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.
Want to secretly capture photos and videos without anyone notices, here is the app that you need: SP Camera.
$9.99 · In-app purchases
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.
A product spec, screen plans, and build steps for your coding agent.
First kit free with a verified email
Combine features and design from your favorite apps.
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Generating… usually about a minute.
What should your app do differently? Your note travels with the kit so your coding agent builds around your idea.
A product spec, phased build plan, differentiation notes, and screen references.
Illustrative example: an invoice app for independent contractors. Your kit is tailored to the app you choose; this is not its generated content.
Goal: Send a clear invoice after finishing a job.
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.
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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Good fit for mobile-first iOS and Android prototypes with managed app scaffolding.
Rork plan preview for SP Camera: 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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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
Assumption to check: Limited editing features compared to desktop apps
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: Lack of cloud backup for photos
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: In-app purchase confusion
Validate with people who use this workflow before building.
Hypothesis 4
Assumption to check: Performance issues with high-resolution images
Validate with people who use this workflow before building.
Original App Store material. Ratings and screenshots describe the existing app, not proof of demand for your version.
Want to secretly capture photos and videos without anyone notices, here is the app that you need: SP Camera. With SP Camera, you can record video, or take pictures without being seen while the device shows one of fake backgrounds. Simulate that you are browsing the web, a blog or leave the device on a table showing a still image or a time clock while recording. Automatically record and save video if any motion occurs on the scene with Motion Detector Sensor. With built-in Photo Timer, this app automatically captures photos every few seconds without touching the capture button again. Save your photos and videos in the password protected private folder. Moreover, you can hide all the UI control buttons to simulate a real spy experience. MODE * Photo: automatically capture photo without tap any buttons with Photo Timer up to 48MP * Video: record video and capture still photo at the same time (snap 8MP photo while recording 4K video) * Motion Detector: automatically record only if any motion occurs on the scene * Slow Motion: support high frame rate or slow motion video recording on both front and rear camera * Timelapse: record video in fast motion action up to 32x * Horizontal: always record video in landscape even the device is held in portrait orientation * Double Cameras: simultaneously record video with two different camera lens CAMERA • Manual camera control with focus, exposure, ISO, and white balance adjustment • Ability for photo capturing & video recording at the same time for all video modes • Save more storage with changeable video recording resolution between QVGA 240p, VGA 480p, HD 720p, FullHD 1080p or 4K 2160p • Ability to zoom in & zoom out up to 10x • Support dual and triple rear camera lens devices • Automatically boost low light photo & video visibility and quality • Limitable video recording duration and numbers of Photo Timer photos • Cinematic video stabilization support for shake-free video recording • Tap on camera view area to focus and adjust exposure • Adjustable auto or manual focus and exposure • Ability to record silent video (without sound) • Support volume buttons actions for photo capturing and video recording • Save photo and video in passcode protected private app folder or save to camera roll • Ability to add date and time stamp when capturing photo or recording motion detector video • Choose different styles of Double Cameras mode recording including Picture-in-Picture, Split View, and Dual Files INTERFACE • Automatic Mode: auto perform record action and other actions when app launch • Easy Mode: easily tap any area to take photo and double tap to start/stop video recording • Screen is completely black simulate the device is turned off • No camera flash or on-screen flash is appeared • Fake other people that you're on other activities by using fake backgrounds • Alternative image slideshow or animated clock or reactive web browsing fake backgrounds • Ability to your own image fake backgrounds • Dimmed screen with zero brightness in black background • Adjustable the visibilty of the UI transparency • Movable and resizable camera preview • Clarify the actions correctly with Text, Voice, and Haptic Feedback PASSCODE • No one can stop your recording by secure the recording and lock UI buttons with passcode • Advanced passcode system can lock app startup, lock camera UI buttons, or lock gallery viewing • Hide App Folder private photos and videos with failed passcode input GALLERY • Built-in gallery for viewing photos and videos and easy sharing • Recover deleted photos and videos within 7 days with Trash Folder REMOTE • Wireless Apple Watch Remote supported for recording control NOTES: • Built-in Gallery Viewer unable to play slow-mo video in slow motion action. • Double Cameras mode required iPhone or iPad with A12 or A12X chipset or later. • 48MP photos capturing required iPhone 14 Pro series or iPhone 15 series or later. • 4K 120fps recording required iPhone 16 Pro series or later.
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Plan a focused first version with your coding agent. These are planning assumptions, not a delivery guarantee.
Choose one audience and one core workflow. Use the kit to agree on its screens, data, and acceptance criteria before building.
Decide which secondary features, integrations, and platform support can wait. Your version does not need to reproduce everything in the original.
Validate external services, specialist technology, data access, and ongoing costs for your chosen scope.
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.