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.
Whether man, woman or child - everyone has headaches sometimes
$3.99 · 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 Headache Diary Pro: 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 complain about lack of detailed statistics and insights.
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: Users find the interface outdated and not user-friendly.
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: No reminders for medication or headache tracking.
Validate with people who use this workflow before building.
Hypothesis 4
Assumption to check: Limited support for tracking triggers.
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.
Whether man, woman or child - everyone has headaches sometimes. The main reason is usually stress which is the cause or feeling tense and not moving enough. Even genetic factors like food intolerances may be the cause of headaches. No matter the cause, an accurate logging of headaches may help to identify possible triggers. With the Headache Diary Pro for your iPhone or iPod Touch you get the most sophisticated mobile app for this purposes. This Headache Diary Pro will help you to track your headache pain, symptoms, triggers, treatments and much more. The more you know about your headaches, the more you will be able to get your pain under control. • Apple: 'New and Noteworthy' of all Apps in Germany/Austria/Suisse! • German Telekom: 'Top App of the month' - August 2011 • Top 1 of Healthcare Category in Germany • Top 3 of Healthcare Category in Austria & Suisse Extensive Logging The Headache Diary Pro includes extensive logging capabilities, like: • Date of your headaches • Type of your headaches • Duration and intensity • Taken medication, amount, did it helped (help)? • Impairment • Symptoms • Midas-Questionaire • and much more... All logs are editable and expandable which enables you to adjust the diary to your needs and your characteristics of your headaches. Multiuser capable Buy once and use it for multiple users. Whether husband, wife or kids - add as many users as you wish and start logging their headaches immediately. Comprehensive Statistics Benefit from the clearly structured and well designed statistics of the Headache Diary Pro. These statistics don´t only look amazing, they can also help you analyze the characteristics of your headaches. All statistics are offline available, easy to understand and optimized for the landscape mode. Turn your device into the landscape mode and you will get all the charts in an attractive flow view. Say goodbye to far too complicated and ugly looking statistics. Export Don't be satisfied with simple text exports! The Headache Diary Pro includes an excellent export function that allows you to print your report or to send it by mail. It will generate an clearly structured PDF that looks on all operating systems equal. All you need is an PDF-Viewer. More features • Stunning and Intuitive Design • Retina-Ready • Unique Overview • Quick-Entry Button • Optimized for Portrait and Landscape Mode • and much more … This app is not intended for self-diagnosis or self-treatment. If symptoms persist, emerge or change the characteristics of headaches, please consult your doctor immediately.
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.