OnSpace AI Review: Build Web and Mobile Apps From Prompts

OnSpace AI added Sign in with Apple to OnSpace Cloud on July 21, 2026. Builders can now enable Apple ID authentication in apps and websites created with the platform, extending a product that already combines prompt-based development, mobile creator apps, managed backend services, code access, payments, and mobile build workflows.

The update is small in changelog length but significant in product direction. Authentication is one of the first places where a generated prototype becomes a real service. Users need to create accounts, return across devices, recover access, protect private records, and understand how their identity data is handled. For an app builder that positions iOS and Android output as a central difference from web-focused rivals, Sign in with Apple fills an important part of the path from demonstration to distribution.

It also creates responsibilities that cannot be solved by adding a button. A production implementation must handle Apple identifiers, callback URLs, private relay email addresses, account linking, returning users, revoked credentials, session expiry, account deletion, privacy disclosures, and application-store rules. OnSpace can generate or configure much of the workflow, but the app owner remains accountable for the result.

### Sign in with Apple builds on a wider authentication push

The latest release follows an April 23 update that added custom authentication email templates and SMTP settings to OnSpace Cloud. Builders can manage messages for sign-up confirmation, magic-link login, password reset, and email changes, then connect their own email service for production delivery.

Together, these releases make identity feel less like a single generated screen and more like an operating system for user access. A credible app needs the initial sign-in route, transactional email delivery, recovery, verification, session management, role restrictions, and a way to remove an account. Each path needs its own test.

Sign in with Apple has specific edge cases. A user can choose to hide their email, producing an Apple relay address that the application must accept. A returning user can appear different if environments, service identifiers, or account-linking logic are configured incorrectly. A failed callback can strand the user between Apple and the app. If the application also offers email, Google, or another identity provider, the owner must decide whether matching addresses represent one account or two.

WhatAI recommends testing at least five cases: a brand-new Apple user who shares an email, a user who hides it, a returning user, a user who revokes Apple access, and a person who wants to delete the account and associated data. Repeat the tests on a real iPhone and the deployed web origin, not only inside a preview.

### OnSpace is now more than a prompt-to-screen generator

The current product can generate web, iOS, and Android projects from natural-language instructions. Users can also import a Figma file, open generated code in a Code Editor, preview changes, and continue building from OnSpace's iOS and Android creator apps. The public site lists Agent Mode, code editing, managed backend infrastructure, payments, analytics, and shipping tools as parts of the same workflow.

That breadth changes how OnSpace should be evaluated. The useful question is not whether a prompt can produce an attractive first screen. Many AI builders can do that. The question is whether one project can survive the full sequence from requirement to interface, data, permissions, authentication, payment, version control, device testing, distribution, and maintenance.

The most reliable way to test this is to build one vertical flow. Choose a narrow task such as sign up, create a record, view only that user's record, edit it, and sign out. Add explicit acceptance criteria and prohibited behaviour. Test with two normal accounts and one administrator. If one user can see another user's record, the project is not ready regardless of how polished the interface looks.

### Code ownership is a major correction to the old record

Earlier descriptions of OnSpace sometimes warned that users could not export source code. That is no longer accurate. The current pricing FAQ says users maintain ownership, can connect a project to GitHub, export the code, and host it elsewhere. The main website also says generated code can be downloaded directly from the project interface.

OnSpace's GitHub documentation describes private repositories by default, automatic commits, version history, developer collaboration, and bidirectional sync. Changes created in OnSpace are pushed to the repository, while changes pushed to the GitHub default branch can appear back in the OnSpace editor. The guide also describes external deployment to services such as Vercel, Netlify, and AWS.

This materially reduces platform-lock-in risk, but it does not eliminate maintenance risk. A code export is useful only if the project can build outside the original service, dependencies and licences are understood, environment variables are documented, database ownership is clear, and someone can operate the system. Connect GitHub at the start of a serious project, not after the AI has already made dozens of untracked changes.

There is also a branch limitation. The official guide says OnSpace focuses on the repository's default branch. Work performed on feature branches outside OnSpace remains invisible until it is merged. Teams should therefore protect the default branch, review pull requests, and define who is allowed to merge changes that will sync back into the builder.

