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.
Take control of your health with Symptom Tracker, designed with simplification in mind
$5.99 · 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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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 Symptoms Tracker: map the core Medical 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 symptom tracking options
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: Cluttered interface
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: Inconsistent performance
Validate with people who use this workflow before building.
Hypothesis 4
Assumption to check: Lack of educational resources
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.
Take control of your health with Symptom Tracker, designed with simplification in mind. As soon as you start feeling a symptom or a mood change, use Symptom Tracker to track your symptom event with a single tap on your Apple mobile device (e.g., iPhone, iPad, or Apple Watch). As you enter symptoms over days, weeks, months, and years, you gain insights and can share them with your healthcare providers. Symptom Tracker is designed with the user in mind. You can watch video tutorials that explain how to use Symptom Tracker without having to leave the app. Symptom events recorded on one Apple mobile device will sync and appear on all Apple mobile devices. Features ► All features are available for a one-time fee. NO In-App purchases or subscriptions. ► Captures important health and mood information that can be shared with your healthcare provider ► Add, edit, and remove an unlimited number of symptoms ► Add, remove, print, and email an unlimited number of symptom events ► Symptom events can be either recorded as they occur or be entered later ► Symptom events can be recorded with Siri in iOS 16 ► Recorded symptom event information includes the event date, time, duration, and notes providing for easy analysis and identification of any patterns ► Historical event graph reporting including day, event, and duration metrics ► User-friendly video tutorials embedded for easy instructions on using the app ► Event sharing with your doctor or therapist at your next appointment ► Track events using all Apple mobile devices, including Apple Watch, iPhone, and iPad ► Symptoms and events are synchronized on all Apple mobile devices Benefits • To protect the privacy of your symptom information, symptom data is stored only on your Apple device(s) and not on third party cloud servers. Symptom information is never shared unless you decide to share it • Ability to provide insight and an overall understanding of your daily experience to your healthcare providers Symptom Tracker is designed to save symptoms on the Apple mobile device in which the app is installed and to synchronize the recorded information on devices signed into the owner's Apple iCloud account. Terms of Use bdpcorp.com/license-agreement.shtml
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.