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
EXIF Tool - Metadata Tool
[EXIF Tool] is the most powerful EXIF and meta data tool for your photos and videos.
$2.99 · In-app purchases
PRICE
$2.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
★ 3.5
6 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 included18 files
A product spec, phased build plan, differentiation notes, and screen references.
- START_HERE
- AGENTS
- EVIDENCE
- SPEC
- BUILD_PLAN
- DIFFERENTIATION
- skills/
- screens/
Preview a sample Build Kit No email needed
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 EXIF Tool - Metadata Tool: 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
Add more comprehensive editing capabilities including batch editing and custom templates.
Assumption to check: Limited editing features compared to competitors
Validate with people who use this workflow before building.
Hypothesis 2
Implement a modern design with intuitive navigation.
Assumption to check: User interface feels outdated
Validate with people who use this workflow before building.
Hypothesis 3
Ensure all metadata fields are consistently displayed and editable.
Assumption to check: Inconsistency in metadata display
Validate with people who use this workflow before building.
Hypothesis 4
Introduce cloud storage options for user edits and backups.
Assumption to check: Lack of cloud backup for metadata edits
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
[EXIF Tool] is the most powerful EXIF and meta data tool for your photos and videos. You can view and modify EXIF and meta data directly not only from Photos app but also from any 3rd party app. For those who want more efficient browsing, it also supports powerful photo browser. It supports all the image formats including heic, jpg, png and gif. It also supports video. For those who're worried about the privacy, [Exif Browser] enables you to strip EXIF and meta data from your photo. You can choose whether to remove all meta data or just GPS/Location data. You can also edit each of the meta data items if you want. • Supports photos extension - View exif data from Photos app and 3rd party apps. • Also supports powerful photo browsing and viewing. • Display basic info: file name, file size, dimension, orientation, duration, ... • Display detailed EXIF info: date time, aperture, brightness, fNumber, shutter speed, focal lenght, ISO speed, exposure, flash, lens, camera, software, ... • Display GPS / location info: altitude, latitue, longitude, human-readable address, map, ... • Display GIF info: delay time, loop count, ... • Supports all formats including heic, jpg, png, gif, live photo and video. • Edit each of meta data items. • Share photo with all meta data removed. • Share photo with GPS / location removed. • Show raw data.
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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
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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.
