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.
You do push-ups
$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 PushFit 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: Limited exercise variety compared to competitors.
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: Lack of social features or community support.
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: Basic progress tracking functionality.
Validate with people who use this workflow before building.
Hypothesis 4
Assumption to check: No integration with wearable devices.
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.
You do push-ups. PushFit counts. Place your iPhone on the ground beneath you and start pushing. The front camera tracks your face and counts every rep automatically. It even measures how deep each one goes. No tapping, no equipment, no excuses. Work out at home or anywhere. Join 475,000+ people building strength one push-up at a time. One purchase. No subscription, no ads, ever. APP FEATURES ▶ Automatic rep counting with the front camera: face tracking measures your distance from the phone, so only real reps count ▶ The Lockout: choose the apps that steal your time and they stay locked until you do your push-ups. PushFit never learns which apps you chose ▶ Streaks that survive rest days: training banks recovery, so a Monday, Wednesday, Friday routine keeps its streak with nothing to schedule ▶ Apple Watch app that counts reps from your wrist, no iPhone needed, with a haptic tick every rep, heart-rate zones, a voice coach and five complications ▶ Live Activity with reps, sets, rest countdown, and heart rate on your Lock Screen and in the Dynamic Island ▶ Home Screen and Lock Screen widgets, including a one-tap button that logs ten push-ups without opening the app ▶ "Hey Siri, start my push-ups" to start, log, and check your count hands-free, no setup required ▶ Compete with friends and family on daily, weekly, monthly, yearly and all-time leaderboards, with friends added by a link you send ▶ Charts drawn from every single rep: your climb over time, the depth of each rep, and your heart rate through the workout ▶ A calendar of every day you trained, with the depth, consistency, stamina and rest behind each one ▶ Share a workout as a five-second video, made for Stories and Reels ▶ Records workouts in Apple Health with heart rate and calories ▶ Daily, weekly, monthly and yearly goals, drawn as rings or bars, set straight from the home screen ▶ Your music keeps playing, with the controls right on the workout screen ▶ Lifetime record of push-ups, sets and personal bests ▶ Workout reminders to keep the habit going ▶ Customizable themes with matching app icons, your own display name, plus your favorite photo for motivation ▶ Built for everyone: VoiceOver rep announcements and audio graphs for every chart THE CAMERA NEVER RECORDS Face tracking measures one thing: how far your face is from the screen. No photo or video is ever saved, and no face data ever leaves your iPhone. THE PERFECT EXERCISE The push-up is simple, functional, and scales to any fitness level. Perfect whether you're chasing your first push-up or your hundredth. PushFit Pro slots into any routine. Push-ups target: ▶ Chest (pectorals) ▶ Shoulders (deltoids) ▶ Arms (triceps) ▶ Core (abdominals and serratus anterior) Why push-ups? ▶ Burn calories ▶ Improve cardiovascular health ▶ Strengthen the shoulder joint ▶ A real workout with zero equipment
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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.