This early with only you doing everything, you need to pick is your product for consumers or is your product selling to gyms. It seems you've had some success selling to gyms, so would think your traction is showing you may want to continue down that path. Not sure if you have shipped a physical product yet, but it's hard enough getting one version right, let alone two.

If you go consumer, crowdfunding for the consumer side is the way to go. I would think if you had a successful crowdfunding campaign, you would be able to convince a good technical guy to join you (as clearly you've done a ton of hustle on your own).

From the fundraising perspective, at the this early of a stage investors mostly are investing in the team (which right now is only you), unless your product/traction is through the roof. At the early stage is also when you get most heavily diluted, so want to think about how much you are giving up vs. how much do you really need the cash? Again, it sounds like you have traction, so may want to figure out how to keep bootstrapping this vs. taking a big hit equity wise.

feel free to hit me up (email in profile) - I love the space you are going after.