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
EchoLog - Ultrasound Logbook
Log your ultrasound and POCUS scans easily with EchoLog, designed specifically for ultrasound logging
$4.99 · In-app purchases
PRICE
$4.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
N/A
No ratings yet
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 should your app do differently? Your note travels with the kit so your coding agent builds around your idea.
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 EchoLog - Ultrasound Logbook: 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 a more visual report feature with graphs and charts.
Assumption to check: Users may find it hard to track their logs effectively.
Validate with people who use this workflow before building.
Hypothesis 2
Enable users to add custom fields or tags.
Assumption to check: Limited customization for log entries.
Validate with people who use this workflow before building.
Hypothesis 3
Add a notification system for upcoming procedures.
Assumption to check: No reminders for follow-up procedures.
Validate with people who use this workflow before building.
Hypothesis 4
Allow users to export logs in PDF or CSV format.
Assumption to check: No data export options.
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
Log your ultrasound and POCUS scans easily with EchoLog, designed specifically for ultrasound logging. EchoLog is made by two Emergency Medicine physicians from Montreal, Canada, wanting to improve on the current logbook system for Ultrasound certification. After months of design, development, and user feedback, the result is EchoLog: an efficient way to keep track of your scans that is intuitive to use, whether for certification, billing, or skill mastery. No more paper logs that gets lost or that you forget to bring for your shift! We hope you'll support our endeavour to continue to improve EchoLog! Features include: - Intuitive UI EchoLog is designed by a team consisting of physicians, UI, and UX experts, with a focus to help you to log and review your scans with ease. - Smart Scan Count No more counting your scans manually. Automatically excludes indeterminate scans. - Data Security Log your scans securely, with password, Face and Touch ID login to access your data. The data is stored on your phone only, and not sent to any outside service, so rest assured about patient privacy. - Export your Logbook You can export your logbook as a PDF for review or storage. We have worked with CPOCUS to ensure the logbook is compliant with their suite of IP certifications, so your hard work can pay off. - Camera Capture Don't want to type in patient info? Take a picture of the ID instead. - Signature Capture Have your scans signed off by your instructor, right in EchoLog. Still logging your ultrasound and POCUS scans on paper? Use EchoLog instead!
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
Supabase
React Navigation
Zustand
React Native Paper
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.
