# Dexcom G6 — user reviews > 285 indexed App Store user reviews of Dexcom G6 by DexCom, Inc., rated 3.10/5 from 9,014 ratings. - Source: https://appshunter.io/ios/app/dexcom-g6/id1209262925/reviews - App overview in markdown: https://appshunter.io/ios/app/dexcom-g6/id1209262925.md - Rating breakdown: 5★ 2,954 · 4★ 1,276 · 3★ 1,160 · 2★ 1,233 · 1★ 2,391 ## What do users think of Dexcom G6? Overall sentiment: neutral **Pros** - 🚀 Continuous glucose monitoring - 📈 Helpful for managing diabetes - 🤝 Shares data with others - 🔋 Long-lasting sensor **Cons** - 🔊 Overly loud alerts - 🔄 Frequent signal loss - 🤯 Inconsistent accuracy - 📱 App crashes and bugs - 🕰️ Short sensor lifespan **Commonly reported bugs** - App unable to reconnect after signal loss - Calibration issues and errors - Notifications not working as expected **Most requested features** - Add notes for carbs and exercise - Customizable alert settings - Improved Apple Watch integration - Dark mode option ## Newest reviews (11 of 285) ### 4/5 — Discontinued but served me well through its lifespan *2026-07-15, version 1.15.0* Sad that these got discontinued, it was a huge breakthrough in diabetes management technology and had a good experience from 2018 to 2026. ### 2/5 — Unreliable *2026-06-13, version 1.15.0* Unfortunately after 3 years of use this has been more of a challenge then a help with managing my blood glucose. After calibration it will have its periods of inaccurate readings and many sensor failures. When it works it works but be aware that the sensor might randomly fail . ### 2/5 — Apps issue *2026-06-07, version 1.15.0* Apps not allowing to create account after entering all data ### 2/5 — No Calibration in G6 *2026-05-27, version 1.15.0* Readings can be wildly inaccurate because the G6 cannot be calibrated. I spent 1.5 hours on the phone with your tech support, speaking to 5 people before I finally got someone who admitted to me that the G6 Pro cannot be calibrated. The sensor I am wearing now is regularly off by 20 or more points. ### 2/5 — No Calibration in G6 *2026-05-21, version 1.15.0* Readings can be wildly inaccurate because the G6 cannot be calibrated. ### 3/5 — Sometimes I'm Scared *2026-05-12, version 1.15.0* Why? Because sometimes the alarm doesn't sound as it should. It's especially scary when I'm low and sleeping. I don't change my phone settings so that's not the issue. When it works, it works well but it's the times I'm sleeping and it doesn't work that scare me most. ### 3/5 — Dissatisfied with sensor *2026-04-13, version 1.15.0* My sensors always start failing in the last couple of days of usefulness. I am very disappointed with the quality of reporting, since I only get 3 for a month, which cuts me off 5 days every year. Thank goodness I can get replacement s without issue from dexcom when they do fail. ### 4/5 — Fair *2026-04-12, version 1.15.0* Seems to loose signal frequently for no reason The adhesive also in inferior to other monitors My insurance won’t cover other brands ### 3/5 — Accuracy ? *2026-03-08, version 1.15.0* I stopped using a tandem Mobi pump while using G6 sensors. When I was calibrating with a Contour finger stick meter I realized that the G6 readings could be very close to the Contour readings, or off by as much as 20 or 30 points . This affected the reliability of the pump, because it only reacted to what the sensor was telling it . I went back to using Novolog and Lantus pens, but still use the G6. Before using a pen I always confirm with the Contour meter to insure a proper dose. My time in range now is much better, with numbers mostly in the 80s . ### 5/5 — keeps me alive ty *2026-02-20, version 1.15.0* i love this app so much and my parents have the follow app but if you can somehow like create something would send through when your glucose is low that like asks what treatment did you have and there can be like custom stuff you added like tablets or juice or whatever you have and you tap what you had and it sends through to the follow app so my parents don't always text me or bug me about it and if like i don't see or tap it they'll know there's a problem like i fainted or something so they can do something so yeah i just thought of this one day it would be a dream come true if this happened ty for this app i love it! ### 5/5 — Life saver *2026-02-12, version 1.15.0* I absolutely love this app and it has been a life saver for me! Before I got this I couldn’t keep track enough of my blood sugar levels because I am new at this and it’s been a struggle to keep my sugars level. This app has alerted me when it gets to low or to high so I can get control of it before I end up in the hospital again. Before the App I ended up in a coma for two days because my sugars were so high and I didn’t know that my pancreas had shut down and I needed insulin. Now I have to take insulin every day and this is a blessing! ## Most critical reviews (10 lowest-rated) ### 1/5 — DONT UPDATE THE JUNE/JULY 2026 *2026-08-03, version 1.16.0* Don’t update the June/july 2026 update they don’t care about how laggy the app is now that the G6 is retired ### 1/5 — The app disappeared from my Apple Watch *2026-07-26, version 1.16.0* The app on my Watch disappeared, and I have no reason why. Still works on my phone, but I rely on it to work on my watch as well. ### 1/5 — I love Dexcom but.. *2026-07-25, version 1.16.0* The graph has disappeared since yesterday’s update. ### 1/5 — Years-long bugs and unreliable alerts *2026-06-29, version 1.15.0* I’m wearing my last G6 sensor before I switch to the G7, but figured now is as good of a time as any to leave a disappointed review of the app. On the positive side, I am grateful that this technology exists, and that when the sensors fail (as they do about once a month on average), the company is usually accommodating with free replacements. Dexcom Clarity is also a highly useful element of this product, but this review pertains only to this app. Unfortunately, the alerts, which are the most crucial features of the app, are somehow both unhelpful and startling at the same time. I wish there were a way for me to acknowledge high or low alert early if I know I’m going to get one in a few minutes anyway. There’s really nothing like knowing my blood sugar might go out of range and wanting to silence that notification early, but having countless interviews, classes, etc., interrupted by a noise that