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.
Are you like one of the millions of people who have Chronic Fatigue Syndrome (CFS)? How can CFS Diary help? CFS Diary was designed to track information about your CFS with a few screen taps
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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 Chronic Fatigue Diary 3: map the core Health & Fitness 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 often find it difficult to track and visualize their symptoms over time.
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: Lack of reminders for entries leads to missed logging.
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: No social features make it feel isolating.
Validate with people who use this workflow before building.
Hypothesis 4
Assumption to check: Limited integration with health data sources.
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.
Are you like one of the millions of people who have Chronic Fatigue Syndrome (CFS)? How can CFS Diary help? CFS Diary was designed to track information about your CFS with a few screen taps. Using this information, the application will allow you to use triggers, like day of month and week, weather patterns, diet, sleep patterns, to predict and manage your CFS. CFS has a new “Trending and Forecasting” module that shows you which factors and triggers contribute to your fatigue and symptoms. This will help you feel better and will allow you to take control of your CFS. CFS Diary makes it easy to perform tasks like tracking your treatment progress, graphing your patterns, emailing reports, including graphical attachments to your doctor and advisors. CFS Diary will also allow you to export your data to a spread sheet all with just a few screen taps. Do you want all of your CFS health records and information at your fingertips so that you can start feeling better. Chronic Fatigue Syndrome Diary can help. - Enter, document, and track as much or as little information as you want with a few screen taps. - Document and Track your Chronic Fatigue Syndrome pain and symptoms, including IBS symptoms. - Track your triggers, including food, stress, location, activity, weather patterns, and sleep patterns. - Keep Track of which treatments really help and those that do not with the Symptom Management analysis report. - Keep track of your health records including hospital or doctor visits, surgeries and procedures, laboratory tests and results, procedures, vital statistics, and the mental and physical symptoms you are experiencing. - Record your thoughts and notes. - Keep track of your appointments, doctor visits, your test results, surgeries and procedures. - Record all your therapy details, including medications and side-effects - Track multiple doctors and laboratories - Graph your patterns of experiences, email reports, including graphical attachments to your doctor so that they can help you adjust - Customize many features; export your data to a spread sheet for offline backup and all with just a few screen taps - Find out which factors and triggers contribute to your symptoms. Please don’t give up until you can manage your Chronic Fatigue Syndrome better. Keep all your CFS medical records and information at your fingertips with this easy-to-use journal. Makes it easy to feel better, be happy, organized and stress-free!
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.