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
MRI Toolkit
MRI Toolkit brings practical MRI learning and protocol calculations into one focused app for MRI students, technologists, and imaging professionals.
$4.99 · In-app purchases
PRICE
$4.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
★ 5.0
1 ratings · Top 5%
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 MRI Toolkit: 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 better filtering and sorting options.
Assumption to check: Users find it difficult to manage multiple scans efficiently.
Validate with people who use this workflow before building.
Hypothesis 2
Enhance sharing capabilities with more formats.
Assumption to check: Limited sharing options for scan details.
Validate with people who use this workflow before building.
Hypothesis 3
Create a guided onboarding process to help new users.
Assumption to check: Poor user onboarding experience.
Validate with people who use this workflow before building.
Hypothesis 4
Optimize app performance for lower-end 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
MRI Toolkit brings practical MRI learning and protocol calculations into one focused app for MRI students, technologists, and imaging professionals. Learn basic MRI physics in plain language, calculate voxel dimensions, estimate scan time, explore protocol tradeoffs, and compare common manufacturer sequence acronyms. INCLUDED TOOLS • Basic MRI Physics Follow the journey from proton alignment and RF excitation to relaxation, signal detection, gradients, k-space, SNR, and spatial resolution. • Voxel Calculator Compare 2D and 3D voxel dimensions and volume using FOV, matrix, slice thickness, slab coverage, and slice/partition thickness. • Scan Time Calculator Estimate acquisition time and review timing relationships using TR, phase matrix, NEX, echo train length, TE, TI, and bandwidth. • Protocol Optimizer Explore balanced, resolution, SNR, or scan-time goals and compare current parameters with educational suggestions and clearly stated tradeoffs. • Sequence Acronyms Cross-reference common Siemens, GE, Philips, and Canon names for related MRI sequence families. PRIVACY FIRST MRI Toolkit requires no account and contains no advertising, tracking, or third-party analytics. Calculator inputs remain on the device. EDUCATIONAL USE MRI Toolkit is an educational reference and calculation aid. Calculations are simplified estimates. The app does not diagnose, treat, prevent, or monitor medical conditions and does not replace scanner documentation, institutional policy, device labeling, MRI safety procedures, or qualified clinical judgment.
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
Zustand
React Navigation
react-native-image-picker
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.
