What are some alternatives?
When comparing WP Smush and Gravity Forms, you can also consider the following products
TinyPNG - Make your website faster and save bandwidth. TinyPNG optimizes your PNG images by 50-80% while preserving full transparency!
Typeform - Create beautiful, next-generation online forms with Typeform, the form & survey builder that makes asking questions easy & human on any device. Try it FREE!
Yoast Plugins - Yoast offers plugins to improve SEO and optimize web sites and blogs.
Wufoo - Wufoo's HTML form builder helps you create online web forms. Use our web form creator to power your contact forms, online surveys, and event registrations.
ImageOptim - Faster web pages and apps.
Wordfence - Comprehensive security plugin for WordPress.