MVP developmentPut a working product in front of your first testers.
MVP development for startups and small teams starts with a private MVP: agreed core flows that actually work, for a small invited test group. From $1,999 for the build, then from $299/week for hosting, both set by your feature set. It is for testing before a commercial launch, not for public sales.
The problemYou need to know it works before you launch it.
A clickable mockup only takes an idea so far. Before you invest in a commercial launch, you want the core of the product in the hands of a few real people and their feedback in yours. The private MVP is the stage built for that job, with a clear price and a clear limit.
A prototype shows the idea. It doesn't run it.A prototype is a real hosted interface you can click through and show, built on simulated flows and sample data. It is not live business operations. The private MVP is where the agreed core flows actually work.
Test first, then decide on the launchA small invited group tries the agreed working features and you gather feedback before investing in a commercial launch. The stage is made for validation, so it has no public sales and no open access.
Something real to showYou can use the private demo to explain the product in conversations with partners and investors. Access is arranged under your project's sharing rules, and funding or investment outcomes are not guaranteed.
What you getA working private MVP, scoped before we start.
If you are looking for app development for a startup, the private MVP is stage two of three in our packages: a working product for a small invited test group. We list the features with you, rate each one simple or complex, and quote the build and the weekly fee from that list. You approve it in writing before any payment.
MVP development scoped to agreed core journeys
We build the core journeys we agreed with you, as working software with limited scope and access. Real versus simulated behavior is labeled in the order, so you know exactly what is live and what is not.
Private access for your invited testers
The MVP lives in a private hosted environment sized to the agreed testers, with basic feedback collection built in. Tester caps, data limits and support are set in your order.
A foundation that is already solved
Authentication, roles and permissions, the shared data model, notifications, transactional email, a mobile-ready PWA shell, English and Spanish — patterns we have built and run in production. Your build starts above that line, with AI in the loop across the development work itself.
How it goesFrom a list of features to a private test group.
- 1
List the features
Before work startsWe list the features with you and rate each one simple or complex. A feature is one thing a person can do in your product from start to finish, like booking an appointment, including its screens, data and rules.
- 2
Agree it in writing
Before any paymentThe quote for the build and the weekly fee comes from that list, and you approve it in writing before any payment. Scope, limits and support are written down first.
- 3
Build the agreed core flows
During the buildWe build the working core journeys we agreed, plus private access for your invited group and basic feedback collection. Timing is agreed for your project, not promised as a fixed delivery date.
- 4
Test with your group
After the initial buildYour invited testers use the MVP in the private hosted environment, and the weekly fee starts after the initial build. When you are ready to build for real customers, production is scoped separately.
The differencePrototype vs. private MVP.
All prices are USD starting prices; each quote depends on the number of features and their complexity. Scope and revision changes are quoted separately. Full terms, including cancellation, ownership and hosting limits, are agreed in writing before work starts.
The proofAttain OS — the scale this approach reaches.
Attain OS is a multi-tenant platform we designed and built: 19 built-in apps across four connected domains, all on one shared database, with Atty — the AI agent — working across chat, voice, WhatsApp, and document analysis. It is a real-time PWA, fully bilingual down to the agent and the transactional email, live in production, in beta, on React, TypeScript, Firebase, and Cloud Functions. Every part of the foundation your build starts on already runs in Attain OS.
19built-in apps
4connected domains
4Atty channels
1shared database, no sync pipelines
2languages from the start
Questions we hear about private MVPs.
What does the MVP include, compared with the prototype and production?
The prototype is a hosted interface you can click through, built on simulated flows and sample data. The private MVP is where agreed core flows actually work, with private access for a small invited group, basic feedback collection and a hosted environment sized to the agreed testers. Production is the real business product for real customers, with scope, timeline, ownership and responsibilities written down first.
Can I charge users on the MVP?
No. The private MVP is for invited private validation — no public commercial launch or live sales. Charging real customers is part of a production product, scoped separately.
What does MVP development cost?
A private MVP starts at $1,999 for the build, then from $299/week for hosting after the initial build. Both are set by your feature set and grow with the number of features and their complexity. The quote is agreed before any payment. Production is a custom quote.
Can I show the private MVP to investors or partners?
Yes. Use the private MVP to explain your idea to potential customers, partners or investors. Arrange demo access under your project's sharing rules; funding and investment outcomes are not guaranteed.
Related services
App prototype development
A hosted, clickable prototype from $199 to show your idea.
Explore →Custom software development
Prototype, private MVP or production software with a written scope.
Explore →Hire an app developer
A written scope and a starting price for each stage.
Explore →What are you trying to build?
Describe the problem and who it is for. We will come back with the stage worth starting with and what it would include.