Uvilno belongs on this shortlist when a creator wants a chat-and-preview workflow, typed managed app data and a permanent source unlock for one project. It is particularly relevant to a frontend app whose scope fits the documented SDK. Its $4.99 source entitlement does not include unlimited generation or migration of every hosted dependency.
Uvilno provides conversation-led frontend generation, schema-declared app data and a $4.99 permanent source unlock for one project. Plus costs $10/month; Pro costs $20/month with unlimited source unlocks during the subscription. Generation and hosted services have separate limits.
The five criteria below allocate 100 possible points. Available documentation and recorded Uvilno checks establish some conditions; they do not establish equivalent performance across products. Overall scores remain unmeasured. Unknown evidence is not treated as a failed capability.
Published by Uvilno. Uvilno appears first as the publisher’s presentation order, not a measured rank. The weights express this publication’s engineering priorities.
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Evidence conditions under a proposed 100-point protocol. Open each cell to inspect the individual conditions and sources.
The source-access purchase and its limits are identifiedUnmeasured
The displayed Standard offer is $20/month equivalent under Annual billing ($240/year). A month-to-month checkout price is not verified here. An equivalent complete source-access purchase has not been priced by a matched export test.
A permanent one-project source purchase is documentedUnmeasured
This specific source-access condition has not been established here; it is not marked unsupported.
Hosted-service and data-migration boundaries are describedDocumented
Exported code excludes secrets and application data; migrate those separately.
The source-access purchase and its limits are identifiedUnmeasured
Pro 100: $25 billed monthly, or $250 paid for a year. Annual payment is upfront. An equivalent complete source-access purchase has not been priced by a matched export test.
A permanent one-project source purchase is documentedUnmeasured
This specific source-access condition has not been established here; it is not marked unsupported.
Hosted-service and data-migration boundaries are describedDocumented
Code and data can move; replace or reconfigure backend, AI and connector calls.
Data-event automations are documentedRecorded Uvilno check
Bounded record effects and notifications execute in the triggering record transaction; arbitrary server code, email and network actions are outside this rules engine.
A bounded runtime repair has been checked without customer usageRecorded Uvilno check
A reproduced native-static runtime fault was repaired and rechecked without customer usage. This bounded path is rate-limited and does not cover every engine error.
Comparable evidence for these conditions is not recorded here.
Inspect conditions3 unmeasured
Some direct visual edits have a documented no-usage pathUnmeasured
No-usage visual-edit terms have not been established here; absence of a recorded check is not a paid-only claim.
A bounded runtime repair has been checked without customer usageUnmeasured
The same injected fault and actual customer usage ledger have not been inspected on this product.
A previous saved state can be restored without model generationUnmeasured
A matched restore and usage-ledger check has not been run here; existing source-control features are described in the product comparison.
1 of 3 conditions documented
The preview toolbar includes 100 free inline text edits per account, replenished after 24 hours, with a shared 2,000-edit workspace limit per 24 hours. Further edits use standard credits.
Inspect conditions2 unmeasured
Some direct visual edits have a documented no-usage pathDocumented
The preview toolbar includes 100 free inline text edits per account, replenished after 24 hours, with a shared 2,000-edit workspace limit per 24 hours. Further edits use standard credits.
A bounded runtime repair has been checked without customer usageUnmeasured
The same injected fault and actual customer usage ledger have not been inspected on this product.
A previous saved state can be restored without model generationUnmeasured
A matched restore and usage-ledger check has not been run here; existing source-control features are described in the product comparison.
Multi-page & interactive applications15 possible points
2 of 3 conditions documented
Contract-first route plans and reusable modules support multi-page frontends; saved legacy and eligible Next.js projects retain their respective runtimes.
Inspect conditions1 unmeasured
Multiple application or site pages are documentedDocumented
Contract-first route plans and reusable modules support multi-page frontends; saved legacy and eligible Next.js projects retain their respective runtimes.
An interactive Canvas or game workload has recorded evidenceUnmeasured
An equivalent interactive workload has not been run in this evaluation; this does not imply an inability to build games.
Frame time has been measured on matched hardware and workloadUnmeasured
No matched workload/device frame-time measurement is recorded here.
Comparable overall score
Not measured
Not measured
Not measured
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Read the proposed scoring and test protocol
Each listed condition has a five-point allocation. This page records evidence, not awarded performance points. “Documented” identifies a stated capability with its requirements. “Recorded Uvilno check” identifies a named first-party fixture; it is not independent comparative testing. “Unmeasured” leaves the condition open. Source-access purchases, annual subscriptions and operating services are different costs.
Code ownership & export cost
Build the same app, obtain its complete source, record the actual purchase, and rebuild on a separate host. Test continued source access and document the backend services that still need migration.
Database, accounts & app AI
Create, edit and remove the same records; reload; repeat with another account; check record permissions; run a real app-AI request and inspect a triggered automation. Record each managed or external dependency.
Targeted edit precision & speed
Apply the same specified changes to matched projects. Compare exact file deltas, verify the rendered target and unchanged routes, and record end-to-end timings including verification. Publish failures as well as successes.
No-usage editing & recovery
Make the same direct edit and introduce the same reproducible fault. Inspect actual usage ledgers, repair limits and saved-version behavior. A limited free path must not be described as unlimited free coding.
Multi-page & interactive applications
Build and navigate the same route plan, exercise state across pages, then measure frame time and input response on named devices. Framework support or an attractive screenshot does not establish a universal 60 FPS result.
