ChatGPT iOS App Lags to the Point of Unusable
12 posts across 3 communities in the last 30 days; 58% from r/ChatGPT.
“My ChatGPT iOS app is pretty fundamentally broken today. Chats not loading. The app is crashing. I’ll restart it and it still is laggy as heck. I have an iPhone 17 Pro and have never had issues like this in the past. How is everyone else’s performance and experience going? Am I…”
“it’s riddled with glitches, half the time you have to close and reopen the app multiple times to actually get the response, chats randomly switch between chat and work mode, crashes sporadically, chats glitch so bad i have to redownload the app because it won’t let me send…”
“For the last week or so, the official ChatGPT app hasn’t been opening normally. It just hangs on the Dark Mode logo instead of loading. I've found that switching to another app and then returning, or opening the app switcher (double-tapping the Home button), seems to get it…”
Several users report significant lag and performance issues with the ChatGPT iOS app, impacting usability. This suggests potential scalability or infrastructure problems within OpenAI's services.
SOURCES (37)
“[ChatGPT] ★ 1/5 (v1.2026.279) — ChatGPT does not work well in safari on iPad.Scrolling content is really bad. Improve and reply”
“My ChatGPT iOS app is pretty fundamentally broken today. Chats not loading. The app is crashing. I’ll restart it and it still is laggy as heck. I have an iPhone 17 Pro and have never had issues like this in the past. How is everyone else’s performance and experience going? Am I isolated in my bad experience or is this happening to others with the latest update? submitted by /u/indiegameplus [link] [comments]”
“the chat app is unusable when you're doing any sort of conversation involving latex rendering submitted by /u/Solid-Carrot-2135 [link] [comments]”
“it’s riddled with glitches, half the time you have to close and reopen the app multiple times to actually get the response, chats randomly switch between chat and work mode, crashes sporadically, chats glitch so bad i have to redownload the app because it won’t let me send another message. anyone else noticing? submitted by /u/Boring-Debt3058 [link] [comments]”
“For some reason two of my chatgpt chats are saying aw with multiple w’s and they’re making my iPad lag plz help!😭 submitted by /u/Sprunki-moch [link] [comments]”
“For the last week or so, the official ChatGPT app hasn’t been opening normally. It just hangs on the Dark Mode logo instead of loading. I've found that switching to another app and then returning, or opening the app switcher (double-tapping the Home button), seems to get it unstuck temporarily. However, the problem keeps coming back. There's also an apparent memory issue. If I open another app on my iPad, ChatGPT seems to run out of memory, get suspended in the background, and then go th”
“I use the website on my phone browser, safari. When I get 3-4 messages deep in a conversation, it suddenly becomes laggy. There’s 5+ seconds of delay between me hitting a button on my phone keyboard and the letter appearing on my screen. It gets to the point where it’s a pain in the ass to use. This happen to anyone else? Advice? submitted by /u/Afghanka [link] [comments]”
[ChatGPT] ★ 1/5 (v1.2026.272) — Not good pls fix ur app
“[ChatGPT] ★ 1/5 (v1.2026.272) — The app is laggy AF, images, files attachment seems to be broken and openAI don’t care fixing it. Also the tone of the chats has changed and became super annoying. Unsubscribing”
“Hey everyone! I wanted to ask if anyone here happens to have a ChatGPT paid subscription and would be willing to help me out for a while. And i have 17.ios and can’t even update the latest version of chagpt anyway, My exams are coming up soon and my exam system is completely MCQ-based. I have to make and practice a lot of MCQs from my notes, slides and past papers. ChatGPT has been really helpful for this because I can send pictures or PDFs and get MCQs made from them and also ask it to explain”
“[ChatGPT] ★★★ 3/5 (v1.2026.258) — The app is generally great, but the scrolling performance needs improvement. On my iPad Pro M5 running iPadOS 27, scrolling through long ChatGPT conversations can feel surprisingly choppy, with noticeable frame drops and stuttering even though the device has a 120Hz ProMotion display. I also notice this occasionally on my iPhone 15 Pro, although it’s less severe there. For such a powerful device, scrolling through a long chat should feel much smoother. Please”
ChatGPT Advanced Voice Mode is extremely slow on IOS
“Any fix? This is annoying me. submitted by /u/MidnightFriendly1901 [link] [comments]”
“I can’t grasp how a note taking app can be this slow. I get more FPS even in 3D games. Plus, it’s not even a newly released app, it’s been around for years. For god’s sake, how can it take 10 seconds to open a note that has only 10 lines of text? submitted by /u/wintergustt [link] [comments]”
“Currently I use iPhone,iPad,Mac apps as well as browser. Each version has a different UI to some extent with features in different locations or not even available. The combo with codex is horrible, it has commingled my codex projects with chat projects (many of which have similar names), lost sessions, switched to codex without me knowing, toggled between models, toggled thinking levels without my knowledge and the responses have got so bad that’s it’s almost become useless. I have been a power”
“my ipad does that too but only in notion, nowhere else. it’s like the app is fighting ios autocorrect and losing”
“Anybody else’s ChatGPT app insufferably slow? If you fixed this issue please let me know how… been like this for weeks! submitted by /u/Exciting-Suit3257 [link] [comments]”
“Pen and paper if i cant easily access my ipad, or discord if its a link to something. My phone is just for maps and communication. I’ve not found that obsidan is any slower on my ipad m3 air or my ipad m2 pro vs my linux lenovo. I dont often close the app. Processing this stuff is part of the process. Processing any information is an essential part of the process. It gives you a second time to see it and add to it.”
