Mobile Apps

Mobile Apps

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Apps That Scale
Experiences That Stick

Mobile Without Compromise

With 15+ years in product design and engineering, we craft iOS, Android, and cross-platform apps that feel fast, fluent, and trustworthy. Our own work proves it: Abstruct has been downloaded over 1.5 million times.

We design for clarity and flow. Real devices, real networks, real people. Accessibility is built in, not bolted on.

We engineer for the long run. Native iOS and Android when performance or platform polish matters. Cross-platform when speed and shared code create leverage.

We build the hard parts that make apps useful every day: secure authentication, subscriptions, in-app purchases, maps and location, camera and media, real-time sync, analytics, CI/CD, crash reporting, staged rollouts, and observability keep quality high as you scale.

"GrandWorks have been our development partner for more than four years, guiding our logistics app from first release to a feature-rich product used by thousands of drivers every day. Their technical depth, proactive communication and refreshingly competitive pricing have consistently exceeded our expectations. If you need a team that feels like an extension of your own—fast, reliable and budget-conscious—look no further."

Kim Aleksander Hammer Iversen

CEO at Zendera

From sleek, customer-facing apps to powerful internal tools, we turn your ideas into digital
products that live in your customers’ pockets.

we turn your ideas into digital
products.

We turn your ideas into digital
products

Customer
Facing Apps

We build mobile apps that boost engagement—from shopping and booking to loyalty, support, and content platforms that keep users connected

Business
Operations Apps

We create mobile tools that boost team productivity—like employee portals, inventory tracking, mobile CRM, field service apps, and internal communication platforms.

Membership &
E-commerce

Turn your online store into a mobile-first experience with faster load times, push notifications, one-touch checkout, personalized recommendations, and built-in loyalty features.

Marketplace & Platform Apps

Launch platforms that connect people and enable transactions—whether for local services, product marketplaces, rentals, events, or professional networking and collaboration.

Customer
Facing Apps

We build mobile apps that boost engagement—from shopping and booking to loyalty, support, and content platforms that keep users connected

Business
Operations Apps

We create mobile tools that boost team productivity—like employee portals, inventory tracking, mobile CRM, field service apps, and internal communication platforms.

Membership &
E-commerce

Turn your online store into a mobile-first experience with faster load times, push notifications, one-touch checkout, personalized recommendations, and built-in loyalty features.

Marketplace & Platform Apps

Launch platforms that connect people and enable transactions—whether for local services, product marketplaces, rentals, events, or professional networking and collaboration.

Customer
Facing Apps

We build mobile apps that boost engagement—from shopping and booking to loyalty, support, and content platforms that keep users connected

Business
Operations Apps

We create mobile tools that boost team productivity—like employee portals, inventory tracking, mobile CRM, field service apps, and internal communication platforms.

Membership &
E-commerce

Turn your online store into a mobile-first experience with faster load times, push notifications, one-touch checkout, personalized recommendations, and built-in loyalty features.

Marketplace & Platform Apps

Launch platforms that connect people and enable transactions—whether for local services, product marketplaces, rentals, events, or professional networking and collaboration.

Essential Features

Registration & User Login

Secure account creation with email, social login, OTP, and biometric authentication options.

Push Notifications & In-App Communication

Trusted Security

Secure Payment
Processing

User Profiles
& Personalization

Media Upload
& Management

Geo-location
& Maps

Metrics Panel

Analytics & Admin Dashboard

Photo, video, and document capture with editing tools and cloud storage.

Advanced Search & Filtering

Booking & Scheduling

Offline Functionality

App works without internet through caching, syncs automatically when reconnected.

Advanced Hardware

QR/barcode scanning, AR experiences, VR integration, and advanced device hardware utilization.

Loyalty & Rewards Programs

Points, badges, referral bonuses, and tiered rewards to increase retention.

Essential Features

Registration & User Login

Secure account creation with email, social login, OTP, and biometric authentication options.

Push Notifications & In-App Communication

Trusted Security

Secure Payment
Processing

User Profiles
& Personalization

Media Upload
& Management

Geo-location
& Maps

Metrics Panel

Analytics & Admin Dashboard

Photo, video, and document capture with editing tools and cloud storage.

Advanced Search & Filtering

Booking & Scheduling

Offline Functionality

App works without internet through caching, syncs automatically when reconnected.

