Hellolingo UK Avis 

I used a Lingo CGM for 2 months just to monitor how my body responds to various foods. I had no problems with anything at any time. It was painless to apply and the app worked perfectly. It was a really useful and informative exercise and if I use a CGM at a later date I would use Lingo again. Delivery of new sensors was also always fast. I did cover my sensors with CGM plasters that I purchased from Amazon which may have contributed to the fact that I had no problems.

After being told I was pre diabetic I took a deep dive into all the options to rectify this situation. Personally I concluded that wearing a blood- glucose-monitor to try figure out what did and did not affect my glucose would be the best way for me to physically see what was happening. I ordered a 2 pack trial Lingo set to start with and had some issue with loading the 1st cartridge and applying the sensor. (Normally not an issue, the process is very simple and not painful at all )
Their support department could not have been more helpful ! They also replaced the cartridge without charge. A few weeks later one of the sensors came off when I caught it on a cable at the gym … same again, they replaced it without hesitation or charge, not even delivery costs !!! One more came off in the shower, having not quite lasted for the full 2 weeks (it had 3 days to go) Same again a replacement arrived within 2 days free of charge! Singularly the best, most helpful and polite customer service teams I have dealt with and the most positive customer service experience EVER !

Thanks guys and Lingo for your super helpful attitude and that support you offer with your Bio Sensor devices - it’s new to most of us ! The sensors themselves served me extremely well! Now I can keep on track of my blood sugar, make the best choices for food & see exercise needs and timing better to keep me within normal ratios !

I have a much better understanding what helps or hinders my glucose levels ! Helpful to stop those spikes going too high ! So glad I tried this !!! Amazing company and product !

1st one didn’t work, got it replaced, 2nd one lasted 12 days, the replacement lasted 2 days. Complete waste of £100, still very much in its infancy. Would of gave it 0 stars but you have to give it one.

Top customer service and really good content

Lingo is a great system and has helped me beyond words to monitor my glucose levels. I recently had to contact customer services about my bio censor delivery. The team were very helpful and managed to sort out my delivery and it arrived as promised the next day. Thank you for great customer service!

Good way to understand what causes glucose spikes and how to manage blood sugar levels. I did it for four weeks and now know what to eat less of or avoid.

For me, this is the best route to sustainable weight loss and general good eating / exercise habits. The customer service is also brilliant. Wouldn't hesitate to recommend.

It’s really good but really expensive

WI’ve placed nearly 10 orders with Lingo in the past without any issues, but my recent experience has been extremely frustrating. My latest order (GBL624379489) was marked as delivered, yet I never received it. After reaching out to customer service, the issue was escalated internally( tier 2 level), but over a week has passed without a clear resolution. I’ve followed all their suggestions, including checking with neighbours still no parcel.
What’s most disappointing is the lack of accountability and the slow communication. I hope Lingo takes this seriously and resolves the matter promptly.
Update: 24.07.2025
After I posted my review here, a customer service representative contacted me and informed me that my product had been lost within their own delivery system, and that a replacement had been shipped.
Two days later, my package arrived; however, when I opened the box, there was only one biosensor inside whereas the original package (which had been lost) was supposed to contain two sensors as part of a one-month subscription.
I contacted the same representative again, explained the situation once more, and requested the second biosensor. Three days later, the second sensor finally arrived.
As you can imagine, I had to go through a lot of hassle just to get replacements for an order they had lost themselves.

On my 3rd lingo now and I’m very very impressed, it’s helped me detect spikes without guessing and I feel I’m more aware of my type 2 diabetes and how I need to control, the device truly sticks, it isn’t going anywhere once on and the app is easy to use

First lingo lasted 14 days the second one was disappointing only lasted a little over a week. They are too much money to purchase and not work as long as they are supposed to do. When working they helped me understand what spikes my blood sugar and I was a lot more focused with my food. Controlling my blood sugars very well. But unable to afford £99 for I’ll say up to 28 days of monitoring.

