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.
Most men don’t realise it, but after age 30, testosterone levels begin to decline — slowly, silently, and often with noticeable effects
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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 Mojo: Testosterone Tracker: 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 often find tracking and logging tedious.
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: Limited insights into testosterone trends.
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: Lack of community support.
Validate with people who use this workflow before building.
Hypothesis 4
Assumption to check: Subscription models can be confusing.
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.
Most men don’t realise it, but after age 30, testosterone levels begin to decline — slowly, silently, and often with noticeable effects. You might feel more tired than usual, lose motivation to train, struggle with sleep, or find your mood dipping for no obvious reason. These changes can be subtle at first, but over time, they add up. Mojo helps you spot the patterns, take control, and feel like yourself again. It’s not about gimmicks or shortcuts — it’s about understanding how your daily habits affect your hormones, energy, and overall vitality. Track the habits that matter Mojo gives you fast, frictionless daily check-ins for the key lifestyle factors that impact male hormones — including sleep, stress, libido, energy, training, alcohol, supplements, and more. The process takes less than 60 seconds a day and helps you stay consistent without overthinking it. Every data point you enter is stored locally on your device. There’s no account to create, and no personal information ever leaves your phone. Your health is your business — we keep it that way. Understand how your habits affect your health Mojo doesn’t just collect data — it helps you learn from it. Your inputs are analysed and distilled into a daily vitality score, so you can get a simple, high-level view of how you’re doing. Over time, Mojo surfaces meaningful correlations between your lifestyle and your score — helping you identify what’s helping or hurting your recovery, drive, and energy. You’ll start to see things like: • How late-night alcohol impacts your mood the next day • Whether consistent sleep boosts your libido • How training too hard without recovery tanks your energy Mojo turns gut feelings into clear, measurable insights — so you can make smarter choices without the guesswork. Built for consistency and momentum Improving your hormones and performance is all about consistency. Mojo helps you stay on track with streak tracking, weekly summaries, and motivational nudges based on your real data. It’s not just about logging — it’s about building habits that compound over time. You’ll see how your average vitality is trending week to week, and get rewarded for showing up — even on days where you’re not at your best. Powered by science, not fluff Forget the noise. Mojo gives you concise, referenced articles that explain the science behind how lifestyle factors like sleep, diet, stress, and exercise affect testosterone. No clickbait, no bro-science — just clear, actionable information grounded in peer-reviewed studies. You’ll also get bite-sized daily tips that help you improve over time — small tweaks that can make a real difference when applied consistently. Apple Health integration Mojo can optionally sync with Apple Health to pull in data like your sleep, workouts, and step count — helping you stay accurate without logging everything manually. You remain in full control of what’s shared. We don’t store or sell your health data — ever. Who it’s for Mojo is designed for men who want to: • Boost their energy, focus, and mood • Improve sleep, libido, and motivation • Understand how daily habits impact hormone health • Build sustainable routines for long-term performance • Take control of their wellbeing — naturally, without prescriptions If you’re starting to feel the slow drop in vitality, Mojo helps you reconnect the dots, rebuild your baseline, and optimise your health from the ground up. Disclaimer: Mojo is intended for informational and educational purposes only and does not provide medical advice, diagnosis, or treatment. The app is not a substitute for professional healthcare. Always consult a qualified medical professional before making changes to your health, lifestyle, or supplement routine.
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.