We invent, build, integrate and scale software

Our development company offers custom software, mobile, and web application solutions. Our firm provides exceptional professional services in strategy, user experience, design, and full-stack engineering to bring brilliant ideas into reality. We transform ambitious concepts into groundbreaking apps using Node, React, Electron, Python, C++, and other technologies.

Min project size
$1,000+
Hourly rate
Undisclosed
Employees
10 - 49
Locations
Flensburg, Germany
Year founded
Founded 2017

No have been added yet...

Pricing Snapshot

Min. project size $1,000+

Avg. hourly rate Undisclosed

Rating for cost 5 /5

What Clients Have Said

Softstack is noted for impressive pricing and value for cost, with projects typically around $20,000. Clients appreciate their responsiveness, professionalism, and ability to deliver on time, making them a competitive choice in the market.

This summary is based on verified Clutch reviews.

Most Common Project Size

$10,000 - $49,999 based on 3 reviews

< $10,000 $10,000 - $49,999 $50,000 - $199,999 > $200,000

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softstack Review Insights

Overall Review Rating

5.0

Quality 5.0
Schedule 5.0
Cost 5.0
Willing to Refer 5.0

Top Mentions

Review Highlights

Proficient in Blockchain Security

Softstack demonstrated expertise in blockchain security by performing thorough audits and assessments, identifying vulnerabilities, and providing clear recommendations. Clients appreciated their ability to enhance security and confidence before product launches.
Successful Vulnerability Identification

Softstack successfully identified medium and low-risk vulnerabilities in client projects, which were addressed effectively. This contributed to the overall success and security assurance of the projects.
Professional and Responsive Team

The Softstack team was praised for their professionalism, responsiveness, and punctuality. Clients highlighted their quick communication and ability to deliver projects on time, contributing to a positive experience.
Effective Project Management

Softstack's project management skills were commended. They maintained clear communication through virtual meetings and messaging apps, ensuring a smooth workflow and timely delivery of project milestones.
No Reported Areas for Improvement

Clients did not identify any significant areas for improvement, suggesting satisfaction with Softstack's services. The absence of constructive criticism highlights the company's ability to meet client expectations.

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softstack Reviews

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Cybersecurity
$10,000 to $49,999
November 2024

5.0

Quality: 5.0

Schedule: 5.0

Cost: 5.0

Willing to Refer: 5.0

"They delivered on time and were surprisingly responsive and professional."

Nov 7, 2025

Head of Business Development, Blockchain Software Company

Sindre Haugland

Other industries
Norway
201-500 Employees
Online Review
Verified

Softstack performed a comprehensive security assessment of a blockchain software company's new multi-purpose token standard. The team reviewed the architecture and code, checked for vulnerabilities, and more.

Softstack's efforts helped the client enhance their security and confidence in launching, marking the project's success. The team was responsive and professional throughout the process, and their pricing was competitive compared to other companies. They also delivered on time.

BACKGROUND

Introduce your business and what you do there.

I’m the head of business development at a high-speed blockchain network.

OPPORTUNITY / CHALLENGE

What challenge were you trying to address with softstack?

We hired softstack to independently assess the security of our new multi-purpose token standard before launch, identify any vulnerabilities early, and give our team and stakeholders confidence that the implementation was robust and ready for production.

SOLUTION

What was the scope of their involvement?

Softstack performed a comprehensive security assessment of our new multi-purpose token standard, including architecture and code review, checks for vulnerabilities and best practice alignment, and analysis of storage, efficiency, and functional correctness. The main deliverables were a detailed audit report with clearly classified findings and concrete recommendations, plus a final summary.

What is the team composition?

We worked with 2–3 teammates from softstack.

How did you come to work with softstack?

We found them through an online search. We chose them over other options because they had high ratings, good value for cost, and company values aligned with ours.

How much have you invested with them?

We spent around $20,000.

What is the status of this engagement?

We worked together in November 2024.

RESULTS & FEEDBACK

What evidence can you share that demonstrates the impact of the engagement?

We improved our security and ability to launch confidently. We spotted and fixed a couple of vulnerabilities. Other teams we engaged with didn’t find any findings, not even minor ones.

How did softstack perform from a project management standpoint?

They delivered on time and were surprisingly responsive and professional. We communicated via virtual meetings, emails, and messaging apps.

What did you find most impressive about them?

Their pricing compared to competitors was impressive.

Are there any areas they could improve?

There’s nothing they could have done better or differently.

RATINGS

5.0

Blockchain Cybersecurity
Less than $10,000
May 2025

5.0

Quality: 5.0

Schedule: 5.0

Cost: 5.0

Willing to Refer: 5.0

"I was impressed with their faster turnaround and attention to detail."

Oct 27, 2025

COO, Buddy Green

Eric Downes

Banks
London, England
51-200 Employees
Online Review

Softstack audited a blockchain company’s cross-chain DeFi protocol, focusing on core protocol and staking mechanisms to ensure security and reliability.

Softstack delivered thorough audits with precise findings and clear remediation guidance. The team was highly responsive, met deadlines, and provided valuable insights missed by other auditors. Communication was friendly and efficient, and their attention to detail and fast turnaround were notable.

The client submitted this review online.

BACKGROUND

Please describe your company and position.

I am the COO of Buddy Green

Describe what your company does in a single sentence.

Cross-chain DeFi protocol

OPPORTUNITY / CHALLENGE

What specific goals or objectives did you hire softstack to accomplish?

