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
Ubox
A new client for power saving intelligent video device
Free · In-app purchases
PRICE
Free
In-app purchases
BUSINESS MODEL
Freemium
No overall Grossing estimate available
RATING
★ 4.8
28,897 ratings · Top 5%
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/
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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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Quick prompt
Good fit for mobile-first iOS and Android prototypes with managed app scaffolding.
// RORK SYSTEM PROMPT
Rork plan preview for Ubox: map the core Utilities workflow, choose the smallest differentiated feature set, define the data and monetization boundaries, then prototype the riskiest user journey first.
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App evidence
Original App Store material. Ratings and screenshots describe the existing app, not proof of demand for your version.
Screenshots
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App Store description
A new client for power saving intelligent video device Main Features: - Support user register and binding device to user account - Support power-saving mode and remote wakeup - Support TF recording and cloud recording video - Support notification with a snapshot - Support notification with AI face recogization - Live view H.264 720P/1080P up to 30FPS - Dual way audio - Remote Parameter setting - Remote query alert and playback - Support WiFi doorbell - Support WiFi battery camera - Support 4G wireless battery camera - Support Solar WiFi/4G wireless camera - Support Panoramic camera 【30-day recurring cloud storage with annual subscription】 1. Subscription cycle: one year 2. Subscription price: US$214.99 per year for 6 devices, US$179.99 per year for 5 devices, US$144.99 per year for 4 devices, US$109.99 per year for 3 devices, US$74.99 per year for 2 devices, and US$39.99 per year for 1 device 【30-day recurring cloud storage half-year subscription instructions】 1. Subscription cycle: 6 Months 2. Subscription price: US$119.99 per year for 6 devices, US$102.99 per year for 5 devices, US$82.99 per year for 4 devices, US$62.99 per year for 3 devices, US$40.99 per year for 2 devices, and US$20.99 per year for 1 device 【30-day recurring cloud storage monthly subscription instructions】 1. Subscription cycle: 1 Months 2. Subscription price: US$19.99 per year for 6 devices, US$17.99 per year for 5 devices, US$14.49 per year for 4 devices, US$10.49 per year for 3 devices, US$6.99 per year for 2 devices, and US$3.99 per year for 1 device 【7-day recurring cloud storage per year subscription instructions】 1. Subscription cycle: one year 2. Subscription price: US$119.99 per year for 6 devices, US$99.99 per year for 5 devices, US$79.99 per year for 4 devices, US$59.99 per year for 3 devices, US$39.99 per year for 2 devices, and US$20.49 per year for 1 device 【7-Day Recurring Cloud Storage Half-Year Subscription Instructions】 1. Subscription cycle: 6 Months 2. Subscription price: US$59.99 per year for 6 devices, US$49.99 per year for 5 devices, US$40.99 per year for 4 devices, US$29.99 per year for 3 devices, US$19.99 per year for 2 devices, and US$10.49 per year for 1 device 【7-Day Recurring Cloud Storage Monthly Subscription Instructions】 1. Subscription cycle: 1 Months 2. Subscription price: US$10.99 per year for 6 devices, US$8.99 per year for 5 devices, US$6.99 per year for 4 devices, US$4.99 per year for 3 devices, US$3.49 per year for 2 devices, and US$1.99 per year for 1 device 【Renew and unsubscribe】 Payment: After the user confirms the purchase and makes the payment, it will be credited to the iTunes account Unsubscribe: To unsubscribe, manually open the iPhone Settings -->enter the iTunes Store and App Store -->click Apple ID, select View Apple ID, enter the Account Settings page, click Subscribe, and select unsubscribe. Renewal: 24 hours before the expiration of Apple's subscription period, deduct the service charge for the next subscription period from your iTunes account and extend the validity of the member corresponding to the subscription period. If the deduction fails due to insufficient balance in the iTunes account, the app has the right to suspend/terminate your cloud video service. User Agreement: http://doc.ubianet.com/pages/ubox/term-of-service.html Privacy Policy: http://doc.ubianet.com/pages/ubox/privacy-policy.html Cloud Service Agreement: https://doc.ubianet.com/pages/ubox/cloudservice.html Cloud service auto-renewal agreement: https://doc.ubianet.com/pages/ubox/cloudservice-renew.html
Written user reviews are not shown here. Check current App Store reviews >
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
Expand to support more file formats and types.
Assumption to check: Limited file type support
Validate with people who use this workflow before building.
Hypothesis 2
Implement better categorization and tagging features.
Assumption to check: Inconsistent file organization
Validate with people who use this workflow before building.
Hypothesis 3
Add offline access and sync features for better usability.
Assumption to check: No offline capabilities
Validate with people who use this workflow before building.
Hypothesis 4
Enhance sharing capabilities to include multiple platforms and methods.
Assumption to check: Limited sharing options
Validate with people who use this workflow before building.
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
axios
react-navigation
@react-native-async-storage/async-storage
expo-file-system
BUILD KIT DIFFICULTY
Advanced
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.
