Our Gmail HUD product will be discontinued on July 31. Rapportive, the platform that makes Gmail HUD possible, will be removing all third-party integrations on this date.
We’ve found this product immensely useful within our own company, and are sorry to see it discontinued. Unfortunately, we aren’t aware of a comparable product with good reviews. You can try using Infusionsoft Sync for Gmail but we can’t vouch for its speed or reliability.