If you travel to Europe without a long-stay visa, the Schengen 90/180 rule governs how long you can stay, and miscounting can mean an overstay, a fine, or a refused entry. A calculator or tracking app takes the arithmetic off your hands. And since April 2026 the stakes are higher: the EU's Entry/Exit System now records every border crossing digitally, so a miscount is no longer something a busy border guard might miss. This guide covers the official free tool and the apps that automate the counting, with every claim quoted directly from an authoritative source, linked and dated (updated 4 August 2026).
Accurate as of 24 August 2026. Every statement about another product on this page comes from that company's own public materials (their website, App Store or Google Play listing) on that date. Where a company does not publish something, we say it is not stated in their materials rather than assuming it is absent. We do not publish App Store ratings in comparisons: rating counts differ so widely between products that side-by-side scores mislead more than they inform. Prices and features change, so check the linked sources before relying on any figure.
The rule, in the official words
The European Commission states the rule plainly. Visiting the Schengen area, you are:
"usually allowed to stay for a maximum of 90 days within any 180-day period."
— European Commission, Short-stay calculator (accessed 4 June 2026)
The area this applies to is larger than many people realise. Per the Commission:
"The Schengen area is composed of 29 countries: 25 EU Member States and 4 non-EU countries (Iceland, Norway, Switzerland and Liechtenstein)."
— European Commission, Short-stay calculator (accessed 4 June 2026)
So your 90 days are shared across all 29 countries combined, not per country. That is what makes manual counting error-prone, and why a calculator helps.
2026 update: the EES now counts your days at the border
The biggest change to Schengen compliance in years is not a rule change but an enforcement change. The EU's Entry/Exit System (EES), in the Commission's words, is:
"an automated IT system for registering non-EU nationals travelling for a short stay" which "registers the person's name, travel document data, biometric data (fingerprints and captured facial images) and the date and place of entry and exit".
— European Commission, Entry/Exit System (accessed 4 August 2026)
After a progressive rollout that began on 12 October 2025:
"The system became fully operational on 10 April 2026."
— European Commission, Entry/Exit System (accessed 4 August 2026)
Crucially for anyone counting days, the Commission says the EES enables:
"the automatic detection of overstayers (travellers who have exceeded the maximum duration of their authorised stay)".
— European Commission, Entry/Exit System (accessed 4 August 2026)
In other words, the border now runs the 90/180 calculation about you, automatically, whether or not you ran it yourself. What the EES does not do is warn you in advance. It detects an overstay after it has happened. Keeping your own count, with a calculator or an app that alerts you before you reach 90, is now the only way to stay ahead of a system that never miscounts.
The official, free option: the EU short-stay calculator
The European Commission publishes its own calculator. It works in two modes, in its words:
Check mode "calculates the length of previous and/or on-going stays to check if the stay complies with the 90/180-day rule"; Planning mode "calculates the maximum length of stay allowed on a particular day in the future."
— European Commission, Short-stay calculator (accessed 4 June 2026)
This is the authoritative reference and it is free. Its limitation is that it is manual: you type in each entry and exit date every time you want to check, and it does not record your travel for you or warn you as you approach the limit. For a one-off check before a trip, it is ideal. For ongoing tracking, an app is more practical.
Apps that calculate and track Schengen days automatically
Several apps add automatic tracking and alerts on top of the same 90/180 maths.
Days Monitor
Days Monitor logs your Schengen days automatically in the background and shows the rolling 90/180 window as you travel. The product describes itself as:
"The automatic day counter for travelers and nomads. Days Monitor counts your days across countries, states, and provinces for visas, tax residency, and travel history. No check-ins. No spreadsheets."
— Days Monitor for iPhone (accessed 4 August 2026)
Two features matter specifically for Schengen use. A trip planner shows what any planned trip does to your allowance before you book it (days used, days remaining, and status, projected across the worst 180-day window in your plan). And beyond the built-in Schengen rule, you can create your own fixed-period or rolling-window rules for any country, so 183-day tax tests and national visa limits live in the same place as your 90/180 count. It is free to download, with the automatic tracking in a subscription. You can try the maths first on our own free Schengen 90/180 calculator.
Flamingo Compliance
Flamingo includes a Schengen tracker and planner. Its listing states you can:
"See how many combined days you've already spent in Schengen countries within the current 180-day period ... Calculate the earliest date you can travel to the Schengen Area by entering your desired stay duration."
— Flamingo Compliance, App Store (accessed 4 June 2026)
It pairs this with a visa index, so it is a good fit if you also want entry-requirement lookups.
Monaeo
Monaeo, aimed at organisations, also tracks Schengen:
"Automatically track Schengen days to stay within the 90/180-day rule and avoid visa issues or penalties."
— Monaeo website (accessed 4 June 2026)
It is built for workforce compliance rather than individual travellers, so it is most relevant to employers.
Calculator or app: which do you need?
- A one-off check before a trip: the free EU short-stay calculator is the authoritative choice.
- Ongoing tracking with automatic logging and alerts: an app such as Days Monitor or Flamingo records your days for you and warns you before you hit 90.
- An employer tracking staff: Monaeo handles Schengen at organisational scale.
Whichever you use, the maths is the same 90-in-180 rolling count the Commission describes. The value of an app is simply that it does that count continuously, in the background, so you are never surprised at the border. Start with our free Schengen calculator to see where you stand today.
Corrections
Every competitor claim here is checked against that company's own published materials and date-stamped. If you represent a product named on this page and believe anything is inaccurate or out of date, contact us and we will correct it promptly.
Sources
- European Commission, Short-stay calculator (accessed 4 June 2026)
- European Commission, Entry/Exit System (EES) (accessed 4 August 2026)
- Days Monitor, App Store (accessed 4 June 2026)
- Flamingo Compliance, App Store (accessed 4 June 2026)
- Monaeo website (accessed 4 June 2026)
Frequently Asked Questions
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