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
FlipTimee(Flip Clock)
FlipTimee is an exquisite and elegant flip clock application
$0.99 · In-app purchases
PRICE
$0.99
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 should your app do differently? Your note travels with the kit so your coding agent builds around your idea.
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/
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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 FlipTimee(Flip Clock): map the core Lifestyle 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
Allow more backgrounds and font choices.
Assumption to check: Limited customization options compared to competitors
Validate with people who use this workflow before building.
Hypothesis 2
Add animations or sounds to confirm changes.
Assumption to check: No user feedback on settings changes
Validate with people who use this workflow before building.
Hypothesis 3
Include alarms or timers for added functionality.
Assumption to check: Minimal features beyond clock display
Validate with people who use this workflow before building.
Hypothesis 4
Enable users to share their clock designs on social media.
Assumption to check: Lack of social sharing features
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
FlipTimee is an exquisite and elegant flip clock application. It has a minimalist design and provides an extremely simple way to display time, suitable for all kinds of people. Application scenario: -All kinds of people who are pursuing exquisite and elegant -All kinds of people who want to focus on study & work -All kinds of people who are looking for indoor shooting & creative background -All kinds of people who have a strong need for time Features: - Fully customizable panel theme colors - Energy saving mode. Without touching the screen for a period of time, the brightness will automatically decrease - Switch between 12/24 hours - Horizontal and vertical screen switching, iPad split screen switching - Adjust the screen brightness by sliding up and down, and restore the brightness after exiting the App - Specific seconds can be displayed to remind you of the elapsed time every second - Extremely optimized, application size less than 1MB note: -When the app is running, the screen will stay on and the iPhone ’s automatic screen lock will be disabled
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
Zustand
moment.js
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expo-av
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.
