Choose an application workflow you can inspect.

Choosing an app builder means choosing how to design records, review changes, pay for iteration and maintain the result. Uvilno offers isolated app accounts, typed managed collections, transactional automations and bounded in-app AI alongside a $4.99 permanent source unlock per project. Compare the actual workflow against Base44 or Emergent using the same brief and acceptance checks. Source access is useful, but an exported interface still depends on any hosted services it calls; plan that dependency explicitly before moving.

Explore three briefs

Free to start. Source stays private until unlock. See pricing.

A Base44 and Emergent Alternative with Source Export

Updated

A good fit when the scope is clear.

Teams comparing builders for a defined project or planning a careful, permission-respecting migration from an existing app.

Use the route plan to decide what belongs in your first build. Bring your own facts, review the saved result, and expand only when the core journey works.

What should actually work.

  • Use file mentions such as @js/app.js, @db:tasks and inspected-element references to request a focused change while retaining unrelated pages.

  • Compare record persistence, navigation and failure recovery with a written acceptance checklist.

  • Export an unlocked source package or use supported GitHub handoff, then test the hosted service configuration separately.

Know the service boundaries.

  • Uvilno has not run a controlled completion-rate or latency benchmark against every competitor; compare published features and your actual trials.
  • A source export does not migrate customer records, provider credentials, visitor passwords or hosted backend infrastructure automatically.
  • The $4.99 unlock covers source access for one project, not unlimited generation, free external hosting or live Stripe activation.

Three places to begin.
Make one yours.

Choose a direction, change the details, and carry the brief into Uvilno. Sign in, name your project, then review the brief in chat before you explicitly send the first build.

Replace the details with your own. Opening a brief does not start a build or use generation capacity.

From a brief to a result you can review.

Uvilno supports static websites and eligible multi-file Next.js projects. The output, connector setup, and execution limits depend on your project’s actual engine and scope.

  1. Plan the journey

    Name the routes, inputs, and expected behavior. Plan mode lets you review and explicitly approve a direction before building.

  2. Build and refine

    Review the isolated live preview, check desktop and phone layouts, and ask for focused changes. Recoverable builds can retain saved draft progress within their retention limits.

  3. Keep the work

    Use Inspect & Edit for supported mapped text, link, and color changes. Unlock source when ready to inspect, export, or use source GitHub sync.

Questions worth settling first.

Is Uvilno a like-for-like replacement for every Base44 or Emergent app?

No builder is a universal replacement. Compare the particular authorization rules, integrations, data model, hosting and operational needs. Start with one complete workflow and inspect what remains to configure.

Is the $4.99 unlock a monthly charge?

It is a one-time permanent source unlock for one project. Plus, Pro and Ultra are separate monthly plans with finite AI usage and their stated source entitlements.

Can I keep my existing customer accounts?

Identity and data migration require an explicit implementation and permission to transfer the data. An exported frontend or imported repository alone does not migrate passwords or accounts.

What does Uvilno cost, and when can I access source?

Free is $0. A permanent project source unlock is $4.99 once. Plus is $10/month with 2 new project unlocks per paid month; Pro is $20/month and Ultra is $59/month, with unlimited new source unlocks during the paid period. Generation remains usage-limited; the meter shows remaining capacity from 100% to 0%. Already unlocked projects remain downloadable after cancellation.

Take the next decision with you.

Useful guides

Compare the workflow

Related builds

Begin with something
specific.

Check the architecture. Compare the tradeoffs.

Follow the data model, account boundary and source handoff before choosing a builder.

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Plan a full-stack app

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