The Complete Bubble.io Guide for Founders & Builders
What Bubble is, how to validate your idea with it, how to build web and mobile apps, integrate payments, and understand how its frontend, backend, and database work together.
What is Bubble.io?
Bubble is a visual web development platform that lets you build fully functional web applications — with a real database, business logic, user authentication, and a complete frontend — without writing code. Founded in 2012 by Emmanuel Straschnov and Josh Haas, its goal has always been to make software creation accessible to anyone with an idea, not just those who can code.
Unlike website builders like Wix or Squarespace (which create static pages), Bubble creates real, dynamic applications. Your data lives in Bubble’s database. Your logic runs on Bubble’s servers. Users can sign up, log in, create and edit records, interact with third-party APIs, and process payments — all built through Bubble’s visual editor without a single line of code.
How Bubble Compares to Traditional Development
What Can You Actually Build on Bubble?
Bubble is general-purpose enough to build almost any data-driven web application. Real companies have shipped the following on Bubble and grown to significant revenue:
Marketplaces
Two-sided platforms with listings, seller dashboards, buyer flows, reviews, and split payments via Stripe Connect.
SaaS Products
Multi-tenant apps with subscription billing, user roles, usage limits, and team management — fully functional on Bubble.
Internal Tools
CRMs, admin dashboards, operations portals, and workflow automation tools built and deployed in days, not months.
Ed-Tech Platforms
Course platforms with video hosting, quizzes, progress tracking, certificates, and instructor dashboards.
Booking Systems
Appointment schedulers, availability calendars, confirmation flows, and payment collection.
Social Platforms
Community apps with profiles, feeds, follows, notifications, messaging, and content moderation.
Who Uses Bubble?
Bubble has over 4 million registered users. Its sweet spot is non-technical founders validating startup ideas, product managers prototyping features, and agencies building client apps rapidly. Companies like Dividend Finance, Comet, and Teal have used Bubble to power real products with real customers.
Validating Ideas with Bubble
The most expensive mistake in product development is spending six months and $100K building something nobody wants. Bubble changes this equation fundamentally — you can have a working, clickable, data-driven prototype in front of real users within a week. Not a Figma mockup. A real app they can sign up for, use, and pay for.
Idea validation is where Bubble’s speed advantage over traditional development is most dramatic. Traditional development separates design, backend, frontend, and testing into sequential phases. In Bubble, all of these happen simultaneously — you design and wire up the logic in the same tool, in the same session.
The Bubble Validation Framework
Here’s the exact process for using Bubble to validate an idea, from hypothesis to first paying customer:
What to Build vs. What to Fake
Good validation means testing the riskiest assumption with the least amount of work. Not everything needs to be built in Bubble — some things should be deliberately faked to save time:
The “Concierge MVP” Pattern
Build the user-facing flow in Bubble, but handle the backend operations manually. A user books a service — you personally fulfill it. This tests willingness to pay without building any fulfillment logic. Once you have 20 bookings, then automate.
Validation Signals to Look For
A validated idea in Bubble looks like this: users complete the core flow without asking for help, at least one user offers to pay before you’ve even set up billing, and users return to the app the next day unprompted. If none of these happen after 20 users, you have a signal problem — all of which are cheaper to discover with a Bubble MVP than a custom-built one.
Web and Mobile Applications with Bubble
Bubble is primarily a web application platform. Every app you build runs in a browser. But the question most founders ask is: can I ship a mobile app from Bubble? The answer is yes — with an important caveat about how it works.
- ✓Full Bubble editor support
- ✓Custom domain + SSL included
- ✓Responsive design (desktop, tablet, mobile browser)
- ✓Progressive Web App (PWA) — add to home screen
- ✓SEO-indexable pages
- ✓No app store submission required
- ✓Instant updates — no user re-download
- ✓Publishable to App Store & Google Play
- ✓Access to push notifications
- ✓Access to camera, GPS, contacts
- ✓Same Bubble app — no duplication of logic
- ✓In-app purchases via StoreKit
- ✗WebView wrapper, not true native
- ✗App store review process applies
Building a Responsive Web App in Bubble
Bubble has a built-in responsive design engine. Every element on the canvas has responsive settings that control its behaviour at different screen widths.
| Responsive Concept | What It Controls | Best Practice |
|---|---|---|
| Min / Max Width | How wide an element can grow or shrink | Set max-width on containers to prevent stretching on ultra-wide screens |
| Column Layout | Side-by-side elements on desktop that stack on mobile | Use Row groups set to “wrap” below a certain viewport width |
| Conditional Visibility | Show/hide elements at different screen sizes | Separate mobile nav vs. desktop nav using Current page width < 768 |
| Fixed vs. Fluid Width | Whether element takes fixed px or % of parent | Set most containers to fluid % widths; only icons/avatars get fixed px widths |
| Repeating Group Layout | Whether cards show in a grid or list | Use “Full List” layout with column wrap — 3 columns on desktop, 1 on mobile |
Shipping a Mobile App via BDK Native
BDK Native is the most popular solution for wrapping a Bubble app into a native iOS and Android shell. Your Bubble app runs inside a native container that grants access to device features Bubble can’t reach on its own: push notifications, camera, biometric login, and the camera roll.
The process: design your Bubble app mobile-first and fully responsive. Use BDK Native’s configuration to define your app icon, splash screen, and which device APIs to enable. BDK generates the native bundles you submit to the App Store and Google Play. Any update you make in Bubble instantly appears in the mobile app — no user update required.
PWA First, Native Later
Before investing in BDK Native submission, ship as a Progressive Web App. Enable it under Settings → SEO / metatags → Enable as a PWA. Users add your app to their home screen on iOS and Android and get a near-native experience — with no App Store review delays. Submit to the App Store only after validating the mobile product via PWA.
