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CaldašŸ™ is an award-winning mobile and web app development studio and theĀ #1 FlutterFlow Agency of the Year 2025 & 2026 as well as FlutterFlow App Design of the Year 2024 & 2026. We design and build high-quality, scalable applications for startups and established companies across the USA, Europe, and the UAE.Ā 

We don’t just move fast. We build with precision: clean architecture, reliable backends, and products users genuinely enjoy.

Our Work

  • Min project size
    $10,000+
  • Hourly rate
    $50 - $99 / hr
  • Employees
    10 - 49
  • Locations
    Ljubljana, Slovenia
  • Year founded
    Founded 2022

1 Locations

  • Ljubljana , Slovenia

Select Focus Area
Application Platforms
Other app platform
100%
Low Code Development
No Code Development
Xano
35%
Frameworks and CMS
Programming & Scripting
Python
30%
SQL
20%
HTML5
10%
Typescript
10%
Industries
Information technology
100%
Clients
Midmarket ($10M - $1B)
50%
Enterprise (>$1B)
30%
Small Business (<$10M)
20%

Pricing Snapshot

Min. project size $10,000+
Avg. hourly rate $50 - $99 /hr
Rating for cost 4.9 /5

What Clients Have Said

Calda offers competitive pricing, fitting various budgets while delivering high-quality services. Clients appreciate their value for cost, timely delivery, and responsiveness. Team sizes range from 2-10 members, ensuring personalized attention across projects.

This summary is based on verified Clutch reviews.

Most Common Project Size

$10,000 - $49,999 based on 11 reviews
< $10,000 $10,000 - $49,999 $50,000 - $199,999 > $200,000

Select a service to see pricing information

Highly Rated Similar Providers

Calda Review Insights

Overall Review Rating

4.9
  • Quality 4.9
  • Schedule 4.8
  • Cost 4.9
  • Willing to Refer 4.9

Top Mentions

Review Highlights

  • Strong Project Management Skills

    Clients consistently commend Calda for their effective project management. They deliver projects on time, maintain clear communication, and are responsive to client needs, ensuring that projects stay on track and within budget.

  • Areas for Improvement in Communication Detail

    While generally praised for communication, one client suggested that Calda could improve the level of detail in their communications. This feedback indicates an area where Calda could enhance their service.

  • Excellence in App Development

    Calda has been repeatedly praised for their ability to deliver high-quality mobile applications tailored to specific client needs. Clients from various industries have highlighted their proficiency in app development, UI/UX design, and backend integration, often exceeding expectations.

  • Efficient and Budget-Friendly Solutions

    Calda is recognized for providing good value for cost, delivering efficient solutions that fit within client budgets. Their pricing and cost-effectiveness are frequently mentioned as reasons for choosing their services.

  • Positive Client Feedback and Results

    Calda's work often results in positive client feedback, with measurable outcomes such as successful app launches, user satisfaction, and increased business profitability. Clients express satisfaction with the final products delivered.

  • Effective Communication and Responsiveness

    Calda's team is highly communicative, using virtual meetings, emails, and messaging apps to keep clients informed. They are praised for their responsiveness and ability to address client concerns promptly.

Calda Reviews

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Mobile App Development for Productivity-Focused Products Co

  • Mobile App Development
  • iPhone iOS App Development
    +3
  • Confidential
  • May 2025 - Ongoing
5.0
Quality
5.0
Schedule
4.5
Cost
5.0
Willing to Refer
4.5

"Calda's design and technical quality are equally strong."

Mar 30, 2026
CEO, Analog Labs LLC
Carl Swanson
Verified
  • Consumer products & services
  • San Francisco, California
  • 1-10 Employees
  • Online Review
  • Verified

Calda has provided mobile app development services for a productivity-focused products company. The team handled UX/UI design, backend integration, paywall integration, and push notification setup.

AI Development for Financial Services Co

  • AI Development
  • Machine Learning
    +1
  • Confidential
  • Jan. 2025 - Ongoing
5.0
Quality
5.0
Schedule
5.0
Cost
5.0
Willing to Refer
5.0

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

Jun 24, 2025
Founder & CEO, Superplan
Jose Supico
Verified
  • Financial services
  • London, England
  • 1-10 Employees
  • Online Review
  • Verified

Calda has been helping a financial services company with FlutterFlow development, backend development, and AI integration. The team has handled an end-to-end platform for financial advisors.

Mobile App Dev & UX/UI Design for Sports Technology Company

  • Custom Software Development Mobile App Development UX/UI Design
  • $10,000 to $49,999
  • Nov. 2024 - Feb. 2025
5.0
Quality
5.0
Schedule
5.0
Cost
5.0
Willing to Refer
5.0

"They communicated daily and were available at almost any time to deal with changes."

