Uvilno vs Base44: compare typed app data, auth, built-in AI, workflows, GitHub source handoff and the difference between a $4.99 unlock and recurring app hosting.
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.
| Criterion & weight | UvilnoPublisher | Base44Documented comparison |
|---|---|---|
| Code ownership & export cost25 possible points | 5 of 5 conditions documented An owned, unlocked project can export its runtime-appropriate source and referenced media. Inspect conditions0 unmeasured
| 3 of 5 conditions documented Advertises ownership and two-way GitHub source export; plan conditions apply. Inspect conditions2 unmeasured
|
| Database, accounts & app AI25 possible points | 5 of 5 conditions documented Uvilno.db CRUD and App Data use schema-declared, persistent app records. Inspect conditions0 unmeasured
| 5 of 5 conditions documented Built-in entities, records and a data dashboard; test and production data controls. Inspect conditions0 unmeasured
|
| Targeted edit precision & speed20 possible points | 2 of 4 conditions documented @file, @page, @db and bounded repository retrieval supply explicit context. Inspect conditions2 unmeasured
| 0 of 4 conditions documented Comparable evidence for these conditions is not recorded here. Inspect conditions4 unmeasured
|
| No-usage editing & recovery15 possible points | 3 of 3 conditions documented Mapped direct text, link and color changes use 0% model usage; unsupported computed elements use the normal scoped-edit path. Inspect conditions0 unmeasured
| 0 of 3 conditions documented Comparable evidence for these conditions is not recorded here. Inspect conditions3 unmeasured
|
| 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
| 1 of 3 conditions documented Integrated AI app building, hosted backend and data management. Inspect conditions2 unmeasured
|
| Comparable overall score | Not measured | Not measured |
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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.
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.
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.
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.
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.
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.
Key takeaway, October 2026. Uvilno combines typed hosted data, app AI and bounded transactional automations with a permanent $4.99 source unlock. Choose it when that frontend-and-managed-services contract fits your app; compare Base44's runtime, service limits and handoff against the same requirements.
Where Base44 fits. Choose Base44 when an integrated app platform with its own data dashboard, hosted backend, access controls and scheduled or event-driven workflows suits your operating model.
Where Uvilno fits. Choose Uvilno for a chat-and-preview workflow with declared collections, real app AI, transactional data rules, explicit context mentions and a permanent $4.99 source entitlement per project.
Both offer source handoff and managed backend services. Exporting files does not itself migrate records, identities, credentials or the hosted services those files call. Compare the actual exit plan, not a claim of universal zero lock-in.
Feature summaries reflect the linked documentation. “Requires configuration” is a responsibility to plan for, not a claim that the other product cannot do it.
| What to compare | Uvilno | Base44 |
|---|---|---|
| Primary job | Conversation-led websites and data-backed frontend apps, isolated preview and source handoff. | Integrated AI app building, hosted backend and data management. [1] |
| Paid entry plan | Plus $10/month; individual source unlock $4.99 once per project. | Starter $192/year; GitHub-listed Builder $480/year, annual billing. [1] |
| Free starting point | $0 plan with limited included AI usage; source stays locked until entitled. | Free includes 25 monthly message credits and 100 integration credits. [1] |
| Source access | Inspection and raw source require a permanent project unlock. | In-app code editing; repository workflows through Base Code. [2] |
| Code export | Unlocked ZIP includes source, project images, bundled fonts and licenses. | Advertises ownership and two-way GitHub source export; plan conditions apply. [1] |
| Technical foundation | HTML/CSS/JavaScript; eligible projects use a Next.js static-export workflow. | App source plus managed Base44 backend services and developer tooling. [2] |
| Design workflow | Describe the audience and brand; add images and visual references. | AI chat, visual editor, design controls and project references. [1] |
| Refinement | Chat edits, saved versions and mapped Inspect & Edit controls. | AI edits and repository-based changes with a development preview. [2] |
| Preview and review | Interactive preview runs on a separate origin; review desktop and phone layouts. | Preview changes and review branch-based repository work. [2] |
| Hosting | Publish Studio serves an explicitly published version; exported source can also run on another host. Service limits apply. | Apps use Base44 hosting and backend infrastructure. [1] |
| Custom domains | Verified custom domains are available for entitled projects through Publish Studio; external hosting has its own DNS workflow. | Paid plans list domain connection; check exact plan and DNS setup. [1] |
| Database and backend | Typed Uvilno.db collections, persistent CRUD and App Data; hosted services remain a dependency after export. | Built-in entities, records and a data dashboard; test and production data controls. [3] |
| Visitor authentication | Project-scoped managed visitor identities when enabled; not a portable identity database by ZIP alone. | App sign-in and role/access settings; data permissions require review. [4] |
| Payments | Stripe test Checkout connector; live use depends on configuration and release availability. | Payments and Stripe setup are documented integrations, not a source-export entitlement. [6] |
| Existing code and Git | GitHub import, push and pull for supported frontends; source pushes require unlock. | GitHub integration on Builder and above; Base Code edits connected repositories. [2] |
| SEO workflow | Generated page metadata and structure need review; rankings and traffic are not guaranteed. | Review generated pages and published metadata; ranking is not guaranteed. [1] |
| Usage limits | Finite AI usage on every plan. Unlimited source unlocks are not unlimited generation. | Separate message and integration credit allowances with plan-dependent limits. [1] |
| Moving away | Static source can move to your host; managed auth, data, forms and payments may need migration. | Source ownership is documented; migrate backend data and connected services separately. [2] |
| Declarative data and studio | data/schema.json declares typed collections; App Data manages actual owned and shared records. | Typed entities and visual record management are part of the built-in backend. [3] |
| In-app AI | Uvilno.ai.ask/json runs real owner-funded inference; 600-token replies and admission limits apply. | invokeLLM and app agents use supported managed model presets. [7] |
| Database automations | Bounded create/update/remove rules and notifications commit atomically; inspect Automations & Logs. | Scheduled, data-event and connector triggers; workflows are replacing automations. [5] |
| Role views and authorization | Guest/Member/Admin previews change presentation only; real visitor permissions remain server-enforced. | App access and role settings; data permissions remain a separate security configuration. [4] |
| Focused edit context | @file, @page, @db and inspected-element references guide bounded source retrieval with a repo map. | Base Code edits connected repositories with branch previews and commit history. [2] |
| Repair and interaction cost | Mapped visual edits cost 0% usage. Limited reproduced static-runtime repairs are platform-funded; ordinary AI edits are metered. | Building and live integration work use distinct message/integration credit allowances. [1] |
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Uvilno source: plans and source entitlement, with implementation boundaries described on this page. Always review the actual exported project and configured services.
