I used to use CapsuleCRM as it had a free tier for people that use google apps, and it synced to my phone. //edit//And I could also bcc: it in on emails to rec

I used to use CapsuleCRM as it had a free tier for people that use google apps, and it synced to my phone. //edit//And I could also bcc: it in on emails to recruiters and it would keep the emails against the contact for reference.