### Builders can choose OnSpace Cloud or Supabase

OnSpace presents Cloud as its built-in serverless backend for React Native applications. Current documentation labels it as alpha and lists authentication, PostgreSQL, row-level security, real-time data, file storage, Edge Functions, a visual dashboard, user administration, secrets, and logs. The platform can also connect a project to Supabase for PostgreSQL, authentication, storage, real-time features, and serverless functions.

The convenience is obvious. A non-technical founder can ask for users, tables, uploads, and business logic without manually wiring every service. The risk is that database and permission decisions become invisible behind successful generation.

A production review should answer basic questions. Which region stores the data? Who owns the backend account? Can the data be exported? Are backups available and tested? Which roles can read each table? Are row-level policies active? Where are privileged keys stored? How are logs retained? What happens if the backend or builder account is suspended?

OnSpace Cloud may be the quickest route for a controlled prototype. Supabase may be preferable when a team wants a separately managed account, direct database administration, or an existing Supabase workflow. Neither choice removes the need to test access as several different users and to plan recovery before launch.

### Payments cover web and iOS, with different rules

OnSpace documents a Stripe integration that can generate payment screens, SDK connections, backend processing, and success or failure handling from a description of the required flow. It supports one-time payments and subscriptions, with official guidance telling builders to start in Stripe test mode.

RevenueCat provides a separate route for eligible iOS subscriptions and in-app purchases. The setup requires an Apple Developer account, App Store Connect access, keys, products, bundle identifiers, and a published or testable application environment. Native purchase behaviour does not run normally in a web preview, so the workflow must be tested with Apple's sandbox and TestFlight on a device.

Payments are a good example of why prompt speed must not replace systems thinking. A correct production flow needs idempotent webhook processing, protected secrets, cancellation, renewal, failure, refund, restore-purchase, expired-entitlement, and duplicate-event handling. The app should never grant access solely because a client screen says payment succeeded. Verify the server-side or store-side state.

### Mobile distribution is useful but the routes differ

OnSpace documents direct App Store submission for iOS. The workflow prepares the build, collects the required app details, authenticates with the user's Apple Developer account, and submits to App Store Connect. The official guide currently lists a cost of 1,000 credits per submission. An Apple Developer Program membership is still required, and Apple controls the review outcome and timeline.

For Android, OnSpace supports APK builds for testing or direct distribution and AAB packages for Google Play Console. The APK guide says the feature requires Pro and currently costs 500 credits per build. It also warns that creating a new APK overwrites the earlier one, so users should download and archive each version.

The important qualification is that OnSpace's current publishing documentation says direct Google Play Store publishing is not supported. Builders can create the package, but they must finish the distribution process through Google Play or another documented route. This is more precise than marketing language that can make cross-platform shipping sound identical.

Before spending credits on a release build, test the project on representative Android and Apple devices. Check permissions, keyboard behaviour, notches and safe areas, slow networks, offline transitions, deep links, push notifications, background behaviour, accessibility, image uploads, payment sandboxes, and account deletion. A successful compilation is not a successful product test.

### The 2026 pricing model mixes subscriptions and credits

As verified on August 16, 2026, OnSpace lists Free at $0, Pro at $25 per month, and Enterprise with custom pricing. Free includes public projects, the iOS, Android, and web builder, Agent Mode on a usage basis, and the Code Editor. The plan provides 500 daily credits but caps free usage at 2,000 credits per month. Once the monthly maximum is consumed, the user waits for the next cycle.

Pro includes up to 7,500 credits per month, advanced AI coding models, private projects, badge removal, custom domains, and fast-track generation. Enterprise adds default exclusion from training data, priority queue access, SSO, and a dedicated service team.

Agent Mode cost varies with request complexity, so the subscription price is not a complete estimate. Mobile builds can consume credits, and external accounts can add their own charges. A real budget may include Apple and Google developer memberships, Supabase or hosting, domains, email, Stripe or RevenueCat fees, monitoring, storage, and developer review.

Track the cost of reaching a tested feature, not the cost of producing the first draft. A $25 plan is inexpensive if it replaces days of reliable work. It is less attractive if vague prompts consume the allowance and every repair creates a new regression.

### WhatAI verdict

Sign in with Apple is a useful step in OnSpace's move from rapid prototype generator toward a fuller mobile application workflow. It complements authentication email controls, mobile creator apps, backends, payments, GitHub ownership, direct iOS submission, and Android build tools. The combination is appealing for founders and designers who need a real mobile route, not only a responsive website.

