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
Doctor Who: TARDIS (Official)
Turn your iDevice into the Doctor's TARDIS, and travel through space and time! Or see the TARDIS in the REAL WORLD and take and share photos! All this and more with the Official Doctor Who Virtual TARDIS app!
$1.99 · In-app purchases
PRICE
$1.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
★ 4.7
119 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/
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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 Doctor Who: TARDIS (Official): 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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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 interactive elements and gamification.
Assumption to check: Limited interactive features compared to other entertainment apps
Validate with people who use this workflow before building.
Hypothesis 2
Offer a free trial to showcase premium features.
Assumption to check: In-app purchases may deter users
Validate with people who use this workflow before building.
Hypothesis 3
Implement guided tours or onboarding screens.
Assumption to check: Navigation can be unclear for new users
Validate with people who use this workflow before building.
Hypothesis 4
Regularly update content with new TARDIS facts and episodes.
Assumption to check: Content may feel repetitive over time
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
Turn your iDevice into the Doctor's TARDIS, and travel through space and time! Or see the TARDIS in the REAL WORLD and take and share photos! All this and more with the Official Doctor Who Virtual TARDIS app! The Official Doctor Who Virtual TARDIS app uses Augmented Reality technology to bring you 2 amazing apps in 1: Your imagination is the limit as your iDevice becomes the Doctor's TARDIS! The TARDIS will read your movements giving you full control over it's flight! Place your iDevice on a flat surface to land the TARDIS, complete with light and sound effects. Lift it to take off. Move around to fly. Move fast and you'll fly the TARDIS into the Time Vortex and explore the universe! Next, see the TARDIS in the REAL WORLD! Look around as if you're taking a photo and see the TARDIS spinning above you, or touch the ground where you'd like it to land and watch it materialise before your eyes! Rotate and scale the TARDIS to line up the perfect photo, then take and share your images on Facebook, Twitter or Flickr. Features: - The TARDIS has changed over the past 50 years, select your version to fly through space and time! The app includes the Tenth & Eleventh Doctor's TARDIS designs, as well as the TARDIS from the 80s, 70s and the original from 50 years ago. Choosing this design even makes everything black and white, just like the First and Second Doctor's adventures! - The virtual TARDIS has motion controls to control it's flight, and the live augmented reality background means you can play seamlessly with other toys. - Fly fast to enter the Time Vortex and visit distant galaxies, then fly back again to return to the real world. Your imagination is the limit! - Tap the TARDIS to open the door and see inside! - Authentic graphics and sound effects from the most successful science-fiction series in the world. - Use social media to share photos of your virtual TARDIS adventures! #DoctorWho #VirtualTARDIS Since "borrowing" his TARDIS from the repair shop on Gallifrey, the Doctor has been exploring the endless wonders of the universe. Whether you choose to fly your virtual TARDIS to the planet Skaro, or just to the end of the garden path, get out there and explore! BBC, DOCTOR WHO, TARDIS, are Trademarks of the British Broadcasting Company and are used under license. Licensed by BBC Worldwide Limited.
Written user reviews are not shown here. Check current App Store reviews >
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.
