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
Keep Photo Safe Vault
Photo and video locker in a hidden album on iPhone
$6.99 · In-app purchases
PRICE
$6.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
★ 4.6
42 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/
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 Keep Photo Safe Vault: 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
Implement automatic cloud sync for users.
Assumption to check: Limited cloud backup options
Validate with people who use this workflow before building.
Hypothesis 2
Adopt modern design principles for a fresh look.
Assumption to check: User interface feels dated
Validate with people who use this workflow before building.
Hypothesis 3
Simplify the password recovery and management process.
Assumption to check: Complicated password management
Validate with people who use this workflow before building.
Hypothesis 4
Optimize image loading and caching for better performance.
Assumption to check: Slow photo loading times
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
Photo and video locker in a hidden album on iPhone Keep Photo Safe Vault is one of the best apps to protect your photos and videos stored on your iPhone. Using it you can secure photos, videos, create separate albums, share locked photos, save photos to files, create watch face, click photos or record videos from within the app and more. PIN protection to hide photos on iPhone with the photo locker app. Create separate passcodes for each album to lock photos on iPhone. Use both as a photo locker and video locker. Like million satisfied users, secure your private photos & videos and start using Keep Photo Safe Vault. Once you import all your private images and videos to Keep Photo Safe Vault, you can relax. As no one can access them without the 6-digit PIN. Remember: When photos or videos are imported to the app you are prompted if you want to delete the images from the original location. This means all the images and videos you import will be deleted from your iPhone so that they can be kept hidden from anyone using your phone. Features: • 6-digit PIN lock for your safety. • Facial Recognition. • Easy sharing of locked images from within the app. • Allows creating an unlimited number of albums and separate password for each album. • Option to reduce picture quality to save space. • Click photos or record videos from within the app. • Built-in browser and image downloader for enhanced privacy. • PIN recovery option. Why Use Keep Photo Safe Vault? • The app values your privacy and keeps your private photos on the iPhone secure. • After importing images in a private photo locker before deleting them, the app seeks user’s permission. • Download images secretly with the in-built browser on the private photo locker app. • This photo vault app on iPhone offers options to share secure images and videos directly. • Using the in-built camera in the pic lock app will add the photos or videos directly in the secret folder on iPhone. How to use Keep Photo Safe Vault? • Install Keep Photo Safe Vault. • Set 6 digit PIN. • Set up password recovery email address. • Import Photos & videos from Photos albums. • Safely locked in the Secret Vault. Disclaimer: Locked Photos and Videos are stored on your device and cannot be accessed by anyone but you. Your data is kept 100% private and will not be uploaded to our servers by any means. For any queries email us at [email protected]. We would appreciate your suggestions and look forward to improving the experience for our users. We constantly update our application and run safety checks. For more information you can visit our official website - https://www.duplicatephotosfixer.com/
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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
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BUILD KIT DIFFICULTY
Intermediate
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.
