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.
Meet Lively Cycle, the premier app for aligning with your cycle to enhance every day
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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 Lively - Period Tracker, Cycle: 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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Original App Store material. Ratings and screenshots describe the existing app, not proof of demand for your version.
Meet Lively Cycle, the premier app for aligning with your cycle to enhance every day. Personalised daily tips are tailored to your menstrual phase and hormone levels, empowering you to navigate each day with confidence and ease. Lively® Cycle app offers guidance on nutrition, sports, and self-care, ensuring you feel supported and nurtured throughout your entire cycle. Unlike men, who function on a 24-hour cycle, women experience a unique 28-day cycle that influences their mood, energy, and well-being. Enjoy Lively with your partner using the "Partner Syncing" feature. Share cycle phases and moods in a private setting to deepen your connection. This unique app experience keeps you in tune with each other’s needs, enhancing understanding and closeness. Your menstrual cycle has four phases, and we've got your back through them all: MENSTRUAL: Time to shed the uterine lining and start anew! Focus on rest, self-care, and light exercise. FOLLICULAR: Feel the energy and creativity boost! Let's set goals, plan, and enjoy nourishing foods. OVULATORY: Embrace your peak fertility and energy. This is the perfect time for socializing, working out, and maintaining a balanced diet. Lively also supports your Pregnancy and Postpartum journey. As your body changes, Lively provides expert-backed insights on nutrition, movement, and self-care tailored to each stage of pregnancy and postpartum recovery. Stay informed about your baby’s growth, track key milestones, and receive gentle reminders to support your well-being. With Partner Syncing, your partner can also access guidance on how to be there for you, making this journey smoother for both of you. LUTEAL: Time to unwind and reflect. Indulge in nurturing activities and satisfy cravings with healthy alternatives. Perimenopause, Menopause Tracker - Discover patterns over time, and better understand what may be happening in your body. When periods are no longer the center of your health journey, Lively continues to support you. What sets Lively apart is not just its comprehensive cycle tracking but also its inclusion of a unique aesthetic period tracker and an ovulation tracker, designed with elegance and sophistication. Lively ensures your health data stays in sync with Apple Health, allowing for an integrated approach to managing your well-being. With Livelyby your side, you'll stay in sync with your body's natural rhythm, optimizing your well-being, energy, and mood. We'll help you make the most of your 28-day cycle and enhance your daily life. From nourishing your body with the right foods to finding the best exercise routines and practicing self-care, Lively has you covered. Ready to start your journey? Join the Lively® community today and let's begin syncing your cycle to transform your everyday life! Join community: IG: @livelycycle Terms and conditions: https://livelycycle.com/terms-conditions/ Privacy policy: https://livelycycle.com/privacy/ Subscription pricing and terms: Payment will be charged to the credit card connected to your iTunes Account when you confirm the initial subscription purchase. Subscriptions automatically renew unless auto-renew is turned off at least 24-hours before the end of the current subscription period. Your account will be charged for renewal within 24-hours prior to the end of the current period, and the cost of the renewal will be identified. You may manage your subscription and auto-renewal may be turned off by going to your Account Settings after the purchase. If we receive a refund request for an in-app purchase, we may provide Apple with information about the user's in-app purchase activity. This could include details such as time since app installation, total app usage time, an anonymous account identifier, whether the in-app purchase was fully consumed, whether it included a trial period, the total amount spent, and the total amount refunded."
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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: Lack of community support
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: Insufficient data visualization
Validate with people who use this workflow before building.
Hypothesis 4
Assumption to check: Complex subscription model
Validate with people who use this workflow before building.
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.