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
SilentAlert Plus
If you regularly forget your iPhone in silent mode (muted) then this app is for you!
$4.99 · In-app purchases
PRICE
$4.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
★ 3.9
15 ratings · Top 50%
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 included17 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 SilentAlert Plus: map the core Productivity 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
Allow users to choose alert tones and durations.
Assumption to check: Limited customization options for alerts
Validate with people who use this workflow before building.
Hypothesis 2
Implement a recurring alert feature for daily/weekly alerts.
Assumption to check: No recurring alert feature
Validate with people who use this workflow before building.
Hypothesis 3
Enhance the UI with modern design elements and animations.
Assumption to check: Basic UI design
Validate with people who use this workflow before building.
Hypothesis 4
Optimize app performance for better compatibility with older iOS devices.
Assumption to check: Inconsistent performance on older devices
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
If you regularly forget your iPhone in silent mode (muted) then this app is for you! Now with VOIP support! SilentAlert Plus is an enhanced version of SilentAlert with VOIP support. SilentAlert Plus alerts you that your phone is muted in 3 cases: 1. When your switch stays silent for specific time. 2. When you leave the location where it was muted. 3. On arrival to specific locations. - The badge 1 on the SilentAlert Plus icon indicates if your device is muted. Once your device is set to ring again the badge with the number 1 is cleared. Inside the app: -------------- Settings --------- Email Support: Click on this icon to send us the console log. If the application badge contains the number 1 then your phone is muted. (Silent Mode). When no badge is displayed then your phone is not muted. (Ring mode). Alert ----- - Alert Only Once: If enabled SilentAlert Plus will notify you only once when your device is muted, otherwise you will receive notification every x minutes or x km. - Vibrate On Alert: Notification with vibration - Alert Me Every x Minutes If your switch is muted and you set the reminder time to 30 minutes (default) then you will be alerted every 30 minutes that your switch is muted (First alert will be between 30-60 minutes). A badge with the total time will be added to the application icon. In case you switch back to ring mode the alert will be cancelled. - Alert On Move After x km: You can set alert by distance. You can set any distance in km. When you are on the move and the distance between the location you muted the phone and your current location is more than the distance parameter an alert will be displayed with the time your phone was muted. Location --------- You can also add specific locations to alert you if your phone is muted while you enter those locations. The application uses “Location Services” with minimum power usage. The application runs in the background after closing it. You must enable location services and set them to always if you use location alerts. If you encounter a problem or you have a question regarding SilentAlert Plus please feel free to contact us at [email protected] We will assist you ASAP! Battery Disclaimer: Continued use of GPS running in the background can dramatically decrease battery life.
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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
Zustand
Expo Notifications
React Navigation
Async Storage
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.
