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.
Solitaire by MobilityWare is the ORIGINAL maker of Solitaire free for iPad and iPhone
Free · In-app purchases
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.
A product spec, screen plans, and build steps for your coding agent.
First kit free with a verified email
Combine features and design from your favorite apps.
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Generating… usually about a minute.
What should your app do differently? Your note travels with the kit so your coding agent builds around your idea.
A product spec, phased build plan, differentiation notes, and screen references.
Illustrative example: an invoice app for independent contractors. Your kit is tailored to the app you choose; this is not its generated content.
Goal: Send a clear invoice after finishing a job.
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.
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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Good fit for mobile-first iOS and Android prototypes with managed app scaffolding.
Rork plan preview for Solitaire: map the core Games workflow, choose the smallest differentiated feature set, define the data and monetization boundaries, then prototype the riskiest user journey first.
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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
Assumption to check: Users find it frustrating when cards don't respond quickly
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: Limited customization options for card designs
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: In-app purchases can be confusing
Validate with people who use this workflow before building.
Original App Store material. Ratings and screenshots describe the existing app, not proof of demand for your version.
Solitaire by MobilityWare is the ORIGINAL maker of Solitaire free for iPad and iPhone. After more than 10 years on the App Store we are STILL improving our card game with fun new features. Make sure to try out our unique Daily Challenges! The addictive game you’ve been playing on your computer for years now goes wherever you do. Whether you know it as Patience, Klondike, or just Solitaire, this popular game is one of the best games around. == How to Play == Tap or drag cards to arrange them in descending order with alternating colors. When you can, move cards up to the foundation to sort all of the suits from Ace to King. You can draw one card at a time for a more relaxing game, or draw three for a challenge to train your brain! == Features == - Daily Challenges: Earn crowns & trophies by solving each day’s new challenge - Levels & Titles: Earn points every time you play to level up and achieve new titles - Winning Deals: Play deals where you know there is at least one winning solution - Stickers: Send cute reaction stickers to your friends through iMessage - Customization: Change your background, card backs and card faces for a personalized experience - Show Me How To Win: Improve your strategy by using the “Show Me How To Win” feature - Leaderboards & Statistics: See how you stack up against other players, or try to beat your own high score - Custom Settings: Play right or left-handed, portrait or landscape, multiple scoring styles, and adjust hands to draw-1 or draw-3 - Unlimited hints and Undos == More Fun Card Games from MobilityWare == MobilityWare makes the best card games on the App Store. Try some of our other games: - Spider Solitaire - Freecell - Pyramid Solitaire - Crown Solitaire - Tripeaks Solitaire - Spider Go Solitaire - Castle Solitaire For answers to frequently asked questions, head over to http://www.mobilityware.com/support.php LIKE US on Facebook http://www.facebook.com/mobilitywaresolitaire For the latest, check out http://www.MobilityWare.com/ Join over 100 million users playing Solitaire for iOS! Our version of Solitaire is free and is one of the the most popular in the App Store! Take on our Daily Challenges for a new Solitaire experience each and every day. Download now to play the best classic Solitaire card game on iOS now! EXCLUSIVE FEATURES WITH SUBSCRIPTION SERVICE - NO Ad interruptions or Banners! - Ability to play future Daily Challenges! - Four Exclusive Themes with Four Gorgeous Card Sets! About Solitaire Subscription Solitaire Subscription is an optional subscription that gives you access to seamless play without any ads, the ability to play future Daily Challenges and exclusive themes. You can subscribe to Solitaire for a term of one month, three months or for one year. New subscribers can choose a one-week trial subscription at no cost. The monthly term costs US$1.99. The three-month term costs US$4.99. The yearly term costs US$14.99. The subscriber's iTunes Account will be charged when the purchase is confirmed. Any unused portion of a free trial period is forfeited when a subscription is purchased. Subscriptions renew automatically unless automatic renewal is turned off at least 24 hours before the end of the current term. Renewal prices are US$1.99 per month, US$4.99 per every three months, or US$14.99 per year. The subscriber's iTunes Account will be charged for a renewal in the last 24 hours of the current period. Purchasers can manage their subscription and turn off automatic renewal in their Account Settings. Subscriptions may be stopped by turning off automatic renewal at least 24 hours before the end of the current period. A subscription cannot be cancelled in the middle of its term. Please see our privacy policy at http://mobilityware.com/privacy-policy.php Please see our Terms of Service at http://mobilityware.com/eula.php
Written user reviews are not shown here. Check current App Store reviews >
Plan a focused first version with your coding agent. These are planning assumptions, not a delivery guarantee.
Choose one audience and one core workflow. Use the kit to agree on its screens, data, and acceptance criteria before building.
Decide which secondary features, integrations, and platform support can wait. Your version does not need to reproduce everything in the original.
Validate external services, specialist technology, data access, and ongoing costs for your chosen scope.
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.