Terrible
Terrible customer service, no solution to anything, I got a service with them and the eSIM doesn’t even activate and they made me call to the support line and got not help
Worst cellular experience ever!!!
I paid for the service last night installed the SIM, ported over my phone number, and when I wake up in the morning, I can’t make any phone calls and I have no Internet connection. I call customer service and they tell me my phone number was not ported even though I made sure to do it the night before. My previous cellular service ended last night so I can’t switch over my phone number. And I can’t make phone calls with the new number. The rep tells me to go into my settings and reset my cellular network and of course I don’t know the password to do that. Because who remembers that password? So now I have paid for a cellular service that I can’t even use and customer service is no help at all. I put in a service ticket and nobody has called me yet.. What a nightmare. run from the service. Run for your lives!
Update I have had service now for two weeks and two weeks and they tell me my unlimited Internet is out and all of my Internet services shut down immediately and won’t run at all! This company is a complete and utter scam and I would highly recommend that you go back to one of the big three and pay more money because these con artists aren’t providing a service they’re spreading fraud and they’re getting away with the defrauding millions of people
Update I have had service now for two weeks and two weeks and they tell me my unlimited Internet is out and all of my Internet services shut down immediately and won’t run at all! This company is a complete and utter scam and I would highly recommend that you go back to one of the big three and pay more money because these con artists aren’t providing a service they’re spreading fraud and they’re getting away with the defrauding millions of people
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Worst cellular experience ever!!!
I paid for the service last night installed the SIM, ported over my phone number, and when I wake up in the morning, I can’t make any phone calls and I have no Internet connection. I call customer service and they tell me my phone number was not ported even though I made sure to do it the night before. My previous cellular service ended last night so I can’t switch over my phone number. And I can’t make phone calls with the new number. The rep tells me to go into my settings and reset my cellular network and of course I don’t know the password to do that. Because who remembers that password? So now I have paid for a cellular service that I can’t even use and customer service is no help at all. I put in a service ticket and nobody has called me yet.. What a nightmare. run from the service. Run for your lives!
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Calls won’t go through
I’ve tried to use Tello a few times this year but everyone calls drop or go out
Bad experience
No support
International calling
Great audio quality
Multi-line support? Icon weirdness.
I just switched to Tello and this all is “fine” but nothing to write home about. However I have two things I want to write about today.
1) When this app is in a folder, iOS shows the light icon. But when the folder is opened, it shows the dark. Obviously this isn’t anything to knock a star over, but it’s weird and the only app I have that does this on iOS 26.x.
2) I first ported my secondary line to test out the service. Once I was happy I ported my primary number. However in the app I can only see details about the first line I ported - which again is just secondary which I barely use. I can’t figure out how, if even possible, to see my other line. That makes this app unfortunately unusable for me, and hence the 2-star rating. Fix this and it’ll be a 4-star just fine app. Thx!
1) When this app is in a folder, iOS shows the light icon. But when the folder is opened, it shows the dark. Obviously this isn’t anything to knock a star over, but it’s weird and the only app I have that does this on iOS 26.x.
2) I first ported my secondary line to test out the service. Once I was happy I ported my primary number. However in the app I can only see details about the first line I ported - which again is just secondary which I barely use. I can’t figure out how, if even possible, to see my other line. That makes this app unfortunately unusable for me, and hence the 2-star rating. Fix this and it’ll be a 4-star just fine app. Thx!
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Response from developer
Dear user, Indeed the app doesn't offer the option to manage multiple lines. Our developers are currently working on a fix for this. If there is anything we can do to assist you, please let us know. Your feedback is valuable!
Good App, Poor network
Good user interface with an app that is easy to manage, but the mobile service ultimately falls short where it matters most. Relying on T-Mobile’s network (like competitors like Mint, Ultra Mobile), coverage drops off sharply in remote areas and suffers from frustrating dead zones even within major city cores. While the customer platform itself is great, the unreliable signal and spotty connectivity make it tough to recommend for anyone needing consistent nationwide service.
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Impossible to login
No matter if I request an OTP or use the OTP from the main website it doesn’t work. Requesting one always fails. If I use the one on the website it acts like I’ve not entered my number. I’ve tried entering the number in so many different ways as the developer hasn’t bothered to standardise the format. It allows you to enter any character, special symbol or digit in the box designed for just a phone number.
I’ve already linked my Google account and that fails to login to the mobile app.
Basics of just being able to login isn’t possible.
I’ve already linked my Google account and that fails to login to the mobile app.
Basics of just being able to login isn’t possible.
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Response from developer
Dear Aaron, We're very sorry for the inconvenience. We really appreciate you bringing this to our attention. We would like to investigate your complaint. Please share your contact details with us at https://www.tello.com/contact so that we can resolve the issue. We'll be waiting for your reply.
2FA should be added
Jackers are on the rise and tello.com is vulnerable without double layer security. I hope it is solved soon to keep my credit card permanently unlocked.
Does not provide reliable data
I will NEVER use this phone service again. I wasted time and money on a phone plan that barely worked. I paid $25 for unlimited data, talk, and text, and still had to spend an additional $15 for data. When I reached out to customer service they said to spend more money.
The reviews must be fake!!!
I’ve had Tello for over a year and don’t use it much. However, I bought a new phone and needed to switch the ESIM to my new phone.
Unfortunately, I didn’t do that before setting up the new phone.
Reaching this company via phone which is the ONLY way I can reset my pin is virtually impossible!!
You’re put on hold and then the phone automatically disconnects after 15mins.
I’m not sure where these 5 star reviews are coming from!!
Unfortunately, I didn’t do that before setting up the new phone.
Reaching this company via phone which is the ONLY way I can reset my pin is virtually impossible!!
You’re put on hold and then the phone automatically disconnects after 15mins.
I’m not sure where these 5 star reviews are coming from!!
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Error When Displaying Information
Unable to display some information, such as orders, personal info, etc. Connected to Wi-Fi but eSIM isn’t working at the moment, so it may possibly have something to do with that. The information displays successfully on the Tello website.
Bravo!
The word “transparency”should be synonymous with Tello. Everything in the app is so well laid out. Nothing is complicated with Tello, on the app as well as it’s website
Phone call UK to USA
Lots of background noise during the call. Made it hard to hear the other person on the call.
Don’t get
0/10 service is the worst service don’t waste your money
NEVER works from overseas
The app connection is horrible. Delays, dropped calls, noise on the line, etc.
Spam City!!!
Wow, the instant I signed up for Tello I was flooded with Spam calls and texts! Non stop! It’s a good price but not worth being inundated with Spam and Scams.
Nothing but issues
Didn’t port number lost that and every time it renews subscription it takes them a week to figure out what went wrong. And get my phone working right good luck if you try them
Affordable and basic
First, I’d like to talk about the app. It could definitely benefit from defaulting to the dashboard right away, so I could see the renewal date and usage better than on the first screen. Then on the website I can see and manage all the numbers for my family, but on the app, I can only see mine. Lastly, it would really be nice to be able to see a usage over time chart both in the app and on the website.
For the phone service, it continues to be affordable, though they recently they removed several useful usage, tiers that had made it much more flexible and worth the money every month. If they end up narrowing the choices even more then there won’t really be an advantage to Tello over another service like Mint.
For the phone service, it continues to be affordable, though they recently they removed several useful usage, tiers that had made it much more flexible and worth the money every month. If they end up narrowing the choices even more then there won’t really be an advantage to Tello over another service like Mint.
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