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SaaS Development for Startups

Get a launch-ready SaaS faster — without agency overhead.
Built on a battle-tested SaaS boilerplate trusted by 1,200+ founders.

"Gravity provided the foundation to jumpstart my SaaS product. The attention to detail, thoughtful approach, and creative inclination provided the most ideal outcome. In my capacity as a UX Lead at Apple I've worked with countless engineers — of which Kyle stands ahead of the pack. I hope to continue leveraging Gravity long into the future."

How SaaS Development Works

Our step-by-step process for building your custom SaaS application.

1

Request a Call

Fill out the short form so I understand what you’re building.

2

Scoping + Estimate

I’ll reply with questions, and if it’s helpful we’ll do a quick call. You’ll then receive a clear estimate and plan.

3

Pay Deposit

You pay a 30% deposit, we start building your app.

4

Launch

You get a market-ready SaaS app ready for launch.

Payment plans are flexible depending on the size of your project. Typically these are a 30% deposit, 30% halfway and 40% balance on delivery.

SaaS Development – What You Get

What's Included

  • Custom SaaS application development for startups.
  • Senior-engineered code: reviewed, tested, documented.
  • Built on a mature boilerplate tested by 1,200+ customers
  • Fast delivery and predictable costs
  • Custom branding with your logo and colours.
  • Deployment to your preferred platform (Heroku/Vercel/AWS).
  • SaaS admin dashboard.
  • IP ownership (excluding the boilerplate code).

What's Not Included

  • External UI kits – We use Gravity UI (Shadcn) for speed and consistency. Colours are tailored to your brand.
  • Content + copywriting – You provide content; we can advise on structure.
  • Ongoing growth marketing – This is product build + launch support.
  • Complex infra/DevOps – If you need a bespoke setup, we’ll hand off the code for your team to deploy.

Benefits of Our SaaS Development Approach

Why choose Gravity over an agency?

Save Money

Your SaaS is built with the Gravity SaaS boilerplate that includes authentication, billing, UI and much more already built.

Reduce Risk

The SaaS boilerplate has already been commercially tested by 1,200+ customers and is mature and robust.

Fully Loaded

Your app comes with everything you need to launch and manage your SaaS, including Mission Control to view metrics, manage users and more.

High Quality

Your app is built by a UK company and future-proofed with the latest technologies. Beyond development you also get access to support and a Discord community.

Mini Case Study: Mogl.com

From idea to launch-ready SaaS.

Mogl.com helps brands and agencies take control of programmatic advertising,retail media, and data/measurement. We built Mogl's SaaS application from the ground up using our SaaS boilerplate as a foundation.

That meant we could move fast on the things that matter (product workflows, UX, and differentiating features) while relying on proven building blocks for auth, billing, and admin.

The process: scope the MVP, ship in milestones, keep everything deployable throughout, and hand over a clean codebase you can keep evolving.

  • Scoping + feature prioritisation
  • Brand + UI implementation
  • Core product workflows built bespoke
  • Admin + operational tooling
  • Deployment + handover
"I am thrilled! Not only with the boilerplate solution, but with Kyle. We are currently having a complete SaaS application developed and not only are we saving time (and money) by using the SaaS boilerplate, but we are also benefiting from a reliable solution. I can rely on everything working smoothly and no longer have to worry about bugs.

Why Work With Gravity?

Kyle Gawley working on laptop

Kyle Gawley Gravity Founder

  • 20 years commercial experience.
  • Served on startup boards as a technical advisor.
  • Mentored hundreds of startups on accelerators.
  • Spoken at conferences across the world.
  • 1,200+ people using my boilerplates.

Request a Call

Share a few details and we’ll decide next steps.

Frequently Asked Questions

How much does custom SaaS development cost?
Do I own the source code?
How long does SaaS development take?
What are the benefits of using your SaaS development service?
What's not included?
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When will I get the code?
What if I miss a payment?