disrupts everyone around me in a 50 foot radius. Not to mention how, although I have rise and fall rate alerts turned on, they only notify me after my blood sugar is out of range when the rise or fall rate was already significant almost an hour before the app made me aware of it. The integration with iOS is also disappointing, because Siri has extreme limits on what information she can share with me, and the widgets rarely have real time data. The warm-up time being two hours long is extremely inconvenient for people who rely on this technology so much. My sensor will end at 110, but the next one will begin at 254 as much as I try to prevent it. It’s also concerning that when there may be an issue with the sensor, the app is extremely generous on guessing the glucose values, often insisting that my blood sugar is up to 200 or 300 points above or below my actual glucose reading. Lastly, my app has had a bug for about five years now, that no iOS, app version, or iPhone model upgrade has been able to resolve. When launching the app, the orientation of the graph sometimes flickers from horizontal to vertical back-and-forth several times, and usually lands in an orientation that glitches so badly that most of the indicators and buttons are invisible. This happened about once every day or so for the last five years, and requires me to quit and reopen the app in hopes that the glitch resolves. Nobody on tech support knew how to resolve it. The graphics used to illustrate the sensor in the app are poor and could have easily been improved by a few hours redrawing them in a vector program. Even the features like “add event” are not intuitive, and I didn’t feel inclined to use them at all in the last 10 years. When looking at the color scheme, feature placements, fonts, and symbols, this app has never looked better than something a design intern could have whipped up in Figma with one day of training. It’s truly abysmal for a company that is so uniquely positioned in the market, is trusted for critical medical information by so many people, and charges hundreds or thousands of dollars for their products every month. I look forward to switching to the G7 soon, but I am desperate for a completely different experience than what I had with the G6. ### 1/5 — Transmitter and sensors are horrible!! *2026-06-10, version 1.15.0* Y’all need to fix this immediately asap! Now I already used up all my sensors and I have none left!! ### 1/5 — Terrible *2026-06-04, version 1.15.0* I love having a CGM. But this app makes it so hard. I had to log in to share my readings with my parents, but it said “Account not found.” We tried this multiple times, with tech help on the line. We had to delete the app, and re enter everything. This is incredibly annoying as well as the “No sensor readings” and it says wait 3 hours. No. That is stupid as hell. My life is on the line because of your stupid app. ### 1/5 — Mentally draining *2026-05-14, version 1.15.0* Sensors constantly fail just a couple days after applying, glucose is off by 100+ all the time even if you calibrate daily. I have used this app for years and it’s problem after problem. If you’re reading this you seriously need to find an alternative to Dexcom, this company is seriously awful ### 1/5 — Doesn’t work *2026-02-23, version 1.15.0* This app is awful! I’m not sure how it’s happened but my settings screen does not look like anyone else I know with the g6. I have no option to re-calibrate so everything is super, super, off. ### 1/5 — Notifications Not Working *2026-02-19, version 1.15.0* I’m not getting notifications that my blood sugar is extremely low. Not notification and I see I’m already below 70. Not happy!! ### 1/5 — Useful but limited *2026-02-12, version 1.15.0* We should be able to access more then 24hrs of data as well as leave notes about what food we ate to better track what makes our numbers spike to better tailor or future meals and snacks. ## Most praised reviews (10 highest-rated) ### 5/5 — G6 ending? *2026-07-25, version 1.16.0* -Update- Based on the automated response below, I think it’s safe to assume that this update will do nothing except remind you every 20 minutes that the G6 is being phased out, therefore it’s best not to do this update unless you want to be annoyed. Continue to use your remaining G6 patches in peace. — If the only purpose in this update is to let us know that the G6 is being phased out please tell us that! It’s not worth updating if that’s the only difference ### 5/5 — R.I.P G6 *2026-07-10, version 1.15.0* Dexcom canceled G6 if you have some still you can use it or you switch to G7. R.I.P G6 ### 5/5 — "Life Saver" *2026-05-27, version 1.15.0* Dex 6 system have provided the constant monitoring that have enabled me to do a better job controlling my blood sugar levels. ### 5/5 — G6 *2026-05-03, version 1.15.0* App works well, support is always available and positive ### 5/5 — Not very accurate *2026-04-12, version 1.15.0* I gave up on this because I kept getting woken up in the middle of the night by false low readings. It would be off by up to 100 points at times. ### 5/5 — Great device *2026-04-11, version 1.15.0* I love this device. I watch what I eat better and I can tell what makes my blood sugar spike. I wish I had this when I first was diagnosed ### 5/5 — lifesaver/ lifechanger *2026-04-11, version 1.15.0* thank you for this... please develop a dark mode and a lock screen blood sugar widget!!! ### 5/5 — Where would I be without Dexcom? *2026-03-25, version 1.15.0* Honestly what a great app! I don’t know where I would be without it. I couldn’t imagine using another app or having to do my finger poke everyday. I would say that the readings have always been very on point for me! At least for me, the customer support service has always been very helpful. Yes sometimes there are some issues with the app, but doesn’t every app have issues from time to time? Overall very good… and very life saving 😉 ### 5/5 — Very Accurate *2026-03-07, version 1.15.0* This dexcom is the one I got when I got diagnosed back in 2021. This dexcom is very accurate!! ### 5/5 — Dexcom seven *2026-03-07, version 1.15.0* I love my Dexcom seven it has really helped me with my glucose and let me know when it’s heading down or it’s heading up too fast. I’ve recommended it to several people that I know thank you, Dexcom. --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-24.*