Clerk.io

Clerk.io is a web service that works like a digital shopping assistant that assists all your customers locate their perfect desired product products in no time there by giving you an extra edge over all competitors.

It learns your customers interests there by looking at their orders and their on-site behavior.
Then it helps them navigate to through the products they are looking for.

The more reasons I will recommend this is:
It makes your products, goods and services easy to locate with its sales powered search engine, it locates you to your various customers and prospects.
It will always help them find exactly what they are looking for, thereby converting sales with just few clicks through bringing the relevant products to customers attention as they start to type.

It has the following features in searching:

• Auto spellings corrections
• Faceted search
• Full-Phrase Semantic Search
• Ranking by Patterns of shops and Sales

Another cool feature is the personalized recommendation:

This helps your customers and prospects find the most relevant products they need. It boosts order value and profit margin by showing tailored product recommendations to each browsing customer. By doing the followings

• Add-To-Basket Recommendations
• Showing what customers also bought
• Other alternative products.
• Showing what other customers are looking at
• popular and prending Products
• Give you recommendations for Your shopping Cart

You make Your Emails Personal
You know not all you customers will like same emails, so bring your customers back to site to buy again by using personalized recommendations in all your marketing mails, trigger flows and newsletter. You can:

• Sell via Personalized Newsletters
• send sell Order Receipts.
• Automate Periodical Newsletters

It also:

• Targets the right customers by using a google-like Search for Customers' Interest, locating and re-engaging inactive customers, nurturing your VIP customers, also re-engages customers before they slip away then it also
  Identifies customers that are highly loyal.

This and many more are what u stand to gain for you different business.

Link image2
Link3
Link4