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.
Stop overthinking
$4.99 · 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 Just Workout: 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: Lack of user engagement features.
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: Limited workout templates.
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: No integration with health data.
Validate with people who use this workflow before building.
Hypothesis 4
Assumption to check: Subscription management is unclear.
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.
Stop overthinking. Start working out. You already know how to work out. You've got the form down. You know your body. What you don't want is to spend 20 minutes figuring out what to do today. You just want to get it done. That's why we built Just Workout. It's for people with a workout foundation who want to take the thinking out of it—not learn the basics. No tutorials on how to squat. No form videos. Just a randomized routine that hits everything, so you can stop planning and start lifting. Here at AIAH, we believe variety is everything. Your body adapts to repetition. Do the same workout three times in a row, and your muscles figure it out. They stop growing. You stop caring. So we made every workout random. No two workouts are ever the same. Your body stays confused, which is good. You stay engaged, which is better. Remember when you bought software and it was actually yours? We do. That's why this is a one-time purchase. No monthly fees. No annual subscriptions. No premium tiers. Buy it once, it's yours. We know, revolutionary concept. We're not here to make you famous. We're not building a social network. There are no feeds to scroll, no leaderboards to check, no workout selfies to post. When you're working out, you're working out. That's it. Your phone, your weights, and a timer. Nothing else. The whole thing is stupid simple. Open the app. Tap generate. Swipe through exercises like you're scrolling TikTok. Track your progress. Done. If you can use your phone, you can use this. Actually, it's probably easier. What you're getting: TikTok-style swipe interface. Swipe up, next exercise. Swipe up again, next set. It's weirdly addictive in the best way. Smart randomization. Every workout hits everything. Chest, back, legs, arms, core. Balanced. Every single time. Automatic tracking. Timers run themselves. Volume calculates itself. You just lift. We handle the math. Progress that actually matters. See your personal bests. Track your volume over time. Watch your streak grow. No fluff, just numbers. Equipment filtering. Got dumbbells? Cool. Just bodyweight? Also cool. Tell us what you have, we'll work with it. Offline everything. No internet? Doesn't matter. Everything works offline. Your data stays on your phone. Private. Secure. Actually yours. Who should use this? People who already have a workout foundation and just want to take the thinking out of it. You know the exercises. You know the form. You just don't want to plan. If that's you—you'll love this. Also: people tired of monthly subscriptions, people who want simplicity, people who want results, not followers. Who shouldn't use this? Beginners who need form guidance or step-by-step instruction. We assume you know how to lift. People who want a personal trainer in their pocket. We're not that. People who want to post workout selfies. We don't do that. People who want ten thousand exercises to choose from. We keep it focused. The bottom line: Just Workout is for people who already know how to work out. It removes the planning, not the need for a foundation. No form tutorials. No hand-holding. No subscriptions. No bullshit. Just the simplest way to get your workout done. Just workout.
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.