ZIM User Reviews

Top reviews

Unfortunate problems, deteriorated service

Made purchases in 2024 with no problems. However 2025 July, I had problems purchasing a new eSIM, it was cancelled twice because of local operator issues. Also activation of eSIM wasn’t so smooth, had to restart device, manually select the operator so on. And now trying to top up the eSIM and getting errors again. It’s a shame the service deteriorated since last year dramatically. Also the data speed struggles, WTR is provider and so slow generally where there should not be a speed limit I was told, my partner through other provider 1Global using the same local network Turk Telecom has no issues next to me. At least the support team is trying to help and solve the problems but would be great if they solved these issues and made things easier, smoother and more reliable.
Show more

Latest version 4.0.2 crashed

I just install the latest version 4.0.2 of n an IPhone (IOS 18.5) and the app open and close immediately

Scammed me with no response

Was a avid user of the app but I bought an eSIM the other day and it told me it hasn’t worked an the system didn’t put it through so I re bought it and got a very confusing error message. But then the money was taken out of my account both times. I was trying to do this before my flight and had to just wait until I got I got the country and sort something out then. I was automatically referred to a chatbot that just didn’t respond and then closed the chat. Several hours later I then got an email saying the eSIMs came through after they said there was an error, I have emailed them as per their refund policy and haven’t heard anything back but will update IF I ever do . Really disappointing as this was my go to eSIM app bu
Show more

Data scam

I just landed in Turkey and only used Google Maps to navigate to my resort, yet somehow, I’ve already used 2GB out of my 20GB allowance. This makes no sense! Back in the UK, I stream movies and series regularly, use tons of data, and never go over 30GB in a whole month. Something about ZIM eSIM’s data tracking feels completely off. If you’re considering using this service, think twice it doesn’t add up, and you might burn through your data way faster than expected. Definitely wouldn’t recommend.
Show more

Stopped working

My India plan worked for 3 days then stopped. The only way to contact ZIM is through their chat with very long waits for each reply and requiring WiFi. I’ve ended up getting a new sim with Yo which works fine.

Great when it works and eSIM is not removed

Don’t buy in advance when there are special offers - the eSIm often disappears from my account wallet before I come to use it.
Support is patchy - it was good but now I don’t get responses to emails and chats are closed without contact with myself.
However when you use “ In Country “ the sim works well and speeds are good ( I’ve used all over Europe and US) after a short settling in period where the link is 4G then moves to 5G.
Setting to “automatic “ goes not always give the best local provider - play around with this setting to pick the best local provider
Show more

Fake Unlimited

Die Unlimited Pakete sind nicht zu gebrauchen da sie gedrosselt werden und es wird nirgends erwähnt. Vorsicht, das ist pure Abzocke!! Kunden werden in die Irre geführt

Saves a lot of money and time

Saves time cuz you don’t gotta go to a shop n buy one. And you’re getting real good deals while potentially not getting ripped.

Couldn’t activate sim in Turkey

Absolutely horrible doesn’t want to activate no connection what so ever currently having a hard time should used another eSIM provider like airgo

Worked perfectly until recent “updates”

Purchases disappeared from my wallet with no refund

US Norwegian and Swedish purchases stopped working with data limit not reached before expiry date.

UK purchase which was noted as Vodafone would not connect to their network.

Now Customer Service archiving and closing my chats without contacting myself.

Be wary!
Show more

Clifford Van Ristell

Amazinggggg. Fast and efficient. Thanks Zimmmmmm!!!!!

Not working

App said thank you for payment. Connection activated. Esim does not get data connection. 🤷‍♂️

Support to be improved

As long as it works it is ok, but when it doesn’t , the chat support is not good. It closed very quick so you need to keep watch .

Great eSIM travel app!

Very easy to purchase and set up the eSIMs. Nice user-friendly interface to track the plan usage and expiration date. And at least for my current destination the prices were cheaper than other apps I checked. The coverage is very good.

Response from developer

Thank you for your positive feedback! We're thrilled to hear that you found the eSIM purchase and setup process easy, and that you appreciate the user-friendly interface for tracking plan usage and expiration dates. We're also glad to know that our prices were competitive and the coverage met your expectations. Your satisfaction is our priority, and we hope to continue providing you with great service on your travels. Safe journeys!

The Best Travel Sim Ever

Seamless travel sim experience, highly recommend it.

Slow connections

I do appreciate how well this app works short term, Unfortunately though, I do tend to use a lot of mobile data for various things, so at a certain point the speed is severely slowed down.

Downgrading the speed of internet to 512 kbps is makes unlimited plans highly not worth it as opposed to other esim providers who don't throttle connections.

The 1gb and 5gb plans and all all work very well though, it kind of depends what you are seeking for internet.
Show more

Response from developer

Thank you for your feedback. We're glad to hear that the app works well for you in the short term and that you find our 1GB and 5GB plans effective. We understand your concerns regarding the speed reduction on our unlimited plans. Your input is valuable, and we are continuously working to improve our services. We will take your feedback into account as we strive to offer better options without compromising speed. Thank you for choosing our service and sharing your experience.

app under maintenance almost always

half of the time, the app is under maintenance.

Response from developer

Thank you for your feedback. We apologize for any inconvenience caused by the frequent maintenance. We're working hard to minimize downtime and improve the app's reliability. Your experience is important to us, and we appreciate your patience as we make these necessary improvements. Thank you for bringing this to our attention.

Recommend

I've been using the ZIM app for my international trips and it's really simplified the way I use data abroad. The app is intuitive and makes it easy to select and activate eSIM plans without any hassle. Prices are competitive, which has saved me a lot on roaming fees. It's a practical tool for anyone looking to simplify their connectivity while traveling.
Show more

Response from developer

Thank you for your fantastic feedback! We're thrilled to hear that the ZIM app has simplified your data usage during international trips and that you find it intuitive and hassle-free. It's great to know that our competitive prices have helped you save on roaming fees. We're committed to providing practical and efficient connectivity solutions for travelers like you. Safe travels, and thank you for choosing ZIM!

Brutal

Súper fácil , la utilizo para viajar sobre todo!

Response from developer

¡Gracias por tu comentario! Nos alegra saber que encuentras nuestra app súper fácil de usar y que te acompaña en tus viajes. ¡Esperamos seguir siendo tu opción preferida para mantenerte conectado en el extranjero! ¡Buen viaje y gracias por elegir ZIM!

La mejor aplicación de sin que he usado nunca!

Súper necesaria para viajar, te facilita mucho las cosas y funciona muy bien. Súper recomendable
Me ha encantado.

Response from developer

¡Muchas gracias por tu comentario! Nos alegra mucho saber que nuestra app te ha facilitado tanto tus viajes y que haya funcionado tan bien para ti. Agradecemos tu recomendación y nos encanta saber que estás satisfecho con nuestro servicio. ¡Buen viaje y gracias por elegir ZIM!👌