I was frustrated by the fact that all 'free' form handlers out there only allow for 100 free form submissions per month. On top of that you can never be sure where the data is going and how its secured.
So, I decided to make my own using Amazon API Gateway integrated with DynamoDB.
Rough estimate of run cost is ~$3 per million submissions.
For Devs, should take ~10 mins to configure and deploy.
Features include:
Here's the link:
https://github.com/Goldiserv/aws-serverless-form-handler
Enjoy!