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.
Staged
$4.99
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.
Your first Build Kit is free with a verified email.
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.
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Original App Store material. Ratings and screenshots describe the existing app, not proof of demand for your version.
Staged. is an offline TNM cancer staging reference for physicians, residents, and medical students. Select a cancer, tap through the tumor (T), node (N), and metastasis (M) descriptors, and the stage group appears instantly — color-coded by severity. HOW IT WORKS 1. Browse 40 cancer types organized into 11 specialty groups on the home screen 2. Tap a specialty to expand it, then tap a cancer type 3. Select one T descriptor, one N descriptor, and one M descriptor from the plain-language lists 4. The stage group is calculated and displayed immediately 5. Tap "Clear" to restage, or the home icon to pick a different cancer FEATURES • 40 cancer types across 11 specialties • Full T, N, and M descriptor definitions written in plain language — no abbreviation decoding required • Instant stage calculation, color-coded from green (early) to dark red (advanced) • Quick Fill buttons for N0 and M0 to speed up common cases • Selected categories collapse automatically so you scroll less • Pin frequently used cancers to the top of the home screen • Cited sources on every staging screen, plus a full References section with links to the primary literature • Optional one-tap lookup of stage-specific treatment information on OpenEvidence • Works fully offline — no account, no login, no internet required CANCERS COVERED Thoracic: NSCLC, SCLC, thymic/thymoma, pleural mesothelioma Gastrointestinal: esophageal, gastric, colorectal, appendiceal HPB: pancreatic, hepatocellular, cholangiocarcinoma (intrahepatic, perihilar, distal), gallbladder, ampulla of Vater Head & Neck: oral cavity, oropharynx (HPV+ and HPV−), larynx (supraglottic and glottic), nasopharynx, salivary gland Genitourinary: kidney, bladder, prostate, penile Gynecologic: endometrial, cervical, ovarian, vulvar Breast Skin: melanoma, Merkel cell carcinoma Soft tissue: extremity/trunk sarcoma, retroperitoneal sarcoma Endocrine: thyroid, adrenocortical Hematologic: lymphoma, CLL, multiple myeloma STAGING SYSTEMS AND SOURCES Staging criteria follow AJCC 8th Edition, IASLC 9th Edition (lung, thymic, mesothelioma), and current FIGO systems (endometrial 2023, cervical 2018, ovarian 2014, vulvar 2021), plus Lugano, Rai, and R-ISS for hematologic malignancies. Every staging screen displays its source citation, and the in-app References section links to the primary literature for each system. IMPORTANT Staged. is a reference and educational tool. It does not diagnose, does not recommend treatment, and is not a medical device. It performs no patient-specific analysis and stores no patient data. Always verify staging against the primary source and your institutional guidelines before making clinical decisions. Developed by Matthew Stanley, M.D., a board-certified general thoracic surgeon.
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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.
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.
Not assessed in a Build Kit yet.
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.