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
Timesheet - Time Tracker
Timesheet is a time tracking app that makes recording your working time seamless and natural
$3.99 · In-app purchases
PRICE
$3.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
★ 4.0
28 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 Timesheet - Time Tracker: map the core Productivity 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 a more engaging and gamified interface.
Assumption to check: Users often find time tracking apps tedious to use.
Validate with people who use this workflow before building.
Hypothesis 2
Add support for popular project management tools.
Assumption to check: Lack of integrations with other tools.
Validate with people who use this workflow before building.
Hypothesis 3
Provide better reporting tools and visualizations of logged time.
Assumption to check: Difficulty in reporting and analytics features.
Validate with people who use this workflow before building.
Hypothesis 4
Improve cloud sync features and reliability.
Assumption to check: Inconsistent syncing issues between devices.
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
Timesheet is a time tracking app that makes recording your working time seamless and natural. It helps you manage your life with a clean, simple, and minimalistic design. • Easy to use When you start your work, you can input it using the stopwatch. When the work is finished, you can input the time directly. You can enter your data anytime and anywhere you want! • Stopwatch and repeating alarm You can set a repeating alarm every 20, 30, 60, 90 minutes. This is very useful tool when you want to concentrate on your work. In Apple Watch, You can receive alarm notification and Start/Stop of stopwatch. • Various scenes of the total time You can check the total time on a per day, per project and per tag basis. The time period for the total time can be inputted as 1 day, 1 week, 1 month, 6 months, 1 year and free. The information provided by the app will help you improve your daily activities. • Output ・Weekly Report(PDF) ・Monthly Report(PDF) ・Project Report(PDF) ・CSV • Save in Calendar This app can save your data in your calendar. With iCloud, you can sync the calendar automatically to your various different 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
Supabase
react-native-paper
date-fns
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.
