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2× Agency of the Year
2× App Design of the Year

Your Certified FlutterFlow Partners

Work with a dedicated FlutterFlow team to launch and scale your cross-platform product.

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Three soft spotlights shining down against a black background.

Building scalable products that perform, grow, and deliver results

100+

FlutterFlow Projects Completed

4x

Four time FlutterFlow Award Winners

$20M+

ARR Products Built With FlutterFlow Before

4.9

Our Client Satisfaction Score

Why work with us?

We act as an extension of your team, supporting your product with ongoing development, improvements, and growth.

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See All Projects
01
Your FlutterFlow App. Limitless Functionality.
Our team of Flutter Experts elevates the quality of your FlutterFlow app by integrating custom Flutter/Dart code to implement complex custom features.
02
One Team.
Your Team.
Design, development, project management & QA - all done with our in-house team of experts. We handle your app dev process from idea to publication.
03
All About FlutterFlow Since Day 1
We move the border of possibilities with FlutterFlow. While others said it can’t be done we simply did it.
04
Scale To Millions Of Users
We have experience developing $20M ARR platforms with thousands of daily transactions. If you need secure and scalable architecture we’ve got your covered.
01
Your FlutterFlow App. Limitless Functionality.
Our team of Flutter Experts elevates the quality of your FlutterFlow app by integrating custom Flutter/Dart code to implement complex custom features.
02
One Team.
Your Team.
Design, development, project management & QA - all done with our in-house team of experts. We handle your app dev process from idea to publication.
03
All About FlutterFlow Since Day 1
We move the border of possibilities with FlutterFlow. While others said it can’t be done we simply did it.
04
Scale To Millions Of Users
We have experience developing $20M ARR platforms with thousands of daily transactions. If you need secure and scalable architecture we’ve got your covered.

The kind of partnerships that stay - long after launch day.

For us, it's always been about the people first.

Built for every stage of your product journey

Rapid mvp development

Rapid mvp development

We build high-performance, scalable apps tailored for seamless user experiences across devices.

BOOK A CALL

CUSTOM  CROSS-PLATFORM  PRODCUTS

CUSTOM  CROSS-PLATFORM  PRODCUTS

No limitation to your product complexity. We develop fully custom and scalable Flutter code.

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ONGOING DEV & DESIGN FOR PRODUCT GROWTH

ONGOING DEV & DESIGN FOR PRODUCT GROWTH

We dedicate our in-house team to support your product growth with ongoing design and development.

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Certificates & Awards

Our expertise was earned through the years of hard work and dedication to the craft.

SELECT
PARTNER
RECOGNIZED AI EXPERTISE
Among the first agencies to join OpenAI’s new global Partner Network.
CERTIFIED EXPERTS
CERTIFIED EXPERTS
Recognized as Top 4 Featured Supabase Development Experts
Agency Of The Year 2026
CERTIFIED AGENCY
Agency Of The Year (2025 ⎸ 2026) & App Design Of The Year (2024 ⎸ 2025)
Security compliant solutions
High security standards
Our products are built to comply with highest security standards including SOC2, HIPAA, and GDPR.
VERIFIED SERVICES PARTNERS
CERTIFIED AGENCY
Experts We have experience integrating complex Stripe systems scaling to $20M+ in ARR.
Certified Experts
CERTIFIED EXPERTS
Certified expertise in integrating leading mobile & web payment provider

Choose the right build for your business

Compare
Features
Best For
Scalability
Security
Custom Features
Own Your Code
Vendor Lock-In
Development speed
Price
FLUTTERFLOW
Balanced speed and scalability for real products
Best For
Scaling Products
Scalability
1M+ Users
Security
Role-Based Access Control, SOC2, GDPR, HIPAA & Other Top Standards
Custom Features
High Flexibility (Custom Flutter Code)
Own Your Code
(Exportable Flutter Code)
Vendor Lock-In
(Export Your Project)
Development speed
Weeks
Price
Moderate
CUSTOM
Complete flexibility for teams that need full control
Best For
Scaling Products
Scalability
1M+ Users
Security
Depends on Code Quality
Custom Features
High Flexibility
Own Your Code
Vendor Lock-In
Development speed
Months
Price
Expensive
VIBE CODING
Speed-first approach forearly-stage ideas
Best For
Idea Validation
Scalability
1k Users
Security
Not Strong
Custom Features
Very Limited
Own Your Code
Partially
Vendor Lock-In
Development speed
Days
Price
Expensive With Growth

Phillip Shepard

Owner, All Things NWA

They want their projects to be amazing, on budget, and on time.

Eric Druckenmiller

Founder & CEO, Knight & Knave

Their dedication to quality and attention to detail make them stand out.

Joshua Rex

Co-Founder, CRW

They understood our vision and made a significant contribution to refining our concept.

Kimberley Puchois

CEO, MuseMuse.app

They worked very fast and were very responsive to any changes needed.

Dori Dagher

President, Atomes Bio

Their collaborative culture and emphasis on continuous improvement fostered a dynamic and motivating environment.

Matt Tabor

Founder & CEO, Pitchsafe

If you’re building an app, work with Calda. As a first-time app founder, I felt supported the whole way. The thing I appreciated the most was how they mapped the whole process for me and really translated my vision into a beautiful app.

Jose Supico

Founder & CEO, Superplan

Calda doesn't wait for perfect specs; they get stuck in, figure things out, and keep moving.

