NeverBounce - Real-time email verification and cleaning to ensure emails never bounce.
Voicemod - What are the voice changers? How do these work? Are these illegal? What is a soundboard? Find all the answers here. Voicemod - The Best FREE Voice Changer
ZeroBounce - Removes invalid emails from your list to prevent email bounces from ruining your deliverability.
GSnap - With GSnap you can get an auto-tune effect.
Email List Verify - The Fastest Way to Improve Email List Deliverability and ROI
Clownfish Voice Changer - Clownfish Voice Changer is multiple voice changing software for various chatting and gaming platforms.