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 Description
$2.99 · 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 3D Eyesight Recovery: map the core Lifestyle 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: Limited exercise variety for users.
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: Lack of social sharing features.
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: No reminders or notifications for exercises.
Validate with people who use this workflow before building.
Hypothesis 4
Assumption to check: Insufficient user engagement metrics.
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.
■ App Description This app uses stereograms to help improve eyesight. This application is the 2nd phase of "3D Sight Recover" which made a smashing success. There are two functions that affect eyesight—eye muscle function and brain function. Eye muscle function controls what we generally call eyesight, and it is the ability of our eyes to focus on what we see. The brain function that affects eyesight is the ability of our brain to recognize and visualize what we see physically. In order to improve eyesight, you need to not only strengthen the eye muscles, but also increase the ability of your brain to perceive visual images. In 3D Eyesight Recovery, by looking at a 3D stereogram, - you can strengthen brain functions by focusing the eyes on a 3D image, - at the same time you can use eye muscles that you normally do not use, - and by switching from the walleyed method to the cross-eyed method, to opposite ways of seeing, you exercise the eyes. - Additionally, the stereograms make it fun to continue exercising the eyes. In other words, using the app in this way will give you the four benefits above at the same time. You will have fun while providing your eyes with good exercise. ■ Instructions for Use Look at the stereogram using the walleyed method and the cross-eyed method, one after the other. Use this app regularly on a daily basis. ■ Walleyed Method (diverge) Instead of looking at the picture, focus on a point further ahead of the picture. If you continue to look far ahead, the two eyes you see in the upper part of the picture will look like four eyes, and then the two eyes on the inside will start to move closer together until they become one. If you move your line of vision to the picture, the flat picture will look three-dimensional. If this is your first time using a 3D stereogram, you may be surprised when this happens. It will be difficult at first, but once you get used to it, it will be easier, so do not give up. ■ Cross-eyed Method (converge) In this method, you look at the left side of the picture with your right eye and the right side with your left eye. Unlike the walleyed method, you adjust the focus to a point closer to you than the picture. Place a finger between your eyes and the picture and look at your finger. The picture is behind the finger so your eyes will naturally see the opposite side of the picture, so maintain that line of vision and remove your finger. It requires some practice, but as you gradually adjust your focus, the picture will begin to appear three-dimensional. Looking at 3D stereograms is exercise, so your eyes will get tired. Please refrain from using this app for extended periods of time so as not to tire your eyes.
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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.