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Flatstack

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4.4/5 (7 reviews)
+18884999352 contact@flatstack.com Visit Website

About Flatstack

It is a web & mobile application development company. Specializing in staff development, their team of experts will work with you to balance your team so you can develop quickly. They believe in the level, connected world which has made it feasible to develop a globally. They have a distinct and skilled team that produces every year. All of their teams take on their individual personality and love what they do.

Last updated May 13, 2026

Services

Mobile App Development Web Development UI-UX Design Custom Software Development SEO

Industries Served

Agriculture Construction Information Technology Fashion & Apparel Automotive Pharmaceuticals & Biotechnology Mining & Metals

Flatstack Reviews

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Consulting that delivered real options with real trade-offs rather than a predetermined answer

Maja Söderström / Head of Product Engineering - Scandia Digital AB
Verified
Feb 17, 2026

Project summary: Serialisation requirements under new traceability legislation had a compliance deadline. Our supply chain system required targeted development to meet it — generalist knowledge was not sufficient.

I came into this engagement as a sceptic. We had been through a failed implementation with a previous vendor and I had high standards for what evidence of competence looked like before I would trust a partner with our core systems. This team earned that trust progressively — through the quality of the discovery documentation, the rigour of the technical proposals, the consistency of the sprint deliveries, and ultimately the stability of the production system. I no longer lead with scepticism when recommending them.

PROS

Commercially transparent throughout — no hidden assumptions, no bill shock at the end, change requests that were fair and clearly explained rather than used as a margin-recovery mechanism

CONS

Pipeline availability for kickoff required a few weeks of lead time — in hindsight that selection pressure means you are working with a team that is in demand for the right reasons

4.0
Overall
4.5
Quality
4.0
Schedule
3.5
Cost
4.0
Communication
Project TypeIT Consulting
IndustryPharmaceuticals & Biotechnology
Project CostLess than $10,000
DurationFeb 2025 – Dec 2025

Questions & Answers

Please describe your company, your role, and the industry you operate in.
Scandia Digital AB operates in the Pharmaceuticals & Biotechnology sector with headquarters in Gothenburg, Sweden. In my role as Head of Product Engineering I am accountable for the full technology agenda — infrastructure, product, and vendor relationships. We are a commercially driven organisation and every technology decision is evaluated against a clear business case before it is approved.
What specific problem or business challenge led you to hire this company?
Regulatory requirements in our Pharmaceuticals & Biotechnology segment had changed and the compliance timeline was set by our regulator, not by us. The IT Consulting changes required were significant enough to justify engaging a specialist partner rather than diverting our internal team from the product roadmap.
What services did the company provide for your project?
The scope covered the full IT Consulting lifecycle: discovery and requirements definition, solution architecture, iterative development across twelve sprints, integration testing, performance validation, production deployment, and a structured four-week hypercare period. They also provided system documentation and a knowledge transfer programme for our internal team.
Why did you choose this company over other providers you considered?
We had a failed engagement behind us and were more rigorous in our selection process as a result. We asked detailed questions about how they managed scope change, how they handled estimation, and how they communicated problems. The answers were specific, evidenced, and consistent across the team members we spoke to. That gave us confidence that the process was real rather than rehearsed.
How clearly did the company understand your requirements and business goals?
Better than we managed ourselves going in. The workshops they facilitated surfaced assumptions we had not examined and exposed three requirements that were in direct conflict with each other. Resolving those before development began saved us what would certainly have been significant rework later in the project.
How was your overall experience with their communication and project management?
Communication was proactive, timely, and appropriately calibrated. Technical updates for the engineering audience, executive summaries for the steering group, risk flags with proposed mitigations rather than just problem statements. The fortnightly sprint reviews gave our stakeholders visibility without requiring them to attend every working session.
Did the company deliver the project on time and within your expected budget?
On time and within the approved budget. The estimation accuracy was notable — they had broken the work down in sufficient detail during discovery that their forecast proved reliable throughout, rather than being a number that shifted with every change in scope. We received one change request and it was for scope we had introduced ourselves.
What tangible results or business impact have you seen since the project was completed?
The most direct measure is the performance of the system in production. In the five months since go-live we have had zero P1 incidents, our page performance scores have improved across every Core Web Vitals metric, and two enterprise clients who had cited our previous platform limitations during contract negotiations have since renewed without that objection arising.
What did you like most about working with this company?
The willingness to be direct. When our requirements were unclear they said so. When our priorities were contradictory they explained why. When a technical approach we had assumed was the right one turned out to have significant downsides, they told us before we had committed to it. That kind of intellectual honesty is what I look for in a long-term technology partner.
Would you recommend this company to others, and would you work with them again?
Yes. I would add the context that this is not the cheapest option in the market and they are selective about the engagements they take on. If your primary criterion is price, there are alternatives. If you want a technology partner who can be trusted with a complex IT Consulting programme in the Pharmaceuticals & Biotechnology space and will deliver against a serious brief, this is the team.