Auditing core protocol and staking mechanisms

SOLUTION

How did you find softstack?

Online Search

Why did you select softstack over others?

High ratings
Pricing fit our budget
Good value for cost
Company values aligned

How many teammates from softstack were assigned to this project?

2-5 Employees

Describe the scope of work in detail. Please include a summary of key deliverables.

Softstack delivered multiple audits on our Token Core Protocol and Staking Emissions with a level of rigor and collaboration that exceeded expectations. Findings were precise, impact focused, and paired with clear remediation guidance. The team was responsive, thorough in retesting, and proactive about hardening our upgrade and treasury controls. We shipped with confidence.

RESULTS & FEEDBACK

What were the measurable outcomes from the project that demonstrate progress or success?

Couple of findings the other auditor didn't catch.

Describe their project management. Did they deliver items on time? How did they respond to your needs?

yes, very responsive, delivering in timely manner and very friendly

What was your primary form of communication with softstack?

Virtual Meeting
Email or Messaging App

What did you find most impressive or unique about this company?

I was impressed with their faster turnaround and attention to detail.

Are there any areas for improvement or something softstack could have done differently?

None.

RATINGS

5.0

Blockchain Cybersecurity
$10,000 to $49,999
June 2025

5.0

Quality: 5.0

Schedule: 5.0

Cost: 5.0

Willing to Refer: 5.0

"Their professionalism and punctuality were impressive."

Oct 21, 2025

Executive, Yumo

Anonymous

Other industries
Serbia
11-50 Employees
Online Review
Verified

softstack provided blockchain development services for a crypto trading platform. The team audited smart contracts and off-chain infrastructure and reviewed on-chain withdrawal and deposit programs.

softstack successfully identified a couple of medium and low-risk findings, marking the project's success. The team was professional, responsive, and quick to turn around tasks. Moreover, their strong sense of professionalism and timeliness stood out in the partnership.

The client submitted this review online.

BACKGROUND

Please describe your company and position.

I am an Executive of Yumo

Describe what your company does in a single sentence.

decentralized perpetuals DEX for trading crypto derivatives with leverage

OPPORTUNITY / CHALLENGE

What specific goals or objectives did you hire softstack to accomplish?

off-chain infra + smart contract audit

SOLUTION

How did you find softstack?

Referral

Why did you select softstack over others?

High ratings
Pricing fit our budget
Great culture fit
Good value for cost

How many teammates from softstack were assigned to this project?

2-5 Employees

Describe the scope of work in detail. Please include a summary of key deliverables.

Review the on chain deposit and withdrawal programs plus the custody account that holds user assets.Verify conservation of funds, strict authorization, replay protection, rate limits, and safe upgrade controls.Stress test edge cases

RESULTS & FEEDBACK

What were the measurable outcomes from the project that demonstrate progress or success?

Couple of medium and low risk findings

Describe their project management. Did they deliver items on time? How did they respond to your needs?

Quick responses, fast turnaround, personal treatment

What was your primary form of communication with softstack?

Virtual Meeting
Email or Messaging App

What did you find most impressive or unique about this company?

Their professionalism and punctuality were impressive.

Are there any areas for improvement or something softstack could have done differently?

RATINGS

5.0

Showing 1-3 of 3 Reviews

Locations (1)

Schiffbrückstraße 8, 24937 Flensburg Flensburg, Germany 24937

10 - 15

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We invent, build, integrate and scale software

Pricing Snapshot

What Clients Have Said

Most Common Project Size

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Highly Rated Similar Providers

softstack Review Insights

Overall Review Rating

Top Mentions

Review Highlights

Proficient in Blockchain Security

Successful Vulnerability Identification

Professional and Responsive Team

Effective Project Management

No Reported Areas for Improvement

Reviews mentioning:

softstack Reviews

Cybersecurity for Blockchain Software Company

BACKGROUND

OPPORTUNITY / CHALLENGE

SOLUTION

RESULTS & FEEDBACK

RATINGS

DeFi Protocol Audit for Blockchain Company

BACKGROUND

OPPORTUNITY / CHALLENGE

SOLUTION

RESULTS & FEEDBACK

RATINGS

Blockchain Development for Crypto Trading Platform

BACKGROUND

OPPORTUNITY / CHALLENGE

SOLUTION

RESULTS & FEEDBACK

RATINGS

Locations (1)

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softstack

We invent, build, integrate and scale software

1 Locations

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Pricing Snapshot

What Clients Have Said

Most Common Project Size

Select a service to see pricing information

Highly Rated Similar Providers

Reviews

softstack Review Insights

Overall Review Rating

Top Mentions

Review Highlights

Proficient in Blockchain Security

Successful Vulnerability Identification

Professional and Responsive Team

Effective Project Management

No Reported Areas for Improvement

Reviews mentioning:

softstack Reviews

Cybersecurity for Blockchain Software Company

BACKGROUND

OPPORTUNITY / CHALLENGE

SOLUTION

RESULTS & FEEDBACK

RATINGS

DeFi Protocol Audit for Blockchain Company

BACKGROUND

OPPORTUNITY / CHALLENGE

SOLUTION

RESULTS & FEEDBACK

RATINGS

Blockchain Development for Crypto Trading Platform

BACKGROUND

OPPORTUNITY / CHALLENGE

SOLUTION

RESULTS & FEEDBACK

RATINGS

Location

Locations (1)

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