The best alternatives to Hiya are You've Got Spam, Callblock, and Truecaller. If these 3 options don't work for you, we've listed a few more alternatives below.
What do you think of Hiya?
AssemblyAI— Speech-to-Text API with superhuman accuracy
Callblock is the first app that lets you stop telemarketing phone calls in iOS (https://techcrunch.com/2016/09/07/callblocks-new-ios-app-will-block-calls-from-over-2-million-telemarketers/), with the world’s biggest directory of telemarketers – now over 3,000,000 classified entries from over 100 countries!
Identify and block spam calls or SMS, search for unknown numbers, call and chat with friends. With a community-based spam list from over 250 million users, Truecaller is the only phone app you’ll ever need.
Truecaller respects your right to privacy. Your phonebook is never made searchable or public.
AVOID ANNOYING SPAM CALLS & SMS
Credo360 is an open reputation system, where your score is based on ratings and reviews you get from people you deal with. It works like reputation systems on eBay or Airbnb - but Credo reputation belongs to you as a person. Use Credo when you need to deal with someone you don’t know. This will help you keep your privacy and avoid scams.