Fintech operator dashboard
Outcome: +38% retention in 60 days
KAYFSTORE is a small, senior studio delivering full-stack web development, game development, premium design and 1:1 strategy sessions for founders moving real revenue.
Tools & platforms we ship with
What we do
Four focused services. One team of senior engineers, designers and strategists. We pick projects carefully so every client gets founder-level attention.
Full-stack web apps, SaaS dashboards, marketing sites and e-commerce — built with Next.js, TypeScript and Tailwind. Performance, SEO and conversion baked in.
Custom gameplay systems, UI, multiplayer logic, and full indie titles for PC and web. We ship what you can actually launch.
Product UI/UX, brand identity, landing pages and marketing visuals. Designed for conversion, not just decoration.
1:1 consulting, architecture reviews, roadmap planning and growth strategy sessions for teams moving real revenue.
How we work
No mystery. No black boxes. You always know what we're doing, what's next, and what it costs.
Intro call, scope mapping, goal alignment. We only take projects we can genuinely win at.
UX flows, UI in Figma, technical architecture. You sign off before we write production code.
Milestone-based delivery with weekly updates. You pay per milestone, never blind.
Launch, monitor, iterate. We hand over documentation, access and training — no lock-in.
Why KAYFSTORE
We work the way we'd want a studio to work with us: clear scope, transparent pricing, protected payments, and a real person you can message at any step.
Every line of code and every pixel is shipped by a senior specialist. No outsourcing, no proxy contractors.
You pay per completed milestone via PayPal. Never upfront-in-full, never for work you haven't seen.
All payments run through PayPal. You're covered by PayPal Buyer Protection on every invoice.
Async-friendly, but never ghosted. Dedicated channel, weekly status, real humans on the other side.
Clients across EU, US, UK, LATAM and Asia. English-first communication, EUR / USD / GBP invoicing.
Full IP transfer on final payment. Clean handover — source, assets, credentials, documentation.
Selected work
Outcome: +38% retention in 60 days
Outcome: Shipped to Steam on schedule
Outcome: 2× paid conversion on landing
Outcome: Cut infra cost 41% in one quarter
Questions
Most of our clients ask the same things. Here are the honest answers — don't see yours? Just message us.
Every project is split into clear milestones. You pay per milestone via PayPal — typically a small deposit to start, then progress payments at agreed checkpoints, and a final payment on delivery. No upfront-in-full, no surprise invoices.
PayPal gives both sides strong buyer / seller protection, instant international payouts, and a dispute process we can stand behind. We optimise around it so clients feel safe sending four- or five-figure invoices.
You can. You are only charged for completed milestones and a fair pro-rata on work in progress. Pre-paid unused funds are refunded to your PayPal. Full details are in our Refund Policy.
You do. On final payment for a milestone, full IP for the custom work we produced for you transfers to you. We retain rights only to our internal reusable tooling, and only if you explicitly opt in we mention the project in our portfolio.
Yes, both mutual and one-way NDAs are standard for us. Most work we do is under NDA — that is why case studies on this page are anonymised.
Average reply time is under 24 hours, usually much faster within European business hours. Active projects get a dedicated channel (Slack, Discord, or email — your choice) with daily or weekly status depending on cadence.
A 90-minute focused call over Zoom or Google Meet. You send context in advance, we prepare, and you walk away with a written summary, specific recommendations, and next-step roadmap — not just vibes.
We fix it at no extra cost as long as it falls within the agreed scope. If the gap is bigger than that, we offer a clear path: revise scope, refund pro-rata, or both. Our goal is a happy client who comes back, not a PayPal dispute.
Still unsure? Send us a message — we reply fast.
Tell us about the project. We reply within 24 hours with an honest take on scope, timeline and budget — no sales theatre, no boilerplate decks.
Prefer a quick call? Link your calendar in the first message and we will propose slots that work for your timezone.