Who This Is For
This guide is for people who want to build and sell a software product but either don't know how to code or want to move faster than traditional development allows. You'll build a real, working SaaS that you can sell to paying customers.
What you'll be able to build by the end:
- Multi-user app with authentication
- Subscription payments via Stripe or Paystack
- A database of user data that only they can see
- An admin dashboard showing all users and revenue
- A landing page that converts visitors to signups

Free vs Paid: The Honest Stack Comparison
Free / Low-Cost No-Code Stack
| Tool | Purpose | Free Tier | Paid |
|---|---|---|---|
| Bubble | App builder | Free (Bubble branding) | $29/month (removes branding) |
| Supabase | Database (via Bubble plugin) | 500MB free | $25/month |
| Stripe | Payments | No monthly fee | 2.9% + $0.30/transaction |
| Cloudflare | Domain & SSL | Free | Free |
Total: $0–$29/month
Professional No-Code Stack (When Earning $2k+/month)
| Tool | Purpose | Cost | Why Upgrade |
|---|---|---|---|
| Bubble Growth | App builder + custom domain | $119/month | More capacity, collaboration |
| Xano | Backend + API | $49/month | Better performance than Bubble DB |
| Webflow | Marketing site | $23/month | Better SEO, faster loading |
| Memberstack | Membership management | $49/month | Better member experience |
What to Build: A Content Planning SaaS
We'll build ContentPal — a tool that helps small businesses plan their social media content for the month. Simple enough to build in a weekend, specific enough to charge for.
Core features:
- User signup and login
- Content calendar (monthly view)
- Post creation with AI caption suggestions
- Post status tracking (draft/scheduled/published)
- Upgrade to Pro for unlimited posts
Step 1: Set Up Bubble
- Go to bubble.io and create a free account
- Create a new app, choose "Start from scratch"
- Name it "ContentPal"
Configure Your Database
In Bubble, go to Data → Data Types and create:
User (already exists — add fields):
plan(text, default: "free")post_count_this_month(number, default: 0)
Post:
title(text)caption(text)scheduled_date(date)status(text — values: draft, scheduled, published)platform(text — values: instagram, twitter, linkedin, facebook)created_by(User — link to the creator)
Privacy Rules (critical — set these before anything else):
For the Post data type:
- Check "This data type is private by default"
- Add rule: "When current user is logged in AND Current User = Post's created_by" → Allow full access
This ensures users can only see their own posts.
Step 2: Build the UI
The Dashboard Page
- Go to Design tab
- Add a Repeating Group element
- Set Data source:
Search for Posts where created_by = Current User, sorted by scheduled_date - In the repeating group cell, add:
- Text: Current cell's Post's title
- Text: Current cell's Post's scheduled_date
- Text: Current cell's Post's status
- Button: "Edit" (workflow: navigate to Post page with this Post's unique id)
The Create Post Page
Add a form with:
- Input: Post title
- TextArea: Caption
- DatePicker: Scheduled date
- Dropdown: Platform (Instagram, Twitter, LinkedIn, Facebook)
- Button: "Create Post" (workflow: create a new Post with the form values, set created_by = current user)
Step 3: Add AI Caption Suggestions
Bubble can call external APIs. Connect to Groq:
- Go to Plugins → Add Plugins → search "API Connector" → Install
- Go to Plugins → API Connector → Add another API
Configure:
- Name: Groq
- Root URL:
https://api.groq.com/openai/v1 - Authentication: Private key in header:
Authorization=Bearer your_groq_key
Add a call:
- Name: GenerateCaption
- Method: POST
- Path:
/chat/completions - Body:
{
"model": "llama-3.1-8b-instant",
"messages": [
{
"role": "user",
"content": "Write a compelling <platform> caption for: <topic>. Include relevant hashtags. Max 150 words."
}
]
},
In your Create Post page, add a "Generate Caption" button that:
- Calls the Groq API with the title as input
- Sets the caption textarea to the API response
Step 4: Add Stripe Payments
- Install the Stripe.js plugin from Bubble's plugin marketplace
- Go to Settings → API Keys in your Stripe dashboard
- Copy publishable and secret keys
Create a checkout workflow:
When user clicks "Upgrade to Pro":
- Action: "Stripe — Create Checkout Session" with your product price ID
- Action: "Open an external website" with the checkout URL from step 1
Handle the return:
Create a page /payment-success with a workflow that runs on page load:
- Action: Call your backend (Supabase function or Bubble workflow) to update user's plan to "pro"
Step 5: Enforce Plan Limits
Add a condition to your "Create Post" button:
- Condition:
Current User's plan = "free" AND Current User's post_count_this_month >= 5 - If true: Show upgrade modal instead of creating post
Going From Bubble to Code (When You Outgrow It)
| Sign | Meaning |
|---|---|
| App takes >5 seconds to load | Bubble's database is slow — migrate to Supabase + Next.js |
| You need a custom API | Bubble's API calls are limited — use a real backend |
| You have >500 users | Bubble becomes expensive — cost to build is now lower than cost to operate |
| You need offline functionality | Bubble can't do this — need native or PWA |
Most no-code SaaS founders hit these limits around $5,000–$15,000 MRR. At that point you either hire a developer to rebuild in code, or use the revenue to keep paying Bubble's higher tiers.

