Feature spec
Goal: Send a clear invoice after finishing a job.
- Add a client, line items, a due date, and payment instructions.
- Preview the total before exporting a PDF.
- Keep an editable draft if export fails.
App Overview
OnSpace AI: Mobile App Builder
OnSpace AI – Build powerful AI apps in minutes
Free · In-app purchases
PRICE
Free
In-app purchases
BUSINESS MODEL
Freemium
No overall Grossing estimate available
RATING
★ 3.3
27 ratings · Below Average
Evidence scope: No current overall US chart position is available. Category-chart positions shown in discovery are a separate scope. Revenue is a directional model estimate, not verified earnings.
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Build Kit
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A product spec, screen plans, and build steps for your coding agent.
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What's included18 files
A product spec, phased build plan, differentiation notes, and screen references.
- START_HERE
- AGENTS
- EVIDENCE
- SPEC
- BUILD_PLAN
- DIFFERENTIATION
- skills/
- screens/
Preview a sample Build Kit No email needed
Illustrative example: an invoice app for independent contractors. Your kit is tailored to the app you choose; this is not its generated content.
Screen plan
Invoice editor: Client at the top, editable line items in the middle, total and preview action at the bottom.
States: Empty draft, validation errors beside each field, exporting, and a retry action that preserves the draft.
Differentiate and validate
Hypothesis: Contractors need faster repeat invoices more than more templates.
First experiment: Test duplicating a previous job with five contractors. Watch where they hesitate before expanding the feature set.
The full kit adds a phased build plan, evidence notes, tool prompts, and implementation guidance. It is a plan for your coding agent, not a finished app.
Usage: Mechanics are fair game; never reuse the original name, branding, assets, or verbatim copy.
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Free quick prompt For a smaller starting point
Quick prompt
Good fit for mobile-first iOS and Android prototypes with managed app scaffolding.
// RORK SYSTEM PROMPT
Rork plan preview for OnSpace AI: Mobile App Builder: map the core Developer Tools workflow, choose the smallest differentiated feature set, define the data and monetization boundaries, then prototype the riskiest user journey first.
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Opportunities
AI-GENERATED OPPORTUNITY HYPOTHESES
These are generated suggestions, not verified review quotations. Check current App Store reviews and speak with users before treating a possible gap as a requirement.
Hypothesis 1
Provide advanced customization tools for users to edit templates more freely.
Assumption to check: Limited customization options for templates
Validate with people who use this workflow before building.
Hypothesis 2
Implement a guided onboarding process to help users understand the app.
Assumption to check: Complex navigation for new users
Validate with people who use this workflow before building.
Hypothesis 3
Optimize the app's performance to handle large projects more efficiently.
Assumption to check: Slow performance with many features
Validate with people who use this workflow before building.
Hypothesis 4
Include options for exporting apps to different formats or platforms.
Assumption to check: Limited support for exporting apps
Validate with people who use this workflow before building.
App evidence
Original App Store material. Ratings and screenshots describe the existing app, not proof of demand for your version.
App Store description
OnSpace AI – Build powerful AI apps in minutes. No coding needed. Turn your ideas into powerful AI apps in minutes—no coding needed! OnSpace AI’s free, no-code platform lets you create custom AI applications effortlessly. Just describe your vision, and our agentic AI handles the rest—UI, logic, data, and deployment across iOS and Web. Why OnSpace AI - Zero Coding Required – Anyone can build - Fast & Easy – From idea to app in minutes - AI-Powered – Smart automation does the work - Fully Customizable – Tailor apps to your needs - Cross-platform native UX – Smooth on iOS Key Capabilities - Native UI/UX – Polished, responsive interfaces - Cross-platform Development – iOS support - User Authentication – Email/OTP/social login - Secure Backend Endpoint – API key–protected (e.g., Claude) - App Store Distribution – Publish to Apple App Store - Custom Domain Publishing – Publish to your own domain (Developing) Powered by Spaces (Alpha) – Instant Serverless Backend Spaces is OnSpace’s built-in backend that gives you a production-ready stack with zero setup: - Instant setup and zero maintenance - Managed PostgreSQL with Row Level Security and real-time sync - File Storage for images and documents with automatic optimization - Edge Functions for custom business logic and secure APIs - Visual Dashboard for data operations, user management, and monitoring - Familiar APIs/SDKs (Supabase-like) with full TypeScript support Get started Download now and start creating AI apps for free! Support and Policies For help Email: [email protected] Privacy Policy: https://auth.onspace.ai/privacy-policy Terms of Use: https://auth.onspace.ai/terms-of-use
Written user reviews are not shown here. Check current App Store reviews >
Screenshots
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Build scope
Plan a focused first version with your coding agent. These are planning assumptions, not a delivery guarantee.
Define the first version
Choose one audience and one core workflow. Use the kit to agree on its screens, data, and acceptance criteria before building.
Set boundaries
Decide which secondary features, integrations, and platform support can wait. Your version does not need to reproduce everything in the original.
Check the hard parts
Validate external services, specialist technology, data access, and ongoing costs for your chosen scope.
SUGGESTED BUILD STACK
React Native
Expo
TypeScript
Redux
Firebase
BUILD KIT DIFFICULTY
Expert
From the Build Kit assessment.
A reliable timeline needs an agreed scope and a technical check. Ask your agent to estimate the phases in BUILD_PLAN.md after that review.
