Mission Trip eSIM for Costa Rica (2026): Cheap Local Data, Keep Your US Number

Summary

For a Costa Rica mission trip, a Claro-backed travel eSIM from a few dollars gives your team local data across San José, the Central Valley, and the coasts while your US number stays live for family and emergencies. Costa Rica is a common first-time short-term mission field, and the US State Department advises travelers to stay reachable — this setup does that for a fraction of US roaming.

Connectivity for a Costa Rica mission team

Costa Rica's mobile networks are led by Kölbi, the mobile brand of the state utility ICE, alongside Claro and Liberty. Kölbi has the deepest rural footprint, but it supplies no travel eSIM brand — you can only get it on a local SIM bought in-store with your passport. YonoSIM routes on Claro, so your team gets local-network signal in San José, the Central Valley, and the coastal towns — far more reliable in remote ministry areas than a US roaming partner.

Keep your US SIM in the phone with roaming off, and add the Costa Rica eSIM as the data line. Your US number still rings for a worried parent or your sending church; all data — WhatsApp, maps, photo uploads — runs on the cheap local plan. See the mission-trip eSIM hub for the full team setup.

How much data for 7–10 days

Team member type	Data	Typical price
Light (maps + WhatsApp)	1–3 GB	US$3–12
Standard (photos, nightly calls)	5 GB	US$21–26
Leader / media (livestream, hotspot)	10 GB+	US$33–41

eSIM vs roaming vs pocket Wi-Fi for Costa Rica

Option	Cost	Setup time	Coverage
eSIM (Claro)	Low	~5 min pre-install	Excellent (local carrier)
Carrier roaming (US)	High	Instant	Medium (partner-dependent)
Pocket Wi-Fi	Medium	Airport pickup	Good (extra device to charge)

FAQ

QHow much data does a Costa Rica mission trip need?

AFor a 7–10 day trip, 3–5 GB covers WhatsApp coordination, offline map downloads, photos, and a nightly check-in home. Teams that livestream or hotspot a laptop for reports should pick 10 GB. Plans start at a few dollars and run on Claro, the network YonoSIM routes on in Costa Rica.

QWhich carrier has the best coverage in rural Costa Rica?

AKölbi (state carrier ICE) has the widest reach, including much of the Central Valley, Guanacaste, and the Caribbean side, but it supplies no travel eSIM brand — you can only get it on a local SIM bought in-store with your passport. YonoSIM routes on Claro, which is strong in San José and the towns your team will base out of. Coverage thins on remote jungle and mountain routes, so download offline maps for your specific ministry sites before you go.

QCan I keep my US number while serving in Costa Rica?

AYes. The eSIM is a second line for data only. Keep your US carrier SIM in the phone with data roaming turned off, and your US number still receives calls, texts, and bank verification codes over Wi-Fi or your home line while the eSIM handles cheap local data.

QShould the team leader buy all the eSIMs?

AIt is the simplest approach. One leader buys a Costa Rica plan per volunteer, emails each person their QR code, and everyone installs on home Wi-Fi before the flight. No one hunts for a SIM kiosk after landing at Juan Santamaría (SJO) or Liberia (LIR) airport.

Bottom line

For a Costa Rica mission team, buy a Claro-backed eSIM per volunteer, install on Wi-Fi before you fly, and keep your US SIM in the phone for your number. Your team lands coordinated on WhatsApp, families can reach you, and the money you save on roaming goes to the work instead. See the full mission-trip eSIM guide for the team checklist.

Originally published on www.yonosim.com/en/blog/mission-trip-esim-costa-rica · YonoSIM — You Only Need One SIM