SaaS MVP Development Process: How It Works at Devs & Logics

By Muhammad Talha, Founder & Lead Engineer

Devs & Logics is a US-focused software development agency that builds SaaS MVPs for startup founders. This page walks through our SaaS MVP development process from the first discovery call to the end of post-launch support, so you know what happens, what it costs, and what we need from you before you commit.

Most MVP projects stall for predictable reasons: scope creeps quietly, quotes double midway, and founders see working software only at the very end. Fixed pricing, weekly demos, and approval gates are how we prevent all three. For a broader look at what we build, see our SaaS MVP development services.

Our SaaS MVP Development Process at a Glance

Six phases follow discovery, and each one ends with your written approval. Durations are typical and scope-dependent; your exact schedule is fixed in your quote.

Discovery: The First Step of Our SaaS MVP Process

Discovery is a fixed-price engagement of one to two weeks that turns your idea into a build-ready plan. It costs a flat $499, and that fee is credited toward your MVP build when the build starts within 30 days.

We run it before any production code because changing a wireframe takes minutes, while changing shipped code takes weeks. It also protects you from four common MVP killers: features nobody asked for, estimates that double, architecture that breaks after a few hundred users, and surprise hosting, API, and AI bills.

Week 1: understand and define

1. Kickoff workshop (60 minutes): your vision, target users, business model, and the three to five numbers that define success.
2. Competitor scan: what similar products do well and where your edge sits.
3. User personas: who uses the product and what they need from it.
4. Feature prioritization: every feature sorted into Must have, Should have, Could have, or Later.
5. User flows: the key paths mapped, from sign-up and onboarding to the core action and billing.

Week 2: design and plan

1. Wireframes: low-fidelity layouts of up to 10 core screens.
2. Wireframe review (45 minutes): you give feedback, and one revision round is included.
3. Technical architecture: stack, system design, data model, integrations, and key risks.
4. Running cost estimate: expected monthly hosting, API, and AI costs at launch.
5. Sprint roadmap and fixed quote: the build split into sprints, with a fixed price and delivery date.
6. Final walkthrough (45 minutes): we review everything together and hand over every file.

Founders with a prototype or a tightly focused product can run both stages in a single week. You still receive the architecture, cost estimate, and fixed quote.

What you walk away with

You own all seven deliverables whether or not you build with us.

A clickable Figma prototype is available as an optional add-on, quoted separately.

Who discovery is for

• Non-technical founders with a market and an idea but no spec yet
• Founders holding a prototype from Bolt, Lovable, Replit, or Bubble who need a production-ready version
• Funded teams that need a defensible scope and budget before committing capital
• Founders comparing agencies whose quotes differed wildly and who need one defined scope to compare against

If you already have a complete spec, designs, and architecture, you can skip discovery and go straight to the build.

Phase 1: Project Kickoff and Setup (2 to 3 Business Days)

Kickoff locks in the plan and gives you full visibility into the project before any design or code begins.

You approve the project plan and the access setup.

1. Agreement and first payment: we sign the development agreement (and an NDA if needed) based on the fixed quote from discovery.
2. Kickoff call (60 minutes): we confirm scope, priorities, launch date, and who is involved on both sides.
3. Workspace: a shared Slack channel (or your preferred tool) and a project board in Linear, Jira, or ClickUp holding every task from the sprint roadmap.
4. Code and design access: a GitHub repository and a Figma file, both owned by your organization, with our team invited as collaborators.
5. Environments: development and staging environments you can open at any time to check progress.
6. Accounts checklist: the third-party accounts (hosting, domain, email, payments, analytics) to create in your name, so you own everything from the start.

You leave this phase with a visible project board, working access to the repository, Figma file, and staging link, and a final timeline with dates for each phase and payment.

Phase 2: UI/UX Design (1 to 2 Weeks)

Design turns the discovery wireframes into a polished, consistent interface, so developers build from an approved design instead of guesswork.

You sign off on the final high-fidelity designs.

1. Design direction (days 1 to 2): two mood boards covering color, typography, and visual style, based on your brand or built from scratch. You pick one.
2. Design system: reusable buttons, forms, tables, cards, modals, and navigation, plus colors, spacing, and type styles, so every screen stays consistent and builds faster.
3. High-fidelity screens: every MVP screen designed in Figma for desktop, with mobile layouts for responsive web.
4. States and edge cases: empty, loading, error, and success states, the details most MVPs skip.
5. Clickable prototype: the core user journey linked in Figma so you can click through it like a real product.
6. Design review (60 minutes): we walk through the screens together, and you comment directly in Figma.
7. Revisions: two rounds are included, followed by final approval.
8. Developer handoff: specs, assets, and component notes prepared so development starts without delay.

You receive the complete Figma file with the design system and every MVP screen, the clickable prototype, and exported assets ready for development. All of it belongs to you.

Development of a screen starts only after you approve its design. Changes after approval follow the change request process described below.

Phase 3: Development in One-Week Sprints (4 to 8 Weeks)

We build in one-week sprints so you see working software every week instead of a big reveal at the end.

You approve each sprint demo, then the feature-complete product on staging.

How a sprint runs

1. Planning (Monday): we confirm the week's tasks from the roadmap and post them on the project board.
2. Build: developers work on each task in its own branch.
3. Daily written update: a short Slack note covering what was done, what comes next, and any blockers.
4. Code review: a second senior developer reviews every change before it merges.
5. Staging deploy: finished features go live on your staging link the same day they merge.
6. Sprint demo (Friday, 30 minutes): we show what was built, and you test it on staging.
7. Feedback loop: small fixes join the next sprint, and anything new goes through the change request process.

