There probably are more platforms, but honestly I hope not!
What most new signing agents don't understand that platforms, like SnapDocs, are very damaging to business for signing agents.
Because signing companies have to pay a hefty fee to use SnapDocs they take that cost out of what they are willing to pay the signing agent, which means that the signing agent makes less money. Companies that used to pay over $100 per signing before using SnapDocs now tend to pay only $75-$90 per signing, if that much.
Also, when companies use platforms like SnapDocs it means that you will have a LOT more competition for business. They simply blast out requests and usually the fastest / cheapest signing agent gets the assignment. Competition may be good for the signing company, but this type of competition can be detrimental for the signing agent.
So, while platforms like SnapDocs may be "convenient" it is ultimately the signing agent who pays for that convenience, figuratively and literally.
I personally stopped working with platforms like SnapDocs years ago. I have direct business title company clients who call me FIRST and who pay me a MINIMUM of $150 per signing. Finding direct business does take more time and effort, but it is absolutely worth it!