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Custom platforms

Custom platform development, built around the way your business works

A custom platform is software with its own users, logins and data, built for one business rather than bought off the shelf. B63 designs and builds custom web platforms — booking and reservation systems, client and member portals, marketplaces, directories and internal tools — around the exact way you work. Every platform is scoped and quoted per project, and it is separate from the €150 per month website plan.

Updated · By Asen Panayotov

Short answer: B63 designs and builds custom web platforms — booking systems, client and member portals, marketplaces, directories and internal tools — around how your business actually works. Each one is scoped with you and quoted per project, and it is separate from the €0 upfront, €150 per month website plan. The clearest proof of the work is Relivv, our own live platform.

This page is about platforms: software with users, logins and data. If what you need is a site that presents your business and brings in enquiries, that is a website, and it is usually quicker and cheaper. If you need a smaller tool or a CRM rather than a full platform, see custom web apps.

When you need a platform, not a website

A website mostly shows information. A platform lets people do things, usually behind a login. You probably need one when:

  • People need accounts. Clients, members or partners should log in and see their own bookings, documents, orders or profile.
  • A process lives in spreadsheets and email. Bookings, applications, approvals or stock are tracked by hand, and it no longer scales.
  • No ready-made tool fits. Off-the-shelf software almost does the job but forces your business to work its way instead of yours.
  • Two sides meet in one place. Buyers and sellers, hosts and guests, organisers and attendees — a marketplace or directory with search and profiles.

If a well-built website can do what you need, we will say so. When it can’t, a platform is the honest answer.

What a custom platform can be

Every platform is different. A few of the shapes they take:

  • Booking and reservation systems — availability, calendars, confirmations and reminders, built around your rules rather than a generic plugin.
  • Client and member portals — logins, personal areas, documents, subscriptions and messaging.
  • Marketplaces and directories — listings, profiles, search and filtering, and a way for two sides to find each other.
  • Internal tools and dashboards — one shared system that replaces spreadsheets, manual reports and long email threads.
  • Event and community platforms — like Relivv, our own product: a live photo wall and guest album for events.

Our own platform: Relivv

Relivv is B63’s own custom platform — a live photo wall and guest album that guests at an event join, upload to and watch in real time. We designed it, built it and run it ourselves. It is the clearest example of the kind of platform work we do, and building and operating our own product means we understand platforms from the owner’s side, not only the developer’s.

How it works

  1. Tell us the problem. Describe what the platform should do, who will use it and any deadlines. Start on the contact page.
  2. Scoping. We work through users, features, data and what a first version needs to include — and, just as important, what it can leave for later.
  3. Quote. You get one clear quote for the agreed scope before any work starts.
  4. Design and build. B63 designs the screens and builds the platform in stages, with your feedback as working parts go live.
  5. Launch and grow. The platform goes live. Hosting, support and the next round of features are set out in the quote.

What it costs

Custom platforms are quoted per project — they are not part of the €0 upfront, €150 per month website plan, because the work varies so much from one to the next. The main things that move the price:

  • the number and complexity of features
  • how many types of user and permission level there are
  • whether it connects to other systems, payments or services
  • how much data it holds and how people search and filter it
  • the number of screens and the level of design detail

Starting with a focused first version keeps the first quote smaller and lets real use guide what gets built next. A clear, agreed scope keeps the quote honest on both sides.

Platform, web app or website?

Website on the care plan Custom web app Custom platform
Main job Present the business, bring in enquiries One tool or workflow, often internal Software with its own users, logins and data
Example A business or shop site A CRM or internal tool A booking system, portal or marketplace
Price €0 upfront, €150/month for 24 months Quoted per project Quoted per project
Timeline Live 7–10 days after content Agreed during scoping Built in stages from a first version

Not sure which you need? Start with a line about the problem on the contact page and we will tell you honestly which one fits — including when a plain website is enough.

