Lingo Reviews 

I have started my Lingo journey a few weeks ago and had a few problems with my biosensors. However, the customer service was fantastic, they responded very quickly and went far and beyond to help me sort the problem and make sure I was happy. I like the app very much and I enjoy finding out how my body reacts throughout the day. It has been a great motivator to help me change some of my eating habits. I am still at the beginning, but I will continue to use Lingo, and recommended it to my patients. It is a great tool to help you optimize your health.

Lingo helped get us better pricing but the overall management of the process was difficult.

Hi bought the Lingo to try and help understand what foods were causing my sugar levels to drop especially when out walking. I love it! it gives me really good results and it's really easy to use. I also knocked mine off my arm, contacted customer service ( Elizabeth) and she was really quick at replying and replaced it without any problem at all, amazing customer service!

Phone was out for about 6 weeks and still got charged for the month! Called to cancel phone service and confirmed that the service was cancelled month before last (may 2025) they still charged me for a month of phone service and the phone isn’t operating. If you like giving money away for free I recommend this service. If you don’t give money away for free. Find a better telephone company!

Appalling company.
Purchased two sensors to last 28 days.
First one fell off so complained to company on day 10, they offered to send another.
Meanwhile the second stopped working on day two, the replacement third one then fell off on day two, the replacement fourth one stoped working within 24 hours.
Throughout I was in touch with customer service.
When I finally gave up and asked for a refund their response was below: they can’t refund because it’s not within 14 days despite my first contact being within 10 days and they expect me to both try the new sensors while sending back the same unopened sensors.
WASTE OF MONEY- AVOID THIS COMPANY

We sincerely apologize but to process a refund for non-transform plans, the request needs to be made within 14 days, and the sensors need to be unopened and returned as outlined in our Terms of Sale:

As such, we will unfortunately not be able to provide a refund in this case as the conditions for eligibility are not fulfilled.

I think there are issues with this companies messaging.
Why do you not know there is a needle involved until you receive the package? Obviously the company has issues with telling you before you buy it. For me this was the start of a poor relationship with fitting the monitor. I wasn't expecting a needle and so I presumed there was a problem with it and it was going to hurt! As a result I flinched when I fitted the system to my arm and the monitor didn't work.
Second try, Lingo sent me a new patch. Unfortunately they didn't send me an alcohol wipe with it and I forgot I needed one. As a result I fitted the monitor, and I was pleased with the results but as I hadn't used an alcohol wipe, it fell off after a couple of hours. I know this was my fault but surely this should be more simple? Why wasn't there a wipe in the second package?? For the sake of the expense of an alcohol wipe I am left with nothing and wondering if I really want to spend another £60 to try again? In my opinion, the whole system is too complicated.

Received my monitor the first one was not able to put on as easily as they make it sound. Immediately gave an error and was told to put a new sensor on. I chose to wait awhile, thank goodness because it started working. Did not stay on arm well had to secure with large band-aide and wrap over sensor. Put 2nd sensor on yesterday and that one never worked. While it was great to review my sugar to start I found the app lack luster and was very disappointed overall. MTorres

I don't have an iPhone so it doesn't give me the opportunity to even try this app. Should offer this to other users

The constant feedback on blood sugar levels helped me tremendously to find out how my body responds to certain foods I thought were healthy, i.e. lentils. I control my behavior in regards to food and exercise much better due to the ongoing feedback.
This is all achieved without pinching myself multiple times per day. I took a star off because the app gets inaccurate after about 10 days. It shows very high glucose spikes which are sometimes 30 points off (159 instead of 127 when I checked myself with a fingerstick). The fasting glucose is also off by a lot (110 instead of 95 checked by fingerstick). This inaccuracy does need improvement. It is also a little pricy. I do like that I do not need to subscribe and still can get it on a month-by-month basis.

MY ORDER CAM TODAY AND WILL NOT PAIR
IV TURNED MY PHONE OFF AND ON AGAIN , TURNED OFF BLUETOOTH AND ON AGAIN. DELETED APP AND REINSTALLED IT, NOTHING IT WORKING. VERY POOR AND I WILL BE ASKING FOR A REFUND.

Have used the Lingo cgm for 6 months I’m pleased with the data it provides, particularly how it’s presented, however there is a major flaw in their Bluetooth pairing process. I have had 4 sensors that have refused to pair, at £59 a pop - and on an IPhone 15 - totally unacceptable. Granted each sensor has been replaced but I’ve had to go through the hassle of contacting customer support and answering the same set of questions and generally having to explain the process I went through trying to pair the sensor as if I was a 5 year old. Am thinking of returning to the more reliable Dexcom CGM.

