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
iFixit
iFixit brings the world’s repair knowledge into your pocket
Free · In-app purchases
PRICE
Free
In-app purchases
BUSINESS MODEL
Freemium
No overall Grossing estimate available
RATING
★ 4.7
160 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.
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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 included18 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 iFixit: map the core Reference 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
Provide more detailed videos or animations for tricky repairs.
Assumption to check: Limited visuals for complex repairs
Validate with people who use this workflow before building.
Hypothesis 2
Implement a review system for guides and parts.
Assumption to check: User-generated content can be inconsistent
Validate with people who use this workflow before building.
Hypothesis 3
Enhance onboarding with guided tours and tooltips.
Assumption to check: Difficult navigation for new users
Validate with people who use this workflow before building.
Hypothesis 4
Clarify the benefits of premium features and simplify the purchase process.
Assumption to check: In-app purchases can be confusing
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
iFixit brings the world’s repair knowledge into your pocket. Whether you’re fixing your phone, troubleshooting a laptop, or restoring a kitchen appliance, iFixit has everything you need to fix your stuff with confidence. Step-by-step repair guides will make you successful the first time. Each guide is carefully crafted by our expert technicians and our repair community. Diagnose problems faster with smart troubleshooting, battery analytics, and device insights that help you understand how to extend the life of your stuff. Add your things to your personal Workbench and instantly see compatible parts, tools, and replacement guides. Shop the high-quality tools you need for the job directly inside the app. No guesswork, just the right components when you need them. Get personalized support with FixBot, our AI repair assistant. FixBot leverages our huge library of quality resources to help you find the right solution fast. FixBot will even coach you through your repair with hands-free Voice Mode. Share a picture of the issue, and FixBot will take it from there. Join the millions of people who repair instead of replace. Every successful repair saves money, extends the life of your belongings, and helps reduce e-waste. Join the repair revolution.
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
Axios
React Query
BUILD KIT DIFFICULTY
Advanced
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.
