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Rainbow review (2026): is it worth it?

Alcatel-Lucent Enterprise cloud chat, meetings and telephony

PaidTeam ChatChecked Nov 12, 2026 · graded Nov 13, 2026 by ToolGPA
Visit openrainbow.comFree guide

Black Friday: is there a Rainbow sale?

Rainbow report card

2.2GPA

Fair · out of 4.0 · graded Nov 13, 2026

Best for firms wanting chat, meetings and business phone in one

Rainbow is Alcatel-Lucent Enterprise's platform for messaging, meetings and business telephony, with APIs and a choice of public cloud, alongside an existing phone system, or private cloud. No price is published, and it is aimed at organisations rather than individuals or small teams.

Who Rainbow is for

  • Fits if your company already runs Alcatel-Lucent phones and wants chat on top
  • Works for organisations that need to choose where their data sits

Who Rainbow is not for

  • Skip it if you want a price on the page, as none is published
  • Not for you if you are one person or a very small team, since it targets organisations
  • Too light on detail for licences, because it is unclear which features come with which one
  • Watch out: no trial or free plan is listed
See the alternatives

Why Rainbow gets a 2.2

Five grades, each with its reason. The GPA is their average: an A is 4 points, an F is none.

  • CValue for moneyNo price on the pages read, so it sits in the middle. It is sold through the vendor.
  • FFree plan and trialNo free plan and no trial are listed anywhere on the pages read.
  • BFeaturesChat, meetings, telephony, AI services, a Teams connector and developer APIs. The pages do not say which features come with which licence.
  • CEase of useNo store rating on record. A platform sold to organisations means a deployment to set up.
  • APlatforms and integrationsWeb, Mac, Windows, iOS and Android apps, APIs and SDKs, and a Microsoft Teams connector.

What these grades rest on. Graded from this listing, whose facts were read from Rainbow's own pages on 12 November 2026. Not based on using the product, and shorter than our full reviews. How we review and grade.

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Rainbow: 2.2 GPA on ToolGPA

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Where Rainbow stands among team communication apps

Rainbow's GPA of 2.2 is higher than 6 of the 50 other team communication apps we grade, and level with 7.

It stands best on platforms and integrations (A, above 28 of 50) and worst on free plan and trial (F, above 0).

Each grade against the category

Every bar is all 51 team communication apps we grade, cut by the letter each got. Rainbow’s own letter is outlined.

  • CValue for moneyAbove 5 of 50, level with 27
  • FFree plan and trialAbove 0 of 50
  • BFeaturesAbove 39 of 50, level with 10
  • CEase of useAbove 7 of 50, level with 29
  • APlatforms and integrationsAbove 28 of 50, level with 22

Keep Rainbow, or make your own?

Keep it

To replace Rainbow you would be making chat that a whole team counts on staying up. That is not a weekend's work, with an AI app builder or without one.

That makes this kind of software worth paying for, not this one in particular: 37 of the 50 other team communication apps grade higher.

What you could not

  • Chat that a whole team counts on staying up.
  • Video calls.
  • Apps for macOS, Windows, iOS and Android that stay in step with each other.
  • It plugs into other products, Microsoft Teams among them, and has an API.
  • AI features, unless you pay a model provider for each request yourself.
  • What a company asks for before it lets staff use something: HIPAA.
  • Sharing with other people, which means accounts and invitations.
  • The depth: we grade its features B, which means it covers the whole job.

What this rests on. Rainbow’s listing: what it does, where it runs, what it plugs into and what it costs. It is a judgement about the kind of software this is. We have not built a replacement for it, and making your own means looking after it too. How we decide, and every tool’s verdict.

What is Rainbow?

Rainbow is a cloud communication and collaboration platform from Alcatel-Lucent Enterprise. It combines messaging, meetings and business telephony, and offers APIs and SDKs for developers. It can run in a public cloud, alongside an existing phone system or as a private cloud.

Worth knowing

  • No prices are published on the pages read; pricing is unverified and likely sold through Alcatel-Lucent Enterprise.
  • The vendor describes an a la carte service, so which features come with which licence is not stated on the pages read.
  • Rainbow is aimed at organizations, not individuals or very small teams.

Key features

Chat and collaboration
Enterprise messaging and collaboration sit in the same app as business telephony and meetings.
AI services
The vendor lists transcription, summaries, real-time translation and an AI reception agent as included in the licence.
Flexible deployment
Runs as public cloud, on top of an existing PBX or as a private cloud, for 5 to 100,000 users according to the vendor.
Data location and certifications
The vendor lists 15 data centres worldwide and certifications including ISO 27001, GDPR, HIPAA and C5.
Microsoft Teams connector
A telephony connector pairs Rainbow with Microsoft Teams, and APIs and SDKs support custom integrations.
Apps for each platform
The vendor's pages list a web application plus apps for macOS, Windows, iOS and Android.

Rainbow pricing

We could not confirm Rainbow’s current pricing from its own site, so we are not listing plans here. See openrainbow.com for current prices.

Works with

Rainbow alternatives

All Rainbow alternatives comparedAll team communication apps

Common questions

Does Rainbow have a Linux app?

No Linux app was listed when its pages were read on Nov 12, 2026. Rainbow is listed for Web, macOS, Windows, iOS and Android.

Is Rainbow open source?

Rainbow is not described as open source on its own site, as read on Nov 12, 2026.

Does Rainbow have an API?

Yes. Rainbow offers a public API, according to its own site.

Sources for this page

The prices, plans, platforms and features above were read from these pages on Nov 12, 2026.