Keiser M Series User Reviews

What users say

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Unfortunately

Sadly they updated the app and it sticks constantly not reflecting the actual speed or watts. It also drops Strava all the time now. Bad update they should revert.

Doesn’t work

Will not let you register. Just spins

Please fix the updates to Strava…

I’ve been using the app for a few years and I’ve never had as many issues as I have had since the last update. It won’t upload anything for me anymore to Strava. Please fix this, or at least allow for a way to manually upload to Strava 🙏🏼

Fix the bugs

EDIT: now it won’t allow me to connect to Strava, despite taking me to its website to give permission for Keiser to access. What’s the point of taking the app offline just to create more bugs? Go back several steps to the version we’ve been using for a decade and worked perfectly well until recent attempts to “improve” it.

Bluetooth has not been improved, it now disconnects every 5mins or so before reconnecting again. Also, it’s now no longer automatically uploading to Strava.

Please revert to previous version until you fix the bugs introduced in this update.
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Won’t stay connected

If I temporarily view another app while riding the Keizer bike and come back to this MSeries app, the app is disconnected from the bike, asks to reconnect, and all the exercise data from the time period when I was viewing another app is lost. Thus all my history data is incomplete and unusable.

I spoke too soon, still disconnects

Unfortunately during today’s 45 workout the app disconnected 7 times.
It’s also still laggy to pick up changes of gear or pace.
None of this was an issue before the updates started!

So broken

i’ve been using this app for years without an issue and all of a sudden about a week ago after the update it suddenly loses connection continuously. It’s not just me, its everybody in the spin studio and every studio I go to. I know it’s been updated again a couple of days ago, but it’s still losing connection on a frequent basis.
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Continuous drop-outs

In a 40 minute session I had nearly 20 drop-outs. Seems to be one of those cases of ‘If it ain’t broke, don’t fix it!’.

Still issues with latest update

Still losing connection during workout numerous times, lags to changes with gears and effort, spoiling the activity as needed to keep an eye on it for it dropping out.

Bugs in the app

Bugs have appeared in the app!!

The update is terrible

Connectivity is loss during my workout- it is awful! NEVER had a connectivity issue until these last 2 updates! FIX IT!

Connection issues

New version still dropping connection multiple times mid rides

4.5.1 SUCKS

U/I is bad. Numbers are much smaller on guage display - far harder to read quickly while working out. No need for translucent power gauge, again it's harder to quickly read while working out.

App background connectivity

This app cannot maintain Bluetooth connectivity in the background if you switch apps during a workout.

New UI annoying

Why remove the visual indicators of RPM and Gear and replace with digits? Harder to use

New Update Buggy

Since the 2026 update my connection keeps dropping in my spin class making the app unusable.

Fix the bugs

Bluetooth has not been improved, it now disconnects every 5mins or so before reconnecting again. Also, it’s now no longer automatically uploading to Strava.

Please revert to previous version u til you fix the bugs introduced in this update.

New Update

App doesn’t work now after the latest update.
Been using this for many years without any problems. Tried using it tonight, kept asking me to reconnect, so didn’t work. Hope a new update will be coming soon to fix these problems!

Unusable following latest update

Since the last update the app is not usable. It constantly looses connection (even when cycling at 180-200 watts).
I have also lost the connection with Strava. I tried several bikes in the spin studio and have the same experience on all. I am using an iPhone 16 running the latest iOS. No one in my spin class now uses this app, which is a shame as most used to use it and compare stats etc
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Don’t update to v4.5

Updated after app prompt. During spin class, regular disconnects and laggy updates makes it unusable. No longer updates Strava either. There were no problems with the previous version.