Sigful is an SMB and Enterprise email signature marketing and management software that powers email signatures and promo banners for businesses through a custom embedded signature generator, offering a user-friendly no-code platform like Bubble to bring the idea to life. The app is designed as a SaaS platform with an unlimited free trial, allowing users to create email signatures and banner templates, combine them into a template generator page, and unlock it with a subscription activation. Sigful's founder, Ross Walpole, chose Bubble due to its good community and user-friendly software, and the platform has enabled him to quickly realize his business idea as a graphic and digital web designer and developer. The app aims to evolve based on customer needs, adding more signature templates and improving customer support as it grows.