Coherence is a customer operations platform from Brightyard, Inc.
Alternatives to Serif
Serif is built for small businesses and operations teams that want routine work handled in shared addresses such as info@, support@, and billing@. It can qualify and route inquiries, answer common questions, collect paperwork, send quotes, and follow up on unpaid invoices. It connects to Google Workspace or Microsoft 365, with an option to use an address of its own. Ambiguous or sensitive messages can be escalated, and replies can be approved before the assistant works…
Front is customer communication software with shared inboxes, ticket automation, SLA management, a help center, a customer portal, and API access.
HubSpot CRM brings customer data and reporting into a unified view, with tools for managing sales activity and team conversations.
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Pipedrive
AndroidiOSWebAPI7.9From $14 a month - 5

Drag
Drag is a shared inbox for teams that handle customer email in Gmail or the Drag web app.
AndroidiOSWebAPI7.8From $12 a month - 6

Spike
Spike is an email and collaboration app with a unified inbox, scheduled sending, and calendar tools.
Free planAndroidiOSWebmacOS7.8From $4 a month - 7
Zoho TeamInbox
Zoho TeamInbox gives teams a shared workspace for handling incoming and outgoing messages.
Free planAndroidiOSWeb7.4From $0.99 a month - 8

Gmelius
Gmelius is a Gmail-native platform for setting up AI agents to handle defined team jobs across connected tools.
AndroidiOSWebAPI7.3From $228 a year - 9
Yorlet
Yorlet is a lettings platform for managing leasing, billing, payments, owner accounting, maintenance, compliance, risk and resident experiences.
Free planAndroidiOSWebAPI7.3From £1 a month - 10

Help Scout
Help Scout is customer support software that brings email, SMS, social, chat, and voice into a shared Inbox.
Free planAPI7.2From $25 a month - 11

Litmus
Litmus is an email workflow platform for teams building, testing, monitoring, and analyzing campaigns.
WebAPIExtension7.2From $79 a month - 12
Shared Inbox by Canary
Shared Inbox by Canary brings team email and helpdesk work into a shared workspace.
iOSWebmacOSWindows7.0From $10 a month - 13

Helpwise
Helpwise is a customer communications tool that gathers queries from multiple channels in a Universal Inbox for teams to manage and answer together.
AndroidiOSWeb6.9From $15 a month - 14

Maxdesk
Maxdesk is a web-based help desk for teams that handle customer support through email.
Free planWeb6.8From $20 a month - 15
HubSpot Live Chat
Free planAndroidiOSWeb6.7Free plan - 16

Missive
Missive is a paid email and collaboration app available on the web, Windows, macOS, iOS, and Android.
AndroidiOSWebWindows6.7From $14 a month - 17
Sharebox
Sharebox turns Google Groups into shared inboxes managed from Gmail through a Chrome extension sidebar.
Free planWebExtension6.7From $79 a month - 18
Team Engine
Team Engine is recruiting and retention software for field-based, deskless, and multilingual workforces.
AndroidiOSWeb6.7From $400 a month - 19
ShareMail
ShareMail is a shared inbox for small teams using Gmail, available on the web and Android.
AndroidWeb6.6From $6 a month - 20

SupportBee
WebAPI6.6From $20 a month - 21
Emailgistics
Emailgistics adds shared-mailbox assignment, workflow automation, SLA monitoring, and reporting to Microsoft 365 inside Outlook.
WebWindows6.4From $13 a month - 22
Consolidate
AndroidiOSWebLinux6.2From €288 a year - 23
Mailtwine
Mailtwine is an email service for Android, iOS, Linux, macOS, web, and Windows.
Free planAndroidiOSWebLinux6.2Free plan - 24
Spark for Teams
Free planAndroidiOSmacOSWindows6.2Free plan - 25
ZapMail
ZapMail is a collaborative email service for teams using real addresses, shared inboxes, and AI assistance.
Web6.1 - 26
Plexvia Shared Inbox
Free planWeb6.0From $199 a month - 27

Hiver
API5.7From $25 a month - 28
Repliqo
WebmacOSWindows5.7From $190 a year - 29
Mailbutler Inbox Collaboration
WebmacOS5.6From $5 a month - 30
SBX
WebWindows5.4From €8 a month


