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.
** Introducing the 13th Doctor's NEW SONIC SCREWDRIVER! **
$1.99 · 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 Doctor Who: Sonic Screwdriver: map the core Entertainment 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 sound effects library
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: Occasional crashes during playback
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: No option for offline access
Validate with people who use this workflow before building.
Hypothesis 4
Assumption to check: Hard to discover sounds
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.
** Introducing the 13th Doctor's NEW SONIC SCREWDRIVER! ** Turn your iDevice into TWELVE different Sonic Screwdrivers with the Official Doctor Who Virtual Sonic Screwdriver app! v2.1.1 adds THE TWELFTH DOCTOR'S SONIC SUNGLASSES! v2.0 adds THE MASTER'S LASER SCREWDRIVER! Shake to extend and tap to fire lasers! You can also now scan QR CODES and more! Celebrate the return of the longest running science fiction TV series in the world, Doctor Who, in sonic style with detailed graphics, authentic sound effects, an augmented reality background option, and so much more. It's like you're using a real Sonic Screwdriver, not your iPhone! So grab your fez and bow tie (bow ties are cool!), and don't leave your TARDIS without it! Features: - Detailed 3D models of 12 of the Doctor's Sonic Screwdrivers, each with their own unique details and features! Whether you've been a fan for 50 years, or only 5, there's a Sonic Screwdriver for you! -- Includes TWELVE different devices: --- The Thirteenth Doctor's Sonic Screwdriver! --- The Twelfth Doctor's Updated Sonic Screwdriver --- The Twelfth Doctor's SONIC SUNGLASSES! --- The Eleventh & Twelfth Doctor's Sonic Screwdriver --- The Ninth & Tenth Doctor's Sonic Screwdriver --- The War Doctor's Sonic Screwdriver --- The Eighth Doctor's Sonic Screwdriver --- The Fourth & Fifth Doctor's Sonic Screwdriver --- The Third Doctor's Sonic Screwdriver --- The Second Doctor's Sonic Screwdriver (with Black & White effects!) --- River Song's Sonic Screwdriver (with Red and Blue settings!) --- The Master's Laser Screwdriver (with firing laser!) - Two background options: The transparent background makes it look like you're holding a real Sonic Screwdriver, not your iPhone, or you can explore the cosmos with the detailed deep space backgrounds! The Second Doctor's Sonic Screwdriver even turns everything Black & White! - Take photos with your sonic and share them with your friends #DoctorWho #SonicScrewdriver - Scan QR CODES, BARCODES and more! - Authentic sounds from the TV show for each and every action! Each Sonic Screwdriver is different. - Simple point and think controls! Touch the screen to activate, and slide your finger up and down to change the pitch of the sound. - Tilt and movement controls! Activate the Sonic Screwdriver and tilt your iPhone to change the pitch. You can even shake the 11th/12th Doctor's Sonic Screwdriver to extend it, just like the Doctor does! - Different zoom and angle settings: See the details up close, or see the whole Sonic Screwdriver on the screen at once! - The Sonic Screwdriver controls your iPhone's flash, making this the coolest flashlight app in the galaxy! The Doctor uses her Sonic Screwdriver to unlock doors and hack computer systems! She defeats Daleks, and scares Cybermen! She scans the shadows for Vashta Nerada, and lights the way to whole new worlds! She saves the universe every day with her trusty Sonic Screwdriver in her pocket! What will you use your Virtual Sonic Screwdriver for? Simply point and think! Your imagination is the limit! * Remember, it doesn't work on wood. BBC, DOCTOR WHO, TARDIS, DALEKS and CYBERMEN are Trademarks of the British Broadcasting Company and are used under license. Licensed by BBC Studios.
Written user reviews are not shown here. Check current App Store reviews >
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.