# iOS lack of compatibility for Tandem and Dexcom apps **URL:** \ **Category:** Tips, Tech & Gear\ **Tags:** tandem-x2, iphone\ **Created:** [September 17, 2024, 2:44pm UTC](https://forum.fudiabetes.org/t/ios-lack-of-compatibility-for-tandem-and-dexcom-apps/14903 "2024-09-17T14:44:46Z")\ **Posts on this page:** 8\ **Page:** 1
**Author:** ![CarlosLuis](https://yyz2.discourse-cdn.com/flex030/user_avatar/forum.fudiabetes.org/carlosluis/32/11389_2.png) [@CarlosLuis](https://forum.fudiabetes.org/u/CarlosLuis)\ **Post date:** [September 17, 2024, 2:44pm UTC](https://forum.fudiabetes.org/t/ios-lack-of-compatibility-for-tandem-and-dexcom-apps/14903/1 "2024-09-17T14:44:46Z")
If you use Tandem mobile app and Dexcom apps on your iPhone the 2 companies are not in sync on iOS compatibility. Tandem has approved 18, but Dexcom is stuck at 17.5.0. ---
**Author:** ![bostrav59](https://yyz2.discourse-cdn.com/flex030/user_avatar/forum.fudiabetes.org/bostrav59/32/7281_2.png) [@bostrav59](https://forum.fudiabetes.org/u/bostrav59)\ **Post date:** [September 17, 2024, 5:32pm UTC](https://forum.fudiabetes.org/t/ios-lack-of-compatibility-for-tandem-and-dexcom-apps/14903/2 "2024-09-17T17:32:19Z")
So best to stay put under iOS 17.5? Tandem did just send a ms saying they were okay with iOS 18, But I haven’t heard anything from Dexcom. ---
**Author:** ![CarlosLuis](https://yyz2.discourse-cdn.com/flex030/user_avatar/forum.fudiabetes.org/carlosluis/32/11389_2.png) [@CarlosLuis](https://forum.fudiabetes.org/u/CarlosLuis)\ **Post date:** [September 17, 2024, 6:56pm UTC](https://forum.fudiabetes.org/t/ios-lack-of-compatibility-for-tandem-and-dexcom-apps/14903/3 "2024-09-17T18:56:58Z")
> [@bostrav59](#): > > But I haven’t heard anything from Dexcom. I just checked Dexcom, they haven’t approved 18. I just saw there’s some glitch in 18 having to do with Apple/Android messaging. ---
**Author:** ![SobeiT](https://yyz2.discourse-cdn.com/flex030/user_avatar/forum.fudiabetes.org/sobeit/32/11540_2.png) [@SobeiT](https://forum.fudiabetes.org/u/SobeiT)\ **Post date:** [September 17, 2024, 8:15pm UTC](https://forum.fudiabetes.org/t/ios-lack-of-compatibility-for-tandem-and-dexcom-apps/14903/4 "2024-09-17T20:15:37Z")
@CarlosLuis Sorry no help for Tandem users but according to Loop & Learn iOS 17.6.1 is the latest tested version. [Loop N Learn](https://www.loopnlearn.org/version-updates/) ---
**Author:** ![CarlosLuis](https://yyz2.discourse-cdn.com/flex030/user_avatar/forum.fudiabetes.org/carlosluis/32/11389_2.png) [@CarlosLuis](https://forum.fudiabetes.org/u/CarlosLuis)\ **Post date:** [September 17, 2024, 9:26pm UTC](https://forum.fudiabetes.org/t/ios-lack-of-compatibility-for-tandem-and-dexcom-apps/14903/5 "2024-09-17T21:26:50Z")
> [@SobeiT](#): > > Sorry no help for Tandem users but according to Loop & Learn iOS 17.6.1 is the latest tested version Tandem is okay at 18-it Dexcom that’s foot dragging still at 17.5.0. ---
**Author:** ![SobeiT](https://yyz2.discourse-cdn.com/flex030/user_avatar/forum.fudiabetes.org/sobeit/32/11540_2.png) [@SobeiT](https://forum.fudiabetes.org/u/SobeiT)\ **Post date:** [September 18, 2024, 2:08pm UTC](https://forum.fudiabetes.org/t/ios-lack-of-compatibility-for-tandem-and-dexcom-apps/14903/6 "2024-09-18T14:08:59Z")
@CarlosLuis Sorry about Hi-jacking your post when I saw that Dexcom was lagging for Tandem users at 17.5 I got concerned that I went past a safe version so I posted the safe version for Loop & Trio (should have said that) to help keep others from worrying. 🤷‍♂️ ---
**Author:** ![Jane17](https://avatars.discourse-cdn.com/v4/letter/j/6de8d8/32.png) [@Jane17](https://forum.fudiabetes.org/u/Jane17)\ **Post date:** [September 20, 2024, 11:27pm UTC](https://forum.fudiabetes.org/t/ios-lack-of-compatibility-for-tandem-and-dexcom-apps/14903/7 "2024-09-20T23:27:11Z")
Just updated to iOS 18. Phone wasn’t working right and she suggested updating. Have not had any problems with Dexcom. ---
**Author:** ![Cevans54](https://avatars.discourse-cdn.com/v4/letter/c/7ea924/32.png) [@Cevans54](https://forum.fudiabetes.org/u/Cevans54)\ **Post date:** [September 21, 2024, 7:21pm UTC](https://forum.fudiabetes.org/t/ios-lack-of-compatibility-for-tandem-and-dexcom-apps/14903/8 "2024-09-21T19:21:12Z")
I have ios18 and have not had any problem with either tandem mobi phone app or dexcom G7 app.