NeverBounce - Real-time email verification and cleaning to ensure emails never bounce.
A.R. Emoji Custom Keyboard 4+ - A.
Email List Verify - The Fastest Way to Improve Email List Deliverability and ROI
Keyboard Skins for iPhone - Keyboard Skins for iPhone is known as a keyboard extension that comes with cool designs, colors, and customizable stuff that change your standard keyboard theme.
DeBounce - Email Validation, Email Checker, Data Enrichment and Appending Tool. Using DeBounce remove invalid, disposable, spam-trap, syntax and deactivated emails.
Neon L.E.D. Keyboard - Neon L.