NextDNS is always free for DNS. It also provides 300,000 queries free every month dor working with ad/tracker blocking configurations. Once this limit is exceed

NextDNS is always free for DNS. It also provides 300,000 queries free every month dor working with ad/tracker blocking configurations. Once this limit is exceeded, DNS continues to work but blocking doesn’t until the next month or until its paid for. The paid subscription is about USD 2 a month or USD 20 a year.