Your Idea. Live in 30 Days.
A working app, deployed and ready for real users — at a fixed price you agree to upfront. No hourly billing, no surprise invoices, no scope creep.
What's included
A Real Product — Not a Mockup
Every deliverable is production-ready. You'll get something you can hand to an investor, send to your first customers, and build on as you grow.
- User authentication and accounts.
- Secure sign-up, login, and user management — the foundation every app needs, done right from day one.
- Your core features, fully working.
- We scope your 3–5 must-have features together, then build them end-to-end. Not a demo. Not a wireframe. Functional software.
- Deployed on production infrastructure.
- Your app goes live on real hosting — not sitting on a laptop somewhere. Your users can sign up the day we hand it over.
- Basic analytics and usage tracking.
- Know who's using your product and how. Included by default so you have real data from day one, not guesses.
- Full code ownership on handoff.
- You get everything — source code, deployment credentials, and documentation. No lock-in, no ongoing dependency on us to keep the lights on.
- A stack built to scale with you.
- Built with Elixir/Phoenix or Astro — proven technologies that won't need a full rewrite the moment you get traction.
Why Cobalt Sentry
Experience meets modern delivery
- 20+ Years Shipping Software
- Elixir, Phoenix, Swift, and Astro in production. Not a generalist shop that Googles your stack after the contract is signed.
- Fixed-Price, No Surprises
- You know the cost before we write a line of code. No hourly billing, no scope creep invoices, no "we need another sprint."
- You Own Everything
- Full source code, deployment credentials, and documentation on handoff. No lock-in, no retainer required to keep the lights on.
Why Cobalt Sentry
The Other Options Have Real Drawbacks
Hiring a full-time dev
$120k–$180k salary before you have a single user. Months of recruiting, onboarding, and ramp-up time. You're burning runway before you've validated anything.
No-code tools
Great for landing pages. Rough for real apps. You'll hit hard limits the moment your product has any custom logic — and migrating off is painful and expensive.
Offshore agencies
Unpredictable quality, communication gaps, and hourly billing that balloons. You often spend more fixing problems than you saved going cheap.
The process
30 Days, Four Milestones
No black box. You see progress every week and have the chance to give feedback before the next phase begins.
- 1
Scoping Call — Day 1
A 45-minute call to nail down your core features, target users, and success criteria. You leave with a fixed price and a signed project agreement — no ambiguity.
- 2
Design & Build — Weeks 1–3
We build in your shared staging environment. You can log in and click around at any time. Weekly check-ins keep you in the loop and give you a chance to course-correct early.
- 3
Testing & Polish — Week 4
The final week is dedicated to edge cases, bug fixes, and making sure everything holds up under real conditions — not just the happy path.
- 4
Launch & Handoff — Day 30
Your app goes live. You get the full code repository, deployment credentials, and a walkthrough so your team knows how everything works.
Common questions
Questions Founders Usually Ask
- What if my idea changes mid-project?
- Small refinements are normal and expected. Major pivots are handled through a change order with a clear impact on scope and timeline — agreed to before work continues. No hidden charges.
- Can I show this to investors?
- Yes. You get a live, working app on a real domain — not a Figma file or a demo video. Investors can log in and use it just like a real user would.
- What happens after launch?
- You own everything. Most founders take some time to get user feedback, then come back for a second phase of features. We're here when you need us — no retainer required.
- Do I need to be technical?
- Not at all. We translate your business requirements into a technical plan and explain decisions in plain language. If you can describe the problem your product solves, we can take it from there.
- What if 30 days isn't enough?
- We scope every project to fit the timeline. If your idea genuinely needs more time, we'll tell you upfront during the scoping call — not on day 28. Bigger projects get a realistic timeline before we start.
- What's the payment structure?
- 50% at project kickoff, 50% at launch. No hourly invoices accumulating in the background. You always know exactly what you're spending.
Fixed-Price MVP Development
Fixed-price projects, no hourly rates. Get a detailed quote tailored to your specific requirements.
Ready to get started?
Get in touch to discuss your project and receive a detailed proposal within 24 hours.
Start Your Project
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