Eargo does not offer a free trial period, but they do offer a 45 day right to return period when you get your hearing aids.
The company provides a scheduled call with a licensed personal hearing professional who will help you get the most out of your hearing aids.
There are videos and specialists that can help you with your experience.
Eargo also offers a free fit and feel sample, which is a nonworking model. You can use it to test the fit and comfort of the design.