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
EchoUploader
echo uploader makes it easy to connect your rogue echo rower, track your workouts in real time, and seamlessly upload your sessions to strava
$2.99 · In-app purchases
PRICE
$2.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
★ 3.0
2 ratings · Below Average
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
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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 EchoUploader: 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
Focus on user testing and feedback to improve app usability.
Assumption to check: Limited user reviews and feedback may indicate poor user experience.
Validate with people who use this workflow before building.
Hypothesis 2
Identify key features users desire and prioritize their development.
Assumption to check: Low rating (3.0/5) suggests dissatisfaction with features or functionality.
Validate with people who use this workflow before building.
Hypothesis 3
Incorporate social features like sharing progress or challenges.
Assumption to check: Lack of social or community features limits user engagement.
Validate with people who use this workflow before building.
Hypothesis 4
Implement a free trial or freemium model to attract more users.
Assumption to check: No free tier or trial may deter new users.
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
echo uploader makes it easy to connect your rogue echo rower, track your workouts in real time, and seamlessly upload your sessions to strava. echo uploader helps you monitor your performance, analyze detailed workout history, and share your achievements with friends or your fitness community. key features: - effortless connection: instantly pair your rogue echo rower and start tracking your workouts with a single tap. - live metrics: view real-time stats including time, distance, pace, stroke rate, and heart rate as you row. - workout history: browse your past sessions, review detailed data, and monitor your progress over time. - strava integration: upload your workouts directly to strava to keep your fitness journey in sync and share your results. - user-friendly design: enjoy a clean, intuitive interface built for both beginners and experienced athletes. whether you’re training for competition or rowing for fitness, echo uploader gives you the tools and insights you need to stay motivated and reach your goals.
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
expo-image-picker
react-navigation
expo-file-system
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.
