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
Text to 911
Feel SAFER in CARS with STRANGERS, meeting ONLINE DATES, and LEAVING THE PARTY ALONE.
$0.99 · In-app purchases
PRICE
$0.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
★ 4.0
21 ratings · Top 30%
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/
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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 Text to 911: map the core Medical 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
Implement real-time status updates for sent messages.
Assumption to check: Users sometimes face delays in receiving responses from 911.
Validate with people who use this workflow before building.
Hypothesis 2
Add features like location sharing or emergency contact notifications.
Assumption to check: Limited functionality beyond text messaging.
Validate with people who use this workflow before building.
Hypothesis 3
Optimize backend services for better handling of concurrent requests.
Assumption to check: App stability issues during high traffic times.
Validate with people who use this workflow before building.
Hypothesis 4
Redesign the UI with a more modern look and feel.
Assumption to check: Interface may feel outdated compared to modern 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
Feel SAFER in CARS with STRANGERS, meeting ONLINE DATES, and LEAVING THE PARTY ALONE. Get help in 3 seconds with a single magical tap. THIS APP IS MADE FOR: •People who are DEAF •People who are HARD OF HEARING •People who have HEARING LOSS •People with COMMUNICATION DISORDERS THIS APP SHOULD BE USED: SPEAKING IS NOT SAFE • Aggressor is nearby • Abduction • Domestic Violence • Home Invasion • Kidnapping • Mass Shooting MEDICAL EMERGENCY • Asthma Attack • Car Accident • Choking • Heart Attack/Stroke • Serious Injury • Slip and Fall THIS APP SAVES TIME: • No Typing Words Customized Text Message Appears in Message Field • No Typing Address GPS Location Automatically Appears in Message Field • No Typing Recipient 911 Automatically Appears in Recipient Address Bar
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
Axios
React Navigation
React Native Paper
@react-native-async-storage/async-storage
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.
