addy.io vs GridInbox

addy.io creates email aliases that forward messages to a real inbox, allowing users to give out aliases instead of their main address. An alias can be deactivated to silently discard new mail or deleted so senders receive a bounce. Users can connect a domain they control and set catch-all controls. Paid features allow replying to forwarded messages or starting messages from an alias without revealing the real address. Users can add GPG/OpenPGP public keys for recipients to encrypt forwarded mail, with an option to hide and encrypt the subject. The maker lists free open-source apps for iOS and Android, browser extensions for several browsers, and an API for automating aliases and other account resources. Self-hosting instructions and two-factor authentication are also available. The free plan includes unlimited standard aliases, but sets limits for shared-domain aliases, recipients, available alias domains, and monthly bandwidth. Paid plans start at $1 a month billed yearly; higher tiers list more recipients and custom domains, among other additions.

GridInbox is a shared email workspace for handling customer conversations sent to business addresses such as support@, sales@, and billing@. Team members can assign conversations, see who is handling them, and send or reply from the address where a message arrived. Its REST API can create and delete aliases, read messages, and send email programmatically. GridInbox also extracts one-time passwords and verification codes from incoming email for access through its dashboard or API. The Free plan costs nothing and includes five aliases, 10 outbound and 50 inbound messages per month, 512MB of storage, a 5 MiB attachment limit, and REST API access. Pro costs $19 a month and includes unlimited aliases, OTP extraction, 5GB storage, and up to three custom domains. Team costs $99 a month and includes five seats with role-based access control and up to 10 custom domains. GridInbox is designed for transactional and operational email; bulk marketing email is prohibited. It runs on the web and offers API access.