Urban Boulder
A collaborative, mobile-first map of urban bouldering spots.
Web app2026
Visit website — Urban BoulderWeb app, mobile app and MVP development
Your product, from idea to first release.
Mazy 9 Studio designs and builds custom apps for entrepreneurs, startups and businesses in Belgium: internal tools from €2,000, web MVPs from €2,500 excl. VAT delivered in 1 to 2 months, native mobile apps and SaaS on quote. The studio is based in Liège.
Key facts
- Starting price
- €2,000 excl. VAT
- Impact project (30% off)
- €1,400 excl. VAT
- Indicative timeline
- Web MVP: 1–2 months
- Area served
- Liège, Province of Liège, Wallonia, Belgium · remote
- Languages
- French, English
- Response
- Within 48 working hours
Updated on by Matthias, founder
Who it's for
Apps & digital products
Founders, startups and companies looking to digitise a process or launch a product.
Common situations
- An idea to validate before investing heavily
- Processes stuck in overflowing spreadsheets
- A service you want to offer your clients online
Offers and starting prices
What's included, and at what price.
Small web app / internal tool
Replace a manual process or simplify a business task with a dedicated tool.
From€2,000excl. VAT
Impact project: €1,400 excl. VAT
Indicative timeline: Confirmed at scoping
- Scoping workshop
- Functional scope
- Interface
- Development
- Data
- Testing
- Deployment
- Documentation
Web MVP
Launch a first working version of your product and test it with real users.
From€2,500excl. VAT
Impact project: €1,750 excl. VAT
Indicative timeline: 1–2 months
- Scoping workshop
- Features
- UX/UI
- Interface
- Accounts
- Main journey
- Back end
- Testing
- Production release
- Documentation
SaaS / advanced business application
Products with several user roles, subscriptions, advanced permissions, integrations or significant business requirements.
On quote
Indicative timeline: Confirmed at scoping
Native mobile app
An app installed from the App Store or Google Play — not the same as a responsive web app used in the browser.
On quote
Indicative timeline: Confirmed at scoping
New features for an existing product
Extend an application or platform that is already in use.
On quote
Indicative timeline: Confirmed at scoping
How it works
How a project unfolds.
- 01
First conversation
Understand your needs, context and constraints.
- 02
Scoping & estimate
Define the scope, priorities and budget.
- 03
Design & development
Design, build and validate with you step by step.
- 04
Testing & launch
Check everything and prepare the release.
- 05
Ongoing support
Maintain and evolve the product as you need.
Related work
What we've already built.
Projects in development: a detailed write-up will follow at launch.
Kodama — mobile app
A mobile app for Kodama, currently in development.
Mobile appIn progress
How much does it cost to build an MVP?
A web MVP starts at €2,500 excl. VAT at Mazy 9 Studio. This covers scoping, key screen design, authentication if needed, the main user flow, the database and the production launch. The final amount depends on the features agreed during scoping.
How long does it take to launch an MVP?
A web MVP usually takes 1 to 2 months, from scoping to production launch. That assumes a focused scope: the essential features first, then further improvements, each estimated one by one after your first users' feedback, so you only invest in what proves useful.
What is an MVP?
An MVP (minimum viable product) is a focused first version of your product, limited to the essential features. It lets you test the idea with real users before investing in a full platform, then decide on next steps based on real feedback.
Do you build mobile apps?
Yes. A native mobile app, published on the App Store or Google Play, is quoted based on the target platforms, phone features, back end and integrations. For many projects, a responsive web app used in the browser is enough to get started.
Can you take over an existing app?
Yes. We start by reviewing the architecture, code quality and available documentation, then estimate the requested feature. Adding features to an existing product is quoted after this preliminary review, so the budget is based on the real state of your app rather than on assumptions.
Who owns the app's code?
Ownership of the code and deliverables is set out in the contract, with the exact terms agreed before the project starts. Handover documentation is included, so your team or another provider can take over the product and keep developing it without depending on us.
Let's discuss your project
Your next project starts with a conversation.
Even if your idea isn't fully defined yet, a first conversation helps clarify the need and the next steps.
