Custom platform or SaaS build
From $2,500 USD
Web app, SaaS product, client portal, marketplace, booking system or internal tool, from discovery to launch.
Back to Services
Service 01 / Custom platforms and SaaS
Custom web app and SaaS development.
Web apps, SaaS products, client portals, marketplaces, booking systems and internal tools. Senior, agency-quality work, delivered faster and at lower cost than an agency, by the person who builds it.
- Price
- From $2,500 USD
- Timeline
- 4 to 12 weeks
- Where
- Remote, clients worldwide
In short
Red Center Studio designs, builds and launches custom web apps and SaaS products for founders, businesses and agencies worldwide, on Bubble® or custom code on Cloudflare depending on what the product needs. Builds start from $2,500 USD, and most take 4 to 12 weeks from Blueprint to launch.
Who it is for
- Founders who want to build a SaaS MVP or a first version they can sell, without hiring a team.
- Businesses that need a client portal, booking system or internal tool their off-the-shelf software cannot do.
- Agencies that need a senior builder for a client platform, delivered under a clear scope.
Sound familiar?
- I have the idea and the customers waiting, but agencies quoted me six figures and six months.
- We run the business on spreadsheets and three tools that do not talk to each other.
- Our first developer disappeared and nobody can finish the app.
- I need a custom web app developer who can also handle payments, logins and the admin side.
What changes for you
- A working product in front of real users in weeks, not quarters.
- One system for the workflow your business actually runs, instead of patched-together tools.
- A platform you own outright, in your own accounts, with documentation for whoever works on it next.
What is included
- Discovery and a written scope in the Project Blueprint.
- UX for the core flows: wireframes for the screens that matter, agreed before the build.
- The build on Bubble or custom code on Cloudflare (Pages, Workers, D1 and R2), chosen for your product, budget and growth plans.
- User accounts and authentication, with roles and permissions.
- Payments with Stripe, including subscriptions or marketplace payouts where needed.
- An admin area for your team to manage users, content and data.
- Email and SMS notifications, and integrations with the tools you already use.
- Launch, testing and handover.
What you receive
- A live web app or SaaS product on your domain, in your own accounts.
- Source code in your own repository, or the app in your own Bubble account.
- An admin area and a short written guide for your team.
- Handover notes covering the architecture, accounts and ongoing costs.
Stack
Bubble or custom code on Cloudflare Pages, Workers, D1 and R2, with Stripe for payments, Brevo or similar for email, Twilio for SMS, and OpenAI or Anthropic models where the product uses AI.
What is not included
- Running costs such as hosting, Bubble plans, AI usage, email and payment fees. These are billed to your own accounts.
- Support after the launch period, which is available as the Care and Growth Plan.
- Changes to the agreed scope, which are quoted before any work starts.
Price and timeline
From $2,500 USD.
Fixed in the Project Blueprint, based on user roles, integrations and screens. Timeline: 4 to 12 weeks. Prices are in USD.
Care and Growth Plan
From $300 USD per month
Hosting oversight, updates, monitoring, small changes and priority support after launch.
How it works
Blueprint, Build, Launch, Care.
- Blueprint. A paid discovery ($499 USD, credited to the build) that turns the idea into scoped requirements, an architecture, a timeline and a fixed quote.
- Build. The product is built in stages, with a working version to click through at each checkpoint, so you see progress every week.
- Launch. Testing, your domain connected, payments switched to live, and the platform handed over in your own accounts.
- Care. Optional Care and Growth Plan from $300 USD per month for hosting oversight, updates, monitoring and small changes.
I work remotely with clients worldwide. Questions, reviews and updates run asynchronously across time zones, with calls booked at times that suit you.
Relevant work
Built and running in production.
TradeCatcher
A live platform for trades businesses: missed-call text-back, photo job intake, AI quote drafting and automated SMS and email follow-up. Built on Bubble with OpenAI, Twilio, Stripe and Brevo.
Read the case studySharehouseHub
A live multi-role platform for property, room rental, house-sitting and shared house management, with payments and email. Built on Bubble with Stripe and Brevo.
Read the case studyTemplates on the Bubble Marketplace
App templates for quoting, hire, intake, judging, investor portals, stock tracking and more, published on the Bubble Marketplace, each with its own support page.
Start with a Project Blueprint
Tell me about your project.
Most projects start with a Project Blueprint: $499 USD for scoped requirements, an architecture, a teardown of 3 competitors and a fixed quote, credited in full toward the build. Questions first? Email Hello@redcenterstudio.com or book a short call.
Details received. I reply by email with the next steps. Your reference: . Want to talk it through sooner? Book a short intro call and mention your reference.
Custom platforms and SaaS questions
How much does it cost to build a SaaS MVP or custom web app?
Custom platform builds start from $2,500 USD. The final price depends on the number of user roles, integrations and screens. You get a fixed quote in the Project Blueprint before the build starts.
How long does a custom platform take to build?
Most builds take 4 to 12 weeks from the end of the Blueprint to launch. A focused MVP sits at the shorter end, and a multi-role marketplace or portal with several integrations at the longer end.
Do you build on Bubble or with custom code?
Both. Bubble suits products that need to launch quickly and be edited visually. Custom code on Cloudflare suits products with heavy traffic, strict performance needs or a team that wants to own the code. The Blueprint recommends one, with the reasons.
Who owns the app and the code?
You do. The app is built in your own accounts, and code is handed over in your own repository. Nothing stays locked in the studio's accounts.
Why work with a solo studio instead of an agency?
You work directly with the senior person who scopes and builds the product, using AI-assisted development to move faster. There are no account managers or handoffs, which keeps the cost lower and the decisions quicker.
Can you work with my time zone?
Yes. The studio works remotely with clients worldwide. Updates, questions and reviews run asynchronously by email and recorded walkthroughs, with calls scheduled at a time that suits you.
Not quite right?
A step up, or a smaller first step.
Project Blueprint
$499 USD, credited in full toward your project
The Project Blueprint is a $499 USD paid discovery from Red Center Studio for anyone planning a custom platform, business website or migration. It delivers scoped requirements, a recommended architecture, a teardown of 3 competitors, a timeline and a fixed quote, usually within 5 to 10 business days, and the full $499 is credited toward the build or migration.
Care and Growth Plan
From $300 USD per month
The Care and Growth Plan is a monthly retainer from Red Center Studio for websites and apps after launch: hosting oversight, updates, uptime and error monitoring, small changes and priority support. It starts from $300 USD per month and is available for any build, migration or AI setup delivered by the studio.