App Localization
The best 50 App Localization AI tools - Free & Paid
Explore 50 AI for App Localization
Globify harnesses GPT‑4 to automate iOS app localization within a single project, allowing multiple languages, custom tones, glossary consistency, and direct string‑catalog sync. Its “Localize all” button enables bulk translation, speeding releases.
Freemium
Localazy is a localization tool that streamlines translation management for various formats and frameworks, offering automated workflows, translation memory, quality control, and collaborative features, enhancing efficiency in creating and releasing localized content.
Free trial
I18n Studio uses GPT‑4 to deliver context‑aware translations for common localization formats. It supports comment-based context, skip markers, and capitalization rules, and integrates with Xcode, VSCode, Android Studio, enabling batch translation of individual values, keys, or whole languages.
Freemium
An AI‑powered browser tool that translates app content into over 200 languages while keeping data local. It supports JSON, YAML, JavaScript, and TypeScript files, letting developers import, edit, and bulk‑export translations without sending data to external servers.
Paid
AI Localizer auto‑detects localizable strings in Xcode projects, translating them into 35+ languages via AI, Azure, Google, or manual input. Integrated in Xcode, it saves translations with one click, preserves structure, and allows CSV export for review.
Freemium
AI Phone delivers real‑time bilingual subtitles and voice translation for phone, video, and messaging calls in 150+ languages, with instant camera‑text support for signs and menus. Invite contacts via a link—no extra download needed for seamless communication.
Free trial
String Catalog connects GitHub/GitLab/Bitbucket repos to manage iOS/Android strings, release notes, and store metadata. It imports native files, applies automated translations, and produces reviewable diffs with glossary and tone rules for brand consistency.
Free trial
- $15
1aicall.com is a real-time phone call translator app that enables seamless multilingual conversations across 100+ languages by capturing spoken input and rendering translated audio with preserved tone, tone, and sub-0.5s latency, while the other party receives a normal call without needing the app.
Freemium
LocalizeBot is a macOS app that streamlines iOS/macOS localization by accepting XLIFF/XCLoc files via drag‑and‑drop, providing one‑click translation with OpenAI or Google Cloud, and integrating directly into Xcode with Apple Glossaries for consistent UI terms.
Freemium
OneSky Localization Agent (OLA) is an AI-driven multi-agent platform that leverages multiple large language models (LLMs) to deliver contextually accurate translations for web, apps, and digital content. It simulates human roles—translators, reviewers, and editors—while enabling real-time monitoring
Free trial
Locales.ai offers AI‑powered localization, translating documents into 30+ languages. The platform supports a 3‑step workflow—import, AI‑translate with smart memory, download—while integrating diverse file formats and frameworks for real‑time, culturally accurate updates across websites and apps.
Freemium
- $1
i18n Web uses AI to translate JSON, Markdown, and plain text files into multiple languages while keeping original structure. Users upload files, pick target languages, review translations in an editor, and download individually or as a bundle.
Free
Unbabel is a LangOps platform combining machine translation, human post-editing and AI-only options (TowerLLM/Widn.Ai) to centralize translation workflows, integrate with CRMs, manage reviewers and contributors, and track translation quality and throughput.
Freemium
Ollang is a localization platform that automates dubbing, subtitles, closed captions and metadata in 100+ languages, combining studio-quality voice workflows, agentic AI orchestration, no-code project automation, and an API for scalable video, audio, and text localization.
Freemium
OpenL Translate converts text, PDFs, images, and audio into 100+ languages, supporting dialects and emojis. Fast mode delivers short translations; Advanced mode offers precision for legal documents. It handles 150k characters and 40 scanned PDFs daily, processing locally for privacy.
Subscription
i18nowAI automatically translates i18next JSON files into over 80 languages via DeepL, delivering fast, accurate JSON outputs for React, Vue, and Next.js projects. Users upload source files, select target languages, and re‑translate only changed lines.
Freemium
- $9/mo
Setapp is a subscription-based library that bundles curated macOS and iOS apps for productivity, creativity, and maintenance. It provides automatic updates, compatibility checks, guides, and an ad‑free experience for individuals and small teams.
Free trial
- $10.88/mo
Appen delivers human‑validated datasets across six domains—alignment, agentic AI, speech/audio, multimodal, physical, and model integrity—using automation and a global workforce of 1 million+ contributors. SOC 2/ISO 27001 certified, it supports large‑scale AI training and independent evaluation.
Freemium
Translate Menu is a smartphone app that captures printed menus and instantly translates them into 50+ languages. It provides personalized dish suggestions, accounting for preferences and dietary restrictions, using OCR and NLP for real‑time, accurate translations at restaurants worldwide.
Freemium
Xpolyglot is an AI‑driven localization utility for Xcode projects that integrates into the development workflow. It imports projects with a single click, centralizes all localization tasks, and keeps translation files synchronized using delta updates to avoid re‑translation of unchanged strings.
Paid
Lingvanex delivers on‑premise machine translation and speech‑to‑text for over 100 languages, with APIs, SDKs, desktop and mobile apps, enabling secure, offline multilingual content processing, summarization, and data anonymization for business intelligence and compliance.
Freemium
ChatCulture delivers instant translation for chat, voice, AR, camera, and documents in 77+ languages with automatic language detection. Users can toggle to the original text, practice with AI Pal personas, and enjoy a clean interface that updates regularly.
Freemium
Captions App is an AI tool that simplifies adding subtitles and captions to videos with auto-generation, translation, and customization options. It also offers AI dubbing in over 100 languages, enabling creators to enhance accessibility and engage a broader audience effortlessly.
