Foursquare might be a bit more popular than Haystack. We know about 1 link to it since March 2021 and only 1 link to Haystack. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.
If you are looking to make a virtual business card I would recommend using a website like https://thehaystackapp.com/ or other similar ones found online. In terms of what you want to include just your name may be a short listing of your experience and a picture of you. In terms of your portfolio again you would normally use a website creator and make your website. Some options there are Squarespace, Wix. WordPress... Source: over 3 years ago
You may have heard of some of the high profile websites using Eleventy — EsLint, Foursquare, Web.dev, and V8.dev to name a few. - Source: dev.to / about 2 years ago
HiHello - Exchange contacts, seamlessly.
Tripadvisor - The Tripadvisor mobile app is available for the Android and iOS platforms. It can be used to create reviews of hotels, restaurants, and to chat with other travelers on Tripadvisor forums.
CamCard - CamCard reads business cards and save instantly to phone Contacts.
Yelp - The free Yelp mobile app is the fastest and easiest way to search for businesses near you. Download it now to get started.
Sansan - Sansan provides a internal contact sharing service for companies.
Booking.com - Find your next stay. Search deals on hotels, homes, and much more...