Carl Swanson

CEO, Analog Labs LLC

Calda's design and technical quality are equally strong. The team is incredibly responsive and has delivered according to the agreed-upon milestones.

Matej Ivanetic

Founder & CEO, Recap

They care about our product and suggest ideas that I didn't even ask for, and that helps a lot!

Chris Putsch

Founder & CEO, Subseven

Calda has built what we wanted. They always hit deadlines and deliver high-quality goods.

Andrew Oehler

Co-Founder, Superdex

Calda did a great job and fully met our expectations throughout the project.

Akal Sahai Khalsa

CEO & Founder, BrightStar Live Events, LLC

Their responsiveness, problem-solving mindset, and ability to adapt to evolving requirements set them apart.

What types of apps do you build with FlutterFlow?

We design and develop native iOS and Android applications for the Apple App Store and Google Play, as well as responsive web applications, SaaS platforms, and internal business tools. Our FlutterFlow projects range from focused startup MVPs to complex production applications with multiple user roles, payments, AI features, custom workflows, and third-party integrations.

What is Rapid App Development?

Rapid App Development is our approach to building and launching applications faster than traditional development methods. By combining FlutterFlow with experienced developers, reusable internal systems, and carefully selected AI-assisted tools, we can significantly reduce development time without compromising product quality. Depending on the project's complexity, a focused MVP can often be delivered within weeks rather than months.

Will I own my FlutterFlow project and source code?

Yes. You retain ownership of the FlutterFlow project, exported Flutter source code, backend, data, accounts, designs, and intellectual property created for your application. Your product remains transferable, and another Flutter or FlutterFlow development team can continue the work in the future without restriction.

Do you handle UX/UI design as part of development?

Yes. Our in-house UX/UI team handles the full design process, including user journeys, wireframes, interactive prototypes, interface design, and design testing. Every interface is designed specifically for your product and brand. We do not rely on generic FlutterFlow templates or AI-generated designs.

Can you take over an existing FlutterFlow project?

Yes. We can review an unfinished, underperforming, or already launched FlutterFlow application and continue its development. We assess the project structure, code quality, backend configuration, security, performance, and technical debt before recommending the best next steps. This includes projects created by another agency, freelancer, internal team, or with AI-assisted tools.

Do you provide post-launch maintenance and updates?

Yes. We offer ongoing support for bug fixes, performance improvements, platform updates, and new feature development. Every application includes an initial post-launch support period. After that, we can continue supporting the product through a maintenance plan, development retainer, or separately agreed development phases.

Can you work with my existing development team?

Yes. We can work as an extension of your internal team or collaborate with existing developers, designers, and technical partners. We can take responsibility for specific features, increase delivery capacity, provide senior FlutterFlow expertise, review existing work, or support your team during demanding development periods.

Do you work on a fixed-price or hourly basis?

We support both fixed-price and hourly engagements. For clearly defined new projects, we generally recommend a fixed project price because it provides clarity around scope, timeline, deliverables, and budget. Hourly retainers are often better suited to existing products, ongoing development, maintenance, or projects with evolving priorities.

Can FlutterFlow be used for scalable, production-grade applications?

Yes. FlutterFlow generates exportable Flutter code and can be used to build secure, maintainable, and production-ready applications for iOS, Android, and the web. We combine FlutterFlow with technologies such as Supabase, Firebase, custom APIs, and server-side services to support complex applications and future growth. Scalability depends on the complete architecture, not FlutterFlow alone, so we design the frontend, backend, database, and integrations together.

Can you build custom functionality in FlutterFlow?

Yes. We are not limited to FlutterFlow's standard components and built-in functionality. We can develop custom widgets, actions, functions, API integrations, backend logic, and platform-specific features. Where necessary, we can also extend the exported application directly using Flutter and Dart.

Can FlutterFlow integrate with third-party systems and APIs?

Yes. We regularly integrate FlutterFlow applications with payment providers, CRMs, ERPs, analytics platforms, AI services, authentication providers, healthcare systems, and custom APIs. Where a direct integration is not available, we can create custom API connections, server-side functions, middleware, or backend services.

How do you ensure code quality and performance?

We follow structured development and QA processes throughout the project. This includes architecture reviews, reusable component standards, database and API optimisation, device testing, permission testing, performance validation, and quality assurance before launch. Custom code is kept structured and documented so the application can be maintained and extended by another qualified development team.

What happens if FlutterFlow cannot support a required feature?

We first assess whether the requirement can be delivered through custom FlutterFlow code, a backend function, an API integration, or a custom Flutter component. Because FlutterFlow generates exportable Flutter code, we can also extend the application directly in Flutter when necessary. If FlutterFlow is not the right choice for a critical part of the product, we will recommend a different technical approach rather than forcing the requirement into the platform.

Can a FlutterFlow application be continued outside FlutterFlow?

Yes. FlutterFlow applications can be exported as standard Flutter code. This means the application can later be continued directly in Flutter, maintained by another Flutter development team, or extended beyond FlutterFlow where required. We also keep client accounts, backend environments, and documentation accessible to avoid unnecessary platform or agency dependency.

Do you use AI in the FlutterFlow development process?

We use AI-assisted tools selectively for tasks such as rapid prototyping, documentation, code support, and internal development efficiency. All architecture, technical decisions, custom development, UX/UI design, security, and quality assurance remain human-led. AI supports our team, but our developers and designers remain responsible for the quality and maintainability of the final product.

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Clutch rating with starts of 4.9
The best time to build for the future was yesterday. The second best is now.