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
Mosavi
MOSAVI is a decentralized encrypted chat application based on the Nostr protocol
Free · In-app purchases
PRICE
Free
In-app purchases
BUSINESS MODEL
Freemium
No overall Grossing estimate available
RATING
★ 4.4
55 ratings · Top 30%
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/
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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 Mosavi: 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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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 advanced algorithms for personalized content suggestions.
Assumption to check: Limited content discovery features
Validate with people who use this workflow before building.
Hypothesis 2
Introduce gamification elements to retain users.
Assumption to check: User engagement drops after initial sign-up
Validate with people who use this workflow before building.
Hypothesis 3
Develop a robust content moderation system to ensure safe interactions.
Assumption to check: Inadequate moderation tools
Validate with people who use this workflow before building.
Hypothesis 4
Allow users to customize their profile layout and themes.
Assumption to check: Lack of customization options for profiles
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
MOSAVI is a decentralized encrypted chat application based on the Nostr protocol. It's completely free and user-friendly, employing end-to-end encryption to ensure your communications with others remain entirely private. The registration process for MOSAVI is extremely simple, requiring no personal information that could potentially expose your privacy, such as email, phone number, or identity details. Key features of MOSAVI include: • End-to-end encryption: All messages use strong encryption technology, viewable only by the sender and receiver. • Anonymous registration: Users log in with a unique private key, no phone number or email required. • Decentralized architecture: Built on the Nostr protocol, eliminating dependence on centralized servers. • Voice and video calls: High-quality voice and video call functionality available. • Group chat creation: Create private chat groups for various contexts like work, family, or friends. MOSAVI offers a truly secure and private chat experience. Join MOSAVI and step into a new era of decentralized social interaction.
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.
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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.
