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
Tracer - inspect https traffic
Ever wonder what your apps are actually doing?
Free
PRICE
Free
No in-app purchases
BUSINESS MODEL
Free
No overall Grossing estimate available
RATING
★ 4.0
1 ratings · Top 30%
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.
Build your own version
Build Kit
Make this idea yours
A product spec, screen plans, and build steps for your coding agent.
First kit free with a verified email
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Combine features and design from your favorite apps.
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What should your app do differently? Your note travels with the kit so your coding agent builds around your idea.
What's included15 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 Tracer - inspect https traffic: map the core Developer Tools 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 advanced filtering options and detailed packet analysis.
Assumption to check: Limited functionality for deep packet inspection
Validate with people who use this workflow before building.
Hypothesis 2
Add loading animations and status updates for user actions.
Assumption to check: Poor user feedback during inspection
Validate with people who use this workflow before building.
Hypothesis 3
Enable users to export logs in various formats (e.g., CSV, JSON).
Assumption to check: No export options for traffic logs
Validate with people who use this workflow before building.
Hypothesis 4
Enhance UI/UX with more modern design patterns and better navigation.
Assumption to check: Basic interface design
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
Ever wonder what your apps are actually doing? Tracer lets you watch every network request your iPhone makes in real time. See where your data goes, who’s receiving it, and exactly what’s being sent - all without your traffic ever leaving your device. WATCH TRAFFIC LIVE * Every request flies across a live 3D globe * Inspect headers, bodies, timing, status codes, and more * See exactly where each server lives SEE WHO’S REALLY BEHIND AN APP * Instantly identify analytics, ads, payments, crash reporting, AI, and other third-party services * See who’s hosting them: AWS, Google Cloud, Cloudflare, and more PRIVATE BY DESIGN * Everything runs locally on your iPhone * Traffic is never uploaded * Your certificates are generated on-device and never leaves it * No account required BUILT FOR * App-curious who want to learn what apps are built with * Developers debugging APIs * QA teams testing apps on real devices * Privacy nerds who want receipts Setup takes just a few minutes. Install Tracer’s certificate, start a capture, and open any app. Your phone. Your traffic. Your business. ~~~~~~~~~~~~~~~~~~~~~ Tracer is free to use. Certain features require a paid subscription. Terms: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
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
React Navigation
Expo Clipboard
Axios
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.
