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
Eatlytics
Logging meals shouldn't feel like data entry.
$2.99 · In-app purchases
PRICE
$2.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
N/A
No ratings yet
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 included17 files
A product spec, phased build plan, differentiation notes, and screen references.
- START_HERE
- AGENTS
- EVIDENCE
- SPEC
- BUILD_PLAN
- DIFFERENTIATION
- skills/
- screens/
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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 Eatlytics: 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 a voice input feature to log meals quickly.
Assumption to check: Users often find meal logging tedious and time-consuming.
Validate with people who use this workflow before building.
Hypothesis 2
Integrate a comprehensive food database API for easier food search.
Assumption to check: Limited food database can frustrate users.
Validate with people who use this workflow before building.
Hypothesis 3
Add community challenges and social sharing options.
Assumption to check: Lack of social features makes tracking less engaging.
Validate with people who use this workflow before building.
Hypothesis 4
Ensure seamless syncing and a responsive design across all platforms.
Assumption to check: Inconsistent user experience across devices.
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
Logging meals shouldn't feel like data entry. Eatlytics turns a photo, a quick voice note, or a typed sentence into an instant macro estimate — calories, protein, carbs, and fat — that you review and save in seconds. Three ways to log, all powered by AI - Snap a photo of your plate - Dictate what you ate, hands-free - Or just type a sentence Eatlytics reads it, estimates the macros, and lets you adjust before saving. You stay in control of every number. Insights that actually mean something Beyond a daily total, Eatlytics rolls up your intake across days and weeks and surfaces the patterns worth noticing — so you can see what's working instead of guessing. Built to be fast • One-tap favorites for meals you eat often • A clean Today view with calories and macros at a glance • Quick voice logging from anywhere in the app Whether you're tracking protein, watching calories, or just trying to understand your eating, Eatlytics makes the logging effortless and the insights clear. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://api.eatlytics.app/privacy
Written user reviews are not shown here. Check current App Store reviews >
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
Redux
React Navigation
Axios
Firebase
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.
