THE YESK ADVANTAGE
Why Build Your Prototype with Us?
Agency projects often take months and cost tens of thousands. We deliver working software in short, fixed-price sprints — so you learn fast and risk little.
Days, Not Months
Launch in 3 Days to 3 Weeks
Put a working product in front of customers and investors while competitors are still writing specs.
Fraction of Agency Cost
Startup-Friendly Pricing
We use AI tools to skip repetitive work, so you pay for real features — not for hours spent on boilerplate.
Built to Grow
No Throwaway Code
Your prototype isn't a mockup you'll have to rebuild. It's real code on proven technology that can grow into your full product.
No Surprises
Fixed Scope & Price
Before we start, we agree in writing exactly what you'll get and what it costs. Then we deliver exactly that — on time, with no surprise invoices.
Simple, Fixed Pricing
Pick the stage you're at. The final price within each range depends on the number of screens and features — you get an exact, fixed quote before any work starts.
If we don't deliver what we agreed, you don't pay.
You review and approve each milestone. If the final result doesn't match the agreed scope, you get a full refund.
Concept & Pitch Prototype
A clickable demo of your idea to show investors and check whether customers actually want it.
One-time sprint
What you get
- Up to 5 screens designed for mobile & desktop
- Clickable demo you can share with a link
- Working sign-up form to collect early interest
- Instant sign-up alerts by email, messenger or Google Sheets
- Domain & hosting set up for you (or on your own account)
- Roadmap for turning the prototype into a full product
Functional Web MVP
A real web app people can sign up for and use — ready for your first customers.
One-time sprint
Everything in Concept, plus:
- A complete web app your users can sign up for and use
- Login with Google or email
- 1–2 core features that save real data
- One integration of your choice: online payments, AI features, or your CRM
- Domain & hosting set up for you (or on your own account)
- Secure HTTPS, Google-ready SEO & visitor analytics
- 14-day warranty — we fix any bugs quickly, for free
Web & Mobile App
One product for web, iPhone & Android — or a complete automation of your business workflows.
One-time sprint
Everything in Web MVP, plus:
- One app for web, iPhone & Android
- Admin panel to manage users and content, with access levels for your team
- Connections to your business tools (CRM, accounting, workflow automations)
- AI assistant that works with your own documents and data
- Cloud hosting on your account with automatic, safe updates
- 30 days of support & automatic error alerts
OPTIONAL EXTRAS
Add Extra Features
Add any of these to your project for a fixed price. Tick them in the form below and we'll include them in your estimate.
AI Assistant for Your Data
An AI chat that answers questions from your own documents and data — for your team or your customers.
Online Payments & Subscriptions
Accept one-time payments or monthly subscriptions (Stripe or Mollie), with a page where customers manage their billing.
App Store & Google Play Launch
We set up your developer accounts, prepare the store screenshots, and submit your app for approval.
Multiple Languages
Your app in several languages, picked automatically for each visitor and findable on Google in each one.
After Launch
Want us to keep your app running and improving?
Support plans from €99$99/mo. No long-term contract — cancel anytime.
AFTER LAUNCH (OPTIONAL)
Keep Your App Running & Growing
We look after your app so it stays fast, secure and online — and keep adding the features your users ask for. No long-term contract.
Care Plan
We keep your app online, backed up and secure, so you can focus on your business.
Cancel or pause anytime
What's included
- 24/7 monitoring: We're alerted the moment your app goes down.
- Weekly backups: Your data is copied to a safe place and can be restored quickly.
- Security updates: We install fixes for known security problems before they can hurt you.
- 3 hours of maintenance per month: Keeping servers fast, certificates valid and errors in check.
- Emergency help: If something breaks, you're first in line.
Growth Sprints
New features every two weeks, based on what your users actually ask for.
One-off or recurring sprints
Everything in Care Plan, plus:
- New features: We build and release what your customers need next.
- Direct chat with your developer on Slack or Telegram — no middlemen.
- Integrations kept working: Payments, CRM and other connected tools stay in sync.
- Updates every two weeks: Tested releases with no downtime for your users.
- Speed, SEO & security checks: Your app stays fast and easy to find on Google.
💡 Need something different? Every plan can be adjusted to your needs. No long-term contract — pause or stop anytime.
Case studies
From idea to working app
Ukrainity: Map of Ukrainian Businesses Abroad
- Challenge
- Ukrainians abroad struggle to find services from their own community, and Ukrainian businesses abroad had no shared place to be found and to support each other.
- Solution
- Built a cross-platform app with Flutter, Supabase and the Google Maps API: a live map with search, categories and nearby places, favourites, and business profiles managed by their owners, in Ukrainian and English.
- Impact
- One codebase live on the web, Android and iOS, connecting Ukrainian businesses abroad with the community that is looking for them.
- Flutter
- Supabase
- Google Maps API
Interactive LED Painting App
- Challenge
- There were no convenient solutions on the market for controlling custom smart canvas lamps and LED lighting from a smartphone.
- Solution
- Built a cross-platform React Native app with Bluetooth connection, color selection, brightness control and multiple lighting modes.
- Impact
- Smooth animations and stable real-time hardware communication transformed static art into interactive smart objects.
- React Native
- IoT
- Bluetooth
HOW IT WORKS
From Idea to Live Product in 3 Steps
A clear, simple process — you always know what's happening and what comes next.
Free Scoping Call
On a free 30–60 minute call we go through your idea, agree on the must-have features, and choose the right technology. Then you get a fixed price and timeline in writing.
We Build, You Watch
We build your product and share a live preview link as we go, so you can click through it and give feedback early.
Launch & Handover
We put your product live on your domain, hand over all the code (it's 100% yours), and start your free bug-fix warranty.
Get Your Free Project Estimate
Tell us about your idea. We'll reply within 24 hours to book a free scoping call — no commitment.