$25,000+
$30 - $49 / hr
10 - 49
SMBs
Estonia, Tallinn
2019
Within 2-3 weeks

At SDA, we specialize in developing custom software solutions for startups and established companies that transform the Mental Health & Wellness industry, as well as Healthcare, FinTech and EdTech.


Founded in December 2019, we gathered the best professionals and combined their knowledge and experience to create a powerful team that has already finished 100+ projects of different complexity.


We use the most modern stack of technologies and tools to build innovative SaaS solutions, online marketplaces and iOS/Android/Web applications that help our clients meet their goals and make a real difference.


Our Main Services:



  • Startup MVP Development

  • Enterprise Modernization

  • Dedicated Teams

  • Full-Cycle Software Development

  • Architecture & Design

  • No-Code Development


Our customers are our biggest value which we truly cherish throughout the whole collaboration period.



Feel free to contact us to get a quote for your project!

Techreviewer Score

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5.0

Client review platforms

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

5.0
(26 reviews)Clutch
3.7
(1 reviews)Trustpilot
5.0
(3 reviews)GoodFirms
4.6
(43 reviews)Google

AI Overview

Powered bytechreviewer AI
This company performance overview is based on AI analysis of 15 client reviews across 3 different review platforms. Read more about our methodology.
Last updated: October 2026

Performance snapshot

SDA presents a consistently strong performance profile across a broad range of services including custom software development, mobile app development, IT staff augmentation, and AI integration. Across 15 reviews spanning multiple platforms, ratings are uniformly high with no recorded negative feedback or areas for improvement. Recurring strengths include technical depth, compliance expertise, and responsive communication, though the absence of any critical commentary limits differentiated insight into risk areas.

Performance breakdown

Technical expertise
Strong

Reviewers consistently highlight deep technical capability across mobile, web, AI, cloud (AWS), and API development. Specific outcomes include HIPAA/GDPR compliance delivery, AI lead-qualification layer construction, and legacy system restoration within three days — all high-density evidence of technical strength.

Project management & delivery
Strong

Multiple reviewers confirm on-time, within-budget delivery, incremental shipping against production traffic, and structured milestone communication via daily reports. One review explicitly notes a project shipped on schedule despite shifting requirements, reinforcing consistent delivery discipline.

Communication & collaboration
Strong

Regular updates via Slack, Upwork, email, and virtual meetings are cited across numerous reviews. Clients in different geographies — UK, US, Estonia, Ukraine — report seamless availability and transparent progress tracking, indicating strong cross-timezone collaboration practices.

Reliability
Strong

SDA is described as a stable and dependable partner across both short engagements and long-term ongoing relationships. A legacy system was stabilized within three days, and multiple clients report zero disruption to live production environments during active development work.

Client satisfaction & outcomes
Strong

Quantified outcomes include customer engagement growth from 2% to 20%, paying customers increasing by 1.3x per month, significantly reduced manual document processing time, and a cleaner lead queue requiring far less manual triage — meeting the anchor review high-density threshold.

Best for

SDA is best suited for SMBs and software companies seeking reliable custom development, staff augmentation, or AI-powered feature integration — particularly in healthcare-compliance-sensitive or SaaS environments requiring secure, scalable infrastructure.

Clients info

SDA's client base spans information technology, advertising and marketing, healthcare-adjacent software, arts and entertainment, and fitness sectors. Clients are predominantly small to mid-sized businesses, with most falling in the 1–50 employee range. Project budgets typically range from under $10,000 to $199,999, with several engagements marked confidential. Primary industries represented include Information Technology & Software Development, Healthcare & Compliance (HIPAA/GDPR), Advertising & Marketing, Arts, Entertainment & Music, Fitness & Wellness. 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.

Review strength

Analysis is based on 15 reviews across three platforms. The majority of reviews were published between 2021 and 2022, with five more recent reviews from 2023 through mid-2026 confirming continued activity. Reviews older than three years should be weighted with caution relative to current capabilities. Review date range: Nov 5, 2021 - Sep 18, 2026.

Performance breakdown

Technical expertise
Strong

Reviewers consistently highlight deep technical capability across mobile, web, AI, cloud (AWS), and API development. Specific outcomes include HIPAA/GDPR compliance delivery, AI lead-qualification layer construction, and legacy system restoration within three days — all high-density evidence of technical strength.

Project management & delivery
Strong

Multiple reviewers confirm on-time, within-budget delivery, incremental shipping against production traffic, and structured milestone communication via daily reports. One review explicitly notes a project shipped on schedule despite shifting requirements, reinforcing consistent delivery discipline.

Communication & collaboration
Strong

Regular updates via Slack, Upwork, email, and virtual meetings are cited across numerous reviews. Clients in different geographies — UK, US, Estonia, Ukraine — report seamless availability and transparent progress tracking, indicating strong cross-timezone collaboration practices.

Reliability
Strong

SDA is described as a stable and dependable partner across both short engagements and long-term ongoing relationships. A legacy system was stabilized within three days, and multiple clients report zero disruption to live production environments during active development work.

Client satisfaction & outcomes
Strong

Quantified outcomes include customer engagement growth from 2% to 20%, paying customers increasing by 1.3x per month, significantly reduced manual document processing time, and a cleaner lead queue requiring far less manual triage — meeting the anchor review high-density threshold.

Location and contacts

Estonia, Tallinn
Tallinn

Major clients

Samata Health
Kyle
Rise