Every app works flawlessly on iOS so this is a very rare sight lmao
“Did you just say "iOS (most optimized os)"? ...so you immediately ignore the most glaring problem?! LOL!”
“I use pro. For a week now my voice chat lags so bad and stops and starts. Signal is fine. Also the talking bubble thing which was white and blue is now black. My partner (same model iphone and network) works absolutely perfectly (not pro) Thanks submitted by /u/Traditional_Tip_1178 [link] [comments]”
“I'm a ChatGPT Plus subscriber and for the last week the iOS app has become unusable. After I type a message, the send button is blue, but tapping it does absolutely nothing. It doesn't send the message, there's no error, and the app just seems frozen. I have already tried: • Force closing the app • Logging out and back in • Deleting and reinstalling the app • Restarting my iPhone The exact same issue is now happening on my iPad as well. ChatGPT works normally in Safari on the same ac”
“As the title says, since yesterday, ChatGPT has been extremely slow for me. Responses take a lot of time, and generating images is also quite sluggish. I do not experience this issue on the Android app. Is it just me? submitted by /u/No-Mail-3004 [link] [comments]”
“[ChatGPT] ★★★ 3/5 (v1.2026.195) — ChatGPT is so laggy and slow. It takes forever to respond. I don’t know if it’s my phone or it’s the app. It’s most likely ChatGPT because my phone is working perfectly fine. Can this please be fixed asap???? This is the most frustrating thing ever!!!!! I would give this 5 stars if ChatGPT wasn’t so slow to respond!!!”
“[ChatGPT] ★★★ 3/5 (v1.2026.195) — Review: I have been a long-time ChatGPT user, and I really appreciate the product. However, the iOS app performance needs improvement. I am using an iPhone 12 Pro, and the app often becomes very laggy. Sometimes buttons do not respond when I tap them, pages take a long time to load, and switching between chats or features feels slow. In some cases, I have to wait several seconds or restart the app to get it working smoothly again. The iPhone 12 Pro is still a ca”
“Is anyone else seeing an increase in tickets about slowness/lag from their customers? This seems to have started about 1-2 months ago, but from a technical perspective, everything appears to be working normally. I can understand on older systems, but i5-13th gen+ with 16GB of RAM shouldn't be laggy. The worst part is when I or my techs are remoted in everything seems to perform as expected. Update: This is across laptops and desktops from Lenovo and Dell. Update 2: In some cases I feel like”
“Is anyone else having this issue? I seem to be one of the few that actually likes the new app (sure, it needs some work). But it kills my system. Not only is there severe input lag while it's doing certain things, but multiple times it has completely locked up Explorer. It's damn near unusable. I'm currently on version 26.707.72221, but it was happening on a previous version too. Intel Core Ultra 7 155u 32GB RAM submitted by /u/recoveringasshole0 [link] [comments]”
You listed IOS under PWA... I've found that they just don't work on IOS.
iOS app. Both iPhone and separate iPad. Both iOS versions are updated. App versions updated. When it answers questions, it just lags. Letter by letter typing out. It's painful to watch. Sometimes…
“[Slack] ★★ 2/5 (v26.06.30) — I miss chat messages and media uploading creates weird ui glitches.”