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
Popia - AI Stories & Creators
Create AI characters, enter interactive stories, and build fictional worlds that evolve with every conversation.
Free
PRICE
Free
No in-app purchases
BUSINESS MODEL
Free
No overall Grossing estimate available
RATING
★ 4.4
1,826 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 included16 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 Popia - AI Stories & Creators: 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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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
Create AI characters, enter interactive stories, and build fictional worlds that evolve with every conversation. Popia is an AI-powered character story platform where your imagination becomes interactive. Create original characters, explore immersive fiction, generate visual scenes, and shape branching stories through natural conversations. ● Create AI Characters Design original characters with unique personalities, appearances, memories, voices, and backstories. Customize every detail and watch them come alive through ongoing conversations. ● Enter Interactive Stories You are part of every story. Your choices influence conversations, unlock new scenes, and guide how each narrative develops over time. ● Build Your Own Worlds Explore romance, fantasy, mystery, royal drama, sci-fi, supernatural adventures, slice-of-life stories, and completely original fictional worlds. ● Generate Visual Scenes Bring story moments to life with AI-powered images and visual scenes inspired by your conversations and character interactions. ● Continue Stories Over Time Characters can remember previous conversations, important events, and story details, helping each narrative continue naturally. ● Discover Community Characters Find characters and worlds created by the community, or start from scratch and build a story universe that is uniquely yours. Whether you are a storyteller, creator, dreamer, fiction lover, or someone looking for a richer AI storytelling experience, Popia gives you the tools to create characters, tell stories, and build worlds that keep evolving. Start with one character. Build a world that is uniquely yours. Note: Popia includes content moderation systems to support safe and policy-compliant user-generated content. Privacy Policy: https://www.popia.app/legal/en/privacy Terms of Service: https://www.popia.app/legal/en/terms
Written user reviews are not shown here. Check current App Store reviews >
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
Provide advanced styling features for stories.
Assumption to check: Limited story customization options
Validate with people who use this workflow before building.
Hypothesis 2
Incorporate features for users to comment and share stories.
Assumption to check: Lack of social interaction
Validate with people who use this workflow before building.
Hypothesis 3
Enhance AI algorithms for better story generation.
Assumption to check: AI suggestions may vary in quality
Validate with people who use this workflow before building.
Hypothesis 4
Add offline storage for downloaded stories.
Assumption to check: No offline access to stories
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.
SUGGESTED BUILD STACK
React Native
Expo
Zustand
axios
react-navigation
Firebase
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.