Typical build order and tech stack

1. Foundation: project setup, database design, authentication (sign-up, login, password reset, roles), and the app shell.
2. Core features: the Must-have features from discovery that deliver your product's main value.
3. Integrations: payments and subscriptions (for example Stripe), email, file storage, third-party APIs, and AI features.
4. Admin and settings: user management, account settings, billing pages, and an admin dashboard.
5. Polish: responsive layouts, performance tuning, and final UI details matched to the approved designs.

We use the stack agreed during discovery. A typical SaaS MVP combines Next.js or React on the frontend, Node.js on the backend, PostgreSQL or Supabase for data, and Vercel or AWS for hosting.

Throughout the phase you have full access to the code in your GitHub repository. To see what this process produces, browse our published case studies.

Phase 4: QA and User Acceptance Testing (About 1 Week)

Testing runs throughout development, then this phase adds a dedicated pass to catch everything before real users arrive.

You approve the product as ready for launch.

1. Full QA pass: every feature tested against the acceptance criteria from discovery.
2. Cross-device testing: the latest Chrome, Safari, Firefox, and Edge, plus iOS and Android phones.
3. Security checks: authentication, user permissions, data access rules, and protection of API keys and secrets.
4. Performance checks: page load speed and response times under realistic load.
5. User acceptance testing: you and up to five people you choose use the product on staging and report anything off.
6. Bug fixing: every reported issue is logged on the board, prioritized, and fixed.

We prioritize bugs by severity:

You receive a QA report listing what was tested, a bug log showing how each issue was resolved, and a staging build you have approved for launch.

Phase 5: Production Launch (2 to 3 Business Days)

We move the approved build to production with a checklist, so launch day stays calm and reversible.

You approve the live product.

• Production environment: hosting and database set up on your accounts, separate from staging.
• Domain and security: custom domain connected, SSL enabled, and secrets stored securely.
• Live services: payments switched from test mode to live and the transactional email domain verified.
• Monitoring: error tracking (for example Sentry) and uptime alerts, so we hear about problems before your users do.
• Analytics: product analytics tracking sign-ups and the success metrics defined in discovery.
• Backups: automatic daily database backups with a tested restore.
• Launch-day check: every key flow verified on production right after go-live, including sign-up, the core action, and payment.
• Rollback plan: the previous working version can be restored within minutes if something goes wrong.

Privacy policy and terms pages are published as part of the launch, using content you provide.

If a mobile app is in scope, we prepare store listings, build the release versions, and submit them to the Apple App Store and Google Play under your developer accounts. Store review usually takes one to seven days and is outside our control.

Phase 6: Handover and 30-Day Post-Launch Support

You own everything we build, and we stay on for the first month to keep the launch smooth.

You approve project closeout at the end of the 30-day window.

What you receive at handover

1. Code ownership: the full source code in your GitHub repository, with no locked dependencies on us.
2. Accounts and credentials: every account (hosting, database, domain, payments, email, analytics) in your name, with access confirmed.
3. Technical documentation: architecture overview, setup instructions, environment variables, and deployment steps.
4. Admin guide: a short guide for running the product day to day.
5. Handover call (60 minutes): a walkthrough of the code structure and documentation, recorded for your future developers.

What the 30-day support window covers

• Free fixes for bugs in the delivered scope
• Error and uptime monitoring, with alerts acted on within one business day
• Help with small configuration changes and launch questions

Your options after 30 days

How Pricing Works in Our SaaS MVP Development Process

The build price is fixed in your discovery quote, and you pay it in four parts, each tied to a milestone you have approved. You never pay far ahead of the work. For typical ranges by scope, see our SaaS MVP development cost guide. Figures are indicative and depend on scope.

Third-party costs such as hosting, domains, paid APIs, and app store fees are billed to your own accounts, so you see exactly what you pay for. If you are weighing engagement models, our fixed price vs. dedicated team guide explains when each one fits.

Change requests

New ideas are welcome during the build, and none of them changes your price or timeline without your written approval.

1. You share the idea in Slack or on the project board.
2. Within two business days, we assess the effort, cost, and effect on the launch date.
3. You choose a path: swap it for a feature of similar size (price and date stay the same), add it with approved extra cost and time, or park it in the post-launch backlog.
4. We update the board and timeline so the plan always matches what you agreed.

Small tweaks that take under an hour, such as label text or color adjustments, need no formal request.

Who Does What: Your Role and Ours

You make the product decisions, and we handle everything needed to design, build, and ship it. Your main contact is Muhammad Talha, Founder & Lead Engineer, who leads each project with a team of senior developers. Our team works remotely and overlaps with US business hours every working day, so questions get answered the same day.

How we communicate

Our definition of done

A feature counts as finished only when it matches the approved design on desktop and mobile, meets its acceptance criteria from discovery, handles errors, empty states, and invalid input, passes review by a second senior developer, is tested on staging, and has been demoed to you and accepted.

Every project also follows the same baseline: clean, documented code that any competent developer can pick up, encrypted passwords and role-based access, secrets kept out of the code, HTTPS everywhere, full Git history, and standard frameworks running on your own accounts, so nothing locks you in.

Frequently Asked Questions