Lingo Reviews 

I constantly had inaccurate readings. I started checking it again the finger stick glucometer and I know there's always going to be a difference but this was ridiculous in the readings.

While using them it was ok but when i asked about changing service because the other EMR systems I was using needed to me to use theirs, they told me I could cancel without penalty. I called and had my office manager call and we both were told the same thing. So I spend the money to get the new service and requested the cancellation from lingo and got a message that I would owe $600 to cancel. When I told them the information I was given by 2 people, all they said was they were sorry I got misinformation. That is crap. When your team makes a mistake and tells someone something then you honor it. As a business owner myself I have had these situations before and I honored what my employee told someone, even though it was incorrect and cost me. Terrible way to do business.

A CGM did nor function out of the box. I bought the lingo sensor which is apparently made by Abbott which also makes The Libre which I have used in the past with varying levels of success. The Libre worked for 10-15 days depending on the quality of the sensor. The Lingo did not make it a day. I contacted them , got the usual bot response and am currently waiting.
update 10/29/26. As promised, they sent the new device and I just received it. This was a fast response. Faster than most companies I have dealt with. I updated the rating since the problem was corrected in a timely manner. I will also say that the employs I was in contact with were friendly and very professional.

Nope, not worth it. The sensor looses the connection all the time. One time I had to wait 2 hours to re connect. It only shows me when my sugars are at 200 or under. So I can’t see if my sugars are higher than 200. Costumer service sucks!!!!
I’ll stick with free style Libre better. I only bought one to try it and I was exited but after all the trouble and not being able to read my sugars when I need it to, I won’t be buying it again. It also reads the sugars about 20-40 numbers difference then when I check with my regular blood test by the finger. It’s not accurate.

Have had several of these sensors now as I find the info really useful. The new app update is even better with photo scanning and nutritional info. Customer service is brilliant. I messed up putting my first sensor on so the applicator was no use and they sent me a free replacement without any quibble and I’ve also had one that failed after a few days and after a quick troubleshoot they sent me a free replacement.

I was moving my couch to get my dogs ball and my lingo sensor came off. Just three days of having it on i was upset but I reached out to the customer service number and spoke with Levi and just gave my name and sensor number and he said that I'll send a new one to me through mail.😀 it came in today not just one sensor but 2 came through the best company so far.

the device is inaccurate. only works on some phones as it needs NFC. falls off without additional bandage, and they will bombard you with spam with no way to stop it. Im currently trying to get their, lack of, customer service to help.

Terrible product. Five out of seven have prematurely failed. Including two company replacement, one of which did not work out of the box. It seems to me that the primary reason for the failures is the adhesive on the arm sensor. They either fall right off, or they partially and impeceptably detach and the probe that goes into your skin comes out. This last one just fell off as I was standing doing nothing. This time I'm going to ask for a refund because they are just too unreliable. Great idea, but unreliable.

The lingo software so pathetic it's expensive CGM and it won't let you look at previous days doesn't work I hope Abbott Labs goes bankrupt... Shame on them for not fixing this problem after all this time. I really don't care if a product is FDA approved or not FDA is not looking out for us anyway

It doesn't read even close to finger pricker

Terrible customer service! My Lingo failed, no one available to answer support. If you post hours, make sure someone is there to support on time!!!!

I have worn the lingo for several months now, originally I would have given five stars how ever the last 4 in a row that I have bought have not worked. I bought one as usual from Walmart applied it as normal and it left the needle in the sensor in my arm, it then would not connect. I contacted support and they did send me a new one how ever even tho that one applied correctly it would not connect either 2 weeks later I bought another one. Once again applied correctly it would not connect. I purchased another one lol and behold would not connect. Today I purchased what will be my last one making the total of five in a row including the one they sent me. Once again needle stayed in sensor in my arm and keeps giving errors. Very disappointed I'm now 200 dollars in the hole. I'm a type two diabetic with controlled numbers and no medication so my insurance won't cover a normal cgm so I had been using this to have a general idea where my sugars were. Really wish lingo would get it figured out.

We weren't even able to set our sensors up and customer service offered no support and said that we could not get a refund even though they were unused. Very frustrating and money wasted.

I have bought about 10 lingo CGMs. Of those 3 did not complete the 15 day period: 1 was 3 days short, the other two quit at 7 and 9 days into the monitoring. I like the concept. I am prediabetic, I compared it to my contour next and it is within parameters. I did get a hold of Lingo customer service, but they are only sending one replacement. Another issue that I have had is the tape doesn't last and offer additional tape at a cost, seriously, why? Send a alcohol wipe, and make the dressing better for the lingo sensor or provide additional support tape. As a prediabetic, I like the concept, but I don't understand why the insurance game. I would rather have Libre 3 plus. Two stars because Lingo, quits working early, and because I have to add extra tape.

Is this company a scam company.
Product stoped working after a couple of days.
The computer (presumably) then just sends out the same automated reply on contracting them several times.
Avoid

A Total Legal Scam – Dexcom & Lingo Are Both Flooded With Defective Sensors

Do not waste your money on either of these over-the-counter devices. I have tried both, and they are both running a legal scam where they ship defective hardware and then completely ghost you when you try to get a replacement or refund.

I tried Dexcom right when it released, and it was absolute garbage. The sensors would only work for 1 to 5 days max before hitting massive errors. Their customer service team completely ghosts you, even if you manage to dig up and submit the correct serial numbers.
Because Dexcom was so bad, I switched to Abbott's Lingo. However, starting this year 2026, Lingo has completely broken down too. Every single sensor I have tried recently has stopped working properly, ending early within just 1 to 3 days. Not a single one of them lasts anywhere near the promised 14-day mark.

Suddenly a replacement link appears in the app this month. Even their "replacement promise" link is a total joke. The form explicitly forces you to answer: "Do you still have the biosensor available to return using a prepaid return kit?" It is a complete trap. If you say no because you threw away a used device that was already stuck into your skin and covered in blood, they can deny your claim. They literally expect you to harvest biohazardous waste off your own body and mail it back just to get the tracking days you already paid for.

Both Lingo and Dexcom have mobile apps that show your full device history, proving the sensors are erroring out or ending early. Yet, their online customer service forms demand a specific serial number that disappears from the app the moment the sensor dies. It is a complete trap. The serial number is printed on the physical BOX, so you are only lucky if you happen to keep the trash. But even if you save the box, type in the number, and successfully submit the form: THE GHOSTING STILL HAPPENS. Neither company replies to emails or app tickets.

They are both happy to take your money upfront, but the moment their cheap hardware fails, you are entirely on your own.

I ordered two devices both of them were worst in terms of usage, readings and the accessibility. It is not compatible with many of the android devices which is a big set back. The readings are horrible. Shows around 50 to 80 points difference. I would never buy this again.

While I was reasonably happy with the data collection and ease of use of the lingo App, I have had several problems with the bio sensor. If there is a problem on a weekday the support is good but if at a weekend it isn’t. You cannot speak to a real person it’s all online which I loathe and with arthritis in my fingers it is quite a challenge for me.

Absolutely worthless product. Why? Because it’s horrendously unreliable, and can lead you to make wrong decisions with potentially disastrous results. If you’re using this product you absolutely must have and use a finger prick glucose meter to verify the lingo readings. What you’ll find out is that they’re insanely off, reading, in my case, 50-80 lower ALL THE TIME, as compared to a normal meter. And I use two different meters and the differences between the meters is usually about 10 high/low.

If I could give it a zero I would I purchased this to be able to use it and I have not been able to get it to send me a code. I have done that numerous amount of times so I cannot even set it up. I’ve contacted their service area and nothing. What a horrible waste of money.