Uvilno's October 27 integration run exercised real hosted services with a code-authored fixture. It was not an independently scored CRM-generation contest or a test of Base44. We publish the boundary so a passing SDK check cannot be mistaken for a universal build-completion rate.
| Check | Uvilno: observed result | Base44 |
|---|---|---|
| Saved data | A task was persisted through the actual SDK and recovered after an iframe reload. | Not measured in this run. Official capability documentation is linked separately. |
| Database effects | Task creation wrote an activity record and notification in the same transaction. | Not measured in this run. Official capability documentation is linked separately. |
| Account boundaries | Guest/Member/Admin view changes preserved the real visitor and creator identities. | Not measured in this run. Official capability documentation is linked separately. |
| Targeted recovery | A reproduced static ReferenceError was repaired in app.js and browser-checked without a customer usage-ledger entry. | Not measured in this run. Official capability documentation is linked separately. |
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Real free-model text and JSON app inference also passed locally; the production replay verified persistence, automations and isolation without additional inference. No cross-vendor latency, aesthetic score, completion percentage or total operating cost was measured. Read the machine-readable evidence and methodology.
Base44 includes hosted entities and data management. Uvilno declares typed collections in data/schema.json and exposes actual records through App Data. For either product, test create, update and delete, reload the page, then repeat with another visitor account. A table that looks populated is not evidence that ownership rules or persistence are correct. Uvilno's preview personas change presentation, not real account permissions.
Base44 documents scheduled, data-event and connector-triggered automation, with workflows replacing its automation interface. Uvilno's current rules are narrower: bounded record changes and in-app notifications execute atomically with the triggering collection mutation. Uvilno rules do not run uploaded server JavaScript, send email or make arbitrary network calls. Choose the execution model your workflow actually needs.
Base44 explicitly advertises code ownership and GitHub source export; presenting it as unable to export would be inaccurate. Uvilno offers a $4.99 permanent source entitlement per project, with included unlocks on subscriptions. That is a source-access purchase, not an annual hosting or database bill. In both cases, verify the exported frontend, its licenses, authentication configuration, data export and any provider dependencies before migrating.
Published plan prices are a starting point. Add the costs your actual website needs; this is a budget worksheet, not a price quote or a measured savings claim.
Zero in an optional field means that cost is excluded from this worksheet. It does not mean unlimited or free generation, provider usage, hosting or domains. Taxes, currency conversion and labor are excluded.
Source unlocks persist. This worksheet models new projects at an even monthly pace; Plus's two included unlocks must be used in their paid month. Existing unlocked sites do not require another unlock.
Configured monthly AI capacity: Pro is 2.5× Plus; Ultra is 5× Pro. These are usage-capacity ratios, not a guaranteed number of builds.
Starter is displayed at $16/month billed annually ($192 upfront). Builder, which lists GitHub integration, is $40/month billed annually ($480 upfront). The captured offer uses annual billing. Monthly checkout, credit consumption, integration quotas and any third-party charges must be checked separately; Starter is not the GitHub-export comparison plan. Pricing checked 2026-10-27. See the official pricing source.
No. Base44 advertises source ownership and two-way GitHub export, with GitHub integration listed on Builder and higher plans. Check the current plan and how its managed backend is configured before choosing a migration path.
No. It permanently unlocks one project's source. Generation remains metered, app AI uses the creator's allowance, and exported managed services still need a running service or replacement. Add hosting and operational costs separately.
No. Guest, Member and Admin preview views are presentation tests. The actual isolated visitor identity and server-side record authorization remain unchanged.
The Starter annual offer is $192 upfront. Builder is separately displayed at $480 annually and lists GitHub integration. The calculator models the named plan, not the cheapest route to every feature, and excludes hosting overages and third-party services unless you enter them.
Publish Studio can serve an explicitly published version, and entitled projects can connect a verified custom domain. Every plan still has finite AI usage and service limits. A permanent source unlock grants source access, not unlimited hosting or generation. External hosting and managed-service migration need separate planning; payments currently use test workflows.
A product comparison can narrow the options. Your own content, constraints and review decide the fit.
The brief is preloaded for you to review. AI generation starts only when you send it. Included usage is limited; source access requires unlock.
Official vendor documentation checked on 2026-10-27. Billing conflicts and unavailable prices are disclosed above. Uvilno prices follow our current plan configuration; our implementation is the source for its documented boundaries.
Follow the data model, account boundary and source handoff before choosing a builder.