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
Kalo - AI Calorie Tracking
Track meals in seconds with AI
Free · In-app purchases
PRICE
Free
In-app purchases
BUSINESS MODEL
Freemium
No overall Grossing estimate available
RATING
★ 4.8
2,556 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 included17 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 Kalo - AI Calorie Tracking: 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
Incorporate a barcode scanner for easier food entry.
Assumption to check: Users struggle with accurately logging food items.
Validate with people who use this workflow before building.
Hypothesis 2
Integrate a community-sourced food database option.
Assumption to check: Limited food database leads to missing entries.
Validate with people who use this workflow before building.
Hypothesis 3
Provide clearer explanations on premium features and benefits.
Assumption to check: Subscription model can be confusing.
Validate with people who use this workflow before building.
Hypothesis 4
Enhance the progress tracking screen with more visualizations and insights.
Assumption to check: Users find it hard to track their progress visually.
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
Track meals in seconds with AI. Lose weight without giving up the foods you love. Kalo makes calorie tracking simple and effortless. Whether you're 18, 35 or 55+, starting out or starting again, or juggling work, kids or life, Kalo can help you stay consistent and reach your goals. Snap a photo, scan a barcode, speak your meal, or search manually. Kalo instantly shows calories, macros and nutrition so you always know where you stand. WHY PEOPLE LOVE KALO: Instant meal logging Snap, scan or speak your meal. Logging takes seconds, not minutes. Automatic calories & macros Get instant calories, protein, carbs, fats, sugar and more, no guesswork. Weight loss made simple Enjoy the foods you love while staying on track. Stay motivated with others Join challenges, build streaks and stay consistent with friends or groups. Effortless progress tracking See daily totals, weekly averages and your personalised Health Score. Fits every lifestyle Great for weight loss, maintenance, macro tracking, high-protein diets, and busy schedules. KALO UNLIMITED Unlock AI photo scanning, detailed nutrition, community tools and full progress tracking. Subscription auto-renews unless cancelled. IMPORTANT INFORMATION Kalo supports general wellness and nutrition awareness. It does not provide medical or nutritional advice. Always consult a healthcare professional before making changes to your diet or exercise routine
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
Zustand
axios
expo-graph
@react-navigation/native
BUILD KIT DIFFICULTY
Advanced
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.
