A SaaS MVP can cost anywhere from a few thousand dollars to well over $100,000, and published guides quote ranges that wide because “MVP” means very different things. The price is driven by a handful of factors you can control: how many workflows and user roles you need, whether you take payments at launch, how many systems you integrate with, how much custom design you want, and whether AI features are involved. This guide explains each driver, gives worked examples with their assumptions stated, and covers the costs that start after launch.
Key takeaways
- Scope sets the price. Roles, workflows, integrations and billing matter far more than the number of screens.
- “From” prices are floors, not quotes. Any honest estimate depends on a written scope.
- Running costs are real. Hosting, services, AI usage and maintenance continue every month.
- An AI prototype changes the maths. It can lower build cost but moves effort into hardening.
Prices in this article reflect Tegnol’s published pricing as of October 2026, for projects being planned into 2027. They are starting points for well-defined scopes, not fixed quotes for every product.
What actually drives the cost
| Driver | Lower cost | Higher cost |
|---|---|---|
| Core workflows | One main thing users do | Several connected workflows |
| User roles | One type of user | Owners, admins, members, external users |
| Accounts | Individual accounts | Teams or organisations with invitations and permissions |
| Billing | Payment link or none at launch | Self-serve subscriptions, trials, usage-based pricing |
| Integrations | None, or one well-documented API | Several systems, legacy APIs, two-way sync |
| Data | New data created in the app | Imports and migrations from existing systems |
| Design | Clean, consistent UI from a component library | Custom brand, illustration, motion, design system |
| AI features | None | Assistants, agents or retrieval over your documents |
| Compliance | Standard good practice | Regulated data, audits, enterprise security reviews |
Notice what is missing: the number of screens. A product with twenty simple screens over one data model can cost less than one with five screens that coordinate payments, permissions and an external system. Complexity lives in the rules behind the interface.
The parts that are easy to underestimate
- Authorisation. Logging in is cheap. Making sure each role can see and do exactly the right things everywhere is not.
- Billing edge cases. Upgrades, downgrades, failed payments, refunds and tax all need handling, not just the happy-path checkout. Stripe’s overview of how subscriptions work shows how many states a subscription can be in.
- Empty, loading and error states. Every screen needs them, and they are usually missing from early designs.
- Testing, deployment and monitoring. Invisible to users, essential to keeping the product up.
Worked examples
These examples use Tegnol’s published starting prices to show how scope changes cost. Each assumes the scope is agreed in writing before work starts; your quote depends on your actual requirements.
Example 1: A focused single-workflow SaaS
Assumptions: individual accounts, one user role, one core workflow (for example, creating and sharing reports), transactional email, no billing at launch, a clean interface built from an established component library.
This is close to our SaaS MVP Development starting point of $3,000, typically built over four to eight weeks. Adding a dedicated UX/UI design phase (from $1,500) makes sense if the workflow is new to users or the market is design-sensitive.
Example 2: A team product with subscriptions
Assumptions: organisations with invitations, three roles, two connected workflows, self-serve Stripe subscriptions with a customer portal, an admin view, and one integration with a well-documented API.
Expect this to sit well above the starting price, because tenancy, roles and billing each add real engineering. A typical breakdown would be the core build, a design phase, and an integration (our API & System Integration service is $500 to $1,500 per defined integration). The exact figure comes from a written scope.
Example 3: You already have an AI-built prototype
Assumptions: a working prototype from Lovable, Bolt or a similar tool that users have tried, with the data model broadly right but no tests, secrets in the frontend, and preview-only configuration.
Here the job is not to build from scratch but to make what exists production ready. Our Production Sprint starts from $2,000 over two to four weeks. If the assessment shows the foundations need rebuilding, the cost moves towards a new build; we explain how to decide in when to rebuild an AI-generated app instead of fixing it.
Example 4: An MVP with an AI feature
AI adds both build cost and running cost. An assistant that answers from your own documents (retrieval-augmented generation) starts from $2,000 with us; an AI agent that takes actions in other systems is typically $2,000 to $5,000, before model usage fees. Our guide on building an AI knowledge assistant from your documents explains what goes into one.
Costs after launch
The build is not the last bill. Budget monthly for:
- Hosting and database. Often modest at MVP scale on managed platforms, rising with traffic, storage and backups.
- Third-party services. Email delivery, error tracking, analytics, authentication if outsourced, and payment processing fees on every transaction.
- AI usage. Billed per request or token, so it grows with users. Set spending limits from day one.
- Maintenance and iteration. Dependency updates, security patches, bug fixes and the features your first customers ask for. Our Growth Partner plan starts from $1,500 per month for teams that want ongoing engineering.
The AWS Well-Architected Cost Optimization Pillar is a useful framework once infrastructure costs become noticeable, and our guide to reducing SaaS infrastructure costs covers the practical steps.
How to keep the first version lean
- Pick the one workflow that proves customers will pay, and build only that well.
- Start with a single user role if you can; add roles when customers need them.
- Use managed services for authentication, payments and email instead of building your own.
- Defer integrations nobody has asked for yet; a CSV import often covers the first months.
- Use a consistent component library rather than designing every element from scratch.
- Charge manually for the first few customers if it lets you launch sooner, then automate billing.
How to get a quote you can trust
Ask any developer or agency for a written scope that lists features, roles, integrations and what is excluded, plus milestones and what happens if the scope changes. A suspiciously low number with no scope behind it is usually a future change request. Our guide to choosing a SaaS development agency lists the questions worth asking before you sign.