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.
The health and fitness app for the rest of us.
$4.99
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.
Queued for a daily kit update.
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 Peelr Fitness: 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.
The health and fitness app for the rest of us. Peelr is for people who don't live at the gym and couldn't point to half the muscles on a workout diagram if you paid them. Just people trying to eat a little better, move a little more, and not make it their whole personality. One app instead of four. Everything lives in one place, so keeping track of your health doesn't turn into its own second job. No more bouncing between a calorie counter, a workout app, a fasting timer, and a pill reminder that all act like the others don't exist. Weight that tells you the truth, gently. Weigh in as often as you want. A 7-day average smooths out the noise, so one salty dinner doesn't wreck your trend line, and your goal date comes from your actual data instead of wishful thinking. Nutrition without the friction. Log food by search, by barcode, or by just typing what you ate in plain English and letting Peelr estimate it. Calories, carbs, fat, protein, fiber, water. No food scale required. Searches are grounded in USDA's reference database, and Peelr tells you when a number is an estimate rather than a verified match. Workouts built to fit your life, not the other way around. Your program is a queue of workouts you move through at your own pace, not a calendar that keeps score. Nothing is ever locked. Missing a week doesn't put you behind. A skipped workout comes back around instead of disappearing. Traveling, or the gym's busy, or you've got nothing but a chair? Swap any workout for one that fits what you actually have today. More than 1,300 exercises with animated demos, filters by muscle and equipment, and a manual builder for when you'd rather pick yourself. Health beyond the basics. A fasting timer with history. Supplements and medications with reminders. A blood pressure log with an AHA-categorized trend. Plus a weekly insight that connects the dots, so you don't have to become a data analyst about your own body. Started, stopped, starting again? That's the normal case, not the failure case. Come back after two weeks away and Peelr picks up where you left off. No guilt screen, no "you missed 14 days," no streak to rebuild from zero. Your data is yours. Your weight, meals, workouts and health entries stay on your device. No account system, no tracking, no ads, no analytics, no server-side database. The only time anything leaves your phone is when you ask the AI assistant for a recipe, a workout program or your weekly insight, and then it sends only the minimal, anonymized numbers needed for that one answer. Never your name, never your full history. Export everything as JSON whenever you want. Apple Health, both ways. Syncs weight, nutrition, workouts, blood pressure and water with the Health app, and reads sleep, body composition and blood pressure from your connected devices. Not medical advice. Peelr is a habit-tracking tool. Talk to your healthcare provider before starting a new exercise program or making medical decisions.
Written user reviews are not shown here. Check current App Store reviews >
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 hard to track multiple fitness metrics in one place.
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: Many fitness apps lack community features for motivation.
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: User retention can be low due to lack of personalized goals.
Validate with people who use this workflow before building.
Hypothesis 4
Assumption to check: Complex navigation can frustrate users.
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.
Not assessed in a Build Kit yet.
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.