$10,000+
$50 - $99 / hr
10 - 49
Startups
Poland, Łódź
2015
Within 2-3 weeks
Creating world-class mobile products

FDT has experience in various project types: Lifestyle, Social Network, Sport, Internet of Things (BLE), Utilities, Fintech, Healthcare, FMCG, Insurance. Mobile app development: Years of experience and cooperation with various international partners taught us how to deliver top-notch mobile applications. Our solutions are based mainly on Swift, Kotlin and Dart, which allows us to tailor the product right to your needs. For mobile app development we use native app development, flutter and cross-platform solutions. Web development: We develop web solutions that are scalable and efficient. Using the latest technologies, such as Node.js, Ruby on Rails, React and Angular provides the highest quality that satisfies both our partners and the users. We're provide with cloud-based solutions, frontend and backend development. UI/UX Design: We believe good user experience is as important as advanced development, since it shapes the whole interaction with a product. For those who already have an idea and for the inexperienced we provide ongoing UI/UX design, but also constant iterative design improvements for those who would like to take their products to another level. We also handle project wireframing and high-fidelity clickable prototypes.

Creating world-class mobile products

Techreviewer rating

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4.9

Client review platforms

The company's reputation is reflected through ratings and reviews from different review websites:

4.9
(38 reviews)Clutch
4.3
(1 reviews)DesignRush
5.0
(25 reviews)Google

AI Overview

Powered bytechreviewer AI
This company performance overview is based on AI analysis of 43 client reviews across 2 different review platforms. Read more about our methodology.
Last updated: April 2026

Performance snapshot

FiveDotTwelve is a mobile and web development studio with a strong track record across diverse industries, demonstrating consistent delivery of iOS, Android, and Flutter-based products. The vendor's rating profile is predominantly Strong across all five evaluation categories, anchored by multiple high-density reviews containing quantified outcomes, named technologies, and timeline references. Recurring themes include reliable on-time delivery, transparent communication, and measurable launch results such as download milestones and user ratings. Minor concerns surface occasionally around estimation accuracy and the pace of minor change requests, but these are isolated and do not represent a systemic pattern.

Performance breakdown

Technical expertise
Strong

Multiple reviews cite Flutter, PHP, Symfony, AWS, and AI-driven features as delivered technologies. Quantified outcomes include zero defects on 2,000 test units and computer vision successfully transferred to device, confirming deep, modern technical capability across mobile and web stacks.

Project management & delivery
Strong

On-time delivery is a near-universal theme, with Agile, Jira, and Confluence cited as standard tooling. Two reviews note occasional difficulty with time estimates and speed on minor changes, but the broader evidence of consistent milestone adherence across 30+ engagements confirms strong delivery discipline.

Communication & collaboration
Strong

Clients consistently praise responsiveness via Slack, email, and virtual meetings across multiple time zones. Transparency about costs and deadlines is highlighted repeatedly, and one review notes short feedback loops were established to improve efficiency, reflecting a mature collaboration model.

Reliability
Strong

Multiple anchor reviews report stable, near-bug-free launches: a parenting app rated 4.9 with 3,000 downloads in month one, a football club app with 5,000 downloads in 24 hours, and IoT testing across 2,000 units with zero issues detected, demonstrating consistent product stability at launch.

Client satisfaction & outcomes
Strong

Tangible business outcomes are well documented, including a 20% increase in museum group bookings, 20,000 disability app downloads in first phase, and a 4.7-rated Android app with 7,000+ users. Willingness-to-refer sub-ratings are predominantly 5.0, reflecting high client loyalty and perceived ROI.

Best for

FiveDotTwelve is best suited for startups and SMEs seeking Flutter-first mobile app development, cross-platform builds, and UX/UI design. They are particularly well-positioned for clients requiring a collaborative, communicative partner from MVP through post-launch support.

Clients info

FiveDotTwelve predominantly serves startups and small businesses across health, fitness, education, fintech, sports, and social impact sectors. Most clients are small companies with 1–50 employees, with project budgets typically ranging from under $10,000 to $199,999, though a handful of larger engagements fall in the $200,000–$999,999 range. Primary industries represented include Health & Wellness, Education & EdTech, Sports & Fitness, Financial Services & Fintech, Advertising & Marketing, Information Technology. Typical client size bands include 1–10 Employees, 11–50 Employees, 51–200 Employees. Common project budget ranges include Less than $10,000, $10,000 to $49,999, $50,000 to $199,999, $200,000 to $999,999.

Review strength

The assessment is based on 43 reviews drawn from 2 platforms, spanning from 2018 to 2026, with the majority of reviews published within the last three years. The review base is robust in volume and recency, providing a reliable basis for evaluation. Review date range: 2018-03-19 - 2026-03-26.

Performance breakdown

Technical expertise
Strong

Multiple reviews cite Flutter, PHP, Symfony, AWS, and AI-driven features as delivered technologies. Quantified outcomes include zero defects on 2,000 test units and computer vision successfully transferred to device, confirming deep, modern technical capability across mobile and web stacks.

Project management & delivery
Strong

On-time delivery is a near-universal theme, with Agile, Jira, and Confluence cited as standard tooling. Two reviews note occasional difficulty with time estimates and speed on minor changes, but the broader evidence of consistent milestone adherence across 30+ engagements confirms strong delivery discipline.

Communication & collaboration
Strong

Clients consistently praise responsiveness via Slack, email, and virtual meetings across multiple time zones. Transparency about costs and deadlines is highlighted repeatedly, and one review notes short feedback loops were established to improve efficiency, reflecting a mature collaboration model.

Reliability
Strong

Multiple anchor reviews report stable, near-bug-free launches: a parenting app rated 4.9 with 3,000 downloads in month one, a football club app with 5,000 downloads in 24 hours, and IoT testing across 2,000 units with zero issues detected, demonstrating consistent product stability at launch.

Client satisfaction & outcomes
Strong

Tangible business outcomes are well documented, including a 20% increase in museum group bookings, 20,000 disability app downloads in first phase, and a 4.7-rated Android app with 7,000+ users. Willingness-to-refer sub-ratings are predominantly 5.0, reflecting high client loyalty and perceived ROI.

Location and contacts

Poland, Łódź
Gdańska 91/93 A
90-613
+48 693 309 429

Major clients

APSYS Management
Onoco
Knauf
LETHE
Widzew Łódź
ParrotOne
Totalbet
PySENSE
Sober Grid