While a free conference call service sounds tempting on paper and might even be a good fit for some businesses, generally, it'll be missing some key features (which is how they get you to upgrade to a paid plan). You might get some of the functionalities you need, but you won’t get them all, and your conferencing service model will likely be more limited.
For example, the provider may charge you for calls by the minute, or give you access to call recordings for an additional price.
With Dialpad’s paid plans, you get unlimited conference calls each month in your country, the US, and Canada. You can make long-distance or local calls easily, whether you prefer to have video or audio conferences. (You could even use the service for small webinars, the sky really is the limit.)
Dialpad also offers many features that a free app wouldn’t necessarily provide, like screen sharing, virtual whiteboards, and toll-free number support.