extremely slow, you can't search anything you send
Captured on . See reviews on Google Play
Microsoft TeamsReported repeatedly
People cannot keep up with a conversation that stutters
4 people raised this across 4 weeks, on both iOS and Android.
iPhone and Android users in the UK, US and Canada, across three app versions.
In their own words
Neither app store gives a review a permanent public link, so each entry is a snapshot taken on the date shown and the link goes to the app's review listing.
Teams randomly crashes and restarts even in the middle of calls
- worked before an update
Captured on . See reviews on the App Store
It stutters and lags as I interact with the chats and channels on my mobile device
- said they were leaving
Captured on . See reviews on the App Store
when i try to scroll up through posts the app freezes
- worked before an update
- described a workaround
Captured on . See reviews on the App Store
What people do instead
- refresh the app
- restart the phone
What you could do with this
These four are written from the reviews above. Everything else on this page is quoted or counted.
written
BUILD IT
A message list that renders only what is on screen.
See how3 points
- Recycle rows as they scroll instead of holding every post in memory
- Keep search off the render thread so typing stays responsive
- Start with the scroll-up path reviewers describe freezing
Why it might not workA chat client carries years of features on one thread, and a rewrite touches all of them.
written
START IT
A lighter client for people who only need to read and reply.
See how2 points
- Read, reply, and nothing else, on older hardware
- Sold to the operations teams whose staff carry the oldest phones
Why it might not workWork chat is bought centrally, and a second client is a security review nobody wants.
written
STUDY IT
Does message latency change what people write?
See how2 points
- Compare reply length and speed on fast versus stuttering clients
- Ask whether people move a conversation elsewhere when it lags
Why it might not workChat contents are private, so this needs a consenting workplace rather than a dataset.
written
WRITE IT
The app everyone must use and nobody can scroll.
See how2 points
- Sit with someone working a shift through a stuttering client
- Use the reviews describing a freeze on scrolling back
Why it might not workEnterprise-software complaint is a worn genre; the angle is people with no choice of client.
Related challenges
Microsoft Teams
People are stuck signing in to an account that no longer exists
I can't even sign in with my account
Build itA way to remove an account from the device without removing the app.
Start itAn identity switcher that treats work accounts as things people leave.
Study itWhat is left on a device when someone leaves an organisation?
Write itYou left the company. The app did not.
Early signal
Notion
People lose their place, and their work, when the editor freezes
the app is really really laggy on iPhone
Build itAn editor that keeps your text when the app stops responding.
Start itA recovery layer that editors could license rather than build.
Study itHow much writing is actually lost, and does anyone notice at the time?
Write itWhy the little saved indicator lies.
Widely reported