SaaS MVP & Product Development
The smallest version of your product that can prove the idea with real users - plus the logins, tenants and billing every SaaS needs anyway, on a stack you own from the first commit.
A first version scoped to prove one thing, on code worth keeping.
An MVP is an experiment with a user interface. For a startup, or an established business testing a new product, its job is to answer the question everything else depends on - will people use this, will they pay for it, does the workflow survive real data - as cheaply as that question can honestly be answered. Anything that doesn't help answer it can wait.
That makes scope the most important decision in the project, and the one we spend the most time on before writing code. The usual failure isn't a bad build. It's a good build of too much, launched long after the first real user could have told you something useful.
Small doesn't mean disposable, though. Accounts, organizations, permissions and billing are painful to retrofit, so they're built properly from the start, in Next.js, NestJS and PostgreSQL - mainstream TypeScript tools an in-house team can hire for and take over.
What's included
- MVP scoping & feature prioritization
- Next.js web app & landing pages
- NestJS API, webhooks & background jobs
- PostgreSQL & Prisma data layer
- Sign-up, login & team invitations
- Multi-tenant organizations & roles
- Stripe subscriptions & billing
- Admin tools, transactional email & analytics
What goes into a SaaS MVP, and what to leave out
One test settles most of it: if this feature disappeared, would the MVP still answer its question? If it would, the feature waits. Applied honestly, that cuts most wishlists down hard, leaving one workflow done well, the foundations every SaaS needs, and very little else.
Sometimes the honest answer is that the first version shouldn't be custom software at all. If the question is whether anyone wants the service, a landing page with a manual process behind it can answer that for far less. If the users are your own team or a known set of clients, Zoho Creator may get you there faster. We'd rather say so before you spend the budget.
In: the core workflow
The one job a user comes to do, start to finish, on real data - built properly, because it's the thing being tested.
In: what makes it a business
Sign-up, organizations, permissions, billing and the emails around them - the parts that are expensive to bolt on later.
Out, for now
Native mobile apps, integrations nobody has asked for, settings for everything, and the second and third types of user. Each goes on a written list, so leaving it out is a decision rather than an oversight.
Done by hand at first
Onboarding, refunds and unusual requests can often be handled manually for the first customers, then automated once you know which ones keep coming back.
Scoping the one workflow your MVP has to prove
We start from the assumption that would sink the product if it were wrong, not from a feature list. Usually it is one of three: that people feel the problem badly enough to change how they work, that they will pay what the business needs to charge, or that the workflow can be delivered with the data and integrations available.
The core workflow is then written as the steps a real user takes, with the data each step needs and what done looks like at the end. That document is the scope. How you'll judge whether the MVP worked is agreed before the build starts, so the launch produces an answer rather than an opinion.
The user and the job
Who uses it first, what they are trying to get done, and what they use instead today.
The steps and the data
Each screen or action in order, what it reads and writes, and the rules it has to follow.
The measure of success
The signals that will show it worked - accounts that reach the core workflow, workflows completed, trials that become subscriptions.
What every SaaS needs anyway: accounts, tenants and billing
Some features are the price of being a SaaS product at all. Nobody signs up for them, everyone notices when one is missing or broken, and most are far harder to add later than to build first. So they're part of every MVP we build, kept as simple as the product allows.
Authentication
Sign-up, login, password reset and email verification, with social login or single sign-on when your customers need it. Built on a proven library or service, because authentication is the wrong place to be original.
Multi-tenant organizations
Customers belong to organizations, invite colleagues and hold roles within them. Every record is scoped to its organization in the database itself, so keeping customers apart doesn't depend on every query remembering a filter.
Stripe subscription billing
Plans and trials, using Stripe's hosted checkout and billing pages where they fit. Webhooks keep your database in step with Stripe, and they are handled idempotently, because the same event can arrive more than once.
Admin and email
A plain internal screen to look up customers and fix accounts, plus transactional email - invitations, receipts, password resets - sent through a dedicated provider, with SPF and DKIM set up on your domain.
A SaaS stack that survives past the MVP
MVPs are often built on whatever is quickest that month and thrown away once the product takes off - a rewrite that lands just as customers arrive and the team has the least time to spare. Our default is chosen to avoid that: Next.js for the web app, NestJS for the API, PostgreSQL with Prisma for the data, and TypeScript from end to end. None of it is exotic, which matters most on the day you hire your first developer.
Next.js for the product and its marketing pages
One codebase, with server rendering where search engines need to read the page. This website is built with Next.js too.
NestJS for the API
Modules and dependency injection give business rules, webhooks and background jobs an obvious home, which keeps a growing backend organized once several developers work on it.
When we'd use less
If the backend is light, Next.js alone can carry an MVP without a separate NestJS service, and we'll suggest that. The split earns its keep with background jobs, heavy webhook traffic, more than one client app, or a team working on the API.
From MVP to v1
Launch is where the useful information starts. The first users show you which parts of the workflow they use, where they get stuck, and what they ask for that nobody predicted. Version one is planned from that evidence, which often means cutting something you were sure of and building something that wasn't on the list.
We maintain software of our own, including a Zoho CRM extension shipped in versioned releases, so life after launch is familiar ground: release notes, support questions, and changes made without breaking things for the customers already relying on them.
Instrumented from day one
Product analytics on the core workflow and error tracking across the app, so you see what users do and what breaks without waiting to be told.
Hardening what proved itself
The parts that earned their place get more tests, monitoring and performance work. The parts that didn't are removed rather than maintained.
The deferred list, revisited
Mobile, integrations, extra roles and self-serve settings come back for a decision once there is evidence for or against each one.
Code ownership and handover
You own everything from the first commit. The repository, the hosting and database accounts, Stripe, the domain and the email provider are set up in your name, with us invited as collaborators - so if we stopped working together tomorrow, there would be nothing to transfer.
Handover is planned, not improvised: a README that gets a new developer running locally, notes on the main decisions and why they were made, automated tests on the paths that would hurt to break, and a walkthrough of the codebase. Whether you hire an in-house team, keep us for the larger changes, or both, the next developer starts from documentation instead of guesswork.
What you get out of it
Outcomes that matter to your business - not just features.
Real users sooner
Scope cut to what proves the idea, so people are using it before the budget goes on guesses.
Foundations that last
Logins, tenants and billing built so the next version extends them instead of replacing them.
A stack you can hire for
Next.js, NestJS and PostgreSQL in TypeScript - widely used and well documented.
Yours from the first commit
Code, accounts and credentials in your name from day one, not at handover.
How we deliver this service
Find the riskiest assumption
What has to be true for the product to work, and which of those things you're least sure of.
Scope one workflow
The single path a user takes to the core value, written as steps - with a list of what is deliberately left out.
Lay the foundations
Accounts, organizations, permissions and billing first, so every feature after them is built on the real thing.
Build in weekly slices
Working software on a staging link every week, so you can show it to users before the scope is finished.
Launch, measure, decide
Release to the first users, watch what they actually do, and choose the next slice from evidence rather than the original wishlist.
You might also need
SaaS MVP - FAQs
The questions we are asked most about SaaS MVP.
Ready to start? Let's scope it.
Book a free discovery call and we'll map out exactly how this can work for your business.