Lingo Reviews 

I am prediabetic and using Lingo glucose monitor for two months.
The Lingo count number is a bogus number...it doesn't make sense.
They assign numbers based on what? Who gives these numbers?
I will switch to a different glucose monitor.
For improvement they should add a feature of taking picture of the food and recognize it.

Biosensors do not work and the company was unresponsive to emails

I have previously used Dexcom and came to Lingo with enthusiasm now they have an android app. Unfortunately the app experience has been significantly disappointing in comparison.

Importantly, the usability issues I encountered could not have been assessed without opening and using the product. A CGM sensor cannot be evaluated through packaging alone - it requires wearing the sensor and using the app in real conditions. I had no reasonable opportunity to discover these problems before opening the sensor.

My first concern is with the points system. Your algorithm assigned points to aspects of my day as though something negative occurred - when in fact every way my body responded was healthy, expected, and well within normal range. The dawn phenomenon, gentle post-meal rises that returned promptly to baseline, and responses to low-impact exercise were all flagged negatively. At no point did my glucose exceed 7.8 mmol/L or rise by more than 1.7 mmol/L. For someone with a good understanding of blood sugar regulation, being penalised for normal physiology is demoralising and misleading, and risks causing unnecessary anxiety in users who don't have that knowledge.

My second concern is with the usability of the graph. The event markers for food and exercise obscure the curve rather than enhancing it. When you tap a marker, it does not show you what the event was - it simply takes you to that point on the graph. You then have to scroll down through all logged events, find the one whose time matches the marker, mentally note it, and scroll back up to the graph to cross-reference. This makes the core function of a CGM - understanding how food, exercise and lifestyle affect your glucose - unnecessarily difficult and time-consuming.

There is no ability to zoom in on the graph, and no way to view event details and glucose data simultaneously. The interface feels as though it was released before it was ready for Android users.

As someone who has used Dexcom, I can say directly that this experience is significantly worse. I would like my money back.

You should not advertise 2 day delivery if you cannot deliver. It doesn’t say except for holidays and weekends. I ordered a sensor on 5/22. It is now 5/26 and have not received it. When I called to check I was told that Monday was a holiday and ups was closed. They darn sure were not closed on Friday and Saturday.They didn’t hesitate to take the money instantly on Friday.

The first sensor came off in 3 1/2 days. The second sensor quit working less than 48 hours after application. Very poor quality.

Had purchased their 6 sensor subscription April 1 from their website, after trying 2 sensors purchased from Amazon. The Amazon sensors worked fine, the ones from Abbott themselves, not so much. Over the course of 6 weeks, 3 of the sensors did not monitor well, nor did 3 of the replacements. Just finished cancelling my subscription. They would not issue a pickup for the 3 sensor I still have. And customer service does not speak very good, or understandable English. Company not concerned about monitoring one’s health

My sensor keeps saying "signal loss" and to turn off and then turn on Bluetooth. It says if that doesn't work, turn phone off and then on 5 minutes later. These did not work. I uninstalled and then reinstalled the Lingo app Nothing but the same old. I emailed customer service with no luck. This is a big waste of money. I was hoping this app would work as well as the Freestyle Libre 3 plus app, made by the same company. No such luck. Lingo sucks.

I have bought 8 Lingo CSM and only 5 worked/stayed on. My latest purchase of 2 from Amazon only one even had the monitor in the sealed box. Trying to get a replacement is impossible with them asking waay too many questions and needing way too much proof. Probably a good option ruined by not standing by faulty ones.

I purchased a months worth of Lingo sensors. Every single day since I put this sensor on the glucose reading is off by at least 20-30 mg/dl , always lower then my actual fingerstick reading! How can we as consumers really notice a trend or make corrections based on these unreliable sensors. Especially at this price. Its more accurate and cheaper to perform fingersticks and track on a seperate app. This Lingo sensor is crap, I have been on dexcom and Libre 3 before which are much more accurate but they rip you off on higher cost. Plus this meter only will give a low reading of 55 and a max reading off 200. What a waste of time and money! Dont buy.

It’s actually a very good product that provides great data and insights, but…..

1. When a biosensor had obviously failed I had to spend almost an hour on a call to be told the biosensor had failed so a new one would be sent. Tbf it arrived quickly albeit with no tracking or other info.
2. I tried to purchase a 3 month plan but the payment processing failed on a card I use for everything.
3. I couldn’t place the order again as it was showing as pending in my account and I couldn’t cancel it.
4. Spoke to their support team and after being asked for lots of irrelevant information and suggesting it was my card that was the problem I gave them the solution: cancel the order and I will place it again, new. They agreed and asked for 15 minutes as thus was such an unusual error.
5. They didn’t do as agreed but have kept trying to take the payment without my involvement.
6. I will never use this company again. It’s a shame as when the biosensors work they are fantastic.

