We’re working hard on the next version of Mindgasm and are close to the switch.
You can already start using it here:

https://beta.mindgasm.net/

-Installable app version
-Much faster
-Cleaner design
-Offline playback (very soon)
-much more in the pipeline

Give it a try and let us know how you like it, or if you encounter any problems, so we can create the best experience possible.