Integrating Payments in Bubble
Bubble has deep, first-class integration with Stripe. You can collect one-time payments, set up recurring subscriptions, split payments across multiple parties (marketplace Connect), and issue refunds — all through Bubble’s visual workflow editor with no custom code.
How the Stripe + Bubble Integration Works
Install the official Stripe plugin from Bubble’s plugin marketplace. Enter your Stripe Secret and Publishable keys in the plugin settings. Every Stripe action — creating a checkout session, retrieving a customer, creating a subscription, issuing a refund — is then available as a visual workflow action in Bubble’s editor.
The most important concept is the webhook pattern. When Stripe processes a payment, it fires an event to a URL you provide. In Bubble, that URL is a Backend API Workflow endpoint. Your workflow receives the event, extracts the relevant data, and updates your database. This is the only reliable way to know a payment succeeded — never trust the success redirect URL alone.
Essential Stripe Webhooks to Implement
| Stripe Event | When It Fires | What to Do in Bubble |
|---|---|---|
checkout.session.completed | One-time payment succeeds | Create order record, unlock access, send confirmation email |
customer.subscription.created | New subscription starts or trial begins | Set account plan, set subscription status to “trialing” or “active” |
customer.subscription.updated | Plan changed, trial ended, or renewal processed | Sync plan field, update subscription status and current_period_end |
customer.subscription.deleted | Subscription cancelled (period end reached) | Set status = “cancelled”, restrict feature access, send offboarding email |
invoice.payment_failed | Renewal payment fails | Set status = “past_due”, restrict access, trigger dunning email sequence |
invoice.payment_succeeded | Renewal payment succeeds | Set status = “active”, reset monthly usage counter, send receipt |
Beyond Stripe: Other Payment Integrations
PayPal
Available via Bubble’s PayPal plugin or through the API Connector. Better for markets where PayPal adoption is high.
Free pluginPaddle
SaaS-focused payment platform with built-in tax compliance and merchant of record. Connects via API Connector.
Via API ConnectorChargebee
Advanced subscription lifecycle management, dunning, and revenue analytics. Connects via API Connector.
PaidStripe Customer Portal
Stripe’s hosted portal for customers to manage subscriptions. One action in Bubble — zero custom build needed.
Native StripeFrontend, Backend & Database in Bubble
One of the most common questions from developers evaluating Bubble is: “How does Bubble map to the traditional web stack?” Bubble replaces all three layers — frontend, backend, and database — with a single visual environment. Understanding how each layer works unlocks the mental model you need to build effectively.
The Frontend in Depth
Bubble’s Design editor is a canvas-based UI builder. Every element has a set of properties: its size, position, style, and most importantly, its content source. A text element can display a static string or a dynamic value — the current user’s name, the result of a database search, a URL parameter, or a page state variable.
Repeating Groups
The most important element in Bubble. A Repeating Group renders a list of database records. Each cell has access to “Current cell’s [Type]” for dynamic display. Think of it as a database-powered map().
Conditionals
Every element can have multiple conditional states: change colour, show/hide, change text — based on any condition. A button turns grey and says “Upgrade to Pro” when User’s plan ≠ “pro”.
Reusable Elements
Build a component once (nav bar, modal, card) and reuse it across pages. Changes propagate everywhere it’s used — Bubble’s equivalent of a component library.
Styles System
Define reusable styles for buttons, text, inputs, and containers. Change a style once and it updates across your entire app — like design tokens without writing CSS.
The Backend (Workflows) in Depth
Workflows are Bubble’s equivalent of server-side functions, event handlers, and API routes — all in one. Every workflow has a trigger and a sequence of actions that execute in order. You can branch with “Only when” conditions, loop through lists with “Schedule API Workflow on a List”, and chain workflows together.
| Workflow Type | Trigger | Use Case |
|---|---|---|
| Frontend Workflow | User action (click, page load, input change) | Create/update records, navigate pages, show popups, call APIs |
| Backend API Workflow | HTTP request (from another workflow, webhook, or external service) | Process Stripe webhooks, handle async tasks, server-side logic |
| Scheduled Workflow | Time-based (daily, weekly, on a specific date) | Send digest emails, reset usage counters, expire trial accounts, generate reports |
| Recursive Workflow | Calls itself on a list, one item at a time | Bulk operations on thousands of records without hitting timeout limits |
| Custom Events | Triggered by name from another workflow | Reusable logic blocks — define once, trigger from multiple places |
The Database in Depth
Bubble’s database is presented as a relational system. You define Data Types with Fields of specific types: text, number, date, yes/no, file, geographic address, or a reference to another Data Type. The most powerful feature is Privacy Rules — access control enforced at the database query level, not in application code.
The Critical Performance Distinction
“Do a Search for” with constraints runs as a database query — fast and scalable. “:filtered by” runs in the browser after data is fetched — slow at scale. Always push constraints into the search query. Only use “:filtered by” for secondary filtering on an already-small dataset. This single distinction explains 80% of Bubble performance problems.
How the Three Layers Connect
In traditional development, frontend, backend, and database are separate codebases communicating through APIs. In Bubble, they’re one connected environment. A Repeating Group (frontend) displays data from “Do a Search for” (database query). A button click triggers a workflow (backend) that creates a record (database write). A webhook fires a backend workflow that updates a record, which the frontend displays in real time via Bubble’s live data binding.
This tight integration is Bubble’s greatest speed advantage. Add a field to a Data Type and it’s immediately available in workflows and UI — with no schema migration, no API endpoint change, no frontend type update. This is why Bubble apps can be iterated so rapidly compared to traditional codebases.
Start Building on Bubble Today
You now understand what Bubble is, how to validate with it, how to build for web and mobile,
how payments work, and how the full stack fits together. The next step is building.