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
InkTale - Curated Stories
Hey all novel lovers!
Free · In-app purchases
PRICE
Free
In-app purchases
BUSINESS MODEL
Freemium
No overall Grossing estimate available
RATING
★ 4.0
624 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 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 InkTale - Curated Stories: 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
Curate stories from various sources to offer unique content.
Assumption to check: Limited story selection compared to larger platforms
Validate with people who use this workflow before building.
Hypothesis 2
Simplify subscription model and provide clear benefits.
Assumption to check: In-app purchase options may be confusing
Validate with people who use this workflow before building.
Hypothesis 3
Focus on a clean, minimalistic design for better navigation.
Assumption to check: User interface can be cluttered
Validate with people who use this workflow before building.
Hypothesis 4
Implement personalized suggestions based on user preferences.
Assumption to check: Lack of personalized recommendations
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
Hey all novel lovers! We are InkTale – a carefully crafted reading app dedicated to bringing readers wonderful stories from around the world. Whether you enjoy heartwarming romance, imaginative fantasy, or engaging fictional tales, InkTale offers a vast and growing library for every book lover. We feature original English stories created by talented authors from all over the globe. Our rich collection includes many beloved genres such as heartwarming romance, imaginative fantasy, charming teen stories, heartfelt contemporary fiction, and imaginative werewolf-themed tales focused on friendship, destiny, and emotional connections. Popular genres loved by our readers include: · Heartwarming romance and sweet love stories · Fantasy tales filled with magic and adventure · Werewolf stories centered on fate, destiny, and emotional bonds · Youth and coming-of-age stories · Modern romance and heartfelt relationships · Engaging long-form series and concise short stories With over a million chapters of genuine, high-quality stories, you can always find something that fits your mood. Explore popular titles such as Honey, Let's Get Married, Ex-husband's Regrets Worth Nothing, Poor Luna, His Regret: Carrying the Alpha's Hidden Son, and many more exclusive stories updated regularly. We strive to provide the best reading experience possible: · Enjoy daily new chapter updates from your favorite series · Discover trending books through our curated rankings · Clear and detailed categories to help you find your next favorite read · Personalized recommendations based on your reading habits · Adjustable fonts, text sizes, and eye-friendly night mode · Free rewards and coins to unlock premium content · Easy-to-use interface that supports reading anytime, anywhere InkTale also supports aspiring authors to share their creativity with the world: · Publish your own stories and reach millions of readers · Gain exposure through our in-app and social promotion channels · Receive professional guidance and editor support · Participate in writing courses to improve your skills · Earn fair rewards and revenue share for your work Join millions of readers and writers in our growing community. Whether you love reading or creating stories, InkTale is the perfect place for you. Download InkTale now and step into a wonderful world of stories. [Subscription Agreement] 1. Service Name: Week Subscription 2. Subscription Period: 1 week 3. Subscription Price: $19.99(1 week) 4. Subscription Benefits: subscribers can claim 200 coins every day 5. Buying a weekly subscription service will automatically debit your iTunes account and extend the service period of one week 24 hours before the week service expires. 6. If you want to unsubscribe, please open the iOS "Settings" --> enter "iTunes Store and App Store" -> click "Apple ID", select "View Apple ID", go to the "Account Settings" page, click "Subscribe" ", choose Week Subscription to unsubscribe. If you do not unsubscribe at least 24 hours before the end of the subscription period, this subscription will be automatically renewed. User Agreement: https://www.inktale.net/#/userAgree Privacy Policy: https://www.inktale.net/#/privacy
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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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.
