Rainbow
- Android app
- Yes
- Free plan
- Yes
- Paid plans from
- €2/mo
- Runs on
- Android, api, iOS, Mac, Web, Windows
Summary
Rainbow is a cloud-based communication and collaboration platform for businesses, with persistent one-to-one and group chat, presence information, task management, voice and video calls, screen or app sharing, and file sharing. Its telephony options include PBX control, phone presence, call logging, VoIP, caller identification, call forwarding, and voicemail on eligible plans. Office integrations include Microsoft and Google calendar options, an Outlook plug-in, and telephony for Microsoft Teams. Hybrid telephony can connect to OmniPCX Enterprise, OXO Connect, and third-party CTI and Media Bridge integrations. Rainbow is available through web, Windows, macOS, Android, and iOS apps, among other listed platforms, and services are offered in more than 75 countries and 22 languages. Listed security capabilities include AES-256 encryption, region-based data residency, and SAML or OIDC single sign-on. The free Essential plan includes one administrator and one-to-one audio, video, and screen sharing. Business is €2.00 per month per user; Enterprise is €4.00 per month per user. Business and Enterprise include 24/7 support and an uptime SLA.
Who it is for
Rainbow is positioned for businesses from small companies to multinational organizations, including those needing cloud, on-premises, or hybrid deployments. Its free Essential plan may suit users who need basic one-to-one collaboration.
What is good
- Free Essential plan
- Includes chat, calls, sharing, and task management
- Supports cloud, on-premises, and hybrid deployments
- Offers integrations with Microsoft and Google services
- Business and Enterprise include 24/7 support
What to know first
- Essential is limited to one administrator
- Essential sharing is one-to-one
- Voicemail and other telephony features depend on eligible plans
Verdict
Rainbow brings messaging, collaboration, and telephony options together, with free and paid plans. Check the plan limits and eligible-plan requirements against the number of users and calling features you need.
Rainbow plans and pricing
All plansCompared on unified communications software
- Free plan
- Yesopenrainbow.com
- Business calling
- Yesopenrainbow.com
- Team messaging
- Yesopenrainbow.com
- Video meetings
- Yesopenrainbow.com
- Call recording
- Yesopenrainbow.com
- Auto attendant
- Yesopenrainbow.com
- Meeting participant limit
- 2 participantsopenrainbow.com
Facts
- Product type
- Rainbow is a cloud-based communication and collaboration platform that can connect people, objects and interactions through the cloud.openrainbow.com · 30 Sept 2026
- Collaboration
- The service provides persistent one-to-one and group chat, presence information, task management, voice/video calling, screen or app sharing, and file sharing.help.openrainbow.com · 30 Sept 2026
- Telephony
- Hybrid and cloud telephony features include PBX control, phone presence, call logging, VoIP calling, caller identification, call forwarding and voicemail on eligible plans.help.openrainbow.com · 30 Sept 2026
- Integrations
- Office integrations include Google Chrome Click2Call, Rainbow Telephony for Microsoft Teams, Microsoft 365 Exchange Online or Google Calendar, and a Microsoft Outlook plug-in.help.openrainbow.com · 30 Sept 2026
- PBX connectors
- Hybrid telephony supports OmniPCX Enterprise, OXO Connect and third-party CTI and Media Bridge integrations for Cisco, NEC, Mitel and Asterisk.help.openrainbow.com · 30 Sept 2026
- Availability
- Rainbow services are available in more than 75 countries and 22 languages through web, Windows, macOS, Android, iPhone, iPad and Android TV apps.help.openrainbow.com · 30 Sept 2026
- Security
- The feature list states AES-256 encryption at rest and in transit, region-based data residency, and SAML or OIDC single sign-on across the listed plans.help.openrainbow.com · 30 Sept 2026
- Compliance
- The listed security and compliance capabilities include ISO/IEC 27001, French HDS, GDPR, ANSSI CSPN, Spain ENS, Italy AgID, HIPAA, FERPA and UK NHS support.help.openrainbow.com · 30 Sept 2026
- Support
- Business and Enterprise include 24/7 support with a 20-minute first response time and a 99.9% guaranteed uptime SLA; Essential includes a digital Help Center.help.openrainbow.com · 30 Sept 2026
- CPaaS
- Rainbow provides a CPaaS developer platform with APIs for contact management, chat, voice, video, screen sharing, file storage, group collaboration and automation bots.al-enterprise.com · 30 Sept 2026
- API usage limits
- The production CPaaS allowance includes 2,000 administration API calls, 5,000 Bots and Resource API calls, 500 WebRTC minutes and 5 GB storage per month before invoicing.al-enterprise.com · 30 Sept 2026
- Free trial offers
- The subscriptions page says some offers provide free trials or demonstrations, specifically Rainbow Hub and the Rainbow Telephony for Microsoft Teams connector.openrainbow.com · 30 Sept 2026
- Intended users
- Rainbow is positioned for businesses ranging from small businesses to multinational organizations and supports cloud, on-premises and hybrid deployments.al-enterprise.com · 30 Sept 2026
Company
- Headquarters
- Colombes, Franceopenrainbow.com · 28 Sept 2026
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Sources
- openrainbow.com/app/en/subscriptions-services· checked 30 Sept 2026
- help.openrainbow.com/hc/en-us/articles/20572471983506-Browse· checked 30 Sept 2026
- al-enterprise.com/en/rainbow/developers· checked 30 Sept 2026
- al-enterprise.com/en/company/about-us/history· checked 30 Sept 2026
- openrainbow.com· checked 28 Sept 2026
- openrainbow.com/offer/· checked 30 Sept 2026