We’re the
roaming-bill
resistance.
RedSim started after a two-week trip to Istanbul (half work, half holiday) ended with a $127 roaming bill from video calls, ride-hailing, and a few too many 'just one quick search' moments. There had to be a better way, so we built it.
2 min
Average activation time
200+
Destinations covered
800+
Partner networks worldwide
24/7
Real humans on WhatsApp
Four principles, no fine print.
Everything we build starts with the traveler. These four rules guide every decision.
Honest pricing
The price you see is the price you pay. No hidden fees at checkout, no surprises mid-trip.
Multi-network
Your eSIM connects to the strongest local 4G/5G network available, not just one carrier.
Human support
Not chatbots. Real people on WhatsApp who actually answer your question.
Privacy first
We don't sell your data and we don't profile you. We send your QR code and that's it.
From a hotel lobby to 200+ destinations.
The sparkOne painful roaming bill
Two weeks in Istanbul, half work and half holiday. A $127 roaming invoice on the flight home.
First stepTurkey first
We launched with the country we know best. Local plans, honest prices, instant QR delivery.
2026RedSim goes global
One app for 200+ destinations, plus regional and global plans.
TodayBetter every week
Lower prices, more destinations and 24/7 WhatsApp support.
We're not trying to build the biggest eSIM company. We're trying to build the one your friend would actually recommend over coffee.
Gökhan KINAYFounder