App Overview

TaxDay icon

TaxDay

TaxDay LLC · Finance

Are you a frequent traveller? Have more than one home and travel frequently between them? Are you tracking your tax residency status?

Free · In-app purchases

PRICE
Free
In-app purchases
BUSINESS MODEL
Freemium
No overall Grossing estimate available
RATING
3.8
66 ratings · Top 50%

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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Combine features and design from your favorite apps.

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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/
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Illustrative example: an invoice app for independent contractors. Your kit is tailored to the app you choose; this is not its generated content.

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.

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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Quick prompt

> SELECT BUILD PLATFORM:

Good fit for mobile-first iOS and Android prototypes with managed app scaffolding.

// RORK SYSTEM PROMPT
Rork plan preview for TaxDay: map the core Finance 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 guided onboarding process to simplify navigation.

Assumption to check: Users find it hard to navigate complex tax information.

Validate with people who use this workflow before building.

Hypothesis 2

Enhance the AI for better categorization accuracy.

Assumption to check: Inaccurate automatic categorization of deductions.

Validate with people who use this workflow before building.

Hypothesis 3

Offer more functionalities in the free version to attract and retain users.

Assumption to check: Limitations on free features.

Validate with people who use this workflow before building.

Hypothesis 4

Introduce a chatbot or live chat feature for user inquiries.

Assumption to check: Lack of personalized support.

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

Are you a frequent traveller? Have more than one home and travel frequently between them? Are you tracking your tax residency status? The US tax code is over 50,000 pages long. With TaxDay, you’ll be able to easily monitor your travel with GPS against every US state residency tax code. Make filing a breeze with quick reporting and get better prepared for audits with TaxDay. TaxDay is the perfect tool to help frequent interstate business travelers and people with multi-state residency plan and accurately track taxable days (and now includes New York City tracking!). It runs silently in the background, using your phone's GPS, and a comprehensive database of state-by-state residency tax rules, to securely track travel. And, when traveling outside the U.S., TaxDay will now track that as well, indicating the specific travel for over 150 countries countries. Smart notifications and an intuitive reporting interface make it easy to manage records and generate an accurate, complete report in case audits. Key features include: • At-a-glance travel summary: A “just the facts” snapshot of your travel and taxable days in any jurisdiction is at your fingertips. • Receipt management: Attach receipts to your travel records for thorough record-keeping. • Threshold notifications and alerts: Never risk losing track of how many days you’ve spent in a particular jurisdiction. TaxDay warns you when you’re close to triggering tax day thresholds and becoming a potential resident. •Travel record export: Easily generate a detailed report to share with your accountant or anyone else. Getting started is easy! • All new TaxDay members enjoy a risk-free 45-day trial to start. • After your trial, you can decide if you’d like to subscribe to TaxDay for $9.99 per month, billed to your iTunes Account at confirmation of purchase. • There’s no commitment—cancel anytime. The fine print: • Payment will be charged to iTunes Account at confirmation of purchase. • Subscription automatically renews unless auto-renew is turned off at least 24-hours before the end of the current period. • Account will be charged for renewal within 24-hours prior to the end of the current period, and identify the cost of the renewal. • Subscriptions may be managed by the user and auto-renewal may be turned off by going to the user’s Account Settings after purchase. • Any unused portion of a free trial period, if offered, will be forfeited when the user purchases a subscription to that publication, where applicable. Terms & Privacy Policy: http://taxday.com/terms.html

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
Zustand
React Navigation
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.