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
Blood Pressure Touch: Log&Info
Blood Pressure Touch — Your numbers, organized.
Free
PRICE
Free
No in-app purchases
BUSINESS MODEL
Free
No overall Grossing estimate available
RATING
★ 4.5
371 ratings · Top 15%
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.
Build your own version
Build Kit
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A product spec, screen plans, and build steps for your coding agent.
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What should your app do differently? Your note travels with the kit so your coding agent builds around your idea.
What's included15 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 Blood Pressure Touch: Log&Info: map the core Health & Fitness 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
Blood Pressure Touch — Your numbers, organized. Blood pressure fluctuates. Paper gets lost. Memory fails. Blood Pressure Touch gives you one clean place to log every reading and understand what the data means over time. Designed for anyone who tracks blood pressure regularly — and for the doctors who need to review it. What's inside： Sliding picker Tap to select a value, no typing required. Trend charts Clear and intuitive — quickly grasp blood pressure patterns over time. BP classification Color-coded ranges, with a gentle heads-up when numbers drift outside normal. Timeline log All records sorted newest first. Scroll back as far as you need. Health articles Curated reads to help you understand blood pressure better. Disclaimer: Blood Pressure Touch is a self-tracking tool. It does not measure blood pressure, nor does it provide medical advice. Always rely on your physician for diagnosis and treatment decisions.
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
Implement option for importing data from health apps.
Assumption to check: Users often find manual data entry tedious.
Validate with people who use this workflow before building.
Hypothesis 2
Add charts and graphs to show trends over time.
Assumption to check: Limited data visualization options.
Validate with people who use this workflow before building.
Hypothesis 3
Integrate notifications to remind users to log their blood pressure.
Assumption to check: No reminders for logging entries.
Validate with people who use this workflow before building.
Hypothesis 4
Allow users to customize notifications and data views.
Assumption to check: Lack of user customization for settings.
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
React Navigation
@react-native-async-storage/async-storage
@react-native-community/datetimepicker
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.