Advanced Hardware

QR/barcode scanning, AR experiences, VR integration, and advanced device hardware utilization.

Loyalty & Rewards Programs

Points, badges, referral bonuses, and tiered rewards to increase retention.

Essential Features

Registration & User Login

Secure account creation with email, social login, OTP, and biometric authentication options.

Push Notifications & In-App Communication

Trusted Security

Secure Payment Processing

User Profiles & Personalization

Media Upload & Management

Geo-location & Maps

Metrics Panel

Analytics
& Admin Dashboard

Photo, video, document capture and more.

Advanced Search & Filtering

Booking & Scheduling

Offline Functionality

App works without internet through caching, syncs automatically when reconnected.

Advanced Hardware

QR/barcode scanning, AR experiences, VR integration and more.

Loyalty & Rewards Programs

Points, badges, referral bonuses, and tiered rewards to increase retention.

Development

Development Approaches

We offer flexible development approaches using both native and React Native frameworks to ensure optimal performance and scalability.

We offer flexible development approaches using both native and React Native frameworks to ensure optimal performance and scalability.

Native Apps

Native Apps

Tailored Performance for iOS or Android, built specifically for each platform to maximize performance and access all hardware features

Fastest performance, smoothest UI

Deep integration with device sensors and APIs

Best-in-class offline functionality

Optimized for App Store discoverability

Cross-Platform Apps

Cross-Platform Apps

One Codebase, All Devices, Launch across Android and iOS simultaneously without doubling your development cost: One Codebase, All Devices, One Codebase, All Devices,

Faster time-to-market

Consistent experience across devices

Easier maintenance and future scaling

Lower development and support costs

Testimonials

We’ve earned trust by showing up, solving problems, and building long-term partnerships with brands around the world.

“ We’re more than happy to recommend the service provided by GrandWorks. Since they launched our new site we’ve seen a massive increase in sales and an increased conversion rate simultaneously. Highly competent and motivated team that will take your business to the next level! ”
“ We’re more than happy to recommend the service provided by GrandWorks. Since they launched our new site we’ve seen a massive increase in sales and an increased conversion rate simultaneously. Highly competent and motivated team that will take your business to the next level! ”
“ We’re more than happy to recommend the service provided by GrandWorks. Since they launched our new site we’ve seen a massive increase in sales and an increased conversion rate simultaneously. Highly competent and motivated team that will take your business to the next level! ”

Rick Bjelk

Rick Bjelk

Rick Bjelk

CEO at Träningsmat
CEO at Träningsmat
CEO at Träningsmat
“ GrandWorks brought a fresh, modern edge to our online presence while staying true to Hidesign’s heritage of craftsmanship and luxury. Their design sense, responsiveness, and ability to align with our brand values impressed us deeply. The website reflects our story beautifully. ”

Ruth Sequeira

Director, Hidesign

Built on Experience, Always.

Built on
Experience,
Always.

“ GrandWorks have been our development partner for more than four years, guiding our logistics app from first release to a feature-rich product used by thousands of drivers every day. Their technical depth, proactive communication and refreshingly competitive pricing have consistently exceeded our expectations. If you need a team that feels like an extension of your own—fast, reliable and budget-conscious—look no further. ”

