We build apps for e-commerce,SaaS and operations teams,shipped in weeks.
We build MVPs, web apps, mobile apps and automations that remove manual work and connect the tools your team already uses. You get a clear scope, fixed price and full ownership of the code.
Industries we serve
When off-the-shelf tools stop fitting
Most clients come to us when the business is growing, but the systems are not keeping up. The team still copies data between tools, and simple work starts taking too much time.
Your team runs the business through spreadsheets
Manual exports, copied orders, invoice checks, weekly reports rebuilt from scratch. Each task looks small, but together they take hours and create mistakes that should not happen.
Your tools do not talk to each other
Your store, marketplace, ERP, CRM, accounting and warehouse each hold part of the truth. We connect them so orders, stock and reports update without someone moving data by hand.
Your current software almost fits
The standard tool covers 80% of the job. The important 20% still needs workarounds. That is where we build the missing dashboard, portal, workflow or integration around how your company actually works.
We build on and integrate with
and many more
What we delivered
Concrete results from real builds. Some clients are under NDA, so we show the industry and the outcome, without names.
No more manual data re-entry between the old and new ERP; supplier data enriched from public registries.
Allegro and Ovoko, thousands of items a day, part numbers validated by OCR.
OCR and validation of hundreds of documents a day, routed straight into the ERP.
AI assistant on the client's knowledge base, escalating to a human with full context.
AI generates designs, mockups and copy, and the system publishes at scale.
Zesply: a full project-management system, from kickoff to a working beta.
What we build
Practical systems for companies that need a working solution, not another tool to babysit.
E-commerce & Marketplace Systems
Sell on Allegro, eBay, Ovoko and your own store without operational chaos
Sell across channels without adding manual operations.
We build systems for product data, listings, stock, pricing, orders and marketplace edge cases. This is one of FlowBity's strongest areas, especially when off-the-shelf tools cannot handle how your process really works.
Sell across channels without adding manual operations.
Document Automation
Hundreds of invoices a day: extraction, validation, routing into your system
Up to 90% less manual data entry, no more silent errors
If someone copies data from invoices, orders or contracts by hand, we can usually automate it. The system reads the document, checks the data, flags suspicious cases and sends the result to your ERP, accounting tool or spreadsheet.
Up to 90% less manual data entry, no more silent errors
Internal Apps & Dashboards
One panel instead of five spreadsheets and manual status checks
Your team can see what is happening without asking for data in five places.
We build panels, portals and tools that organize daily work: approvals, reports, documents, customer data, statuses and tasks. We do not force a new process; we clean up the one that already exists.
Your team can see what is happening without asking for data in five places.
AI & Process Automation
AI where it saves time or reduces mistakes
Less manual work, without adding another experiment to the company.
We use AI for concrete jobs: reading documents, writing product descriptions, improving recommendations, answering simple customer questions or summarizing reports. Where the risk is higher, we keep a human approval step.
Less manual work, without adding another experiment to the company.
System Integrations
Data moves between systems without manual exports and copy-paste
Less re-keying, fewer mistakes and fresher data across the company.
We connect the systems that need to work together every day: ERP, CRM, marketplace, store, accounting, payments, warehouse, reports and email. The goal is simple: data lands where it should without manual workarounds.
Less re-keying, fewer mistakes and fresher data across the company.
AI Customer‑Service Assistant
Support bot: 40-60% deflection baseline, 70-80% on structured intents
Realistic deflection, full-context handoff to humans
Knowledge-base chatbots that actually deflect tickets. Realistic numbers: 40 to 60 percent of common questions handled baseline, scaling to 70 to 80 percent for structured intents (auth, order status, refunds within policy). Everything else escalates to a human with full conversation context. Honest caveat: garbage docs equal garbage answers, so the first week is usually spent cleaning your knowledge base. You end up with a better help center as a side effect.
Realistic deflection, full-context handoff to humans
MVP & SaaS Development
A first version you can show to customers and start selling
Test the idea without spending six months building in the dark.
We build first versions of SaaS products that are more than a clickable mockup. Login, payments, admin panels, deployment and the foundation for future development are included when the product needs them.
Test the idea without spending six months building in the dark.
App & Automation Audit
A written plan for what to build, connect or automate first
A clear, prioritized plan with payback estimates, credited toward implementation
Not sure whether you need a custom app, an integration, AI automation or a better existing tool? We walk through the process, point out the highest-value fixes and give you a written plan with priorities, scope and a cost estimate.
A clear, prioritized plan with payback estimates, credited toward implementation
Need something that does not fit this list? Send a one-paragraph message and we will reply within 24 hours with a yes, a no, or a referral. Tell us what you need
How we work
Four steps. First one is free. After that everything is written down in advance: fixed scope, fixed price, fixed timeline.
Discovery call (15 or 30 min)
Your pick on Cal.com. You describe the problem, we say if we can help and roughly what it would cost. No pitch deck, no commitment. If we cannot help, we usually know who can.
Written scope in 48 hours
Fixed price, fixed timeline, scope written out so there is no ambiguity later. You read it, push back, we revise once. Then you decide.
Weekly demos
Repo and access on day one. Every week you see what shipped. You can change scope (with price impact) or stop at the next milestone. No surprises at the end.
Launch plus 30 days support
Code goes live, documentation handed over. 30 days of post-launch support included. Extended support plans available (800 to 2,500 EUR per month, depending on scope) if you want them.
