Pudding is described as 'social proof app for online stores - it displays testimonials and information about visits, quantity and sales to help nudge shoppers into buying'. There are more than 10 alternatives to Pudding for Online / Web-based, SaaS, Self-Hosted solutions and Wordpress. The best alternative is NotificationX, which is both free and Open Source. Other great apps like Pudding are ProveSource (Paid), ProofGain (Freemium), SocialProve (Paid) and Koraki.io (Free).
SocialProve uses social proof notifications to increase website conversion rates by +15% in average. When people visit your website, they will see small tiny popups showing other people also using your website. They feel more likely to use your website.
Social proof widget from future - There are many potential customers visiting your website but leave it because they don't believe what you say. Building customer trust is the key point for better conversion rate.