Mjlnir uses the Sportabler registration and payment system both to manage payments and subscriptions, as well as for members to book a place in classes. This comes with various advantages, as Sportabler is also available as a smartphone app (applet) in five languages (Icelandic, English, Polish, Spanish and German), but with its use, all information will be more targeted, exercise registrations will be more convenient, and all communication and overview will be in one place.

What do I need to do?
First, you need to create an account in Sportabler, if you don't already have one, and preferably download the app.

If you have not used Sportabler before, go to and create an account in the upper right corner (click on Log in with Sportabler and then select Create account).

After the registration, you then download the Sportabler app to your phone (in the App Store, Play Store or Google Play) and log in.

How do I book a place in class?
As mentioned before, Sportabler is also used by Mjlnir members to book a place in class. Active members can do that either in the app or at the URL

It's easy to register for a class in the app under "Events" and click on the plus sign there (see picture) and then a page with the classes in Mjlnir will appear.

Sportabler events

If you do not want to use the Sportabler app you can access useful information here below:

If something is unclear, Sportabler has an online chat on the app and on the company's registration page where you can get help with technical issues.

Foreign visitors and others who are buying single sessions, and are not registered practitioners in Mjlnir, can complete payment and registration for classes at the Mjlnir reception.


Mjolnir MMA

Flugvallarvegur 3-3a
102 Reykjavik

+354 534 4455


Mondays, Wednesdays and Fridays: 06:15 - 22:00
Tuesdays and Thursdays: 07:00 - 22:00
Saturdays:08:45 - 14:00
Sundays:10:15 - 15:00

Training halls close according to the Timetable when the last class ends, but weight lifting is open Mon.-Thu. until 22:00 (Fri. 20:30).

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