OnSpace is best used with disciplined boundaries. Start with a narrow product, connect GitHub immediately, build one vertical flow, test data permissions with several accounts, use payment sandboxes, and have a qualified developer review the generated system before production. Treat OnSpace Cloud's alpha label and every store requirement as real constraints.

The product is less suitable for projects that require deep native SDK work, complex enterprise architecture, extensive offline behaviour, hard real-time guarantees, or a fixed cost during heavy iteration. In those cases, a conventional engineering workflow or a more developer-centred AI environment may offer better control.

For a practical trial, build the same small application in OnSpace and one alternative such as Bolt.new, Lovable, Bubble, or Replit. Measure time to a working vertical flow, permission errors, code portability, device behaviour, build cost, and the amount of human technical review required. The best result is not the fastest demo. It is the smallest system that a team can understand, test, recover, and keep improving after users arrive.

WhatAI Decision Box

OnSpace AI is a no-code and AI-assisted app builder for web, iOS, and Android projects. It combines chat generation, a code editor, mobile creator apps, managed or connected backends, payment integrations, code export, and mobile build workflows.

Users can begin with a written specification or Figma design, iterate through Agent Mode, connect OnSpace Cloud or Supabase, add Stripe or RevenueCat, sync the project to GitHub, and publish or export the result. Direct iOS submission and Android APK or AAB builds reduce deployment work, but store approval and production quality remain the owner's responsibility.

OnSpace is best for founders, designers, freelancers, and small teams building a straightforward mobile-first MVP. It is less suitable when a project requires deep native SDK control, complex enterprise architecture, strict offline development, guaranteed generated-code quality, or a predictable fixed cost for heavy agent use.

Use Cases

Pricing varies by plan and region — see current pricing.

Plan features change — last updated: 2026-08-16.

OnSpace AI Pros & Cons

How to Get Results with OnSpace AI: Step-by-Step Workflow

1. Define a narrow first release

   Write the target user, the single problem, three essential flows, the data required, the excluded features, and the measure that would justify further investment.

2. Choose the delivery targets

   Decide whether version one must support web, iOS, Android, or all three. List required device capabilities and confirm which distribution accounts and review processes apply.

3. Describe the system before styling

   Prompt OnSpace with user roles, screens, navigation, data entities, permissions, actions, validation, empty states, error states, and acceptance criteria before requesting visual polish.

4. Connect GitHub immediately

   Create a private repository, limit app permissions to the required repositories, verify the first commit, and establish a rollback point before major AI-generated changes.

5. Select the backend deliberately

   Compare OnSpace Cloud and Supabase for data ownership, regions, authentication, row-level security, functions, logs, backups, export, cost, and the team's ability to operate the system.

6. Build one vertical flow

   Complete one end-to-end path such as sign up, create record, view record, and sign out. Test it before adding secondary screens, payments, notifications, or AI features.

7. Secure authentication and data

   Test login, Sign in with Apple if used, password reset, email delivery, account deletion, session expiry, role restrictions, row-level rules, storage access, and secret handling with separate test users.

8. Add payments in test mode

   Use Stripe test mode or RevenueCat sandbox, verify success, failure, cancellation, refund, entitlement, duplicate event, and expired subscription paths, and keep private keys out of client code.

9. Test on real devices

   Check supported iPhones, iPads, Android devices, browsers, screen sizes, slow networks, offline transitions, permissions, accessibility, performance, crashes, and background or notification behaviour.

10. Review code and dependencies

    Have a qualified developer inspect authentication, database rules, secrets, API calls, libraries, licences, error handling, logging, tests, build configuration, and maintainability in GitHub.

11. Publish through the correct path

    Use direct App Store submission for eligible iOS builds, export APK or AAB for Android, or publish the web app with the approved domain. Complete store metadata, policies, screenshots, and review requirements separately.

12. Operate after launch

    Monitor errors, logs, analytics, payment events, support requests, credit spend, external service bills, security alerts, dependency updates, backups, and user feedback. Keep every production change recoverable through GitHub.

