You don’t have to respond to every applicant, but we encourage you to decline the ones that you don’t think are a great fit so they know to move on in their search. You can always add an applicant back to the pool if you want to revisit their application.
If you don’t hire or decline an applicant, they will remain in your applicant pool. Keep in mind that Jobble is an open marketplace. If you don’t hire a Jobbler, they may be hired by another business even though they remain “Pending” in your applicant pool.