SaaS and MVP development
MVP development services for SaaS founders and startups
By Yash Soni, Founder & CEO, Apex36Updated
In short
Apex36 is an MVP and SaaS development company. We build the first version of your product with auth, billing, the core workflow, AI features where they help, and a deploy you own. MVPs start from $5,000. We also build and run SaaS products of our own, so the advice comes from shipping and running software.
Key facts
| Starting price | MVP from $5,000 |
|---|---|
| Typical timeline | Discovery typically in under a week; first shippable milestone typically in 1 to 3 weeks |
| Engagement model | Fixed-scope MVP, then a monthly team as you grow |
| Markets | US, UK, Australia, Singapore, UAE |
| Stack | Next.js, React, TypeScript, Node.js, Python (FastAPI), PostgreSQL, MongoDB, AWS, GCP |
MVP development services
An MVP should answer one question: will people use and pay for this? We cut the scope to the workflow that answers it, build that properly and leave the rest for later. You get a working product on your own domain and cloud account, with the code in your repository.
- Auth, roles and accounts
- Billing and plans
- The core workflow and an admin view
- Analytics, error tracking and a deploy pipeline
AI MVP development
If AI is the product, the MVP has to prove the AI part works on real input. We build it with an evaluation set from day one, so you know how often it is right before users see it. Lang AI Tutor, Mappie AI and Water Advisor AI are AI products we worked on from their first versions.
SaaS development company for the next stage
After the MVP, the work changes: multi-tenancy, permissions, integrations, performance and support tooling. We stay on as a monthly team or hand over to your hires with documentation and a clean codebase.
Startup software development, week by week
You see progress every week: a demo, a written changelog and a short list of what is next. Scope changes are written down before they are built, so cost and timeline stay visible.
Built to be found
Most SaaS products we build ship with technical SEO in place: server-rendered pages, metadata, schema and a sitemap from the first release, so the marketing site and app are ready for Google and AI answers on launch day. See AI SEO for the full service.
MVP pricing
An MVP starts at $5,000 for one core workflow with auth and deploy. Billing, AI features, integrations and a separate admin app move the price up. You get a fixed quote in writing after discovery.
Proof from our work
EdTech · Voice AI
Lang AI Tutor
An AI-avatar language tutor. The client's tutor signed 10+ UK schools in its first 3 months, with no outside funding.
Read the case studyEnvironmental · LLM
Water Advisor AI
An MVP for a US founder: an address resolves to the local water quality report, and an LLM turns it into plain advice. Serverless AWS backend.
Read the case studyDevTools · PM AI
Mappie AI
An AI product management copilot that turns requirements into dev-ready stories. Apex36 worked on it from idea to a live product at mappie.ai.
Read the case studyBrandGen (our own product)
A brand-consistent AI image generator we build and run ourselves, live since January 2026.
Visit the siteEdTech · Multi-Product
Basira
EdTech products for one client over a multi-year build, from K-12 to higher education.
Read the case study
What clients say about working with us
“Willing to discuss ideas and recommend technical solutions rather than simply taking instructions... challenges assumptions when appropriate, and focuses on creating a scalable solution instead of quick fixes.”
“Amazing work, really dedicated to do good work and loves to think along about product improvements.”
Frequently asked questions
At Apex36, an MVP starts at $5,000 for one core workflow with auth and a deploy you own. Billing, AI features and integrations add to that. You get a fixed quote in writing after a short discovery.
Discovery typically takes under a week and the first shippable milestone typically lands in 1 to 3 weeks. A full MVP takes longer depending on scope; you see a demo every week.
Yes. The code lives in your repository and the app runs in your cloud account from day one. There is no lock-in and no licence fee.
Yes. We build AI MVPs with an evaluation set from the start, so you know how well the AI part works before users see it.
MVPs are fixed-scope and fixed-price once discovery is done. After launch, most clients move to a monthly team.
We can stay on as a monthly team for new features, monitoring and fixes, or hand over to your own developers with documentation.
Usually Next.js and React on the front end, Node.js or Python (FastAPI) on the back end, PostgreSQL or MongoDB, deployed on AWS or GCP. We adapt to your stack if you have one.
Find out what to build first
Start with the free AI readiness assessment and get a written report by email, or book a 30-minute strategy call with the founder.