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Rainbow

Rainbow is a cloud-based communication and collaboration platform for businesses, with persistent one-to-one and group chat, presence information, task manag…

Place
#8 of 28
Score
7.3
Rainbow's website

What Rainbow is

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.

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

Watch out

  • Essential is limited to one administrator
  • Essential sharing is one-to-one
  • Voicemail and other telephony features depend on eligible plans

Who it suits

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.

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.

Plans and prices

From Rainbow's own pricing page, checked 30 Sep 2026.

All about pricing
PlanPriceWhat it gives you
Rainbow EssentialFree1 administrator · 1-to-1 audio/video/screen sharing · 1 GB storage · 20-user bubbles
Rainbow Business€2 a month1-to-1 audio/video/screen sharing · 1 GB storage · 20-user bubbles · SLA · per user
Rainbow Enterprise€4 a monthUp to 10-user audio/video/screen sharing · 20 GB storage · 100-user bubbles · SLA · per user

The facts

Each one read from Rainbow's own pages, with the date it was checked.

What it does

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.checked 30 Sep 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.checked 30 Sep 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.checked 30 Sep 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.checked 30 Sep 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.checked 30 Sep 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.checked 30 Sep 2026
Intended users
Rainbow is positioned for businesses ranging from small businesses to multinational organizations and supports cloud, on-premises and hybrid deployments.checked 30 Sep 2026
PBX connectors
Hybrid telephony supports OmniPCX Enterprise, OXO Connect and third-party CTI and Media Bridge integrations for Cisco, NEC, Mitel and Asterisk.checked 30 Sep 2026
Product type
Rainbow is a cloud-based communication and collaboration platform that can connect people, objects and interactions through the cloud.checked 30 Sep 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.checked 30 Sep 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.checked 30 Sep 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.checked 30 Sep 2026

Money

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.checked 30 Sep 2026

The company

Headquarters
Colombes, Francechecked 28 Sep 2026

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