UDATE: they just tried to charge me again and their email addresses don’t work.

Everyday this thing stops monitoring. There are hours where I have no glucose reading at all. It will also change the number. Glucose will go down to say 67 then go back up to say 72 but when I look back the drop to 67 is completely gone. Also when I check with my meter the glucose reading is very different and even after waiting an hour (because there is a 20 min to 1 hour delay with CGM's) the CGM never shows that reading. So I dont think this thing is very accurate. I also had an issue with an order were my CGM was undeliverable and sent back to Lingo. I spoke with someone 3 different times. After a month of trying to get my money back they tell me they cannot refund my order because per thier policy the can only refund the first order. Absolutely rediculous. This is while they have had it back in thier possession for a month. They finally sent it back to me after talking to one last person. I honestly just wanted my $95 back but they refused so I had no choice but to have them send it to me. I will never use this company again and I would advise anyone else to look elsewhere. This is made by Abbott and I think there are other brands they make so make sure its not made by Abbott.

It loses wifi annoying frequently. Have had a few stop before the end of two weeks. The basic functions are good, the rest are junk, fluff , basically useless . If you are looking reasonably reliable tool to measure glucose, this fine, over priced, but I’m a shareholder.

I’ve used CGM‘s for a long time in this product has been consistently inaccurate. I placed it on myself today for the first time. It regularly reads significantly lower than my actual blood glucose.

For example, my FBS was 117, while the CGM showed the values as low as 54, 65 and 80. This is not a small difference. It’s a clinically significant gap.

This isn’t a one time issue. This has been happening all day, since I placed it on the back of my arm. On the other arm, I do have a Dexcom Stelo for comparison, and man-o-man; what a significant difference between the two. The level of an accuracy for the Lingo goes beyond normal variation.

Because of this, I’ve had to rely on my Dexcom and fingersticks instead. I wanted to switch to Lingo because the price. But, like they say, you get what you pay for!!!!

I CANNOT recommend this product based on my experience today, especially for anyone who needs dependable glucose readings.

Irritating music and too many silly fruit machine like interruptions. Probably ideal for a 10 year old kid

I bought a month's worth of Lingo CGM. The sensor would lose signal CONSTANTLY.
Brand new sensor applied; STILL LOSING CONNECTION CONSTANTLY.
Email customer service at least a half dozen times-- have gotten ZERO responses.
I will not buy this product again. Total waste of money, and risk to my health.

I have had nothing but problems. UPS lost my order so after a while, Lingo was to send me 2 replacement sensors, they sent one instead of 2. The one I received worked for less than 3 hours. I contacted them to send out a replacement for the one that doesn’t work as well as the one, I didn’t receive. I got my box today with only 1 sensor in it. I give up! I am requesting a refund and will try another company. My neighbor got her sensor the same day as I got mine. Hers worked for half a day so she is now dealing with trying to get a replacement or refund as well.

Recently got a months worth of this because of unexpected high fasting and post prandial blood sugars despite not being overweight.
Really easy to use and useful to see what specific foods and cortisol levels (stress and when you wake up) affect your blood sugars
The only thing I do not understand as is not explained well if the Longo count . You seem to get count added for no reason so it is so easy to go over target even whilst eating healthily . A small treat of 3 squares of chocolate resulted in me having 32 points added to count !! ( target for day is 60 !!! ) . Rest of day was very healthy food , low to zero carb yet I go massively over my count . So do not understand this at all .
Overall useful just as a bit of a test but wouldn’t use all the time, firstly because it could lead you to be comes little to focused on zero carbs and secondly because it is very expensive working out at £90-100 per month .

Not a good product. Avoid. Sensor was disconnecting frequently and after 5 days fell off completely. After reconnecting sensor will show very high values. Useless. I got 2 sensors on a deal and I requested refund but support kept sending "tips" and "helpful" messages but no word about refund. Thinking of taking them to court. Previously I was using another manufacturer Sensor without any issues. Lingo was a bit cheaper but it is waste of money.

I have used Lingo GCMs for about four months. During that time, 3 of the 8 sensors failed within a day or two of application. And the company will not refund or work with me to get refunded. They know their products are faulty and have tried to make me provide a ridiculous amount of information just yo replace products that are already not working. The software is great, but if the sensors don’t work, it’s a no go. I’ve used Nutrisense and Freestle Libre as well. Both are far superior to Lingo. Customer service is appalling—it takes them 3 weeks to reply to a help
Message, and then, the “help” is performative with all issues going unresolved. Try a different product. This one is awful.

Absolutely dreadful customer service. Ordering system hasn't worked, says try later and been doing that for 3 weeks!!!!!
Tried the chatbot waste of time.
OK email? No, it bounces
Telephone call then? Can't help cuts you off. Try again? I swear the agent was drunk or high. Still no help.