Freemium
TacoTranslate automates React and Next.js i18n by extracting UI strings from code and providing AI‑driven translations in 70+ languages. It updates text live, lets teams toggle languages, and offers a translator interface for refinement and incremental rollout.
Paid
- $99/mo
Web‑based grammar checker supporting 27 languages—including Tagalog and English variants—highlights spelling, grammar, punctuation errors and offers corrections. It accepts rich text up to 15,000 characters, detects GPT‑style typos, and includes an AI content detector, usable from any browser.
Free
Alice is an AI assistant for macOS, Windows, and Linux that launches via hotkey, stores context locally, supports multiple LLMs through API keys, offers keyboard shortcuts, custom commands via Zapier/Make, and handles files, web, images, and visuals for reliable responses.
Paid
- $99
Pinch is a real-time voice translation tool supporting ten languages, featuring automatic language detection, live transcription, and app integration. It enhances communication in multilingual settings, ideal for professionals and travelers using macOS without special hardware.
Free trial
hellogpt官网 is a real-time AI translation and localization platform supporting 100+ languages, including low-resource ones, for documents, images, and cross-platform workflows. It offers context-aware multi-turn translation, enterprise APIs, and privacy-focused local processing for seamless integrati
Freemium
Ai Translator compares 22 AI models via its SMART feature to produce the most agreed translations, offering over 100 languages and regional dialects. It auto‑detects source language, accepts text or files, and provides instant quality feedback and real‑time accuracy analytics.
Freemium
- $39/mo
BookTranslator automatically translates entire books into 168+ languages, preserving tables, images, and formatting across EPUB, PDF, DOCX, etc., within minutes. It offers side‑by‑side comparison, supports up to 300 MB files, and delivers instant downloadable copies.
Freemium
Language Reactor enhances language learning with dual subtitles, a popup dictionary, and precise video controls on Netflix. Features like Turtle Tube, machine translation, vocabulary suggestions, PhrasePump, and a chatbot support interactive and immersive learning experiences, making it a valuable t
AppFlowy unifies projects, wikis, and team collaboration across devices, offering AI assistants for writing, Q&A, and database insights. It runs local models for privacy, supports custom views, cross‑platform use, Zapier integration, open‑source plugins, and self‑hosting.
Free
Enclave AI runs large language models on Mac and iPhone, keeping all text, voice, and document processing offline. It supports on‑device speech recognition, synthesis, and custom assistants, with local, encrypted conversation history and PDF summarization, ensuring privacy.
Freemium
- $9.99/mo
Privacy AI is an offline application for iPhone, iPad, and Mac that provides access to advanced language models while ensuring data privacy. Users can customize settings for personalized interactions, maintaining control over their sensitive information.
Freemium
- $0.99
SpeakPal AI offers real‑time conversation practice in 30+ languages with adaptive tutoring, instant grammar correction, and pronunciation coaching. Users can download lessons, earn QR‑coded certificates, and educators access teen‑safety mode, all syncing across web, iOS, and Android.
Free trial
Telelingo is a mobile app that delivers real‑time voice translation for phone calls in 80+ languages. It converts spoken speech to text, outputs instant translated audio, and integrates with PBX, mobile phones, and landlines for business and travel use.
Freemium
- $0.22
LingoExpress is a multilingual learning tool covering 65+ languages. It provides books, audio content, daily words, AI tutoring, and caters to various learning styles on Kindle and smartphones, making language learning effective and enjoyable for all ages.
Free
Translation Strings is an AI-powered tool for app developers, simplifying translation management. It offers auto-translation and context customization, enabling seamless export of translated strings in JSON format or via API integration.
Freemium
LingoSub lets learners watch videos in their target language with AI‑generated subtitles and translations. Tap words for definitions and pronunciations, reinforcing vocabulary in context. It offers level‑appropriate content, speed adjustment, and a curated library of learning titles across multiple
Paid
AI Keyboard Assistant enhances communication by offering real-time translation, grammar correction, tone refinement, and content generation across platforms. It integrates with popular apps, improving both personal and professional communication efficiency.
Freemium
Translate.Photo uses AI to instantly translate JPEG, PNG, and JPG images into 75+ languages. Integrated plugins for Photoshop, Illustrator, InDesign, Figma, and Word keep original layout intact. Custom glossaries and translation memory preserve branding while speeding localization.
Freemium
- $59/mo
PLAI is an AI-powered optimization tool for JavaScript apps, boosting performance. It simplifies user login across platforms, providing versatile sign-in choices for enhanced UX and smoother development.
Freemium
I18nMaster utilizes GPT technology to simplify internationalization processes by supporting various file formats and integrating with OpenAI for enhanced functionality, ensuring efficient and seamless multilingual content management.
Freemium
Superapp generates production-ready native Swift iPhone apps from plain-English descriptions, using AI to design screens, assemble Swift code, and guide App Store publishing—enabling non-developers to build prototypes, MVPs, and native App Store releases without manual coding.
Subscription
- $25/mo
BoldVoice is an AI-powered American accent coaching app that provides personalized video lessons and instant pronunciation feedback. It adapts training to your native language and offers daily practice with detailed scoring to target specific accent reduction goals.
Freemium
worldmonitor.app is a real-time global intelligence dashboard that overlays live signals from 500+ feeds and 65+ data providers onto an interactive map. It correlates geopolitical events, infrastructure outages, and sensor alerts with market movements for analysts, traders, and risk managers.
Freemium