroidKotlinJetpack Compose
Cross-platformReact NativeFlutter
WebTypeScriptReactNext.jsPWA
Backend
Node.jsPythonPostgreSQLREST and GraphQL APIs
Delivery
Automated testsCI/CD pipelinesCrash monitoring

Quality and security

From the first sprint.

OWASP MASVSMobile app securitySource ↗GDPRData protectionSource ↗WCAG 2.2AccessibilitySource ↗App Store Review GuidelinesStore-ready releasesSource ↗

Public standards we align our work to.

Security testing before launch: Cyber security ↗

Brands across our services

Company-wide, from web, brand and marketing clients. Not app projects.

Clutch4.9+Company-wide ratingSee our Clutch profile ↗
They're genuinely accommodating as we work through what feels right for the platform.
Head of Technology, Re-Twin Energy GmbHGermany · Web design and development
Clutch · Sep 2026
We were extremely satisfied with UnFoldMart's work, professionalism, and commitment throughout the project.
Director, Aytrus.CoSingapore · Branding, web dev, UI/UX
Clutch · May 2026
10offices in 10 markets
250+brands worked with
500+projects delivered
8working languages
  • Gurugram (HQ)
  • Frankfurt · in person
  • Amsterdam
  • Zürich · in person
  • London
  • Paris
  • Madrid
  • Warsaw
  • Singapore
  • Vancouver

Frequently asked questions

Before you book a call.

Pricing is custom. Cost depends on platforms, features, integrations, design and timeline. After a short brief and a free call, you get a written estimate.

Typically: discovery 1 to 3 weeks, design 2 to 5 weeks, build 8 to 16 weeks for a first version, release 1 to 3 weeks. Ranges, not guarantees.

Native (Swift, Kotlin) suits top performance and deep device features. Cross-platform (React Native, Flutter) shares one codebase and usually reaches both stores faster.

Projects are led by UnFoldMart from our international offices, with a small dedicated team. Calls are in English, with a demo after each sprint.

We follow OWASP MASVS, collect only the data the app needs and design for GDPR. Security testing runs before launch.

Apps need updates for new iOS and Android versions. Support is agreed in your quote: maintenance and a roadmap, or a clean handover to your team.

Related services

UI/UX designCloud and DevOpsCyber securityAI agent developmentWebsite developmentWebflowSEOBrandingGrowth marketing
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Have an app idea, or an app that needs help?

Tell us what you want to build; the quote follows in writing.

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