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.
The Sandtray is a tried and true process used by many Play Therapists with clients of any age
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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 Virtual Sandtray: map the core Business 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 customization options for users
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: Difficult to navigate the gallery with many saved scenes
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: High price point may deter users
Validate with people who use this workflow before building.
Hypothesis 4
Assumption to check: Lack of social sharing features
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.
The Sandtray is a tried and true process used by many Play Therapists with clients of any age. The Sandtray process is ‘elementally therapeutic by promoting play and relationship’ (Homeyer and Sweeney, 2011). However, difficulties of the traditional office Sandtray set up can include cost, portability, storage and display of the tray, sand and miniatures. The Virtual Sandtray App is a revolutionary tool for therapists to utilize in multiple settings where these concerns prohibit traditional Sandtray use. With the Virtual Sandtray App, a qualified therapist can work with clients in settings such as hospitals, crisis intervention sites, practicum and internship sites. Basically, any settings where traveling with traditional Sandtray setup is cumbersome or impossible. In addition, the virtual elements allow for the expansion and use of items and concepts which are impractical in traditional Sandtray. These elements include saving of environments for later use, screenshots of environments, backgrounds, rotation of the tray, weather elements, fire, limited animation and resizing items. Expansion packs can be purchased in addition to the basic sandtray pack and a fabulous collection can travel with the therapist anywhere.
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.