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
Multiple Photo Sets Timer
Often times we set the timer of the camera and place our iPhone somewhere and wait for it to take a photo of us
$1.99 · In-app purchases
PRICE
$1.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
★ 4.6
14 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 Multiple Photo Sets Timer: map the core Photo & Video 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 clear visual indicators for active sets and timers.
Assumption to check: Difficulty managing multiple sets at once
Validate with people who use this workflow before building.
Hypothesis 2
Allow users to set custom durations and notifications.
Assumption to check: Limited customization for timers
Validate with people who use this workflow before building.
Hypothesis 3
Implement a guided onboarding process to explain features.
Assumption to check: App can be confusing for first-time users
Validate with people who use this workflow before building.
Hypothesis 4
Incorporate photo editing tools for enhanced user experience.
Assumption to check: Lack of advanced editing 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
Often times we set the timer of the camera and place our iPhone somewhere and wait for it to take a photo of us. We go back to check the result and many times we are so delighted that we start the timer again to capture some more photos. By using the app, you can choose the number of sets you would like the app to take, the time interval between them and the number of photos to be taken each time. Pose and wait for the app to take a photo, then change your posture and the app will take another photo automatically. No more going back and forth to reset the timer and pose again. Simple, yet genius! The app is incredibly easy to use, just choose between front and back camera and quickly set the preferred settings from the menu button. The app gives you the following options to choose from: • photos per set (1, 3, 5) • number of sets (3, 5, 10, 15) • pause between sets (3s, 5s, 10s, 15s) • initial countdown (5s, 10s, 15s) • front/back camera • flash on/off • signaling beeps on/off
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
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.
