Universal 3-in-one SIM Card for use in Over 200 Countries with $5 Credit – Voice, Text and Mobile Data as Low as $0.01 per MB. Compatible with All Unlocked GSM Phones. 4G in 50+ Countries.

Legit system. Works like a charm. Simple interface, easy to use and very straightforward. The packaging gives all the steps you need (it's only 4 steps), and the website is self-explanatory. The testing feature is great, which makes things a lot easier. Works instantly.

la flexibilidad y disponibilidad cuando visitas mas de un país en un corto periodo, no tienes que comprar una nueva sim card cada que cambias de pais.no me gusto que solo se tenga un limite mensual y tengas que esperar el corte para recargar, aunque le hayas dado la opción de recarga automatica, sobre todo en estos tiempos de emergencia,a mi me ocurrió, tuve que usar mas datos de los esperados a consecuancia del coronavirus y sus consecuencias en el turismo.

Great experience with OneSimCard. The SIM was easy to activate, the USA number worked as expected, and the service has been reliable. I would recommend it to anyone who needs an international SIM card.

Very fast delivery, easy to register, but, whilst it said my credit card details didn't match, it proceeded to take 10 transactions of $1 usd off my card. I'm in the process of sorting that now, so wait for an update!Update: nope, the issue was mine, all sorted and ready to go 👍Final update: the app kept trying to validate my credit card, and the $1 'charges' were just authorisations. For some reason, my card did not want to interface with the app, but, using another card, all went as it should.

The OneSimCard Universal SIM installed without any issues in an unlocked Samsung Galaxy S8. Setting up services on the website was straightforward, with a myriad of options and packages to fit pretty much any need. Local networks (Rogers Wireless in Canada and Smart and Globe in the Philippines) were detected and connected to within minutes. No problems whatsoever making or receiving calls or using data. 10/10 an excellent option for global mobility if your home carrier's travel rates are exorbitant or you want to present a local number wherever you are.

First of all, I am telecommunications professional with extensive knowledge of how those services work and I must say this is a very complex service that needs a very thorough research before buying.The main reason I bought this SIM card was to have a worldwide enabled device able to provide emergency communication while traveling; and I do travel extensively all over the world, including at sea (cruise ships). I do not use it as a main mean of connectivity as it can be very expensive, depending on the circumstances but from a technical point of view it does work as advertised. The setup process was relatively easy: register the SIM card through the seller website, insert the SIM in a factory unlocked phone and done ... the service was available immediately without any extra manual settings on the phone.Now the big warnings: data charges accrue extremely fast even with all the possible tweaks of the phone so switch OFF cellular data unless you know exactly what is running on the device (background processes, cloud services, updates, etc. etc.) and even so, only use it when in dire need and there is no other choice (Wi-Fi for example).Based on the rates and the instructions regarding calling, I can see a lot of different situations in various countries where it can become cumbersome to actually make a call. I do not use the Assistant App since I don't want it to take control over the network profiles of the phone and if one is carefully following the instructions, there is no need to install it anyway. However, I can't stress enough the importance of researching / noting down / maybe even printing the specific instructions for the carriers in the countries you plan to visit BEFORE the trip. If not, you might run into a situation where the SIM card won't register correctly on the host network and the service won't work properly (or at all) due to specific settings on the phone. The rates are acceptable for a global enabled device, of course if not spending hours on a call. Saving debit card details in the on-line account or setting up auto-recharge might be an option to consider just in case the credit is depleted (otherwise you will need to find a Wi-Fi hotspot to access the on-line account and recharge).What I like the most is the SMS feature, where almost all incoming SMS are free, no matter where you are (including at sea, while on a cruise ship). Thus, in case of a home emergency, people can send you a SMS alert. There is even a section on the provider website that allows sending free SMS to any OneSimCard number (main number).The extra PENs (extra phone numbers linked to the main Estonian number) are expensive to use as they charge a monthly subscription fee as well as extra calling / SMS fees if used.Overall I am pleased with the purchase but again, do your own very extensive research before buying as well as before going on any trip abroad otherwise you risk to be disappointed.My own use case, as stated before, is to have a failsafe / backup calling / SMS / data option just in case of an emergency. I set up some popular Wi-Fi messaging / calling apps like Whatsapp, Hangouts, etc. to use as main communications tools but just in case, I also have this SIM card with the provided main Estonian number. My phone is a factory unlocked iPhone SE.Hope this helps, thank you for your time.PS. I rated 3 out of 5 for value of the money because at time of writing the same SIM card packet can be bought cheaper with more included credit directly from the website of the provider.