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Translation AI apps

AI translation and localization — document, app, and real-time speech translation.

10 apps · researched & kept current by Claude Code

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  • View Phrase details
    TranslationPAID

    Phrase

    Phrase

    AI-powered localization platform unifying TMS, software strings, and machine translation.

    Phrase is an enterprise localization platform that automates, manages, and delivers multilingual content. It bundles a translation management system (Phrase TMS), developer-facing string localization (Phrase Strings), workflow automation (Orchestrator), and Phrase Language AI, which routes each job to the best-fitting machine translation engine and scores output quality before release. Plans scale from individual freelancers to custom enterprise contracts.

    Worth knowing

    Formed when Czech TMS Memsource acquired German rival Phrase (ex-PhraseApp) in 2021 and took its name in a 2022 rebrand.

    • localization
    • translation-management
    • machine-translation
    • enterprise
  • View Unbabel details
    TranslationPAID

    Unbabel

    Unbabel Inc. (TransPerfect)

    Enterprise LangOps platform pairing TowerLLM machine translation with human review.

    A Lisbon-born enterprise translation platform that pioneered the hybrid machine-plus-human-editor model for multilingual customer support and content. Built TowerLLM, a translation-purpose-built LLM, and authored COMET, the open-source quality metric much of the MT industry benchmarks with — so quality estimation is native to the workflow. Acquired by TransPerfect in 2025, it continues as a brand and business unit with its models feeding the GlobalLink portfolio.

    Worth knowing

    Acquired by TransPerfect in Aug 2025; its TowerLLM and open-source COMET metric are being folded into the GlobalLink stack.

    • translation
    • langops
    • customer-support
    • quality-estimation
  • View LILT details
    TranslationPAID

    LILT

    LILT, Inc.

    Enterprise AI translation with an adaptive engine and built-in human verification.

    An enterprise and government translation platform built around an in-house Contextual AI engine — interactive, adaptive machine translation that learns from translator feedback in real time instead of classic post-editing. Pairs the AI with a verified human-expert layer, compliance options up to IL6+ for government work, and an API plus connector framework for CMS and localization workflows.

    Worth knowing

    Founded by two Google Translate alumni; in Feb 2026 the Pentagon's CDAO contracted LILT for military-wide AI translation.

    • translation
    • localization
    • enterprise
    • human-in-the-loop
  • View Smartcat details
    TranslationFREEMIUM

    Smartcat

    Smartcat

    AI-first translation platform with a built-in linguist marketplace.

    A cloud translation platform pairing AI translation and CAT tooling with an integrated marketplace of professional translators and automated vendor billing. Supports 280+ languages, translation memory, and collaborative project management. The marketplace and payments are native, so finding and paying human reviewers stays inside the tool.

    Worth knowing

    Raised a $43M Series C led by Left Lane Capital in 2024; counts about 20% of the Fortune 500 as customers.

    • translation
    • cat-tool
    • marketplace
    • localization
  • View Lokalise details
    TranslationFREEMIUM

    Lokalise

    Lokalise

    AI localization platform for software, app, and web strings.

    A translation management system built for software localization, with in-context editing, developer integrations, and AI-assisted translation. Lokalise AI routes strings across models — a Standard tier for everyday content and a Pro tier with context awareness and custom profiles for accuracy-sensitive copy. Manages glossaries, translation memory, and workflow across teams.

    Worth knowing

    Founded in 2017 in Riga, Latvia; raised a $50M Series B led by CRV in 2021.

    • localization
    • translation-management
    • software
    • i18n
  • View Bureau Works details
    TranslationPAID

    Bureau Works

    Bureau Works

    Context-sensitive AI translation operating system for localization teams.

    A translation platform built around a Context Sensitive Translate engine that adapts to each project's content and style rather than relying on static translation memory. Handles end-to-end localization workflow — quoting, task assignment, QA, and payments — across 200+ languages and 50+ file types. Positions LLM-driven context as the core differentiator over generic machine translation.

    Worth knowing

    Founded by Gabriel Fairman as a Brazilian translation-services firm in 2005; pivoted to a software platform in 2021.

    • translation
    • localization
    • context-aware
    • workflow
  • View DeepL details
    TranslationFREEMIUM

    DeepL

    DeepL SE

    AI translation and writing for text, documents, and apps via API.

    A translation service known for fluent, natural output across text, full documents, and a developer API. Pairs the consumer translator and DeepL Write with the DeepL API for adding translation to your own apps. Uses specialized in-house language models rather than a repurposed general-purpose LLM.

    Worth knowing

    Grew out of the Linguee dictionary in Cologne; a 2024 raise put the unicorn at a $2B valuation.

    • translation
    • documents
    • api
    • localization
  • View ModernMT details
    TranslationFREEMIUMOpen core

    ModernMT

    Translated

    Adaptive neural machine translation that learns from your corrections.

    Translated's machine translation engine, ModernMT, is an adaptive neural MT system that adapts to context and learns from human corrections in real time without retraining. It pools project data and translation memories to deliver custom-engine quality on the fly. The core engine is open source, and the hosted Hyper Adaptive service offers managed custom models.

    Worth knowing

    Built by Translated, an Italian firm founded in 1999 that pioneered adaptive machine translation back in 2011.

    • translation
    • machine-translation
    • adaptive
    • open-source
  • View Smartling details
    TranslationPAID

    Smartling

    Smartling

    Enterprise AI translation and localization with optional human review.

    An enterprise localization platform combining a translation management system with AI translation and an in-house translator network. Content is tiered between fully automated AI translation and AI-plus-human review based on visibility and quality needs. Sold via custom enterprise quotes with platform fees plus per-word pricing.

    Worth knowing

    Founded in 2009 by Jack Welde and Andrey Akselrod; raised a $160M growth round from Battery Ventures in 2021.

    • localization
    • enterprise
    • translation-management
    • human-review
  • View Taia details
    TranslationFREEMIUM

    Taia

    Taia

    AI document translation with one-click professional human revision.

    A translation platform combining AI document translation with optional professional human revision and a built-in translation management system. Supports 189+ languages and 65+ file formats with formatting preserved, plus translation memory and glossary management. Each project shows an instant quote to escalate to ISO 17100-certified human translation.

    Worth knowing

    Built by a Slovenian team that ran a translation agency first, giving it an in-house network of certified human linguists.

    • translation
    • documents
    • localization
    • human-review