SaaS Development Company for Founders Who Need to Ship
Revex is a SaaS development company that builds production-grade web apps on a modern stack — Supabase, Vercel, Next.js — and ships them in weeks instead of quarters. Multi-tenant auth, Stripe billing, and a real admin panel come standard.
What We Build as a SaaS Development Company
Most "SaaS" projects fail before launch because the team underestimates the boring parts: auth, billing, role-based access, an admin panel that doesn't melt at 10,000 rows. We build all of it.
Common SaaS builds we ship:
- Vertical SaaS — niche tools for a specific industry (legal ops, dental practices, fitness studios, indie media). Usually replaces a spreadsheet plus three SaaS subscriptions.
- B2B workflow tools — internal apps your customers' ops teams will live in 8 hours a day. CRUD-heavy, permission-heavy, performance-sensitive.
- AI-powered SaaS — products with LLM workflows, RAG, agent orchestration, or vector search baked into the core experience. We've shipped a lot of these in 2025-2026.
- Marketplace & two-sided platforms — supply, demand, matching, payments, payouts. The hard part is rarely the UI.
- Internal tools graduating to SaaS — you built a tool for your own team, three customers asked to buy it, now you need it to scale.
If your idea fits one of those, we can usually scope a v1 in a single call.
Scope — What's in a Production SaaS v1
Every SaaS we ship includes the unglamorous foundation that lets a product actually grow:
- Multi-tenant data model — workspaces, orgs, or accounts depending on what fits your customer
- Auth & RBAC — email, magic links, SSO when you need it, granular roles
- Stripe billing — subscriptions, plan tiers, trials, usage-based when it makes sense
- Admin panel — so your team can actually run the business without engineering tickets
- Onboarding flow — the first 5 minutes that decides whether your customer ever logs back in
- Email & notifications — transactional and product emails, in-app notifications
- Observability — logs, errors, basic analytics so you know what's working
Most SaaS development agencies will quote you for "the app." We quote you for the actual business. Anything you don't need in v1 we cut — but we tell you which cuts will cost you later.
Architecture and Stack — Supabase + Vercel, Picked on Purpose
We've shipped on a lot of stacks. The one that wins for early-stage SaaS in 2026 is Supabase plus Vercel. Here's why:
Supabase as the backbone
- Postgres you actually own — no vendor-locked NoSQL you'll regret at scale
- Row-Level Security for multi-tenant isolation done right
- Auth, storage, edge functions, and realtime in one place
- Self-hostable if you ever need to move
Vercel for the frontend
- Next.js App Router, server components, edge runtime where it helps
- Preview deploys per branch — your stakeholders see every change before merge
- Zero-config CDN, image optimization, and analytics
The rest of the toolbox
- Stripe for billing
- Resend or Postmark for transactional email
- Inngest or Trigger.dev for background jobs
- Sentry for error tracking
- PostHog for product analytics
This stack is boring on purpose. Boring means your engineers — ours or yours — can move fast without inventing new failure modes every sprint. It also means hiring is easy when you outgrow us.
For fintech-specific products with PCI, KYC, or banking partner requirements, the stack shifts. See our fintech app development page for that flavor.
Process and Timeline
We run a tight cycle. No 6-week discovery, no 30-page PRDs, no Gantt charts that lie.
Week 0 — Scoping call (free)
60 minutes. We pressure-test the idea, lock the v1 scope, and tell you honestly if we're the wrong fit.
Weeks 1-2 — Design and data model
Figma flows, a real Postgres schema, auth and billing decisions locked. You see clickable prototypes by end of week 2.
Weeks 3-6 — Build
We ship to a staging URL daily. Weekly demo. You and your customers can poke at it before launch.
Week 6-8 — Polish, ship, hand off
Production deploy, billing live, docs written, your team trained on the admin panel. Then we either move to support or hand the codebase fully to your engineers.
Typical SaaS v1 ships in 6-8 weeks. Smaller scopes — internal tool, MVP for fundraising — can compress into our 4-week MVP track at $10K. Web app builds run $16,500. Web + mobile run $22,500.
After launch, ongoing support is a monthly retainer (1-4 sprints/month) — or we hand you a clean codebase and walk away.
Why Founders Pick Revex Over a Bigger SaaS Development Agency
Three honest reasons:
- We ship. Most agencies in this space win on sales and lose on delivery. We do the opposite. Our reputation is the codebase we leave behind.
- Senior people only. No bait-and-switch to junior contractors after the contract signs. The person who scopes your project is on it through launch.
- You own everything. Repo, infra, accounts, design files. We're a SaaS development company, not a hostage situation.
The downside, in fairness: if your scope needs a 40-person team — enterprise core banking, healthcare EHR migrations, anything with a 12-month compliance review — we're not the shop. We're built for the 6-8 week build, not the 18-month integration.
SaaS Development FAQ
How much does a SaaS MVP cost in 2026?
A real production-grade v1 with auth, billing, and an admin panel runs $10K-$25K with us depending on scope. Agencies quoting $80K-$200K for the same thing are usually padding for waterfall, account management overhead, or both. Lower than $10K and you're getting a Lovable prototype with no support — fine for testing an idea, not for taking payments.
How long does it take to build a SaaS product?
4 weeks for an MVP, 6-8 weeks for a full v1 with billing and admin, 10-12 weeks if you need iOS/Android too. Anyone quoting 6+ months for a v1 is either solving a much harder problem or running up the bill.
Do I own the code?
Yes. Repo, infra, Stripe account, Supabase project — all yours from day one. We just have access while we're building.
Can you work with my existing team?
Yes. We pair with in-house engineers regularly. Sometimes we build the foundation and they take over; sometimes we backfill a hiring gap for a sprint or two.
What if I don't know what stack I want?
Then we pick. For 90% of SaaS products in 2026, the right answer is Supabase + Next.js on Vercel. We'll tell you when it isn't.
Do you do design too?
Yes. In-house product design is part of every build. We don't subcontract it.
What happens after launch?
Two options: a monthly support retainer ($4K-$8K+/mo depending on sprint volume), or a clean hand-off to your team. No lock-in either way.
Ready to Build?
If you have a SaaS idea that needs to ship — not "explored," not "validated for six months," shipped — we should talk.