I can't speak to PIA. Air is in the top 3 around here in numerous threads, among many privacy forum members with 1000 + posts. I find Air rock solid and the open source code is constantly under scrutiny among very active staff and beta users. IVPN too. I'll resist thrashing any provider I haven't tried personally, unless others here who I respect post numerous times about issues of security. Black Friday specials will be coming for many of the service providers. You can get annual deals on the cheap at that time, just sayin!!
I tried PIA a few years ago and IMO would not go back to them, I heard good things about AirVPN and I'm using IVPN at this time and very, very happy with it.
If price is not an issue, I'd say IVPN > AirVPN > PIA. But all three are OK. And all three are arguably true privacy advocates, and not just in it for the money. PIA is a lot less expensive than either IVPN or AirVPN, but it tends to oversell servers. And IVPN is arguably the most technically sophisticated.
I have heard alot of good about air vpn, their supports is not good (they are very slow at replying) but they try to keep you anonimous, they are Italians. The only vpn I know that u don't need montly subsriptions with auto-renewal but unique time frames. U can buy just 1 day for instance. U can test for 3 days free 2 so u can see what its all about (u need to request free trial code via they support site and register, but they reply after 1 week sometimes). According to some airvpn is not super-easy to use like some other two-button solutions..
Actually, their client (Eddie) is among the best. It's got a good firewall to prevent leaks. And it works with other VPN providers. But I like IVPN's clients better, because they're more technically elegant. Not that I actually use custom VPN clients
Mirimir, You know I am on your "page" with provider clients. Recently, I have been introducing extended family members to VPNs and they are ignorant of anything technical. Eddie makes my job as mentor easy as pie. I don't want the hassle of setting up my own custom logins/certificates for THEIR machines.
Yeah, Eddie's OK. The Windows version that I tested long ago leaked, but they fixed that. So it's fine.
I have a little concern over Air - not deal-breaker, but still - for their explanation I linked in this thread. It turned out its a little better than Pure as they store default.xml in user folder which is invisible to other accounts who don't have admin rights. But still they store user credential in plain text (confirmed). The concern is not necessarily the problem itself, but their explanation seems to indicate lack of understanding as I said in the thread. Well, however, such thing is not rare - Tutanota also showed lack of understanding when they're notified about data manipulation vuln. Maybe I should notify them, but I'm lazy man...