What users complain about in Slack
22 complaints about Slack from 22 people, read from Google Play reviews rated 1–3 stars (29 Jun 2026 – 20 Sept 2026). The most repeated complaint is “Horrible!”, with 3 reviews. Complaints about v26.09.30 are 18 points more painful than about v26.09.20.
What they complain about
Complaints grouped by meaning, largest group first. Each name is a verbatim fragment of something somebody wrote, not an editorial label.
Slack — Horrible!.
3 complaints · 3 peoplepain 33Because my sign-up email is inaccessible, I am trapped in a endless login loop on my phon…
1 complaint · 1 personpain 40I have to constantly have to be checking Slack myself manually to see if any new notifica…
1 complaint · 1 personpain 36Extremely slow uploading pictures
1 complaint · 1 personpain 32Slack on mobile is functional, but the largest piece of feedback I have for the app on de…
1 complaint · 1 personpain 51Slack — Workspace re-ordering is broken on iOS.
1 complaint · 1 personpain 84Ever since sales force bought them, they’re slow to incomplete anything native.
1 complaint · 1 personpain 22Slack — Slack sucks, work sucks.
1 complaint · 1 personpain 33keeps not sending voice notes just stays stuck in sending i have to redownload the app
1 complaint · 1 personpain 20Slack — Terrible audio video bad search.
1 complaint · 1 personpain 40Slack — Unreliable notifications.
1 complaint · 1 personpain 33But in the time since I last used it, it has metastasized into a sprawling, overblown app…
1 complaint · 1 personpain 40
Did the last release help?
Complaints about v26.09.30 are 18 points more painful than v26.09.20. App Store only — Play reviews carry no version.
- v26.09.30546 complaints17 Sept 2026
- v26.09.20365 complaints11 Sept 2026
- v26.09.10385 complaints05 Sept 2026
- v26.06.40333 complaints29 Jun 2026
The reviews themselves
22 of 22 complaints, most painful first. Every one links to the review on the store.
Slack — I hate this
Slack — I hate this.
Slack — Terrible on iPhone
This is really annoying
Slack — Workspace re-ordering is broken on iOS
Slack — Workspace re-ordering is broken on iOS.
Slack — Annoying notification bubbles
Slack — Annoying notification bubbles.
Slack — Notifications Broken
With the insistence of some of my workspaces on using it, that means I’m stuck checking manually.
Slack — Functional but improbable
Slack on mobile is functional, but the largest piece of feedback I have for the app on desktop or mobile is that the media player is awful.
Slack — Horrible corporate slop
Slack — Horrible corporate slop.
Slack — Incredibly outdated design for a mobile app
Because my sign-up email is inaccessible, I am trapped in a endless login loop on my phone's web browser, and the mobile app is completely useless for fixing it.
Slack — Horrible!
Slack — Horrible!.
Slack — Terrible quality for a paid app
Slack — Terrible quality for a paid app.
Slack — Terrible audio video bad search
Slack — Terrible audio video bad search.
Slack — Confusing and sloppy mobile UI
But in the time since I last used it, it has metastasized into a sprawling, overblown app with so many redundant “features” that it fails at doing the one thing I need: to communicate quickly with my colleagues.
Slack — No pop ups on Apps
I have to constantly have to be checking Slack myself manually to see if any new notifications.
Slack — Unreliable notifications
Slack — Unreliable notifications.
Slack — Slack sucks, work sucks
Slack — Slack sucks, work sucks.
Slack — Kinda sucks
Extremely slow uploading pictures
Slack — Very Bad for production environment
Is very hard to find messages, only 9 people chats is very bad - this creates a lot of limitations and confusion, every month I need to reinstall the app again because starts failing
Slack — Used to be better
I PAY to save time not to spend it having to wait while it transcribes.
Slack — This app is sad
Ever since sales force bought them, they’re slow to incomplete anything native.
Slack — Keeps not sending voice notes
keeps not sending voice notes just stays stuck in sending i have to redownload the app
Slack — Confusing interface
Slack — Confusing interface.
Slack — Terrible experience
Slack — Terrible experience.
Questions about Slack
- What do users complain about in Slack?
- The most repeated complaints, grouped by meaning: “Horrible!” (3). Each theme name is quoted from a review, not a label we assigned.
- How many people complain about Slack?
- 22 reviews rated 3 stars or below from 22 people on Google Play, written between 29 Jun 2026 and 20 Sept 2026. The reviews themselves, each linked to the store, are listed on this page.
- Did the latest Slack update make things better?
- Complaints about v26.09.30 are 18 points more painful than about v26.09.20. Measured on 6 and 5 App Store reviews — Google Play reviews carry no version.
- Is this Slack's store rating?
- No. Only reviews rated 3 stars or below are collected, so these numbers describe complaints and cannot be read as the app's App Store or Google Play score.
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