Google Voice vs Mattermost

What each one’s own pages state, side by side. Every value is a quote AirStack found on that product’s pages; “Not observed” means AirStack has not found it on that product’s pages.

Google VoiceMattermost
What it says it doesStay connected and save time with a flexible cloud phone system for individuals and businesses of all sizes. workspace.google.comZero-trust collaboration, automation and AI in private cloud, self-hosted, and air-gapped environments. mattermost.com
Starting atNot observedNot observed
Platformslaptops, mobile devices, supported desk phones workspace.google.comdesktop, embedded inside Microsoft Teams, mobile, web, Android, Mac, PC, iOS mattermost.com
Deploymentcloud workspace.google.comfully air-gapped, private cloud, self-hosted, cloud-based hyperscalers, on-prem data centers mattermost.com
IntegrationsCalendar, Google Meet, Siri workspace.google.comMatrix, Microsoft Teams, XMPP, GitHub, Jira, ServiceNow, Global Relay, Proofpoint, GitLab, Zoom, Grafana, Prometheus, Pexip, Elasticsearch, Actiance, Amazon EKS, Azure Kubernetes Service, DigitalOcean Kubernetes, Google Kubernetes Engine, CircleCI, Confluence, GitLab Plugin, Jira Plugin, Zoom Plugin, BotKube, Cisco Syslog, Nagios, Sentry, Prometheus AlertManager Plugin, Chess Plugin mattermost.com
ComplianceNot observedCCPA, GDPR, ISO 27001, SOC 2 trust.mattermost.com
Free planYes workspace.google.comYes mattermost.com
PlansGoogle Voice Starter standalone, Standard standalone support.google.comEnterprise, Enterprise Advanced, Professional mattermost.com
Open sourceNot observedYes mattermost.com

Where they differ

Prices are list prices as written on each pricing page; check them before you buy. Nothing here is a ranking or a recommendation.