A published 4–8 second edit claim needs timing data. A 60 FPS claim needs a named workload, device and frame-time record. Neither is inferred from feature availability, code export or a screenshot. The recorded checks and open evaluation protocol describe the current measurement boundary.
Emergent vs Lovable: the actual decision.
Emergent and Lovable both address conversation-driven application building. Emergent's published offer includes web and mobile building and GitHub integration on Standard. Lovable documents a managed backend with database, authentication, storage and functions. The decision should follow the required runtime, collaboration workflow, usage policy and a tested service handoff; neither the presence of a backend nor one successful preview proves that an application meets its requirements.
For a client portal, specify who can read each record, where a server-only operation runs, and how uploads are authorized. Lovable's built-in backend means separate Supabase setup is not universally required. Ask each platform to implement the same permission boundary, then exercise it with two visitor accounts rather than judging the opening screen.
Emergent's rendered pricing page marks its Standard $20 monthly equivalent as annual billing. Lovable publishes a Pro 100 option at $25 monthly or $250 annually. Lovable's current documentation describes one credit balance covering building and running the app. Record the billing period, included allowance, extra usage and running costs before comparing a twelve-month budget.
Create a small project with a protected route, one saved record and an uploaded file. Export or synchronize the code, then account separately for data, identity configuration, environment variables and deployment. Lovable explicitly distinguishes the database from source code; a repository alone should not be counted as a completed service migration on any of these platforms.
The columns have equal width. Use the slider or arrow controls on narrower screens. Uvilno appears first because it publishes this page; position does not imply an independent ranking.
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Uvilno, Emergent and Lovable: documented capabilities and plan boundaries.
Capability
Uvilno
Emergent
Lovable
Primary job
Conversation-led websites and data-backed frontend apps, isolated preview and source handoff.
Agent-led full-stack web and mobile app building. Source
AI builder for websites and full-stack web apps. Source
Paid entry plan
Plus $10/month; individual source unlock $4.99 once per project.
Standard displays $20/month equivalent billed annually; monthly checkout is unverified here. Source
Pro 100: $25 monthly or $250 annually upfront. Source
Code export
Unlocked ZIP includes source, project images, bundled fonts and licenses.
Save source through GitHub; copy individual files in Code view. Source
Export source and move hosting; services require separate migration. Source
Hosting
Publish Studio serves an explicitly published version; exported source can also run on another host. Service limits apply.
Managed deployment uses a separate credit allowance. Source
Managed Lovable hosting or your own infrastructure. Source
Custom domains
Verified custom domains are available for entitled projects through Publish Studio; external hosting has its own DNS workflow.
Custom-domain deployment is documented; check deployment charges. Source
Custom-domain workflow is documented; plan and DNS requirements apply. Source
Database and backend
Typed Uvilno.db collections, persistent CRUD and App Data; hosted services remain a dependency after export.
Backend and database workflows are part of the app platform. Source
Built-in Cloud backend with database, storage and compute billing. Source
Visitor authentication
Project-scoped managed visitor identities when enabled; not a portable identity database by ZIP alone.
Generated app login requires configuration and testing. Source
App authentication is part of the backend configuration. Source
In-app AI
Uvilno.ai.ask/json runs real owner-funded inference; 600-token replies and admission limits apply.
One-click LLM integration is listed; app configuration and usage still apply. Source
Managed app AI connector provides real model calls and workspace usage billing. Source
Custom backend logic can be generated; an equivalent atomic rule contract was not measured here. Source
Backend functions and scheduled jobs are documented; execution differs from Uvilno's bounded atomic rules. Source
Focused edit context
@file, @page, @db and inspected-element references guide bounded source retrieval with a repo map.
Agent chat and Code view provide project editing; no edit-time benchmark was run. Source
Chat, generated modules and repository sync; no same-brief timing benchmark was run. Source
Repair and interaction cost
Mapped visual edits cost 0% usage. Limited reproduced static-runtime repairs are platform-funded; ordinary AI edits are metered.
Testing, debugging and troubleshooting consume credits in the published credit model. Source
Build/chat and app runtime use the documented credit balance; check action-specific charges. Source
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Read the linked vendor sources for quotas and eligibility. Uvilno’s column follows its plan configuration and public SDK documentation. A subscription, a source license and a hosted application budget are different commitments.
Test your actual application.
Give each shortlisted platform the same brief, content and acceptance criteria. Keep the first working result, recorded usage and remaining manual work together.
Build the same protected customer route and attempt to read another visitor's record.
Record the actual allowance used for the first build and one narrowly scoped correction.
Inspect the repository for routes, shared components and service configuration.
Run the exported frontend and document every service that still needs a hosted account.
Questions before you choose.
Does Lovable always require a separate Supabase project?
No. Lovable documents a built-in backend with database, authentication, storage and functions. Connecting an external Supabase project is a different configuration choice.
Is Emergent's displayed $20 Standard offer a verified month-to-month quote?
The pricing page reviewed for this article labels that displayed offer as Annual. Check the selected billing interval at checkout; this comparison does not silently treat an annual monthly equivalent as month-to-month billing.
Which one generated the better app in a controlled test?
No controlled common-brief generation test between Emergent and Lovable was run for this article. It compares documented workflows and supplies a repeatable acceptance checklist instead of an invented quality score.
Sources and method.
Uvilno publishes this comparison and is displayed first as an editorial presentation choice, not an independent ranking. Vendor statements come from the linked official documentation reviewed on October 28, 2026. No common-brief generation contest, aesthetic score, universal frame rate or edit-latency benchmark was performed for this page. A source handoff and migration of hosted data, accounts and services are separate tasks.