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.
App Overview
IntiMates: Sex Tracker
1
$7.99 · In-app purchases
PRICE
$7.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
★ 5.0
1 ratings · Top 5%
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.
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Build Kit
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A product spec, screen plans, and build steps for your coding agent.
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What's included16 files
A product spec, phased build plan, differentiation notes, and screen references.
- START_HERE
- AGENTS
- EVIDENCE
- SPEC
- BUILD_PLAN
- DIFFERENTIATION
- skills/
- screens/
Preview a sample Build Kit No email needed
Illustrative example: an invoice app for independent contractors. Your kit is tailored to the app you choose; this is not its generated content.
Screen plan
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.
Differentiate and validate
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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Free quick prompt For a smaller starting point
Quick prompt
Good fit for mobile-first iOS and Android prototypes with managed app scaffolding.
// RORK SYSTEM PROMPT
Rork plan preview for IntiMates: Sex 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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Opportunities
AI-GENERATED OPPORTUNITY HYPOTHESES
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
Implement more comprehensive analysis features with visual charts.
Assumption to check: Lack of detailed insights and analytics
Validate with people who use this workflow before building.
Hypothesis 2
Allow users to customize log types and add personal notes.
Assumption to check: Limited customization options for logging
Validate with people who use this workflow before building.
Hypothesis 3
Provide clear information on subscription benefits and a free trial.
Assumption to check: Subscription model can be unclear
Validate with people who use this workflow before building.
Hypothesis 4
Introduce reminders for logging encounters and insights.
Assumption to check: No reminders or notifications
Validate with people who use this workflow before building.
App evidence
Original App Store material. Ratings and screenshots describe the existing app, not proof of demand for your version.
App Store description
1. App Description: Core Summary IntiMates: Your Intimacy Journal for Growth IntiMates is a private journal designed for couples and individuals to record every intimate moment and gain deeper insights through data. Here, every beat of your heart and every subtle detail is worth cherishing and analyzing. We believe that a deeper understanding of your intimate life can lead to stronger, more joyful relationships. 2. App Description: Key Features 【Key Features】 1. Private and Precise Activity Logging: Start a timer with a single tap to effortlessly record the duration of each intimate activity. Log all the details you care about, including positions, locations, foreplay content, and protection measures. Supports single, two-person, and group modes to fully capture every experience. 2. Partner Profiles, Personalized Connections: Create dedicated profiles for each partner, recording their nicknames, birthdays, and individual preferences. Discover and save each other's favorites to add new excitement and understanding to your intimate moments. 3. Smart Data Insights, Uncover Your Rhythm: Powerful charts and graphs visualize your activity frequency, duration, and satisfaction trends over time. Compare experiences with different partners to find patterns and grow together. 4. Menstrual Cycle & Safe Period Tracking: Designed for female users and partners, easily track menstrual dates and get smart predictions for periods and fertile windows. Helps you and your partner plan your intimate time with confidence and peace of mind. 5. Ultimate Privacy, Total Security: All your data is stored exclusively and securely on your device, ensuring complete privacy. Supports Face ID / Touch ID for password protection, so only you can access your private records. Encrypted iCloud backup is available, guaranteeing your data is safe and never lost. 3. App Description: Unique Selling Points 【Why IntiMates?】 - Effortless Logging, Zero Hassle: We understand that after an intimate moment, logging should be simple. Our features are designed for quick and easy entries, taking less than a minute. - Beyond a Diary, Deeper Insights: IntiMates is more than just a journal. It's an intelligent assistant that helps you discover unspoken details from your data, fostering a stronger connection with your partner. - For Every Relationship: Whether it's a sweet duo or a complex group, our app is built to flexibly adapt and accurately record every dynamic. 4. App Description: Privacy Statement 【Privacy Policy】 Your privacy is our top priority. IntiMates guarantees that all of your data is stored in an encrypted format on your device. We do not upload your data to any servers and we have no access to your personal information.
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Screenshots
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Build scope
Plan a focused first version with your coding agent. These are planning assumptions, not a delivery guarantee.
Define the first version
Choose one audience and one core workflow. Use the kit to agree on its screens, data, and acceptance criteria before building.
Set boundaries
Decide which secondary features, integrations, and platform support can wait. Your version does not need to reproduce everything in the original.
Check the hard parts
Validate external services, specialist technology, data access, and ongoing costs for your chosen scope.
SUGGESTED BUILD STACK
React Native
Expo
Victory Native
React Navigation
React Native Paper
Expo Local Authentication
BUILD KIT DIFFICULTY
Intermediate
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.
