Its app uses background GPS tracking to count days automatically, reducing the need for manual travel logs. Users can monitor important thresholds, including the 183-day rule, the US Substantial Presence Test, the Schengen 90/180 limit, and other country-specific requirements. Smart alerts, planned-versus-actual timelines, and days-used and days-remaining counters help users understand their status and plan ahead.

For documentation, iReside provides audit-ready reports, including one-click PDF exports with yearly totals, location summaries, and travel-day details. Users can review and correct timeline entries, and subscribers can access detailed reporting. A web dashboard makes residency data available from a browser, while visa trackers support rolling windows, stay-until dates, and re-entry planning. The service also offers guides to tax residency and visa rules, a comparison of tracking apps, and resources for CPAs. iReside is available through a free trial and lists a $34.99 annual plan.