Days in State vs Domicile365: State Residency Tracking Compared

Domicile365 and Days in State both track state residency days, but they're built for different audiences. Domicile365 is an enterprise-grade platform designed for tax advisors, employers, and high-net-worth individuals who work with professional advisors. Days in State is a privacy-first app designed for individuals managing their own state tracking.

Understanding which category you fall into will largely determine which app is right for you. Here's a thorough comparison.

1. Overview

Days in State is an iOS app from Best Day Labs. It uses GPS to automatically track which states you visit each day, storing all data on your device. It's aimed at individuals — remote workers, snowbirds, digital nomads, and anyone who splits time between states. It also provides six free web-based tax calculators.

Domicile365 is a residency tracking platform built for a broader ecosystem. Beyond individual tracking, it includes an advisor portal where tax professionals can monitor their clients' residency data, employer dashboards for workforce compliance, and integrations designed for professional advisory workflows. It's available on iOS, Android, and the web.

2. Target Audience

This is the most important distinction between the two products, and it should drive your decision.

Days in State is for individuals. If you're tracking your own days to stay on the right side of the 183-day rule, document a domicile change, or prepare for a potential state tax audit, Days in State gives you what you need without complexity you don't.

Domicile365 is for ecosystems. If your tax advisor wants to monitor your residency data in real time, or if your employer needs to track workforce location for multi-state withholding compliance, Domicile365's advisor and employer portals serve that workflow. Individual users can sign up directly, but many come through an advisor or employer relationship.

3. Privacy & Data Architecture

The privacy models are fundamentally different, and this flows directly from the different target audiences.

Days in State stores everything on your device. Your GPS coordinates, state crossing logs, and day counts never leave your iPhone. There's no cloud database of your movements, no advisor portal accessing your data, and no server to breach. You own your data completely.

Domicile365 uses cloud infrastructure by design. The advisor portal, employer dashboard, and multi-device sync all require your data to live on external servers. This isn't a flaw — it's a requirement of the product's design. If your advisor needs to see your real-time day counts, that data must be accessible through the cloud.

For individuals who don't work with advisors, the cloud architecture means your detailed travel history is stored on Domicile365's servers without a clear benefit to you. For those who do work with advisors, the shared access is the entire point.

Winner: Days in State for individual privacy. Domicile365's cloud model is appropriate for its advisor-focused use case but represents an unnecessary privacy exposure for self-managing individuals.

4. Pricing & Free Tier

The pricing structures reflect the different market positions.

Days in State offers a free tier with basic tracking features, with premium plans at $4.99/month, $19.99/year, or $39.99 for lifetime access. Beyond the app, it provides six free web-based tax tools available to everyone, including a Day Calculator, 183-Day Threshold Tracker, and State Residency Rules Lookup.

Domicile365 offers a 60-day free trial for individual users. After the trial, a paid subscription is required. Pricing for enterprise and advisor accounts varies and is typically handled through sales conversations. Individual pricing has historically been competitive but is not always transparently listed.

Winner: Days in State for transparent, low-cost individual pricing and free tools. Domicile365 may be cost-effective when bundled through an employer or advisor relationship, but for individuals paying out of pocket, Days in State is the clearer value.

5. Features

Days in State Strengths

• Free tax tools: Six web-based calculators for residency planning, including Audit Risk Assessment and Tax Savings Calculator
• On-device processing: Works without internet for core tracking
• Simple interface: Designed for individuals, not enterprise workflows
• Educational content: Blog with guides on topics like snowbird taxes and remote worker compliance
• Lifetime purchase: One-time $39.99 payment for permanent access

Domicile365 Strengths

• Advisor portal: Tax professionals can monitor client residency data directly
• Employer dashboard: Workforce compliance tracking across employees
• Multi-platform: iOS, Android, and web access
• Document storage: Attach residency-related documents to your profile
• Professional reports: Generate detailed compliance reports for advisors
• Multi-user management: Manage family or team members under one account

Winner: Depends entirely on your use case. Domicile365 wins for advisor and employer workflows. Days in State wins for individuals who want simplicity, privacy, and free tools.

6. Platform Support

Domicile365 supports iOS, Android, and web. This is a genuine advantage for users on Android or those who want to access data from a desktop browser.

Days in State is iOS only, requiring an iPhone with iOS 17.0 or later.

Winner: Domicile365 for platform coverage. If you're on Android, Days in State isn't an option.

7. Side-by-Side Comparison

Feature	Days in State	Domicile365
Primary Audience	Individuals Simpler	Individuals, advisors, employers
GPS Auto-Tracking	Yes	Yes
Data Storage	On-device only More Private	Cloud + advisor portal
Free Tier	Yes Available	60-day trial only
Monthly Price	$4.99/mo	Varies
Lifetime Option	$39.99 Available	Not offered
Free Tax Tools	6 calculators Included	None
Advisor Portal	No	Yes Available
Employer Dashboard	No	Yes Available
iOS Support	Yes	Yes
Android Support	No	Yes Available
Web Access	No	Yes Available
Document Storage	No	Yes Available

8. The Bottom Line

Choose Days in State if:

• You're an individual tracking your own state days
• You want your location data to stay on your device
• You prefer transparent, affordable pricing with a lifetime option
• You'd benefit from free tax calculators and educational resources
• You don't need an advisor or employer to access your data

Choose Domicile365 if:

• Your tax advisor wants direct access to your residency data
• Your employer uses it for workforce compliance
• You need multi-platform support (especially Android)
• You want to store residency documents alongside your tracking data
• You need professional compliance reports

These two apps serve overlapping but distinct markets. Domicile365 is a compliance platform for professional ecosystems. Days in State is a personal privacy tool for individuals. If someone told you to use Domicile365, it's probably your advisor or employer, and it may be the right fit for that workflow. If you're choosing for yourself, Days in State gives you what you need at a lower cost with stronger privacy.