Feb 7, 2025
Co-Founder, Sports Technology Company
Matthew Tabor
  • Sports
  • Houston, Texas
  • 1-10 Employees
  • Online Review

Calda designed and developed the initial version of a sports technology company's mobile app.

Low Code Mobile App Dev & Design for Social Media Startup

  • Low/No Code Development Mobile App Development UX/UI Design
  • FlutterFlow
    +3
  • Confidential
  • Mar. - Oct. 2024
5.0
Quality
5.0
Schedule
5.0
Cost
5.0
Willing to Refer
5.0

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

Nov 3, 2024
Co-Founder, CRW
Joshua Rex
Verified
  • Other industries
  • Australia
  • 1-10 Employees
  • Online Review
  • Verified

Calda developed and designed a mobile app for a social media startup. The team built the app for Android and iOS, performed low-code and custom-code development, and integrated several APIs.

Social Media App Dev for Bio-Pesticides Company

  • Custom Software Development Graphic Design
  • Brochure & Pamphlet Design
  • Confidential
  • Oct. 2023 - Aug. 2024
5.0
Quality
5.0
Schedule
5.0
Cost
5.0
Willing to Refer
5.0

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

Aug 2, 2024
President, Atomes Bio
Dori Dagher
  • Other industries
  • Montreal, Quebec
  • 51-200 Employees
  • Online Review

A bio-pesticides company hired Calda to build a social media app from scratch. The team also worked on building a geo-location feature.

Mobile App Development for Nonprofit Organization

  • Mobile App Development
  • FlutterFlow
    +5
  • $10,000 to $49,999
  • Feb. - July 2024
5.0
Quality
5.0
Schedule
5.0
Cost
5.0
Willing to Refer
5.0

"Calda's proficiency in engineering custom-built apps helped propel our nonprofit to the forefront in the personal, professional, and spiritual leadership development sector."

Jul 9, 2024
Executive, ChaplainCare LLC
Anonymous
Verified
  • Other industries
  • Arlington, Tennessee
  • 1-10 Employees
  • Online Review
  • Verified

Calda provided engineering and backend support for a nonprofit organization's mobile app. Their work involved data modeling, UI/UX modifications, database setup, FlutterFlow development, and testing.

Mobile App Development for Medical Platform

  • Mobile App Development
  • React Native
  • Confidential
  • Jan. - Nov. 2023
5.0
Quality
4.0
Schedule
5.0
Cost
4.0
Willing to Refer
5.0
"Calda always took the time to troubleshoot and explain issues to us in person if needed. We never felt left alone."
Nov 7, 2023
Co-Founder & CPTO, Medical Platform
Thanh Schrader-Nguyen
Verified
  • Medical
  • Berlin, Germany
  • 1-10 Employees
  • Online Review
  • Verified

A medical platform hired Calda to build their MVP. The team maintained an alpha app based on BravoStudio and Xano, working on frontend development, testing, database formation, and more.

Figma App Design for Shark Forecasting Platform

  • Mobile App Development UX/UI Design
  • Xano
  • Less than $10,000
  • June - July 2023
5.0
Quality
5.0
Schedule
5.0
Cost
5.0
Willing to Refer
5.0

"Their experience, quality work, and willingness to help were highly appreciated."

Jul 26, 2023
Founder, SafeWaters.AI
Evan Valenti
Verified
  • Other industries
  • Boston, Massachusetts
  • 1-10 Employees
  • Online Review
  • Verified

Calda was hired to improve the Figma-based designs of a shark forecasting platform. The team modernized the designs to match Apple and Google's requirements and provided further development support.

UI/UX Design & Mobile App Development for E-Commerce Company

  • Custom Software Development Mobile App Development UX/UI Design Web Development
  • Other app platform
  • Confidential
  • June - July 2023
5.0
Quality
5.0
Schedule
5.0
Cost
5.0
Willing to Refer
5.0

"Calda's service was perfect."

Jul 12, 2023
CEO, E-Commerce Company
Anonymous
  • eCommerce
  • Paris, France
  • 1-10 Employees
  • Online Review

Calda provided development services for an e-commerce company. The team created a customer portal management system on the client's mobile application.

Mobile App Dev for Museum

  • Application Testing Custom Software Development Mobile App Development Other Application Development
  • Other mobile OS
  • Confidential
  • Feb. - June 2023
5.0
Quality
5.0
Schedule
5.0
Cost
5.0
Willing to Refer
5.0

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

Jun 8, 2023
CEO, MuseMuse.app
Kimberley Puchois
Verified
  • Education
  • London, England
  • 1-10 Employees
  • Online Review
  • Verified

Calda provided web development services for the museum. They built an MVP version of a cross-museum guide app, including UX design, Figma database structure, API bridge structure, and data binding.

Showing 11-20 of 24 Reviews

Locations (1)

Gospodinjska ulica 8 LjubljanaSlovenia 1000

16 - 20

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