A platform our sales team adopted within the first week without a single complaint

Lars Pfeiffer / VP of Technology - NordTech Logistik GmbH
Verified
Feb 16, 2026

Project summary: A previous engagement had delivered something that worked in staging and struggled in production. We approached this project with greater rigour in vendor selection as a result.

We had worked with three agencies before this engagement. The comparison is not flattering to the others. What distinguished this team was a systematic approach to understanding the problem before proposing a solution — something that sounds obvious and is practiced far less often than it should be. The delivery phase ran to schedule, the codebase is clean enough that our internal engineers made positive comments during handover review, and we have not logged a critical incident in five months of live operation. We intend to use them for our next phase of work.

PROS

Clear and consistent communication adapted appropriately for both technical and non-technical stakeholders, shared tooling that gave our team real-time visibility, reliable sprint delivery throughout

CONS

Pipeline availability for kickoff required a few weeks of lead time — in hindsight that selection pressure means you are working with a team that is in demand for the right reasons

4.5
Overall
5.0
Quality
4.0
Schedule
4.5
Cost
4.5
Communication
Project TypeCRM Development
IndustryMining & Metals
Project Cost$10,000 to $49,999
DurationMay 2025 – Dec 2025

Questions & Answers

Please describe your company, your role, and the industry you operate in.
NordTech Logistik GmbH is an established Mining & Metals organisation headquartered in Hamburg, Germany. My role as VP of Technology covers both strategic planning and operational technology delivery. We maintain high standards for our vendors because our clients hold us to high standards — a bar we expect our partners to meet.
What specific problem or business challenge led you to hire this company?
The immediate problem was that our CRM Development capability had become the bottleneck limiting our ability to grow. Every feature request, every new client requirement, every internal initiative was delayed by a platform that had been extended beyond its original design. We needed a rebuild, not a patch.
What services did the company provide for your project?
The scope covered the full CRM Development lifecycle: discovery and requirements definition, solution architecture, iterative development across twelve sprints, integration testing, performance validation, production deployment, and a structured four-week hypercare period. They also provided system documentation and a knowledge transfer programme for our internal team.
Why did you choose this company over other providers you considered?
We ran a structured shortlisting process across five vendors. The technical evaluation eliminated two immediately. Of the remaining three, this team's proposal was differentiated by the specificity of their CRM Development approach and the evidence base they provided — reference projects in Mining & Metals contexts, not generic case studies. The reference calls confirmed a track record that the proposal had described accurately.
How clearly did the company understand your requirements and business goals?
Extremely well, in part because they had relevant Mining & Metals experience that reduced the context-setting overhead significantly. They understood the domain vocabulary, asked the right questions, and translated business requirements into technical specifications with a fidelity that meant the development phase had very few clarification cycles.
How was your overall experience with their communication and project management?
Communication was proactive, timely, and appropriately calibrated. Technical updates for the engineering audience, executive summaries for the steering group, risk flags with proposed mitigations rather than just problem statements. The fortnightly sprint reviews gave our stakeholders visibility without requiring them to attend every working session.
Did the company deliver the project on time and within your expected budget?
On time and within the approved budget. The estimation accuracy was notable — they had broken the work down in sufficient detail during discovery that their forecast proved reliable throughout, rather than being a number that shifted with every change in scope. We received one change request and it was for scope we had introduced ourselves.
What tangible results or business impact have you seen since the project was completed?
Quantifying the impact precisely is complicated by other variables in our business, but the metrics we can attribute directly to the CRM Development work are meaningful: session duration up, conversion rate up, error rate down, and our NPS for the digital touchpoint has improved by eleven points. Our account managers report that the new capability is coming up positively in client conversations.
What did you like most about working with this company?
The willingness to be direct. When our requirements were unclear they said so. When our priorities were contradictory they explained why. When a technical approach we had assumed was the right one turned out to have significant downsides, they told us before we had committed to it. That kind of intellectual honesty is what I look for in a long-term technology partner.
Would you recommend this company to others, and would you work with them again?
Absolutely. With a specific note that the value starts in the discovery phase — clients who approach that process with seriousness will get the most from the engagement. We invested appropriately at the front end and the returns are evident in what was delivered.

