Algolia - Algolia's Search API makes it easy to deliver a great search experience in your apps & websites. Algolia Search provides hosted full-text, numerical, faceted and geolocalized search.
Office Lens - Download this app from Microsoft Store for Windows 10, Windows 10 Mobile, Windows Phone 8. 1, Windows Phone 8, Windows 10 Team (Surface Hub), HoloLens. See screenshots, read the latest customer reviews, and compare ratings for Office Lens.
Google Custom Search - Google Custom Search enables you to create a search engine for your website, your blog, or a collection of websites.
Scanner Pro - Scanner Pro turns your iPhone into portable scanner in your pocket.
ElasticSearch - Elasticsearch is an open source, distributed, RESTful search engine.
Genius Scan - On The Go.