I received a Lingo to try for free and I was interested to try the sensor. I’m not diabetic but have lost half my pancreas due to surgery so was interested to see if this had any impact of my blood sugars. The Lingo itself is easy to apply. Unfortunately the first one I tried became detached from the sticky pad within a few days. This meant the needle moved inside my arm and was very painful and the Lingo had to be removed. Customer Services were excellent & swiftly sent another. I did however put a large dressing over the second one after applying it to ensure it didn’t move just in case! There is no sterile wipe provided for application- it really should be in the box along. Interesting to see the impact of different food types, exercise etc on blood glucose, if not wholly unexpected. Interestingly for me it highlighted I was having lots of overnight hypos. Not sure I would use it long term but I found it interesting and if you are health curious have a look

I have received Lingo Biosensor as part of Home Tester Club. It's really great idea to be able to monitor how food affects your body glucose. App has some guidance around food and how body uses glucose, etc. But from the beginning.
Sensor application is very easy and it was completely painless for me. Instructions were easy to follow. There is one thing though. Instruction says to clean skin in the place where sensor will be applied with alcohol wipe. There wasn't one in the box and I didn't have one at home. I think it should be provided especially there is a needle piercing the skin. My sensor did last whole 14 days even though they say that some sensors may not last full two weeks. There was one more con at the end. There was nothing in the instruction on how to remove the sensor. Should I peel it carefully or with force ? In one go or what ? There was no word on it but it should be there. Generally I see this product as really cool thing to explore and try. Especially if you care about fitness and health.

This is a useful tool in helping the user view their glucose fluctuations in real time, following consumption of food/drink. Analysis of trends in data is presented in graph form and common themes and data of glucose spikes is also summarised. The device itself is easy to apply to the back of your arm and really does not hurt at all during application or afterwards. It has an adhesive edge so does not easily dislodge during daily life including showering and dressing. I have found it really interesting as a non diabetic learning what types of foods/drinks create glucose spikes and which foods keep glucose more stable. I also found the app easy to download and use, I found that more natural whole foods and a diet of high protein low carbs and low sugar kept my glucose spikes lower and more consistent which is better for my body. I have really enjoyed trying this biosensor although I think the app could be vastly improved to give more detail and a broader functionality for the user Although I didn’t like how most of the listed foods on the app were mostly American

Lasted 12 hours then I needed another one.Started out good not sure any go 14 days. I am going to update what I said,don’t get it from amazon get it from the company, they will take great care of you u,will have a new one the next day. It has helped me learn to eat right!

Firstly, I'm aware of scanners from other people, even though I do not have diebetes myself. I tested this in order to find out exactly where I stood. The video supplied was clear, but I had problems with the first unit. I contacted their customer support and I must say, they were excellent. They took details and shipped a replacement, so top marks there.

Application was easy and painless. Linking to my phone was simple too. It's been good to get an insight into how foods affect my blood sugar levels, thankfully, I have nothing to worry about.

I am finding (after 8 days) that the unit is coming away from the sticky pad a bit at the edges. Water isn't getting in when showering, it's still firmly attached to my skin. But around the edges of the sensor is a bit loose.

The other slight negative (but a minor one), is the app for registering food. There are many things that just aren't listed. Also, its American English, so no peppers, just Capsicum! Good product overall though.

I found the sensor easy to apply using the easy to follow instructions in the box. I liked that the sensor sends information straight to my phone in real time, so it easy to track. The app was quick and easy to set up and use. I learnt quite a bit about my eating habits and how it affects my blood sugar levels throughout the day. If anything could be improved, it would be to have more information around how to use/get the best out of the app.

I have used 2 of the Lingo biosensors. The first one stayed on for 10 days and provided a great deal of information on foods and medications along with the timing that effected my sugar levels. The 2nd one stayed on 4 days and I was beginning to think I had a new way of keeping up with my blood sugar but at $45 a sensor that doen't even last a week - pass

Overall this is a good product for someone who would need to watch glucose levels, not sure what if any benefit I got from it to be honest, it was interesting to see how food’s effects your levels real time. The application was painless and hassle free.

After having several issues with customer service, my Lingo account disappeared today. I have to log in and create another account. Because of having to do that, the sensor I applied about 4 days ago (they last for 2 weeks) is now junk and I have to open another expensive sensor and apply it. I loose about 8 days of use for that sensor. The app measurements were working a couple of hours ago and now, poof..they are gone. Don’t waste your money.