L
LSYSTRAN vs Unbabel
Pricing, features, platforms and who each one suits — side by side.
S
Choose SYSTRAN if…
- you need an API to build on
- you want to trial it before paying
- you work on Chrome, Self-hosted
- you're in its core audience: enterprises, professional translators
U
Choose Unbabel if…
- you're in its core audience: customer service teams, localization managers
Side by side
Feature SYSTRAN Unbabel
Pricing modelFree trialContact for pricing
Starting price$18.99/mo—
Free plan
Free trial
API
Open source
PlatformsWeb, API, Chrome, Self-hostedWeb
CategoryTranslationTranslation
Rank in its category#5 of 12#9 of 12
CompanySYSTRAN (ChapsVision)Unbabel Inc.
Based in——
Founded1968—
Part of——
Price changes we've recorded
We re-read each pricing page every month and log what changed.
SYSTRAN
- Nov 2, 2026Starting price: none → $18.99/mo; Pro Plus: 17.99€/mo per user billed annually; 24.99€ monthly → $18.99; Pro Premium: 34.99€/mo per user billed annually; 49.99€ monthly → $34.99; New plan: Developer (Custom)
Unbabel
No changes since we started tracking.
Key features
S SYSTRAN
- Translation in 55 languages
- Document translation for 30+ formats, including PDF and IDML
- One-click web page translation via browser extension
- Speech-to-text translation add-on
- Model Studio for custom translation models
- Microsoft Office 365 add-in
- CAT tool and TMS connectors
- Formal/informal tone selection
U Unbabel
- AI translation adapted to company terminology and tone
- Optional human review of translations
- Custom workflows by market or content type
- Real-time AI quality estimation and reporting
- Quality Intelligence for checking any translation
- MT Score for comparing machine translation models
- Integrations with Zendesk, Salesforce, Intercom and Freshdesk
- ISO 27001 certified security with encryption and anonymization
Plans and prices
From each vendor's site. Prices change — confirm before buying.
SYSTRAN
Pro Plus$18.99/user/mo billed annually ($25.99 monthly)
Pro Premium$34.99/user/mo billed annually ($49.99 monthly)
EnterpriseCustom
DeveloperCustom
Unbabel
Contact for pricing. Plan details aren't published.
Strengths and limitations
SYSTRAN
- Can run on-premise or in a private cloud for high-security needs
- States that customer content is not stored or used, and holds ISO 27001 certification
- Annual billing lowers the per-user price (Pro Plus is $18.99 vs $25.99 monthly)
- Supports 30+ document formats
- No free plan, only a trial
- Enterprise and API pricing is not published
- Pro plans cap monthly characters per user (1M on Plus, 3M on Premium)
Unbabel
- Combines AI translation with optional human review
- Ready integrations with major helpdesk and CRM tools
- Real-time quality estimation shows how good translations are
- ISO 27001 certified security program
- No public pricing; you have to request a demo
- No self-serve free plan or trial listed
- No public API documented on the home page
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Facts from each vendor's public pages. Editorial policy