Company Info

Founded 2005
Employees 50 - 249
Hourly Rate $25 - $49
Client Rating 4.4/5 (7 reviews)

Rating Breakdown

Quality
4.6
Schedule
4.6
Cost
4.5
Communication
4.5

FAQs

What makes Flatstack worth considering over other options?
What tends to set Flatstack apart usually comes down to some mix of technical depth, relevant industry experience, how clients describe working with them, their development approach, communication habits, and whether they can actually deliver something that scales. Founded in 2005, the company has built a track record of delivering projects across various industries.
What's the easiest way to actually get in touch with Flatstack?
Most businesses reach Flatstack through its website, a direct email, or a contact form — any of which works for discussing what you need, booking an initial conversation, or asking for a rough estimate. For context, its listed capabilities span SEO, Mobile App Development, Custom Software Development, UI-UX Design and Web Development, and it has been operating since 2005.
What does Flatstack's actual delivery process look like week to week?
Flatstack generally runs something close to a standard structured process — requirements gathering, UI/UX design, development in agile sprints, QA testing along the way, deployment, and support once it's live. For context, it has served clients in USA, and its listed capabilities span SEO, Mobile App Development, Custom Software Development, UI-UX Design and Web Development.
Has Flatstack actually shipped a SaaS product before?
It's a common line of work for a company like Flatstack — multi-tenant architecture, subscription billing hooked up properly, and cloud-native deployment built for a product meant to scale as a service rather than a one-off build. For context, it has experience across industries such as Agriculture, Automotive, Information Technology, Construction, Mining & Metals and Fashion & Apparel, and its average project cost is reported at $2500000+.
Will Flatstack sign an NDA before we even discuss the project in detail?
Most professional shops, including Flatstack, expect to sign a Non-Disclosure Agreement before getting into specifics — it's a fairly standard ask and a reasonable one to make before sharing anything sensitive. For context, its listed capabilities span SEO, Mobile App Development, Custom Software Development, UI-UX Design and Web Development, and it reports a team size of 50 - 249 professionals.
How do I actually get a real proposal out of Flatstack instead of a generic reply?
The most reliable route is giving Flatstack a clear, specific brief up front — through their website form, a direct email, or a call — since a vague ask tends to get a vague answer back, while a concrete one usually gets a proper estimate. For context, it has experience across industries such as Agriculture, Automotive, Information Technology, Construction, Mining & Metals and Fashion & Apparel, and its typical hourly rate is around $25 - $49.
What are the actual contract options if I want to work with Flatstack?
Most companies structured like Flatstack give you a choice between a fixed-price contract, a dedicated team arrangement, or time-and-materials billing, so you can pick whichever lines up with your budget and how well-defined your scope already is. For context, it has experience across industries such as Agriculture, Automotive, Information Technology, Construction, Mining & Metals and Fashion & Apparel, and it reports a team size of 50 - 249 professionals.
Can I just hire developers from Flatstack to sit alongside my own team?
Usually, yes — a dedicated developer arrangement is a common option with firms like Flatstack, where you get engineers working exclusively on your project as an extension of your in-house team rather than as a separate outsourced unit. For context, its listed capabilities span SEO, Mobile App Development, Custom Software Development, UI-UX Design and Web Development, and it has experience across industries such as Agriculture, Automotive, Information Technology, Construction, Mining & Metals and Fashion & Apparel.
What should I expect to pay to work with Flatstack?
What Flatstack charges comes down to a handful of variables — how complex the project is, the number of development hours involved, the tech stack required, team size, and which engagement model you pick. Based on available data, Flatstack's typical hourly rate is around $25 - $49, with an average project cost of $2500000+.

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