About TailSim
Why travelers choose TailSim for mobile data
We believe mobile data shouldn't be expensive or complicated. Our mission is to make staying connected abroad as simple as buying a coffee.
Why we built TailSim
TailSim was built to kill the roaming bill
TailSim is a Colombian eSIM provider built for travelers, remote workers, and small businesses that need reliable mobile data across borders. We started TailSim because we got tired of expensive roaming and physical SIM swaps — and today, one prepaid eSIM covers 100+ countries and regions.
Our team operates from Colombia, where we run the storefront, manage customer support, and curate the catalog of destinations. The network behind each plan is delivered by established carriers in every country we cover, so you get local speeds and coverage without the roaming bill.
The numbers behind TailSim
- 100+ countries and regions covered
- $3.99 starting price (USD)
- 24/7 customer support by email
- < 5 min average activation time
The principles behind TailSim
Simplicity
Buy, scan a QR code, connect. No plastic SIM, no airport kiosk, no contract.
Transparency
The price you see is the price you pay. No daily fees, no roaming surcharges, no activation costs.
Real coverage
Every plan runs on established local carriers in the destination — so you get the same speeds locals do.
Honest refund policy
If your device isn't eSIM-compatible or the plan doesn't work in your destination, you get your money back.
Human support
When something doesn't work, you email a real person on the team in Colombia — not a chatbot, not a ticket queue.
Built for travelers like you
Solo travelers heading to one country, frequent flyers crossing borders every month, remote workers who need reliable data across time zones, and small businesses sending staff to conferences or short trips. If your trips need predictable mobile data and your hands need a SIM tray that isn't full of plastic cards, TailSim fits.
TailSim's promise to you
We started TailSim because we got tired of coming home to four-figure roaming bills and the airport ritual of hunting for a working SIM kiosk. Today we keep the promise by curating reliable carrier partners, keeping the catalog transparent, pricing every plan fairly, and answering support tickets ourselves. If a destination or a plan ever falls short, tell us — we use the same feedback loop to decide what to fix next.
Ready to try TailSim?
Pick a destination, choose a data plan, and activate your TailSim eSIM in minutes.
