HOLASIM (www.holasim.com) has a 4.8 out of 5 rating on OK.one, based on 57 user reviews collected here. It is listed under Electronics & Technology and its reputation is excellent. Praise is nearly unanimous, with 93% rating it 4 stars or higher; The business has replied to 100% of negative reviews; 27 of them were added in the last 12 months. Last updated 2026-08-12.
I highly recommend eSIM's technical support; it's fantastic. The human agent responded quickly to my request and resolved my issue effectively. This support gives me confidence to continue using the eSIM service. I want to highlight the knowledge and speed of the ATKINS agent.
Outstanding service from HolaSim team at Buenos Aires,specifically Sergio s attention and support.
I bought an esim but did not receive the email, contacted the whatsapp and was kindly helped! Thank you for your help! Great experience!!
I always use hello sim for my trips and it's amazing, it works perfectly everywhere connected. To travel it helps me to locations. Always connected with social networks. And I have had network activation problems when I have moved from one country to another, and they have solved it in less than 20 minutes. Sergio attended me one day when I went from Switzerland to Italy and helped me a lot.
Good service and quick and efficient support
Atkins made my day....he guided me step by step on solving my problem....now connection is perfect. Thanks Atkins.
My problem was solved, I’m really happy.
I Had a problem and they help me to resolve very fast. After that it worked very well. Very good Suport and speed
Hola Binho! Thanks a lot. 💛 Fast human support is exactly what we're about — glad everything worked great after. See you on your next trip!
Great service. Very Lind.
Hola Henry! Thank you so much. 💛 See you on your next adventure!
Great service It delivered what it promised. Useful to avoid roaming costs or any limitation. For less than $20 I used it for 20 days all along Europe. No cuts, connected every time
Hola Daniel! This one makes our day. 💛 20 days across Europe, no cuts, no roaming surprises — exactly what we promise. One tip: don't delete your eSIM, keep it installed and just top it up on your next trip. We'll be right there!
I wasn’t able to make it work on my own, when I had free WiFi I could talk through WhatsApp and were helpful and clear, but I needed free WiFi to be able to contact help center
Hola Ana Karina! Thanks for the honest review — we're glad our team could sort things out once you were online. 💛 One tip that makes it smoother next time: you can install and activate your eSIM before you travel, while you're still on your home WiFi, so you land already connected — no need to find free WiFi to reach us. And if anything comes up on the road, our human support is here 24/7. Hope to see you on your next trip! — The HOLASIM team
I use Holasim in every trip since many years now. Easy to install, and in case you have any doubt or problem, they assist you virtually via whatsapp instantly
I Can use it in Usa really well. And the help by chat was excellent.
So far so good.. in customer service..
I had difficulties to activate the eSIM , instead
The service functions adequately, and the quality and responsiveness of customer support are solid.
I use Holasim’s eSIM on every trip and I’ve never had any problems. The connection has always worked really well — it even worked at the DMZ on the border with North Korea! The unlimited plan has a great price, especially for people who work creating content and need reliable internet while traveling. Installation is usually very easy, and whenever I had any difficulty, their chat support replied super fast and helped me right away. I definitely recommend Holasim for international trips.
The support helped me with my problem and solved
57 reviews matching