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
Seagull-Read&Listen to Stories
Introducing Seagull: A Feast on Reading and Listening Experience
Free · In-app purchases
PRICE
Free
In-app purchases
BUSINESS MODEL
Freemium
No overall Grossing estimate available
RATING
★ 4.1
48 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 should your app do differently? Your note travels with the kit so your coding agent builds around your idea.
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 Seagull-Read&Listen to Stories: map the core Education 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
Curate a broader library with diverse genres.
Assumption to check: Limited story selection compared to competitors.
Validate with people who use this workflow before building.
Hypothesis 2
Ensure all stories can be downloaded for offline use.
Assumption to check: Inadequate offline access for some stories.
Validate with people who use this workflow before building.
Hypothesis 3
Provide clear benefits for each subscription tier and a free trial.
Assumption to check: Subscription options lack clarity and incentives.
Validate with people who use this workflow before building.
Hypothesis 4
Simplify and streamline the UI for better navigation.
Assumption to check: User interface can be cluttered.
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
Introducing Seagull: A Feast on Reading and Listening Experience Unleash Your Imagination Dive into the vast universe of Seagull, where the magic of audiobooks and ebooks awaits your every whim. Whether you prefer the soothing embrace of a narrated tale or the silent company of the written word, Seagull offers stories for every mood and moment. Endless Exploration of Webfictions Embark on an adventure through our extensive collection of over 5,000 high-quality novels. Delve into the realms of romance, urban fantasy, suspense, and more. With new works being released every day, you're in for a treat among the sea of ebooks and sound stories. Powerful Data Recommendation Navigate through the literary sea with our powerful big data charts - 24-hour hot picks, fresh recommendations, weekly favorites, and monthly gems. Discover the hottest novels with a single click, ensuring each story you open is an unforgettable journey. Our diverse genres cater to niche enthusiasts, while our audiobook selection includes Fantasy, Romance, YA & TEEN favorites. A Seamless Reading Experience Our sleek, fluid reading interface guarantees an unparalleled reading experience. Listen to audiobooks with the added option to view text subtitles, allowing you to strike the perfect balance between listening and reading, without compromise. Even if you're new to audiobooks, you can relish your cherished novels in this unique fashion. Ready to Dive In? Get Seagull! Connect with Seagull: - Facebook Page: [Seagull on Facebook](https://www.facebook.com/SeagullApp/) - Contact Email: [email protected] Seagull Monthly Coins Membership Subscription Terms Subscription Duration: 31 days Subscription Fee: US$39.99 After you confirm your purchase, the subscription fee will be charged immediately to your iTunes/Apple account. This membership is an auto-renewing subscription and will continue unless auto-renewal is turned off at least 24 hours before the current subscription period ends. Your Apple account will be charged for renewal within 24 hours prior to the expiration of the current Monthly Coins Membership. Once the payment is completed, the membership period will be extended accordingly. To manage or cancel the subscription, please open: App Store > Apple ID > View Apple ID > Subscriptions > Select Seagull Monthly Coins Membership > Cancel Subscription. If you want to stop the next renewal, please cancel at least 24 hours before the current subscription period expires. Privacy Policy：https://seagullab.com/privacy Terms of Service：https://seagullab.com/termsOfService
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.
SUGGESTED BUILD STACK
React Native
Expo
Supabase
react-navigation
axios
react-native-async-storage
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.
