When comparing Simple Form vs LiveForm, the Slant community recommends LiveForm for most people. In the question“What are the best online services for making forms?” LiveForm is ranked 6th while Simple Form is ranked 7th. The most important reason people chose LiveForm is:
You just need to plug the form endpoint in your form action. No iframes are needed
Ranked in these QuestionsQuestion Ranking
Pros
Pro Customizable email Notifications
You can create an email notification using the liquid markup language which gives you a lot of flexibility in the notification emails that you receive
Pro File uploads
Allows 'file' type inputs and uploading of files via its' forms.
Pro Complete control over markup
You get a form endpoint like https://getsimpleform.com/messages?form_api_token=39c8f9e5a2de15ad63469475702522b9
which you can plug into your form's action. Giving you complete control over your markup.
Pro Complete control over the markup
You just need to plug the form endpoint in your form action. No iframes are needed
Pro API Access
Allows accessing of message through an API
Pro File Uploads
Allows file uploads as part of form submissions
Pro Email Notifications
Allows addition of multiple recipients when a form submission is made
Pro Webhooks
Simple Webhooks which allow integration with other services like Zapier.
Pro reCAPTCHA and Akismet for spam prevention
Adding reCAPTCHA can completely eliminate spam from your form submissions
Cons
Con Does not host forms
You need to host your forms on your website. It doesn't allow you to create hosted forms like Google Forms
Con Does not host the forms
You can't create a Google Forms like form and host it on LiveForm, you need a website to put the form code in.