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.
SETTINGS & FEATURES
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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 Progressive Muscle Relaxation.: 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: Limited session variety and customization options
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: Lack of social sharing features
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: No reminders or scheduling for sessions
Validate with people who use this workflow before building.
Hypothesis 4
Assumption to check: Subscription model may deter users
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.
SETTINGS & FEATURES • This app includes all exercise forms of PMR. • select BEGINNER, ADVANCED or EXPERIENCED mode • select to practice lying down or sitting • adjust volume of voice, music & nature sounds • set duration for tension (3-10 sec) • set pause lengths for relaxation (10-40 sec) • with / without Intro / Outro • the total runtime is displayed after each selection • set timer to continue music / nature sounds • 5 music tracks & 17 nature sounds • combine 2 nature sounds simultaneously ABOUT PMR & CONTENT OF THE APP Edward Jacobson's Progressive Muscle Relaxation (PMR) - also called Deep Muscle Relaxation (DMR) - is a scientifically recognized relaxation method that helps to get into a state of deep relaxation through muscle tension and relaxation. PMR is a - scientifically proven - very effective relaxation method. It is recommended by doctors and therapists for many symptoms that are mostly stress-related, such as: • tensions • migraine or headache • inner unrest • sleep disorders • back pain / pain • states of excitement, • anxiety and panic attacks • high blood pressure • psychosomatic complaints • burnout • stress and much more With regular practice it is getting easier and easier to get into deeper relaxation states. If you have enough practice with the long form of PMR (Basic Form: 17 Muscle Groups), you can switch to the Short Forms with 7 and 4 Muscle Groups and finally to the mental form: Body Scan. Then you can relax your body just mentally. ALL COMMON 4 FORMS OF PMR • Basic Form (17 muscle groups) • Short Form I (7 muscle groups) • Short Form II (4 muscle groups) • Mental Form (Body Scan) for BEGINNER, ADVANCED and EXPERIENCED are taught and practiced in this app. This provides a total of 12 complete versions of the PMR. BASIC FORM: 17 MUSCLE GROUPS 1. Right hand and forearm 2. Right upper arm 3. Left hand and forearm 4. Left upper arm 5. Forehead 6. Upper cheek part and nose 7. Lower cheek part and jaw 8. Neck 9. Chest, shoulders and upper back 10. Abdominal 11. Buttocks and pelvic floor 12. Right thigh 13. Right lower leg 14. Right foot 15, 16, 17 (-> left side) SHORT FORM I: 7 MUSCLE GROUPS 1. Right hand, forearm, and upper arm 2. Left hand, forearm and upper arm 3. Forehead, cheek part, nose and jaw 4. Neck 5. Chest, shoulders, back, abdominal, buttocks and pelvic floor 6. Right thigh, lower leg and foot 7. Left thigh, lower leg, and foot SHORT FORM II: 4 MUSCLE GROUPS 1. Both hands, forearms and upper arms 2. Face and neck 3. Chest, shoulders, back, abdominal, buttocks and pelvic floor 4. Both thighs, lower legs and feet MENTAL FORM: BODY SCAN Guided relaxation through the whole body, starting from the face to the feet. This guide is the last stage of the PMR, in which the perception is directed to individual parts of the body without tensing them. The relaxation is now only mental. Soothing imaginations will help you. MUSIC & NATURE SOUNDS You can choose between 5 relaxing music tracks and 17 nature sounds. The volume levels can be adjusted individually. If desired, music and sounds can also be used alone (without voice) to relax or fall asleep. OUTRO: FOR SLEEPING / WITH RETURN At the end of the exercises, there is an Outro for falling asleep or with return, which can also be omitted. DURATION OF TENSION & PAUSES FOR RELAXATION Select your preferred duration for tension and relaxation between the muscle groups. TIMER FUNCTION After the end of the exercise an unlimited time for the music and nature sounds can be set so to deepen your relaxation. NOTE This app can and should be used offline (flight mode).
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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.