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
QuizTime - Trivia
Answer interesting quizzes and test your knowledge!
Free · In-app purchases
PRICE
Free
In-app purchases
BUSINESS MODEL
Freemium
No overall Grossing estimate available
RATING
★ 4.5
59,641 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 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 QuizTime - Trivia: map the core Entertainment 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
Broaden quiz topics to include niche subjects and user-generated content.
Assumption to check: Limited variety of quiz topics
Validate with people who use this workflow before building.
Hypothesis 2
Implement a review system for users to rate question quality.
Assumption to check: Inconsistent question quality
Validate with people who use this workflow before building.
Hypothesis 3
Offer a more user-friendly ad experience or an ad-free subscription.
Assumption to check: Ads can be intrusive
Validate with people who use this workflow before building.
Hypothesis 4
Add a detailed user profile with progress tracking and stats.
Assumption to check: Difficult to track personal progress
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
Answer interesting quizzes and test your knowledge! *Description* Quiztime is a fun quiz app involving logos, animals, music, sports, movies and more. It combines thousands of interesting pictures and questions. If you are a logo enthusiast, we have thousands of interesting logo quizzes for you to answer; If you are a music and movie enthusiast, we have thousands of music lyrics and movie lines to test your memory; If you study animals or flowers, our topics of animals and plants can test your ability. Come to Quiz Time, check what you know, learn what you don't know! *Quiz type offered* 1. Logo Quiz 2. Proverbs Quiz 3. Movie Quiz 4. Animal Quiz 5. Music Quiz 6. Flower Quiz 7. Sports Quiz 8. Art Quiz 9. Generally Knowledge 10. Science Quiz 11. Geography Quiz 12. History Quiz * Diamond Member Subscription Instructions* • Subscription period: 1 week, 1 month, 1year (automatic renewal, including all our features: remove ads, 500 gold coins per day, life cd time reduce by half) • Payment: Payment will be charged to iTunes Account at confirmation of purchase. You will not be charged for your free trial period. • Renewal: Subscription automatically renews unless auto-renew is turned off at least 24-hours before the end of the current period. • Account will be charged for renewal within 24-hours prior to the end of the current period, and identify the cost of the renewal. • Cancel renewal: You may turn off the auto-renewal of your subscription via your iTunes Account Settings.No cancellation of the current subscription is allowed during active subscription period. • You may cancel a subscription during its free trial period via the subscription setting through your iTunes account. This must be done 24 hours before the end of the subscription period to avoid being charged. • Any unused portion of a free-trial period,will be forfeited when the user purchase subscription. • Privacy Policy: http://resource.cdn.bbcget.com/QuizTime/QuizTime.html • Terms of use: http://resource.cdn.bbcget.com/Colorfulnight/QuizTime.html If you have any problem about our app, please contact us by email: [email protected]
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
React Navigation
Firebase
Axios
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.
