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
Video Calls with Santa
* #1 CHRISTMAS APP IN AMERICA *
$2.99 · In-app purchases
PRICE
$2.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
★ 4.7
132 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.
Build your own version
Build Kit
Make this idea yours
A product spec, screen plans, and build steps for your coding agent.
First kit free with a verified email
Add to a Remix
Combine features and design from your favorite apps.
Kit ready. Verify your email to download it.
Generating… usually about a minute.
Make it yours Optional
What should your app do differently? Your note travels with the kit so your coding agent builds around your idea.
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/
Preview a sample Build Kit No email needed
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.
JavaScript is required to complete mailbox verification.
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 Video Calls with Santa: map the core Lifestyle workflow, choose the smallest differentiated feature set, define the data and monetization boundaries, then prototype the riskiest user journey first.
Preview ready. Verify your email to reveal and copy the full prompt.
JavaScript is required to complete mailbox verification. Return to this prompt preview.
Continue in Rork >
Affiliate link: CloneChart may earn a commission at no extra cost
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 games or interactive content during calls.
Assumption to check: Limited features beyond video calls
Validate with people who use this workflow before building.
Hypothesis 2
Implement reminders and confirmations for scheduled calls.
Assumption to check: Scheduling can be unclear
Validate with people who use this workflow before building.
Hypothesis 3
Offer promotional deals or bundled packages.
Assumption to check: High price for calls
Validate with people who use this workflow before building.
Hypothesis 4
Introduce more Santa characters and personalization options.
Assumption to check: Need more Santa options
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
* #1 CHRISTMAS APP IN AMERICA * * TOTALLY UPDATED FOR 2020 * * TOP 100 IN OVER 50 COUNTRIES * * NO HIDDEN COSTS! BUY IT ONCE, USE IT FOREVER * * CALLS ARE AUTOMATICALLY VIDEO RECORDED * * NO SET-UP, JUST DOWNLOAD AND CALL! * * LEARN WHAT YOUR KIDS WANT FOR CHRISTMAS * * CREATE THE PERFECT MEMORY OF KIDS TALKING TO SANTA * * AMAZING FUN! TOTALLY REALISTIC * * A MUST HAVE FOR ANYONE WITH CHILDREN!!! * Why settle for a boring old phone call with Santa, when you can have a super-cool INTERACTIVE VIDEO CALL with Santa instead?! "Video Calls with Santa" lets you have realistic video chats with Santa Claus all year long! Even very young children love actually seeing Santa as he talks directly to them! Choose one of three pre-recorded interactive calls to reward nice children, discipline naughty children, or tell Santa anything you want, any time you want! HOW IT WORKS: Just select a call and start speaking with Santa! Whenever you're done answering a question, tap anywhere on the screen, and he will say his next line of dialogue. Calls are automatically video recorded! It’s that easy! *** #1 USA *** *** #1 UK *** *** #1 Canada *** *** #1 Australia *** *** #1 Ireland *** *** #1 Barbados *** *** #1 Mauritius *** *** #2 New Zealand *** *** #2 Venezuela *** *** #2 Chile *** *** #2 Malta *** *** TOP 5 Hong Kong *** *** TOP 5 Lebanon *** *** TOP 5 South Africa *** *** TOP 5 Cyprus *** *** TOP 10 Argentina *** *** TOP 10 Belgium *** *** TOP 10 Jamaica *** *** TOP 10 Guatemala *** *** TOP 10 Vietnam *** *** TOP 10 Nicaragua *** *** TOP 15 Sweden *** *** TOP 15 Norway *** *** TOP 15 Brazil *** *** TOP 15 Portugal *** *** TOP 15 El Salvador *** *** TOP 15 Sri Lanka *** *** TOP 20 Spain *** *** TOP 20 Azerbaijan *** *** TOP 20 Indonesia *** *** TOP 25 Jordan *** *** TOP 30 Mexico *** *** TOP 30 Egypt *** *** TOP 30 Taiwan *** *** TOP 30 Kazakhstan *** *** TOP 35 Italy *** *** TOP 35 Japan *** *** TOP 35 Switzerland *** *** TOP 50 France *** *** TOP 50 Romania *** *** TOP 50 Ecuador *** *** TOP 100 in over 50 Countries *** *** Spanish Language Version now available -- "Videollamadas Con Santa"!!! *** There are three different calls to choose from: 1) NICE CALL: Use this any time of year, when your child has done something particularly nice, and you want to reward them by making sure Santa knows just how good they've been! Kids love it and want to do more nice things, so they can call Santa again! 2) NAUGHTY CALL: Use this whenever your child has been naughty and you want to get them back in line by letting Santa know that they've been bad! This really works and immediately gets kids back on track so you won't have to call Santa about them being naughty again! 3) SANTA VOICE MAIL: Santa answers his video phone with his cheery "outgoing message", saying he's sorry he missed your call! Just wait for the beep, and you and your children can tell Santa anything you want! Simple, fast, and easy! *** WATCH YOUR KIDS GO NUTS! ***
Written user reviews are not shown here. Check current App Store reviews >
Screenshots
< Scroll to see more >
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
Expo
Zustand
Firebase
React Navigation
TypeScript
BUILD KIT DIFFICULTY
Intermediate
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.
