As a first time eSIM user I had a bit of trepidation but this app worked flawlessly for me. I guess if you need a local phone number this isn’t the way to go, but I just mostly wanted Maps and email and the ability to send iMessages (only Blue works), use FaceTime, WhatsApp, and generally feel connected. Being on an unlimited data plan at home I didn’t really have a sense of how much data I’d need. Bought 1gb for 3 days in London and 10gb for 30 days in Spain (was only there for 14 days but that wasn’t an option). Left each country with data to spare. So I spent a total of about $21. My carrier’s International Plan would have cost $170. Easy to set up. I just followed their instructions to the letter. I guess my only slight complaint is in the wording of the installation instructions - which at one point say something like Activate your SIM (which can be done anytime up to 30 days before you actually touch down in your new country) but that is different than the actual Activation - which shouldn’t happen until just before you arrive at your destination (while you still have internet access) as that begins your clock. Another thing I noticed - that wasn’t a problem - is that in the UK my eSIM didn’t work with my VPN active, but it did in Spain. Different rules for different carriers I suppose. Bottom line it was easy to use, did exactly what I needed it to do and saved me a bunch of dough.

I am traveling throughout Europe and had some difficulty switching plans between countries. I should’ve opted for a regional/global plan from the start; and I recommend to anyone going between 3-4 countries in a week should look into this. Other than that I am very thankful for this service. My provider would’ve charged me 4x as much if not more for as often as I’ve had to use GPS, or message people while on the go. I said it’s a little tricky in my title, but that’s only because it’s my first time using an ESim, and I think I over complicated things looking back by trying to use individual plans for each country I was in. I’m sure next time I need to use an ESIM it’ll be much easier, as it’s designed to be foolproof. I am just a bigger fool than I thought.

I bought 10 GB 30 day package for Taiwan and used it in June 2025. I traveled most of the island - everywhere that my local counterpart had cell service, I had it too. The setup was incredibly easy once I got my regular mobile service provider in the USA to unlock my phone. I would not hesitate to use this again. I only used 4.45 GB in 2 weeks, and was only on wifi in the evenings at my lodging location. However, I did turn off data usage on all the apps except for the ones I regularly use like email, messaging, maps, and safari browser. Find My apparently uses a lot of data but I turned it off when I had my Airtag’d items secured, and turned it back on when I needed it.

Worked. Sometimes. Has to mess with automatic network selection more than half of the time I used it. And then, I had to transfer to a new phone. I made a brand new eSIM, new everything just for this phone. And guess what? The eSIM somehow. For some reason, despite being a NEW and different eSIM decided to log to my U.S. eSIM? And installed itself in SIM1? So I’m sure there’s a hour long fix for this. The same nonsense I bought Saily over using my international data plan for. I requested a refund. Do you want to know what refund that is? It’s a Saily credit. A credit I will never use because I’m never using Saily again. I feel scammed. But that’s okay, this is a Western corporation. I got my Chinese SIM in less time, with less money, and it still works. But Saily? $31, and you can’t even get 20GB of data to work in Vietnam? And then have the audacity to force me to refund it was a corporate credit? Yeah. This is literally a Porters 5 high chance of failure business model.