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
Simply Track Time: Tracker
Track your work hours and manage projects effortlessly with Simply Track Time, a clean and intuitive time tracker designed for macOS, iPad, and iPhone.
$1.99
PRICE
$1.99
No 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 should your app do differently? Your note travels with the kit so your coding agent builds around your idea.
What's included14 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 Simply Track Time: Tracker: map the core Business workflow, choose the smallest differentiated feature set, define the data and monetization boundaries, then prototype the riskiest user journey first.
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App evidence
Original App Store material. Ratings and screenshots describe the existing app, not proof of demand for your version.
Screenshots
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App Store description
Track your work hours and manage projects effortlessly with Simply Track Time, a clean and intuitive time tracker designed for macOS, iPad, and iPhone. Whether you are a freelancer logging billable hours or a professional managing daily tasks, our app makes timesheet management simple. Create projects and activities, start your task timer with a single tap, and monitor your working hours and sessions in real-time. Each work log is automatically recorded and displayed in a clear, daily-organised timeline.Need to bill clients? Mark activities as billable, set your hourly rate, and let the app calculate your earnings automatically. Export your timesheet and financial data directly to Numbers or Excel for quick invoicing and further processing.Use favourites to pin your most important projects to the top for lightning-fast access. Prefer another language? The app supports 11 languages, with more being added regularly. Your data seamlessly syncs across Mac, iPad, and iPhone using your Apple ID — so your productivity follows you everywhere. No subscriptions required, just a simple one-time purchase to take control of your time.
Written user reviews are not shown here. Check current App Store reviews >
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 more intuitive task switching feature.
Assumption to check: Users often find it difficult to manage multiple tasks simultaneously.
Validate with people who use this workflow before building.
Hypothesis 2
Introduce automated tracking based on user activity.
Assumption to check: Time tracking can be tedious and prone to error.
Validate with people who use this workflow before building.
Hypothesis 3
Add customizable reporting options with visual analytics.
Assumption to check: Limited reporting features make it hard to analyze time spent effectively.
Validate with people who use this workflow before building.
Hypothesis 4
Incorporate reminders and notifications for logging tasks.
Assumption to check: Users may struggle with remembering to log their time.
Validate with people who use this workflow before building.
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
Supabase
Zustand
React Navigation
react-native-chart-kit
BUILD KIT DIFFICULTY
Starter
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.
