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
Marco Polo - Video Messenger
Marco Polo is the video chat app that brings you closer to the people who matter most without asking you to compromise on trust.
Free · In-app purchases
PRICE
Free
In-app purchases
BUSINESS MODEL
Freemium
No overall Grossing estimate available
RATING
★ 4.8
2,163,965 ratings · Top 5%
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 included18 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.
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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 Marco Polo - Video Messenger: map the core Social Networking workflow, choose the smallest differentiated feature set, define the data and monetization boundaries, then prototype the riskiest user journey first.
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App evidence
Original App Store material. Ratings and screenshots describe the existing app, not proof of demand for your version.
Screenshots
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App Store description
Marco Polo is the video chat app that brings you closer to the people who matter most without asking you to compromise on trust. ONE VIDEO IS WORTH A THOUSAND TEXTS Communicate face-to-face in a private, ad-free space with no interruptions or intrusions. This award-winning video chat app isn’t social media. There are no “likes” or comparisons, and there are no tricks to keep you on the app for longer than you wish. SIMPLE, CONVENIENT, ANYTIME CONNECTION Send a video. Get one back. Talk one-on-one or in groups. Continue the conversation on your own schedule. YOU DON’T HAVE TO COMPROMISE ON TRUST Our purpose? To help people feel close. To fulfill it, Marco Polo does things differently. We monetize responsibly. The Marco Polo Plus subscription plan allows us to make money in a way that’s true to our purpose – no ads, no selling your data – while maintaining a free service for the majority of our community. We hold ourselves accountable. Earning your trust is vital to our team, from the technology we create to the business decisions we make. We measure our impact. Does our product deliver on our promise and our purpose? Does it make people happier? Research indicates yes, and we commit to conducting this research regularly to ensure we stay on track. CHOOSE THE VERSION THAT FITS YOUR LIFE Marco Polo is FREE, with: Unlimited chats and groups Emoji reactions and fun special effects Sharecast, our newest feature. Send one video to everyone in your circle, and only you see reactions and replies. It’s the convenience of groups with no cross-conversations. Marco Polo Plus offers premium features including: 1.5-3x speed control Background listening Custom and animated emojis 6 Plus Passes so you can share 2 months free with friends and family Marco Polo Plus Family Save with up to six memberships with one plan. Plus Family is not limited to members within one household. - Payments are charged to the user's Apple ID account at confirmation of purchase. - Subscriptions automatically renew unless the user cancels at least 24 hours before the end of the current period. - The account is charged for renewal within 24-hours before the end of the current period. - Users can manage and cancel subscriptions in their account settings on the App Store. Terms of Service: https://www.marcopolo.me/terms/
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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
Implement robust error handling and retry mechanisms.
Assumption to check: Users often experience issues with video uploads failing.
Validate with people who use this workflow before building.
Hypothesis 2
Optimize data fetching and caching strategies.
Assumption to check: App can be slow with large contact lists.
Validate with people who use this workflow before building.
Hypothesis 3
Add basic editing tools (trim, filters) for user videos.
Assumption to check: Limited editing options for video messages.
Validate with people who use this workflow before building.
Hypothesis 4
Provide customizable notification settings for users.
Assumption to check: Notifications can be overwhelming.
Validate with people who use this workflow before building.
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.
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BUILD KIT DIFFICULTY
Expert
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.