The sensor worked well and was easy to apply although I had used one before .
The support team were very responsive and it was possible to discuss things with the support team via a phone call not just e mail .
the lingo count seemed artificial and for me it was very difficult to influence. This may have been my rubbish glucose metabolism as I am prediabetic and I was already doing all the things they recommended prior to using the device. Only by prolonged fasting ( not something I wanted to do as I am already thin) or exercising continuously ( like a long distance walk) rather than anything strenuous was I able to keep scores down which is not practical in real life. I felt the advice was geared to people who have sedentary lives and are possibly overweight. The team just said my spikes were normal which wasn’t useful as the scores were high and that was irritating. Overall I found it instructive but rather stressful. The second sensor stopped working a week before it was due to stop after i had been climbing. They say they will replace it but so far they have not. You had to supply lots if information for them to consider if they will send you another. Seemed strange as they say they will replace sensors that don’t last the length of time you had it. Mine just became dislodged so wasn’t really a fault if the sensor,
I think this is a very useful experience but for me altering my glucose metabolism seems to be extremely difficult. May get one from time to time . For me I felt the lingo program was altogether simpler than Zoe as Zoe is focussed on microbiome and increasing the number of vegetables you eat which I was already doing quite well. I went swimming with my sensor and just put a plastic cover on it which you can get online. It would be useful for them to provide one . Overall I think this was useful but very challenging . I came away from it feeling as if I had failed despite following all the advice to the extent that I think it may be impossible for me to do anything about my glucose metabolism except worry less!!

Excellent customer service resolving issues, but every device has failed at 10 days. I think it happens when the adhesive wears and probe lifts/moves. I don't believe you could regularly swim with this. I do spin and shower, those are the only pressures I put it under. I like the product and the info, puts me off eating carbs though even good ones. Doesn't spike with wine and chocolate, not sure if that's good or bad…

Lingo has been great for last 4 weeks. Trial to see what foods trigger a response and how my body responds. Had no issues with the sensors worked well for 14 days each. App simple and clear

Overall I think the product is good in the sense it does what it's supposed to - it takes real time readings of your blood sugar. However, I think the aspect that is lacking, that Lingo says it does, is the coaching and helping you to understand what to do with the blood sugar readings. Explanations of things are limited and rather basic. It would be nice to have more insight into WHY blood sugar is high at certain times of the day or due to certain foods and then WHAT to do about it. For example, the app repeatedly told me my blood sugar was highest in the early afternoon after lunch - great. So I worked to eat foods at lunch that were low GI and balanced with protein and veg. But despite this, no matter what I did, my glucose would still spike. Why is that? No idea. Would've been great to get insight from the app especially as it's advertised to coach you through things like this. I felt like I got insight into what was happening in my body but no guidance into what to do about it.

I complained weeks ago that they're taking money from my account and have not refunded. They wrote me an email that they will refund but never refunded the £600 they owe me. It's a sham

Excellent piece of kit , very informative video on how to set up, apply, and easy to use . Information given from disc was useful and informative, lingo did exactly as was supposed to, could be a life saver

After an initial failure of two biosensors, quickly replaced by Lingo, the biosensors worked brilliantly giving an idea of the blood sugar situation.

Lingo products - beware they keep taking money from your card even if you return the product and you keep asking them to stop. They come up with the silly excuse that you subscribed for a year and they cannot cancel it. So even if you return the product, they keep charging you and sending you renewals that you do not want. They never refunded me although they told me that they will refund within 10 days. All in, they owe me over £900 which they never refunded and they keep taking money off my card for a product that I returned and do not want.

Overall I think the product is very good in keeping you in check regarding your blood glucose. It prevented me from pricking myself constantly which is a big plus. I have tried another brand and Lingo is definitely better as it updates your reading every minute (unlike the other brand that does it every 15 mins). It was easy to set up and helped me identify things that spike my blood sugar like an oat milk latte.
It’s very easy to use and the app allows you to add activities and food very easily for monitoring.
So overall it’s a very good monitor but the only down side for me will be the price - it’s quite expensive for someone who needs to use it regularly.