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.
Lightning fast burst photos.
$4.99 · 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 Fast 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: Camera apps often have slow response times when capturing images.
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: Limited editing features post-capture.
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: Poor handling of permissions and user guidance.
Validate with people who use this workflow before building.
Hypothesis 4
Assumption to check: Inadequate sharing options for photos.
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.
Lightning fast burst photos. Save only the best! Timelapse Video, Timer & Amazing Fast Filters. • Shoots up to 30 photos a second at 12MP • 48MP Photo Capture on supported devices • HDR Photos for improved dynamic range • Timer Repeat for hands-free batch shooting • Save only the best shots to your camera roll • Export Timelapse Videos & Slideshows • Lock focus and exposure just like the pros • Manual Focus and Exposure • Social Sharing & Export Options • Locked Screen Widget for Instant Access • Siri Shortcuts for Quick Camera Launch • Three Grid Density Options (Small, Medium, Large) • Context Menus for Quick Photo Actions ••••••••••••••••••••••••••••••••••• •• THE CRITICS LOVE FAST CAMERA •• "If you want to take the perfect pic, set up group photos on a timer, or make stop-motion videos, this app keeps the interface simple, but offers the tools to make it happen." - CNET "Fast Camera is a must-have app for parents of active children, who won't sit still for a photo." - Kelly Hodgkins, TUAW "Fast Camera is a great utility camera to have. It's really fast, stable, and doesn't clutter up your camera roll." - Marty Yawnick, iPhoneography "…if you're looking for a better way to capture fast-moving targets, I recommend giving Fast Camera a try." - Jennifer Beese, Todays iPhone "Fast Camera is one of the more interesting apps I've come across lately." Leanna Lofte, iMore "Starbucks Pick of the Week, August 6th" - Daily App Show ••••••••••••••••••••••••••••••••••• SHOOT 'EM IN LIGHTNING SPEED With up to 1,500 pics a minute it's the fastest camera on the App Store. Period. SNAP, PICK AND ROLL Take tons of shots quickly...but save only the best pics to your camera roll. TAKE CHARGE OF THE SCENE Set the camera to take continuous photos (default), a burst of photos, or manual shots. CREATE STOP MOTION STORIES Get creative and turn your pics into a stop motion video. SNAP AMAZING GROUP SHOTS Turn on the timer, jump in the pic and choose from multiple shots. GET POWERFUL CONTROLS Manually control locking of focus, exposure, and white balance. NEVER MISS A MOMENT The camera starts shooting as soon as the app opens so you won't miss a thing. TAKE THOUSANDS OF PICTURES There's no limit to the number of photos you can capture. CHANGE ORIENTATION ON THE FLY Switch between landscape and portrait while shooting. TRAVEL THRU TIME Turn Date/Time on in settings to overlay the precise shutter capture time on exported photos and videos. CAPTURE IN STUNNING DETAIL Shoot at full 48MP resolution on supported devices. Enable HDR for improved dynamic range with multi-camera fusion, stabilization, and red-eye reduction. HANDS-FREE BATCH SHOOTING Timer Repeat automatically restarts the countdown after each Manual 5, 10, or 25 batch completes. Keep shooting until you tap stop — ideal for time-lapse photography. MODERNIZED PHOTO LIBRARY Browse your sessions in a beautiful card-based grid. Long-press any photo for quick Preview, Share, or Delete actions. Choose between three grid density options to see more or fewer thumbnails at once. SHARE YOUR WAY Export to Instagram, Email, Video, and more using the native iOS share sheet. ALSO INCLUDES - Auto Focus/Exposure lock on double-tap. Manual controls on triple-tap. - Select All, Invert Selection, and bulk actions for managing large sessions. - Session headers showing photo count and selection status. EXCELLENT CUSTOMER SERVICE Email our 24-hour support team at [email protected] if you have any questions! Visit our website: www.i4fastcamera.com
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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.