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
FanFiction | AO3 unofficial
Boost Your Fanfiction Journey with FanFiction Reader Pro - The Ultimate AO3 Companion!
Free · In-app purchases
PRICE
Free
In-app purchases
BUSINESS MODEL
Freemium
No overall Grossing estimate available
RATING
★ 4.7
2,505 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.
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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 included17 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 FanFiction | AO3 unofficial: map the core Books 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 a download feature for offline reading.
Assumption to check: Limited offline access to stories
Validate with people who use this workflow before building.
Hypothesis 2
Enhance search algorithm for better relevance.
Assumption to check: Inconsistent search results
Validate with people who use this workflow before building.
Hypothesis 3
Add font size and background color options.
Assumption to check: No customizable reading options
Validate with people who use this workflow before building.
Hypothesis 4
Introduce commenting and story recommendations.
Assumption to check: Lack of community features
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
Boost Your Fanfiction Journey with FanFiction Reader Pro - The Ultimate AO3 Companion! Step into the world of Archive of Our Own (AO3) like never before with FanFiction Reader Pro! Your gateway to 13 million stories created by 7 million writers – all within a beautifully designed app optimized for the perfect reading experience. If AO3 is your go-to for fanfiction, this app is your ultimate tool to explore it all! Why Choose FanFiction Reader Pro for AO3? •Seamless AO3 Experience• Access the entire AO3 library in a beautiful and elegant interface. •Personalized AO3 Recommendations• Our AI-powered assistant helps you discover new stories tailored to your preferences. •Customize Your AO3 Reading• Pick your perfect themes, fonts, and text sizes to make every AO3 story feel like it’s written just for you. •Offline AO3 Access• Save your favorite AO3 stories and read them offline, wherever you go! •Text-to-Speech (TTS) for AO3 Stories• Enjoy listening to your AO3 fanfics while multitasking. •AI Conversations on AO3• Get summaries, discuss your favorite AO3 fanfics, and receive story suggestions in real time. With FanFiction Reader Pro, your AO3 journey is smarter, more personalized, and more accessible. We celebrate diversity and inclusivity, creating a welcoming space for everyone, including our LGBTQ+ community. Whether you’re commuting, working out, or relaxing, take AO3 with you and enjoy your favorite stories in the way you want! Key Features for AO3 Readers: • Access to 13 million AO3 stories • AI-powered story recommendations and conversations • Built-in Text-to-Speech (TTS) for seamless AO3 listening • Custom themes, fonts, and sizes for an immersive AO3 reading experience • Save stories for offline access Exclusive Subscription Benefits: • Ad-free reading of your AO3 faves • Access to custom themes and AI features • Early access to new app features Subscription Options: • Weekly: $1.99/week • Monthly: $4.99/month • Annual: $44.99/year FanFiction Reader Pro is an unofficial client for Archive of Our Own (AO3). We respect the rights of fanfiction writers and do not host or profit from their content. •Privacy Policy• https://animaonline.com/ao3_plus_plus_privacy_policy.html •Terms of Service• https://animaonline.com/ao3_plus_plus_tos.html Download FanFiction Reader Pro today – your perfect AO3 reading companion awaits!
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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.
SUGGESTED BUILD STACK
React Native
Expo
Zustand
Axios
React Navigation
React Native Gesture Handler
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.
