Microsoft Translator

What is Microsoft Translator?

Microsoft Translator is Microsoft’s translation service for text, speech and images, offered both as free consumer apps and as Azure AI Translator, a paid cloud API for businesses. The two share the same family of neural translation models but are sold and used very differently.

Consumers install the iOS or Android app to translate typed text, spoken phrases, photos of menus and signs, and split-screen face-to-face conversations. Microsoft’s site says you can download offline packs and translate without a connection. The App Store listing describes support for over 100 languages, and one 2026 consumer guide counts 129.

Developers and enterprises use Azure AI Translator through REST APIs, SDKs, the Foundry portal or containers. Microsoft Learn lists text translation, synchronous and batch document translation, Custom Translator models and a newer adaptive custom translation option that can tune supported large language models. One change matters for consumers: the App Store notes say the multi-device conversation feature has been retired, and a 2026 guide dates that to 30 June 2026.

Key Features

Breadth across formats defines Microsoft Translator, covering typed text, speech, camera images, documents and an API from one Microsoft service.

• Text and voice translation: The mobile apps translate typed or spoken input and can read results aloud. Real-time speech translation helps when you need a quick answer at a station, hotel desk or shop counter.
• Camera translation: You can photograph a menu, sign or document and see the translated text. The latest App Store update adds automatic language detection for images and lets you switch between original and translated views.
• Split-screen conversation: A split view shows each speaker’s translation on one phone placed between two people. This replaces the retired multi-device mode for most face-to-face chats between two travellers or colleagues.
• Offline packs: Microsoft says you can download offline translation packs before a trip. This keeps basic translation working without mobile data, which matters when roaming costs are high or signal is weak.
• Document translation API: Azure supports synchronous single-file translation and asynchronous batch jobs that preserve layout. Batch jobs use Azure Blob storage, and both modes accept glossary files to control key terms.
• Custom translation: Custom Translator builds domain-specific models from your own bilingual data. The adaptive option accepts between 5 and 10,000 aligned segment pairs and builds a custom index in minutes, according to Microsoft Learn.

Pros

Zero cost for travellers is Microsoft Translator’s clearest advantage: the iOS app is free with no in-app purchases and holds a 4.8 rating from about 158,000 App Store reviews.

• Free consumer apps: The App Store listing shows no price and no in-app purchases. Travellers and students get text, voice and camera translation without signing up for a subscription.
• Wide language coverage: Over 100 languages are supported, according to the App Store listing. That covers most travel destinations and many less common language pairs that smaller apps skip.
• Works offline: Downloadable language packs keep translation available when you have no mobile data at all. Hikers, cruise passengers and frequent flyers benefit most when they cannot rely on a mobile connection.
• Generous API free tier: Azure’s F0 tier includes 2 million characters each month at no charge to the account holder. Developers can prototype and run small production workloads before paying anything.
• Enterprise deployment options: Azure offers REST APIs, SDKs, connected containers and disconnected containers. Regulated organisations can keep translation inside controlled environments rather than sending text to a public app.

Cons

Losing group conversations hurts Microsoft Translator most, because the multi-device mode that let several people join one translated chat has been retired.

• Multi-device mode retired: The App Store notes confirm the multi-device conversation feature is gone. Classrooms, tour groups and meetings that relied on it need another tool, such as live captions in Microsoft Teams.
• Machine translation limits: Neural translation can miss idioms, tone and technical terms. Legal, medical or contractual text should always be checked by a qualified human translator before anyone relies on it.
• Azure pricing is complex: Azure lists separate meters for text, documents, custom training, model hosting and commitment tiers. Budgeting takes care, and the official pricing page can fail to show prices without scripts.
• Developer skills needed: The API, document translation and Custom Translator need an Azure account and some technical setup. Non-technical teams usually need IT help before using the business features.
• Uneven consumer platforms: Microsoft’s apps page still references Windows, but the mobile apps receive the visible updates. Desktop users may find browser-based tools more convenient for everyday translation.

Who is Using Microsoft Translator?

Travellers and app developers make up most of Microsoft Translator’s users, with the free mobile apps on one side and the Azure API on the other.

• Travellers: Holidaymakers use camera, voice and offline packs abroad. They translate menus, signs and short conversations without paying for an app.
• Developers: Engineers call the Azure API from websites, apps and chatbots. The free tier covers testing before usage-based billing begins.
• Enterprises and localisation teams: Companies translate documents in bulk and train custom models. Glossaries keep product names and regulated wording consistent across languages.
• Students and language learners: Learners check meanings and hear pronunciation in the free app. They should treat output as a guide, not a substitute for study.

Pricing

Consumer apps cost nothing, while Azure AI Translator gives 2 million free characters monthly and then charges $10 per million for standard text (Azure retail price list, October 2026).

These US East figures come from Microsoft’s Azure retail price list, because the Azure pricing page did not display amounts when read; regional prices can differ.

Disclaimer: Azure meters and regional rates change from time to time, so run your expected volume through the Azure pricing calculator first.

What Makes Microsoft Translator Unique?

The same provider serves a free pocket app and an enterprise API, with document translation, custom models and offline containers. Few rivals cover a backpacker checking a menu and a bank translating contracts in a sealed environment under one brand.

Customisation is the other differentiator. Glossaries, Custom Translator and adaptive custom translation let organisations steer terminology and style, which general consumer apps rarely allow.

Compatibilities and Integrations

iPhone, Android and Microsoft’s own services are the main homes for Microsoft Translator, with Azure APIs covering custom software.

• Mobile apps: Free apps run on iOS 17 or later and on Android. The iOS app interface itself is available in 24 languages.
• Microsoft services: Microsoft’s apps page lists an Outlook add-in for translating emails, alongside a web conversation page and a Windows reference.
• Azure API and SDKs: REST APIs, SDKs and the Foundry portal support text and document translation. A new text translation API version, 2026-06-06, is now generally available.
• Containers: Connected and disconnected containers let organisations run translation in their own environments for data control or offline sites.

Microsoft Translator Tutorials

Downloading offline packs before you travel is the single most useful habit with the Microsoft Translator app.

1. Install the free app from the App Store or Google Play.
2. Choose your source and target languages, or let the app detect them.
3. Download offline packs for the languages you will need abroad.
4. Type, speak or point the camera at text to translate it.
5. Use split-screen view for face-to-face chats with one other person.
6. For business use, create an Azure Translator resource on the F0 tier and test the API.

How We Rated It

Free apps and a low-cost API push Microsoft Translator to 4.2 out of 5, held back by the retired group conversation mode and complex Azure meters.

Summary

Microsoft Translator suits travellers who want a free, offline-capable phone translator and developers who need a dependable translation API with a generous free tier. Its main limitation is the loss of the multi-device conversation mode, which makes it weaker for group settings than it once was. Machine translation also needs human review for anything legal, medical or contractual. Businesses get strong customisation through glossaries and custom models. Before a trip, download offline packs for every language you expect to need and test camera translation at home.