Kim Aleksander Hammer Iversen

CEO at Zendera

Recent Work

Recent Work

Recent Work

All Case Studies

All Case Studies

View All

View All

View All

View All

Design & Development

Abstruct

WEBSITE DESIGN & DEV

DigitalSky

Design & Development

Abstruct

DEVelopment

Zendera

DESIGN & DEVelopment

Träningsmat

DEVelopment

Zendera

WEBSITE DESIGN & DEV

DigitalSky

WEBSITE DESIGN & DEV

UpCloud

WEBSITE DESIGN & DEV

DigitalSky

Frequently Asked Questions

Frequently Asked Questions

Frequently Asked Questions

This depends on how your customers will use your product and what features you need. Mobile apps are better for frequent daily use, when you need device features like push notifications or camera access, or when offline functionality is important. Web apps are more cost-effective and easier to update, making them ideal for businesses just testing their digital product concept. We'll help you evaluate which approach best fits your users' needs and budget.
App development timelines vary by complexity: simple apps typically take 2-4 months, medium complexity apps take 4-6 months, and complex apps can take 6+ months. We use an agile development process with regular milestone deliveries so you can see progress throughout the project. We'll provide a detailed timeline after understanding your specific feature requirements.
We offer both native development (separate apps for iOS and Android) and cross-platform development (one codebase for both platforms). For most growing businesses, we recommend cross-platform development using React Native as it's more cost-effective and faster to market. We'll recommend the best approach based on your budget, timeline, and performance requirements.
We handle the entire app store submission process for both Apple's App Store and Google Play Store. This includes assembling and uploading all required metadata, screenshots, and descriptions, ensuring compliance with store guidelines, and managing the review process. Apple typically takes 1-2 days for review, while Google Play takes 1-3 days. We'll guide you through creating developer accounts and any required business verification.
App maintenance typically costs 15-20% of the initial development cost annually. This includes security updates, compatibility fixes for new OS versions, bug fixes, and minor feature improvements. For a $50,000 app, expect $7,500-$10,000 annually for maintenance. We offer maintenance packages that include regular updates, performance monitoring, and ongoing support to keep your app running smoothly. We also offer retainer solutions with a fixed amount of development and design hours per month. Read more about this on our Maintenance services page.
We design our apps with scalability in mind, making it easier to add new features as your business grows. We can provide cost estimates for additional features and prioritize them based on user feedback and business goals. Many of our clients start with a minimum viable product (MVP) and add features over time as they learn what users want most. We also offer retainer solutions, read more about this on our Maintenance services page.
This depends on how your customers will use your product and what features you need. Mobile apps are better for frequent daily use, when you need device features like push notifications or camera access, or when offline functionality is important. Web apps are more cost-effective and easier to update, making them ideal for businesses just testing their digital product concept. We'll help you evaluate which approach best fits your users' needs and budget.
App development timelines vary by complexity: simple apps typically take 2-4 months, medium complexity apps take 4-6 months, and complex apps can take 6+ months. We use an agile development process with regular milestone deliveries so you can see progress throughout the project. We'll provide a detailed timeline after understanding your specific feature requirements.
We offer both native development (separate apps for iOS and Android) and cross-platform development (one codebase for both platforms). For most growing businesses, we recommend cross-platform development using React Native as it's more cost-effective and faster to market. We'll recommend the best approach based on your budget, timeline, and performance requirements.
We handle the entire app store submission process for both Apple's App Store and Google Play Store. This includes assembling and uploading all required metadata, screenshots, and descriptions, ensuring compliance with store guidelines, and managing the review process. Apple typically takes 1-2 days for review, while Google Play takes 1-3 days. We'll guide you through creating developer accounts and any required business verification.
App maintenance typically costs 15-20% of the initial development cost annually. This includes security updates, compatibility fixes for new OS versions, bug fixes, and minor feature improvements. For a $50,000 app, expect $7,500-$10,000 annually for maintenance. We offer maintenance packages that include regular updates, performance monitoring, and ongoing support to keep your app running smoothly. We also offer retainer solutions with a fixed amount of development and design hours per month. Read more about this on our Maintenance services page.
We design our apps with scalability in mind, making it easier to add new features as your business grows. We can provide cost estimates for additional features and prioritize them based on user feedback and business goals. Many of our clients start with a minimum viable product (MVP) and add features over time as they learn what users want most. We also offer retainer solutions, read more about this on our Maintenance services page.

Other Services

Other Services

Design

We shape products where beauty and usability speak the same language.

Design

We shape products where beauty and usability speak the same language.

Design

We shape products where beauty and usability speak the same language.

E-Commerce

Design meets performance, driving conversions that last beyond the checkout.

E-Commerce

Design meets performance, driving conversions that last beyond the checkout.

E-Commerce

Design meets performance, driving conversions that last beyond the checkout.

Maintenance

We keep your systems sharp, secure, and ready for growth.

Maintenance

We keep your systems sharp, secure, and ready for growth.

Maintenance

We keep your systems sharp, secure, and ready for growth.

Ready to grow your
online business?

Ready to grow your
online business?

We love working with clients who are passionate about creating outstanding mobile apps and websites. Whether you have a detailed project brief or just a basic idea, we're here to listen and help you bring it to life.

We love working with clients who are passionate about creating outstanding mobile apps and websites. Whether you have a detailed project brief or just a basic idea, we're here to listen and help you bring it to life.

Let's Connect

Let's Connect

Let's Connect

Let's Connect

Let's Connect

Let's Connect