OnSpace AI Gotchas and Limits to Know Before You Start

• Agent Mode is usage-based, so a complex request can cost more credits than a simple edit.
• The Free plan stops providing credits after the 2,000-credit monthly maximum is consumed.
• Pro includes up to 7,500 monthly credits, but build, agent, and other usage can still require careful budgeting.
• Official mobile publishing guides list separate credit charges for iOS submission and Android APK builds.
• Apple and Google developer accounts, domains, hosting, payment services, databases, and other providers can add costs.
• OnSpace Cloud is labelled alpha in current documentation and should be evaluated accordingly.
• Direct Google Play publishing is not supported in the current publishing guide, despite broader cross-platform marketing language.
• A generated preview does not prove that authentication, permissions, payments, backups, or error paths are safe.
• AI edits can introduce regressions, delete working logic, or consume credits while repairing earlier changes.
• GitHub sync focuses on the default branch; feature-branch changes are not visible in OnSpace until merged.
• Figma import requires a viewable link and should be treated as a starting point rather than a guaranteed pixel-perfect implementation.
• App Store and Google Play approval remain controlled by Apple and Google, not OnSpace.
• Native capabilities and in-app purchases need real-device or sandbox testing because browser previews cannot reproduce every behaviour.
• Generated libraries, licences, secrets, and data flows require technical and legal review.
• Enterprise pricing and exact service commitments require a written quote and contract.

Which OnSpace AI Feature Fits Your Use Case

Starter Prompts for OnSpace AI

What is OnSpace AI?

OnSpace AI is an AI-assisted app builder for web, iOS, and Android projects. Users can create through chat or Figma import, edit generated code, connect backends and payments, sync to GitHub, and publish or export the result.

Does OnSpace AI have a free plan?

Yes. The current Free plan includes public projects, the web and mobile app builder, Agent Mode with usage-based pricing, and the Code Editor. It lists 500 daily credits with a 2,000-credit monthly maximum.

How much does OnSpace AI cost?

As verified on August 16, 2026, Free is $0, Pro is $25 per month with up to 7,500 credits, and Enterprise is custom. Agent Mode and publishing actions can consume additional credits, while external services and store accounts may cost extra.

What happens when the Free credit limit is reached?

The pricing FAQ says Free users receive 500 daily credits with a 2,000-credit monthly maximum. After consuming the monthly maximum, the user must wait for the monthly cycle to reset before accessing more free credits.

Does the user own the generated code?

OnSpace says users maintain complete ownership. Projects can be downloaded directly or connected to GitHub for version history, collaboration, and deployment outside OnSpace. Review the current terms for the exact legal scope.

Can OnSpace AI export code to GitHub?

Yes. The official GitHub guide describes private repositories, automatic commits, bidirectional sync on the default branch, external developer collaboration, and deployment to other hosting services.

Can OnSpace build native mobile apps?

OnSpace positions its projects as iOS and Android applications alongside web apps. It supports direct iOS submission and Android APK or AAB generation. Test required device APIs, performance, and store behaviour on real hardware.

Can OnSpace publish directly to the Apple App Store?

Yes. The current publishing guide describes direct submission to App Store Connect and a 1,000-credit build and submission charge. An active Apple Developer membership and Apple's review are still required.

Can OnSpace publish directly to Google Play?

The current OnSpace publishing documentation says direct Google Play publishing is not supported. Users can build APK or AAB files, then complete a separate Google Play or Expo-based distribution workflow.

Does OnSpace support Sign in with Apple?

Yes. The July 21, 2026 changelog says Sign in with Apple can be enabled in OnSpace Cloud for apps and websites built with OnSpace. Builders must still configure identifiers, redirect behaviour, privacy disclosures, and account-deletion requirements correctly.

Which backend options are available?

OnSpace offers its Cloud service for authentication, PostgreSQL data, storage, Edge Functions, secrets, logs, and administration. It also integrates with Supabase for a separately managed PostgreSQL, authentication, storage, real-time, and serverless backend.

Can OnSpace add payments and subscriptions?

Yes. Stripe supports web payment flows, and RevenueCat can manage eligible iOS subscriptions and in-app purchases. Payment testing, webhook logic, tax, refunds, entitlement security, and store rules still need review.

Is an OnSpace-generated app production-ready?

Not automatically. Test authentication, permissions, database rules, secrets, payments, accessibility, error handling, performance, backups, analytics, privacy, and store compliance. Use GitHub and qualified technical review before relying on the app in production.

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