vioscaleAI
Comparison

ICU vs Tolgee

No clear leader: ICU (57.8) and Tolgee (54.2) are within the 5-point margin; treat as a tie. The attribute-by-attribute breakdown below, with a source and date on every value, is the honest way to compare them.

ICU full profile →Tolgee full profile →
Machine formatsMarkdownJSONGraphQLMarkdown is open. JSON and GraphQL need a free key.
ICU58
Tolgee54
Score
vioscaleAI score
ICU58 / 100medium · 53%
Tolgee54 / 100high · 76%
Pricing
Free tier
ICU–
Tolgee✓
Model
Price level
ICUfree
Tolgeemid
Starting price
ICU–
Tolgee€58
Transparent
ICU–
Tolgee✓
Integrations
Count
ICU20
Tolgee13
Security
Gdpr
ICU–
Tolgee✓
Iso27001
ICU–
Tolgee✓
Scorecard
ICU9
Tolgee–
Vulnerabilities
Adoption
Dependent repos
ICU6,271
Tolgee–
Github stars
ICU3,616
Tolgee–
Activity
Commits last 30d
ICU63
Tolgee–
Release
Cadence days
ICU49
Tolgee–
History
ICU20 items
Tolgee–
Language
Primary
ICUC++
Tolgee–
Market
Availability
Content
Faq

Capabilities

Feature-by-feature on the axes that matter for localization i18n. “-” means undocumented, not absent.

Capabilities
Cldr plural rules
ICU✓
Tolgee-
Rtl bidi support
ICU-
Tolgee-
Translation memory
ICU-
Tolgee✓
Glossary terminology
ICU-
Tolgee✓
In context editing
ICU-
Tolgee✓
Ota updates
ICU-
Tolgee✓
Self hostable
ICU-
Tolgee✓
Managed translation services
ICU-
Tolgee-
Qa checks
ICU-
Tolgee-

What each one is

The product in its own terms, so the numbers below have context.

ICU

ICU is a widely-used open-source library that provides Unicode text handling, internationalization services, and localization support for C, C++, and Java applications. It fills gaps in platform-native Unicode support, enabling portable text processing across operating systems and programming environments.

Independently observed

Tolgee

Tolgee is an open-source localization platform that streamlines app translation with AI-powered suggestions, in-context editing, and support for multiple frameworks. It combines machine translation capabilities with collaborative translation management and supports both cloud and self-hosted deployment.

Independently observed

Pricing

List pricing as published by each vendor, with the date we read it. Always verify at the source before you buy.

ICU

Open source
as of verify ↗

Tolgee

from €58/moHybridFree tier

Free tier with 30,000 words. Paid plans start at €58/mo billed annually. Unlimited seats on all paid plans.

  • FreeFree
    • Standard localization features
    • All Tolgee integrations
    • 30,000 hosted words
  • Translate€58/mo billed annually, unlimited seats
  • Optimise€133/mo, unlimited seats
    • Standard localization features
    • AI translator with brand context
    • Glossaries
    • AI playground
    • Multiple content delivery configurations
  • Manage€373/mo, unlimited seats
  • EnterpriseContact sales
    • Premium support
    • Single Sign On
    • Dedicated Slack channel
    • Account manager
    • Team training
    • +3 more
as of verify ↗

Platform & deployment

Where each product runs and how it can be hosted. A dash means undocumented, not unsupported.

Platforms
Web
ICU✓
Tolgee✓
iOS
ICU✓
Tolgee✓
Android
ICU✓
Tolgee✓
macOS
ICU✓
Tolgee✗
Windows
ICU✓
Tolgee✗
Linux
ICU✓
Tolgee✗
CLI
ICU✓
Tolgee✓
Deployment
Cloud / SaaS
ICU–
Tolgee✓
Self-hosted
ICU–
Tolgee✓
On-premise
ICU–
Tolgee✓

Integrations

What each product connects to. Counts come from the vendor's own integration directory where one exists.

In common (2)
  • Chrome
  • Android

ICU

20 total - 18 not shared
  • Adobe
  • Amazon (Kindle)
  • Apache
  • Apple
  • eBay
  • Google
  • Google Maps
  • Google Analytics
  • Gmail
  • Facebook (HHVM)
  • Microsoft
  • Eclipse
  • FreeBSD
  • Debian Linux
  • CouchDB
  • Firebird RDBMS
  • ESRI
  • CERN
Independently observed

Tolgee

25 total - 23 not shared
  • React
  • Angular
  • Vue
  • Svelte
  • Next.js
  • i18next
  • Vanilla JS
  • Slack
  • REST API
  • Docker
  • iOS
  • Flutter
  • C++
  • PHP
  • .NET
  • Compose Multiplatform
  • JSON
  • XLIFF
  • .po
  • Chrome Plugin
  • Figma
  • Unreal Engine
  • Firefox
Independently observed
Still deciding?

ICU or Tolgee: which one depends on you

A composite score cannot know your constraints. Describe them and both get re-weighted against what you actually need, with the evidence behind every position.

Free to run, no account needed to start. How the evaluation works

Comparison generated from independently-sourced facts. Every value links to its source and retrieval date. See the method.