Prepaidsims Reviews 

Easy to load and use.

We ordered a 30 day SIM card with unlimited data to be used in theUSA and gave the correct activation date. Upon arrival and inserting the sims, neither would work. I contacted the company (whjcb was hard given the time difference and being Christmas week) and initially received a response saying that we had been sent the wrong sim and they could active the one we had been given remotely or be given a refund. Then radio silence. So we then didn’t have a sim card that worked and had to spend a lot more money than we had using this company to get one in the USA. I have since contacted them multiple times with zero response. DO NOt recommend this company.

As far as Japan goes, 'unlimited data' is not how we know it in Australia.
If you use a certain amount of gig I believe around 5 you get throttled down to an unusable speed. It's a thing in Japan. Don't watch any streaming services without WiFi connection.
Apparently it resets but that didn't help when I was stranded without maps. If this info was available upon purchase then It must have been well concealed.

Great, easy to use, minimal set up, insert and go

In Feb 2025 we used a "30 day unlimited data" SIM which satisfied all our needs. The lack of a phone number was addressed by using WhatsApp for calls.
Which is why we're using the same SIM for our next tour in 2026.

Besides the great prices and rewards for being a repeat customer, the best part of Prepaidsims is their service. No matter what your query is, even if it relates to my Australian carrier, Prepaidsims always replies to my emails promptly with adequate information to resolve my overseas SIM usage. It is rare these days for an online business that actually care about the correct functioning of the eSIM or SIM purchased to ensure the customer has a great experience overseas.

easy of applying online and delivery process.

Was extremely comforting to be able to access data anyway.
Being able contact travel companions via messaging service like Whatapp made things very convenient.

Glad I choose PrepaidSims service for my mobile data needs. It was easy to setup, support staff was quick, responsive and super helpful.
I will definitely recommend them to friends and families. 👍👍👍

Very easy to install. Good reception

I have used prepaid sims on several holidays and have never had a problem using them. They are invaluable for navigating (using google maps) and for local calls.
We have several more holidays in the pipeline and will definitely use prepaid sims.

The SIM is exactly what I am looking for for my 2026 travels. I had a couple of questions prior to purchase and they were answered immediately. Love the how-to-guide that came with the SIM. These were also followed up with email instructions.

The japan esim worked well on my cruise as we hugged the coastline and only occasionally ventured out of range. The taiwan esim worked well in both cities also.

It worked as it said, even changing activation date was no effort

I have had consistently fantastic experience with Prepaid Sims. I have travelled to many destinations all over the world and have never been let down by the travel sim cards purchased from Prepaid Sims; on the contrary - I have enjoyed great connectivity, access to the internet and Google Maps and WhatsApp. During my recent trip to mainland China I enjoyed access to Google and WhatsApp thanks to Prepaid Sims. Highly recommended!

Everything seemed to work perfectly until I tried to send an SMS with a photo attached. The error message said my data balance was zero and so the message was not sent. This caused some angst until I my enquiry told me that SMS messages could not contain attachments but could do so with Messenger or WhatsApp! Otherwise, no problems. Easy set up.

I have loaded the ESim before going overseas. the process is quite easy. After landing the overseas airport, the ESIm is working instantly. It was very smooth process.

Very easy process. Order online. Arrives by post if that whats you choose. Simply instructions that work! No fault while away overseas. I would certainly order again for any future trips.

Simple purchase, clear instructions.