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
EasyDrops IV Drip Calculator
EasyDrops IV Drip Calculator – Precision at Your Fingertips
$0.99 · In-app purchases
PRICE
$0.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
★ 4.3
6 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 included16 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 EasyDrops IV Drip Calculator: 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
Add advanced calculations and settings for professionals.
Assumption to check: Limited calculation features compared to competitors
Validate with people who use this workflow before building.
Hypothesis 2
Implement a cohesive design language across all screens.
Assumption to check: Inconsistent UI design
Validate with people who use this workflow before building.
Hypothesis 3
Integrate feedback collection after calculations.
Assumption to check: Lack of user feedback options
Validate with people who use this workflow before building.
Hypothesis 4
Enable offline mode for better usability in various environments.
Assumption to check: No offline access
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
EasyDrops IV Drip Calculator – Precision at Your Fingertips Designed for Nurses, Paramedics, and All Healthcare Professionals EasyDrops is a powerful, easy-to-use tool that helps medical professionals quickly calculate accurate drip rates for intravenous (IV) therapy using gravity drip sets. Whether you're at the bedside, in the ER, or out in the field, this app simplifies the math so you can focus on what matters most—your patients. FEATURES: - Calculate drip rate (drops/minute) using either the DURATION of the infusion or the FLOW RATE (mL/min or mL/hour), and vice-versa! - Easily convert between FLOW and DRIP RATE - Drop counter: easily calculate the drip rate of a currently running drip with an intuitive UI - Create custom drop factors to suit any IV drip set in the world EasyDrops was meticulously designed for IV gravity drip sets. For IV drips using a mechanical infusion pump, check out the exceptionally powerful and unique EasyIV Calculator. EULA: https://sites.google.com/view/codeblueapp/easydrops/easy-drops-eula Privacy Policy: https://sites.google.com/view/codeblueapp/easydrops/easy-drops-privacy-policy
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
React Navigation
React Native Paper
Zustand
Expo Secure Store
BUILD KIT DIFFICULTY
Starter
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.
