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
Motion Log Cam
Motion Log Cam enables you to record video with useful info embed into it
$4.99 · In-app purchases
PRICE
$4.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
★ 4.2
13 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.
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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 included18 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 Motion Log Cam: map the core Photo & Video 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
Add non-destructive editing and filters.
Assumption to check: Limited video editing features
Validate with people who use this workflow before building.
Hypothesis 2
Design a cleaner, more modern UI.
Assumption to check: User interface feels cluttered
Validate with people who use this workflow before building.
Hypothesis 3
Implement cloud storage for user videos.
Assumption to check: No cloud backup option
Validate with people who use this workflow before building.
Hypothesis 4
Introduce tiered subscriptions for flexibility.
Assumption to check: High price for premium features
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
Motion Log Cam enables you to record video with useful info embed into it. The info embeds include Location Map, Speedometer, G-Force indicator, Time, Date, Distance, Altitude and Elevation Gain. Motion Log Cam includes Standard Camera Features: • Pinch to Zoom. • Rear Camera with Auto Exposure/Focus mode. • Support both Landscape or Portrait mode. Motion Log Cam Features: • Able to set Metric or Imperial units. • Adjustable Speedometer maximum value from 10 - 3000. • Show/Hide Time Second unit. • Show/Hide Current Location Map. • Show/Hide Speedometer. • Show/Hide G-Force Indicator. • Show/Hide Device Altitude. • Show/Hide Device Altitude Gain. Usage: • Travel journey logs. Record your journey along the road. • Monitoring vehicle speed [car or bike] and G-Force during cornering. • Record road travelling time and date. • Monitoring walking/running speed and distance. • And many more depend on your imagination. Notes: ＊ This app requires internet connection to retrieve map data. ＊ Video capture are saved in the photo library for fast and easy access. - Works seamlessly on both iPhone and iPad. - Lightweight, compact app optimized for everyday use. - Ad-free and built with privacy in mind. Thanks for your support and do visit nitrio.com for more apps for your iOS devices.
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
react-navigation
axios
expo-camera
redux
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.
