The Keiser M Series Converter Updater app expands the capabilities of the Keiser M Series Converter through wireless firmware updates. Simply follow the in-app instructions to update your M Series Converter with the latest firmware, improving battery life, adding features and enhancing stability.

What’s New

Version 1.2.1

Fixes crashing issues.
Adds notices for contacting support when issue detected.

Ratings and Reviews

1.8 out of 5
6 Ratings

6 Ratings

Rack Ball ,

Great update app; not working on Peloton app

Peloton all connects to sensor but it doesn’t report back any cadence, just “0 RPM”.

Nitsuadeer ,

Converter Update

It updated the converter but it still doesn’t work inside my Sufferfest App. It now connects inside the app but doesn’t populate watts or rpm. I’ll continue to be patient, luckily I got FTP/4DP info to not need the converter but it sure makes it nice when its populated and saves in the app.

Still happy with my M3i bike though. You can’t beat how quiet the ride is but they just need to figure out this converter debacle ASAP!

Ed_the_Red ,

Do NOT use this app

The firmware update this app delivers (as of early October 2019) will render your converter useless. It still powers on and connects but no longer delivers watts or RPM to a connected app ... which negates the entire purpose of the converter. I’m currently waiting for Keiser to resolve my issue. Love the bike, but the converter and related software is a hot mess.


Keiser Corp.
40.2 MB

Requires iOS 8.0 or later. Compatible with iPhone, iPad, and iPod touch.



Age Rating


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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