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.
Improve your 5K pace and burn calories
$2.99 · 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 Pacer 5K: run faster races: 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 find it hard to track their progress and achievements.
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: Some workouts can feel repetitive over time.
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: Limited social features for sharing progress.
Validate with people who use this workflow before building.
Hypothesis 4
Assumption to check: Lack of personalized feedback during workouts.
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.
Improve your 5K pace and burn calories. This Is an 8 week program that combines running and speed intervals. Its your own personal coach to a faster pace. ===== THIS APP IS FOR 5K RUNNERS ===== IMPORTANT: To enjoy this app you must already be able to run 5K. IN THE NEWS Our 5K / 10K Runner apps have been featured on CNN, Fox, USA Today, Times, Fitness Channel, AppAdvice, AppCraver, Best10Apps, Appolicious, AppOfTheDay, Apple's "New & Noteworthy" MakeUseOf, the iPhone App Review, Remix Your Health, AppShopper, Daily Motion, and so many others… 5K Pacer is an 8 week running program that incorporates intervals of running, walking, and faster running into your routine. It works on your speed with an awesome walk - run - fast run routine that gradually builds your stamina & strength. Doing this program 3 times a week will steadily improve your fitness level and it also makes running a LOT more interesting and fun. On the 8th week you will run a faster 5K. The best part - you will have fun getting there :-) THE PROGRAM ● 8 week program / 3 times a week ● Interval runs: walk / run / run-faster ● Each run is different and unique ● Gradually and safely improves your pace ● Makes running a LOT more interesting ● Use this program forever, and keep getting faster GPS & APPLE HEALTH ● Built in GPS & Distance Tracking, also when app is in background ● Integrated with Apple Health for Calorie calculation & saving workouts NOTE: Continued use of GPS running in the background can dramatically decrease battery life. COACHING ● Audio coach tells you when to walk / run / faster ● Starts slow & gradually speeds up ● Easy & simple, nothing to learn MUSIC ● Listen to your music while running ● Audio coach gently blends in when needed ● Works with all music apps MOTIVATION ● Earn wins and badges ● Share your wins on Facebook, Twitter, mail ● Meet trainees on our facebook community ● Motivational quotes for your mind & body GREAT WITH OTHER APPS ● Compatible with all running GPS apps ● Nike+, RunKeeper, MapMyRun and ALL others SUCCESS ● Only 30 mins a day, 3 days a week, 8 weeks ● Designed to make any runner succeed ● Answers to all common questions AND THERE'S MORE ● works outdoors / indoors / treadmill ● works perfectly even if your device is locked ● works perfectly also in background ● stretching & warmup videos ● male & female audio coaches ● flips upside down to fit any armband ● and there is more... Built for: ● iPhone & iPod touch ● iPad - awesome on a treadmill NEWS REVIEWS Our 5K / 10K runner apps have been featured on CNN, Fox, USA Today, Times, Fitness Channel, AppAdvice, AppCraver, Best10Apps, Appolicious, AppOfTheDay, Apple's "New & Noteworthy" MakeUseOf, the iPhone App Review, Remix Your Health, AppShopper, Daily Motion, and so many others… "If you thought that you could never run - get ready for a BIG surprise. With this app - you will run" "Its a great App, I was hooked by the second run, and it kept me running" "If you want to start running and to keep running - this app will do it for you" "One of the best iPhone running apps I’ve tested." "This application is a must-have fitness trainer for anyone trying to catch the running bug or getting ready for a major running event" "This exercise tracking app will help you achieve that coveted 5K distance" ● Privacy Policy: http://www.fitness22.com/privacy-policy ● Terms of use: http://fitness22content.com/Components/WebPages/TermsOfUse/TermsOfUse.html ----- CONTACT US ----- Dear customers, we are here for you! [email protected]
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.