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
OfficeTime Time Keeper Pro
OfficeTime is an amazingly intuitive time tracker
$7.99 · In-app purchases
PRICE
$7.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
★ 4.3
73 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 included17 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 OfficeTime Time Keeper Pro: 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 better project organization features, like folders or tags.
Assumption to check: Users find difficulty in managing multiple projects efficiently.
Validate with people who use this workflow before building.
Hypothesis 2
Add customizable reports and analytics features.
Assumption to check: Limited reporting options for productivity analysis.
Validate with people who use this workflow before building.
Hypothesis 3
Introduce a clear UI for switching between tasks and tracking them separately.
Assumption to check: The timer can be confusing with multiple simultaneous tasks.
Validate with people who use this workflow before building.
Hypothesis 4
Integrate reminders and notifications for upcoming tasks and deadlines.
Assumption to check: Lack of reminders for task deadlines.
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
OfficeTime is an amazingly intuitive time tracker. Where other time keepers are clumsy or oversimplified, OfficeTime balances features and ease of use, allowing you to easily track exactly what you do each day. Try our other free version and upgrade to this paid version keeping all your data. Effortlessly capture your hours and expenses. Easily track your projects and life. Designed for freelancers and small teams. Wirelessly sync with OfficeTime for Mac or PC (sold separately) for easy invoicing and much more. * Track your time from your "today" screen with the OfficeTime widget. * No monthly fees. * Increase your billables * Know if you’re on budget * Improve your productivity by knowing where your time goes * Easy, intuitive, flexible. * Pay once. Get for both iPad and iPhone * Work offline. No need for WiFi or cell connection. * Export to Numbers, Excel and tab delimited. * Get cross team reports on your Mac or PC (sold separately) * Work with cross platform offices (sold separately): PC, Mac , iPhone, iPad * Run multiple timers * Rapidly switch tasks * Time in the background * Free Apple Watch version to start and stop tracking on the go! How does this differ from the free version? You get unlimited projects and categories, export by email, rounding, sync to Mac/PC (sold separately) and OfficeTime on your Apple Watch and home screen. *** Guaranteed! 100% refund if it doesn't pay for itself in increased productivity. Contact [email protected] for a “any excuse” refund. *** PRESS REVIEWS "Editor's Choice" PC Magazine “5 STARS” Tap! Magazine "Essential iPad Apps for Business" Apple "One of the best iPhone productivity apps" SimonBlog "For something as annoying as expense tracking, OfficeTime took a smart approach" Washington Post "Easy to use" Appmodo "Pick of the Week" TIPB "Tracking just got simple, fast, and effective" SvenOnTech "A valuable app" iPad Apps Reviewer "Best iPhone Apps of the Week" appadvice.com A FEW 5 STAR USER REVIEWS Best time tracker on the app store by dwvaughan Best non-Apple product by Karen Kirtland The best time tracker out there by b.vanham Best time tracking program ever! by Xina Text & Support Best Time Tracking App Ever!! by Dolphena Best app in it's category by UB1 Best time card App!! by Jj.Tang Best of the bunch by zukeeper416 Best time tracking app by Str793 Absolutely worth it! by Bob Ransom SUPERB! by VRlaw Perfect ! by Diarbyrag Brilliant! by Glenbo Fantasic! by JEFFREY PRICE LOVE IT by greg kimble Great app by orangestone Simple and powerful!! by Chris1234772 Simply wonderful by Workin' stiff Simple. Easy. Useful. by Mr. Zorg Outstanding Software by JennyBJ Absolutely Fabulous! by warmfuzzygrrl Highly recommendable! by Christian Egger Superb app! by Elomqerk Great App! by ArcPD Must have for consultants by Finfall Worth the Purchase Price by Ron Freeman Awesome Program by MickeyM619 Brilliant by Diarbyrag Awesome app! by Auriclus Great App! by ArcPD Highly recommend it by gfieng Freelencer's dream! by Mmv2a Finally - a perfect time tracking app by That computer services The Angry Birds of productivity apps by Snarfy Bargleboots WE CARE! Contact us at [email protected] Join the OfficeTime community at www.officetime.net (As much as we'd love to, we can't respond to comments below but always answer our email.)
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.
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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.
