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.
“Marc’s apps are unbelievable.”
$59.99 · 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 Diverter: 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: Difficulty in discovering new content
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: Limited offline functionality
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: User profile management is cumbersome
Validate with people who use this workflow before building.
Hypothesis 4
Assumption to check: Too many ads for free users
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.
“Marc’s apps are unbelievable.” —David Blaine “That’s incredible!” —Asi Wind Diverter is an incredibly useful approach to the modern-day Mr. Wizard effect… and much more! Diverter lets you transmit a completely free selection to an accomplice while apparently dialling a random phone number. Your spectator can enter any number. Diverter actually calls your chosen accomplice while keeping the on-screen details consistent. Your accomplice secretly receives a free selection made by your spectator through Audio Peek or Web Peek, and can reveal it over the phone call. AutoCall With AutoCall, the spectator can dial the number and press the Call button themselves. Diverter places the genuine phone call without the magician needing to touch the phone, making the final moment feel clean, fair and even more impossible. MULTIPLE PEEK METHODS Audio Peek transmits information directly over the call. Web Peek gives your accomplice a private, automatically updating link showing the latest information. THE PERFECT WIKITEST INTEGRATION Imagine: your spectator looks something up on their phone. You dial a random number, and the person who answers reveals exactly what your spectator is thinking of! DFB LIST SUPPORT Any list you use with DFB is compatible with Diverter. Import a list and covertly select an item using inputs such as Gyro List: simply rotate the phone towards yourself to choose, or use Button T9 and more input methods. NO OTHER APPS NEEDED Built-in inputs include Card Clock Swipe and Gyro Input, which lets you secretly type and transmit any text. POWERFUL APP INTEGRATIONS Diverter integrates with Bridge, Inject, ISO, Earworm, iTHUMP TOXIC+, RainMan, WebFX and more. Use WebFX’s free covert inputs to transmit a playing card, receive information from Bridge, transmit an Inject search, or combine Diverter with your existing magic-app workflow. Diverter’s Open API and Clipboard support make it easy to receive information from other apps. BLUETOOTH DICE Diverter supports Kinetic Mental Dice and Spotted Dice. Your spectator can roll multiple dice (even rerolling during the call), and your accomplice automatically receives the latest values. Third-party apps and Bluetooth hardware are optional, sold separately and not required to use Diverter. INTERNATIONAL AND LANGUAGE SUPPORT Diverter supports custom telephone-number formats for any region. Text throughout the performance UI can be customised for your preferred language. REGULARLY UPDATED SINCE 2013 Diverter has been refined for more than a decade to become one of the most powerful, accurate and affordable apps of its kind. “A POWERFUL app that’s super EASY to use. It’s SO well thought through!” PERFORMANCE RIGHTS INCLUDED Perform Diverter on television, YouTube, Instagram, radio or any other medium at no additional charge. YOU CAN USE DIVERTER FOR: - The Holy Grail: Any Card at Any Number, chosen by a randomly dialled stranger. - The ultimate book test: the stranger reveals the chosen word. - Card reveals. - Truly impossible drawing duplications, including ultra-specific details. - Almost anything you can imagine. - Includes performances and instructional videos. PLUS… - Modern support for the latest versions of iOS, including Dark Mode and Liquid Glass. - Enhanced Mask Number keeps the calling display consistent while protecting the accomplice’s real contact. - No hidden charges or additional subscriptions. - Calls use your existing telephone service. - Works over cellular calls, FaceTime Audio and FaceTime. - No additional apps are required; integrations are entirely optional. - Create, use and share your own lists. - Import any of the thousands of existing Digital Force Bag lists. - Multiple novel inputs, including Gyro Input, Gyro List, T9 Input and Card Clock Swipe. - An unlimited number of effects are possible! This app is for entertainment purposes only. All television, internet, radio and other performance rights are included free with purchase.
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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.