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
Price Tracker: AnyTracker
Stay up-to-date on every important web change with AnyTracker, the user-friendly web monitoring app designed specifically for iOS devices
Free · In-app purchases
PRICE
Free
In-app purchases
BUSINESS MODEL
Freemium
No overall Grossing estimate available
RATING
★ 3.6
38 ratings · Top 50%
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 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 Price Tracker: AnyTracker: map the core Shopping 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
Integrate more retailers and price sources.
Assumption to check: Limited product availability for tracking.
Validate with people who use this workflow before building.
Hypothesis 2
Implement a cleaner design with better spacing.
Assumption to check: User interface can feel cluttered.
Validate with people who use this workflow before building.
Hypothesis 3
Optimize push notification delivery and reliability.
Assumption to check: Notifications can be delayed or missed.
Validate with people who use this workflow before building.
Hypothesis 4
Provide clearer communication about subscription benefits.
Assumption to check: In-app purchases can confuse users.
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
Stay up-to-date on every important web change with AnyTracker, the user-friendly web monitoring app designed specifically for iOS devices. AnyTracker can track text, numbers and prices. It automates the boring stuff for you. Never Miss Important Updates - AnyTracker provides timely background checks on all the websites you are interested in. The websites can be updated with an interval down to 5 minutes, and you will therefore be notified immediately on changes. Tailored Notifications - When a change on a monitored website is detected, you will receive a notification. You can configure the notification to your liking, for example to be notified when the price of a product has dropped by a certain amount. Track Stocks, Crypto and Currencies - In addition to world-leading website change detection, AnyTracker provides fresh financial data. Just like anything else, it can be displayed in a beautiful chart on your home screen. Manual Entries and More - AnyTracker makes it easy to keep track of whatever metric you like, for example your weight or your savings. In addition, you can track social media stats like YouTube subscribers. AnyTracker has been tested to work with all your favorite online shopping sites, like Amazon, eBay, AliExpress, Costco, Target, Walmart, Etsy, and Shein. Stay informed about web updates with AnyTracker - your personal web monitoring assistant. Legal and Regulatory In-app purchases and subscriptions are governed by Apple's standard terms: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
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.
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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.
