What are some alternatives?
When comparing Omaze and SwearJar, you can also consider the following products
Charityvest - A simple, free, personal charitable giving fund
Fundraise Up - Online donation widget so easy, a Schnauzer can do it!
Pledgeling - The simple way to build charitable giving into your business
Leetchi - Create a group money pot for free
Zakatify - A more meaningful way to fulfill charitable obligations.
Urban Slack - The Urban Dictionary Slack bot