Selected work
A few examples of what we build: SaaS products, e-commerce systems, internal apps and automation.
sales channels connected in one system
Marketplace sales panel for auto parts
Problem: Used-parts sellers needed one place to manage Ovoko, Allegro and eBay instead of running separate manual workflows
Solution: We built a system for product listing, AI descriptions, photo-based part recognition, stock sync and marketplace publishing from one panel.
actions supported across the app
Project management SaaS
Problem: Small agencies needed their own system for projects, estimates, time tracking and client collaboration
Solution: Zesply brings task boards, budgets, time tracking, client portal, user roles and PL/EN support into one product.
conversion from Ceneo, plus 6% margin
Dynamic pricing for an e-commerce store
Problem: The store set prices by hand for thousands of products and lost margin and price-comparison ranking
Solution: The system recalculates product prices, monitors changes and alerts the team when business rules need review.
Start with an automation audit
In 2 weeks we map your processes, show you where you are losing hours and money, and hand you an implementation plan with a firm, fixed quote. No guessing before you commit.
Our guarantee: we find savings or the audit is free
If the audit does not surface real time or cost savings in your processes, you do not pay a cent for it. And once we move to implementation, we credit the full audit fee. The price we set after the audit is binding, and the build meets the agreed acceptance criteria or we fix it at no extra cost.
A paid audit, because serious companies do not buy automation blind. We take on the risk that the plan makes sense, which is why we credit its cost toward the implementation.
What it costs
Fixed price, written down after the audit. No hourly billing.
Automation audit
Process map, implementation plan and a firm quote. Credited toward the build.
Automation / integration
One process or wiring systems together: ERP, CRM, shop, marketplace.
AI support assistant
Chatbot or agent on your knowledge base, with human escalation.
App / dashboard / system
Dashboard, portal, web or mobile app, built to fit.
Custom SaaS / complex system
Full product: auth, payments, roles, integrations.
After launch, 30 days of support included; ongoing care €800 to €2,500 per month.
We take on a limited number of implementations each quarter, so every client gets our full attention.
Book your auditQuestions we get every week
Honest answers. If yours is not here, ask on the call.
Simple automation: 1 to 2 weeks. Most automation and chatbot work: 2 to 4 weeks. A custom app or dashboard: 4 to 8 weeks. A dedicated SaaS or complex system: 8 to 16 weeks. We give you a specific timeline at the end of the discovery call, before any contract.
Most projects land between 5,000 and 50,000 EUR fixed price. A simple single-process automation starts around 5,000 EUR. Complex systems (multi-channel e-commerce automation, AI agents, custom apps or SaaS) usually run 20,000 to 60,000 EUR. Consulting workshops are 1,500 to 3,000 EUR. We do not bill hourly because it creates the wrong incentives. Fixed price means we are paid for shipping a working result, not for hours logged.
No. Tell us what is not working: what your team does by hand, which tools do not connect, what product you want to launch or which process keeps breaking. We turn that into a practical scope, cost and set of options.
Every project includes 30 days of post-launch support. Critical issues get a response within 24 hours. Extended support contracts are available, usually 800 to 2,500 EUR per month depending on scope.
You get the code, documentation and deployment access, so you are not locked into one vendor. We can also stay on support with agreed response times. For larger projects, we bring in trusted specialists for design, QA or extra development while keeping technical responsibility on our side.
Usually no. We build around your existing stack. If a paid third-party service is needed (OpenAI API, Twilio, a specific email provider), we tell you the expected monthly cost before kickoff, so there are no surprises later.
Yes. We integrate with CRMs, accounting, project management, email, and almost anything with a REST API. We do not require you to switch platforms. If your current stack genuinely cannot do something we recommend a switch, we say so upfront.
We are a custom software studio with a strong automation and AI focus. We build full apps when you need a product, and automation when a process should run without manual work.
Yes. A useful app is rarely just screens. It often needs payments, CRM, ERP, marketplace, accounting, reporting or warehouse integrations. We design the app and the data flow together.
15 or 30 minutes, your pick on Cal.com, video. We ask about your business and the problem you are trying to solve. By the end you have a clearer picture of what would work, what would not, and a rough price range. No pitch deck, no commitment.
We guarantee everything we build matches the written scope document. If it does not, we fix it at no extra cost. We do not guarantee business outcomes (we cannot promise more deals or more revenue), because those depend on factors outside our control.
Projects under 3,000 EUR (use a Make.com or Zapier template instead). White-label resale of someone else's tool. Pure design work without development. Hourly time-and-materials engagements. Crypto and Web3.
Who owns the work
You work directly with the person responsible for delivery
You do not go through a sales layer that vanishes once the contract is signed. A senior scopes and owns the work, including the technical delivery, and we do not hand it down to juniors. Every project starts with a written scope and ends with documentation, source code and deployment access handed over.
Rafał Jasionowski · Founder & Lead Engineer
View LinkedInLet's talk about your project
Pick the 15 or 30-minute slot, or send a message. You leave with a clearer view of what would actually work, even if we end up not being the right fit.
Not ready for a full project? Start with a paid audit, fully credited toward implementation if you proceed.
Book your discovery call
15 or 30 minutes, your pick on Cal.com. We talk about the problem and you leave with a rough scope and price range. No commitment.