How to Write a PRD for a No-Code App: A Section-by-Section Template
A good PRD is the cheapest insurance in software. A Product Requirements Document (PRD) turns an idea into a written, testable plan: who the product is for, what it must do, what it must not do, and how you will know it works. For no-code builds, where speed tempts people to start clicking immediately, a PRD is what stops you from building the wrong thing quickly.
What a PRD is, and what it is not
A PRD describes what to build and why. It is not a design file and it is not technical documentation. It sits between your idea and the builder, so that anyone reading it, whether a developer, designer or investor, understands the same product.
On a no-code platform like Bubble.io, a PRD also makes estimating far more accurate, because cost follows the number of user flows, integrations and data relationships, all of which a PRD makes visible.
The 10 sections every PRD needs
1. Problem statement
Two or three sentences: who has the problem, what it costs them today and how they cope now. Example: “Boutique accounting firms chase clients by email for documents, which delays filings and wastes partner time.”
2. Target users and roles
List every type of user and what each needs. Many apps have at least three: an admin, a primary user and an external user such as a client. Roles drive permissions, and permissions drive complexity.
3. Goals and success metrics
State measurable outcomes for the first version. Examples: “A new client can complete onboarding in under 10 minutes,” or “50 paying accounts within 90 days.” Metrics let you judge the build objectively.
4. Scope: in, out and later
Use three lists. In is what version one will do. Out is what it deliberately will not do. Later is what you will revisit after launch. The “out” list is the most valuable part of the document because it prevents silent assumptions.
5. User flows
Describe each journey as numbered steps. For example, for a booking app: choose service, pick a time slot, enter details, pay, receive confirmation. Every flow should name the starting screen, the action, the result and the failure case.
6. Feature list with priorities
Rank every feature as Must, Should or Could. Be strict: if everything is a Must, nothing is. Our article on MVP feature prioritisation shows how to cut with confidence.
7. Data model
List the main things your app stores (for example User, Company, Project, Invoice, Document) and how they relate. A rough sketch is enough; the aim is to surface questions like “can one user belong to several companies?” before they become expensive. Read about database design mistakes that break apps at scale to see why this matters.
8. Integrations
Name every external service: payments, email, SMS, calendar, CRM, AI provider, analytics. For each, note what data moves and in which direction. Integrations are a leading cost driver, so list them honestly.
9. Non-functional requirements
Capture the qualities that are easy to forget: security and privacy, expected number of users, performance expectations, accessibility, languages, data residency and compliance obligations.
10. Risks, assumptions and open questions
Write down what you do not know. “Assumption: users will accept email login.” “Open question: do we need an iOS app at launch?” Unanswered questions that are visible are cheap; those found during the build are not.
A mini example
| Item | Example entry |
|---|---|
| Problem | Independent coaches track client sessions in spreadsheets and lose follow-ups. |
| Users | Coach (admin), Client (limited view) |
| Must have | Client profiles, session notes, scheduling, reminders |
| Should have | Payment links, progress charts |
| Out of scope v1 | Video calls, native mobile app, team accounts |
| Success metric | Coach logs a session in under 60 seconds |
From PRD to estimate
With a PRD in hand, estimation becomes a counting exercise. Count the user flows, the integrations, whether you need web, mobile or both, and how complex the data is. Those four factors are what move the price of a Bubble.io build. If you want to see realistic numbers, read our MVP cost breakdown.
Common PRD mistakes
- Writing a wish list. Without priorities, the document cannot be estimated.
- Skipping the “out of scope” list.
- Describing solutions instead of problems. “Add a dashboard” says little; “managers need to see overdue tasks at a glance” says more.
- Ignoring edge cases. What happens when payment fails, a user is deleted or a record is duplicated?
- Treating the PRD as frozen. It should change, but changes should be deliberate and re-estimated.
Frequently asked questions
How long should a PRD be?
Long enough to remove ambiguity and short enough that people read it. For an MVP, five to fifteen pages is typical.
Can I write one with AI assistance?
Yes, AI is useful for structuring and spotting gaps. But the decisions about users, scope and priorities must come from you, because they depend on knowledge of your market.
Do I need a PRD if I am building the app myself?
Yes. It will save you from rebuilding screens when you realise a user role was missing.
Get one written for you
If you would rather have an expert shape the document with you, the SA Solutions Discovery Sprint produces a full PRD with scope, user flows, architecture and a cost and timeline estimate, delivered through working sessions with a certified Bubble.io developer. The sprint fee is credited toward the build if you go ahead. You can start with a free 30-minute Idea Audit.