Why B63

  • Building for the web since 2014, from a studio in Sofia, Bulgaria, working across the EU, the UK and beyond.
  • We run our own platform. Relivv is proof we can take a platform from idea to a live product, not just a slide.
  • A clear quote before work starts, based on a scope you have agreed to — no open-ended meters.
  • You own it. Standard, open technology and your own code, data and accounts, so you are never locked in.

Have a platform in mind? Tell us what it needs to do. You can also see custom web apps, browse all our work, or read how the €0 upfront website plan works for a standard site.

Questions from businesses like yours

What is a custom platform?

A custom platform is web software built for one business: it has its own users, logins and data, and does things a normal website cannot, such as taking bookings, running a members' area or hosting a marketplace. B63 designs and builds it around your process instead of forcing you into a ready-made tool.

How much does a custom platform cost?

It is quoted per project, because no two platforms take the same work. B63 agrees the scope with you first, then gives one clear quote before anything starts. Platforms are separate from the €0 upfront, €150 per month website plan.

How long does it take to build?

It depends on the scope. A focused first version with a few core features is far quicker than a full platform. We agree a realistic timeline during scoping and build in stages, so you see working screens early rather than waiting for everything at once.

Do I own the platform and its code?

Yes. The code, data and accounts are yours. B63 builds on standard, open technology so another developer can pick it up, and hosting and ongoing support are set out in the quote rather than locking you in.

Can you start small and grow it later?

Yes, and we usually recommend it. We build a solid first version around the one thing the platform must do, get it live, then add features once real users are on it. It keeps the first quote smaller and the direction grounded in real use.

Can you build a platform for a business outside Bulgaria?

Yes. B63 works remotely with businesses across Europe, the UK and beyond, and the whole project — scoping, build and launch — runs online.

Services

What we do

Your website and everything that gets it found and chosen: search, Maps and AI visibility, care and changes, online stores and web apps.

Website design

B63 is a web studio in Sofia, Bulgaria, designing and building websites since 2014. We build a fast website that gets your business found on Google and makes it easy for customers to call or enquire, for €0 upfront. Then we host and look after it for a fixed €150 per month over 24 months, and make your changes whenever you send them.

Included in the care plan Learn more

Website maintenance

Every website B63 builds on the care plan is hosted and looked after by us for a fixed €150 per month over 24 months. Here is exactly what that covers, and what happens when the term ends.

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Online stores

An online store that is easy to browse on a phone and simple to buy from, with orders landing in one dashboard. For shops we use WooCommerce, which handles products, payments and orders well. Two of the client websites in our portfolio include a WooCommerce shop, among them a jewellery e-shop.

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SEO and page speed

B63 includes technical SEO and page speed optimisation in every website build and in the care plan. It gives search engines a clean, fast, clearly described site to work with. It does not guarantee rankings, and nobody honestly can.

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Web apps

When a standard website isn't enough, B63 designs and builds custom web apps: CRMs, client and member portals, booking and order tools, and internal tools that replace spreadsheets and automate routine work. Every app is scoped and quoted individually; it is not part of the €150 per month website plan.

Quoted per project Learn more

AI search optimisation

AI search optimisation, also called AEO or GEO, makes your website easy for AI assistants such as ChatGPT, Copilot, Perplexity and Google's AI Overviews to find, understand and cite. It is included in B63's monthly plan; for one-time builds and existing sites it is priced on request. Nobody can guarantee an assistant will name you, and we don't.

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Search and analytics setup

Google Search Console shows how Google sees your site. Bing Webmaster Tools does the same for Bing, which also feeds Copilot. Google Business Profile puts you on Maps, and analytics shows what visitors do. On B63's monthly plan we set up all four; for one-time builds and existing sites it is priced on request.

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Website redesign

A website redesign rebuilds your site's design, structure and code while keeping what already works: your web addresses, the pages that bring visitors and your email. At B63 a redesign is a full rebuild as a fast, mobile-first site, with every old URL redirected, and it costs the same as a new website.

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