Translating a sign, understanding a menu, or asking for directions without mobile network: the need is real as soon as you land. Offline translation apps rely on language packs downloaded in advance, with size, language coverage, and available functions without a connection varying greatly from one app to another.
This ranking is based on three criteria: the number of languages actually usable offline, the available input modes (text, voice, camera), and privacy considerations, meaning the handling of data on the device or via the cloud.
1. Google Translate – the largest offline catalog
Google Translate remains the app that offers the largest number of downloadable languages for offline use. Each pack weighs between a few dozen and a hundred megabytes, allowing multiple packs to be stored without saturating the phone.
The camera mode works offline to translate printed text in real-time, a concrete advantage when facing an administrative form or a road sign. Voice input is also accessible offline, although accuracy lags behind the connected mode.
On the downside, offline translations rely on lighter models than those used online. For long sentences or idiomatic expressions, quality noticeably decreases. Choosing a free offline translation app suited to one’s destinations requires comparing these performance gaps.
2. Microsoft Translator – group conversations without a network
Microsoft Translator stands out with its multi-device conversation feature. Multiple people can join a shared translation session, each in their own language, which remains unique among free apps.
The group conversation also works offline if the relevant language packs have been downloaded in advance. Camera translation and voice input are also available without a connection.
However, the number of downloadable languages offline is more limited than that of Google. For less common languages, Microsoft Translator redirects to its servers, making it unusable without a network in certain Southeast Asian or African countries.
3. Apple Translate – total privacy on iPhone
Natively integrated into iOS, Apple Translate offers a fully local mode that does not transmit any data to servers. Texts, voice recordings, and images remain on the device, a significant argument for travelers concerned about the privacy of their exchanges.
The app manages real-time voice translation offline with notable fluidity, especially for the most common language pairs (English-French, English-Spanish, English-Chinese). System integration also allows direct translation from Safari, Mail, or Messages.
The main limitation remains the language coverage, significantly lower than that of Google or Microsoft. Apple Translate is also not available on Android, which excludes a large portion of users.
4. Naver Papago – the specialist in Asian languages
Developed by the South Korean giant Naver, Papago excels in language pairs involving Korean, Japanese, and Chinese. The translation quality for Asian languages often surpasses that of generalist competitors, thanks to models specifically trained on these corpora.
The offline mode covers major Asian languages as well as English, French, and Spanish. Camera translation works without a connection for Korean characters, Japanese (kanji and kana), and simplified Chinese.
For a trip to Japan or South Korea, Papago is a more relevant choice than Google Translate for idiomatic expressions and politeness levels, two aspects where generalist translators struggle.
5. iTranslate – paid but comprehensive offline version
iTranslate offers a limited free version and a Pro version that unlocks offline mode. The nuance is worth noting: offline translation is only accessible via the Pro subscription, making it a semi-free option in this ranking.
Once the packs are downloaded, the app provides text and voice translation without a connection, with an integrated thesaurus. The interface remains among the most user-friendly on the market.
The freemium model limits interest for occasional travelers. For those who translate regularly in a professional context, the subscription cost is justified by the richness of the offline dictionaries.
6. Mova – 100% local AI translator
Mova is part of the new generation of apps that emerged in 2025-2026 with a focus explicitly on privacy. The translation model runs entirely on the device, with no data sent to external servers, even for voice and photos.
This architecture ensures that professional conversations or sensitive documents never leave the phone. Real-time voice translation works entirely offline, a technical advancement that was not feasible before 2024.
- Text, voice, and camera translation without connection or cloud transfer
- Embedded AI model updated during Wi-Fi connections
- Language coverage still limited compared to historical apps
The trade-off lies in the number of available languages: privacy-first apps currently cover fewer language pairs than Google or Microsoft.
7. SayHi Translate – instant voice translation while traveling
SayHi Translate focuses on bidirectional voice translation. Two people speak in their respective languages, and the app translates aloud in the interlocutor’s language. The split-screen interface facilitates face-to-face exchanges with a merchant, driver, or administrative agent.
Offline support depends on the languages: the most common pairs work without a network after downloading the voice files. For less common languages, a connection remains necessary.
SayHi remains relevant for travelers who prioritize oral communication over text. Its ease of use compensates for a less extensive offline language catalog than that of Google Translate or Microsoft Translator.
The choice between these seven apps depends on the type of trip and the targeted languages. Google Translate covers the widest spectrum, Apple Translate protects data, Papago excels in Asian languages, and apps like Mova pave the way where offline translation means zero data collection. Downloading language packs before departure remains the only step not to forget.