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
LockSpace-GuardView Pro
LockSpace: A professional local video playback and management tool, compatible with all formats, offering smooth, high-definition playback.
Free · In-app purchases
PRICE
Free
In-app purchases
BUSINESS MODEL
Freemium
No overall Grossing estimate available
RATING
★ 3.4
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 included16 files
A product spec, phased build plan, differentiation notes, and screen references.
- START_HERE
- AGENTS
- EVIDENCE
- SPEC
- BUILD_PLAN
- DIFFERENTIATION
- skills/
- screens/
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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 LockSpace-GuardView Pro: map the core Entertainment 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
Optimize video loading and buffering strategies.
Assumption to check: App performance issues during streaming
Validate with people who use this workflow before building.
Hypothesis 2
Implement robust offline download options for users.
Assumption to check: Limited offline download capabilities
Validate with people who use this workflow before building.
Hypothesis 3
Enhance search and recommendations with better algorithms.
Assumption to check: Poor content discovery features
Validate with people who use this workflow before building.
Hypothesis 4
Simplify the subscription process and clarify benefits clearly.
Assumption to check: In-app purchase process confusion
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
LockSpace: A professional local video playback and management tool, compatible with all formats, offering smooth, high-definition playback. Core Function: Professional Video Processing Experience LockSpace focuses on the core needs of local video playback and management, providing users with an efficient and stable end-to-end solution to adapt to various local viewing and video organization scenarios. Multi-format Compatibility, Zero-barrier Import: Supports direct import of local videos from the system file manager, fully compatible with mainstream video formats such as MP4, MKV, and AVI. No additional format conversion tools are needed; videos can be used immediately after import, greatly improving operational efficiency. High-definition Smooth Playback, Upgraded Viewing Experience: Built-in professional player ensures stable, stutter-free playback, accurately adapting to different viewing paces. Intelligent Management, More Efficient Video Organization: All imported videos are automatically aggregated into a dedicated video library, with clear and intuitive categorization; supports video renaming, deleting redundant files, and other management operations, helping users quickly organize local video resources and say goodbye to disorganization. Download LockSpace now for more efficient and easier video playback and management. Why not unlock your exclusive membership plan? We offer a variety of premium plans including weekly, annual, and lifetime memberships, allowing you to flexibly choose the option that best suits your needs and unlock full functionality without any barriers. Once you confirm your subscription, the corresponding fee for your chosen plan will be automatically deducted from your account. To fully protect your usage rights, the membership plan will automatically renew at the end of each service period. To terminate this premium service, please disable the automatic renewal function through your account management page at least 24 hours before the current service period expires. The renewal fee will be automatically deducted from your account within 24 hours before the end of each service period. You can change or terminate your service at any time through your account management portal. Join now and unlock a new, efficient, and worry-free user experience! User Agreement: https://lockspaceapp.com/terms/ Privacy Policy: https://lockspaceapp.com/privacy/ Customer Service Email: [email protected]
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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
Supabase
Zustand
React Navigation
React Native Video
BUILD KIT DIFFICULTY
Intermediate
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.
