Quick Answer
Google Translate is the best all-rounder for travel — widest language coverage, offline packs and camera translation. DeepL gives more natural prose for European languages, and Papago is better for Korean, Japanese and Chinese. Download offline packs before you fly.
Translation apps have quietly become the most useful thing on a traveller’s phone. The difference between a good and a bad experience with them is almost entirely setup done before you leave.
Apps and How to Use Them
1. Google Translate — the default, and why
Broadest language coverage, offline packs, camera translation for signs and menus, and conversation mode. Download the language pack before you fly — it works offline only if you do.
Google Translate is the default because of coverage rather than quality – it handles well over a hundred languages, has the largest offline library, and its camera mode works on more scripts than any competitor. Quality varies enormously by language pair: European pairs are strong, and low-resource languages can produce confident nonsense. Treat it as a tool for getting the gist and for showing text to someone, not for producing sentences you cannot check.
2. DeepL — better prose, fewer languages
Noticeably more natural output for European languages. Best for writing an email or reading a document, less useful for pointing at a menu.
DeepL consistently produces more natural prose than Google for the languages it supports, which is a much shorter list concentrated on European languages plus Japanese, Chinese and a handful of others. For written communication – an email to a hotel, a message to a host – it is usually the better choice. It is weaker for travel in practice because the offline support and camera translation are more limited, so most people end up carrying both.
3. Apple Translate
Built into iOS with offline modes and on-device processing, which keeps text off external servers. Fewer languages than Google.
Apple Translate is built into iOS, works offline once language packs are downloaded, and integrates at system level – you can translate text inside other apps by selecting it, which is genuinely useful and is the main argument for it. Its language list is far shorter than Google’s. On-device translation also means nothing is sent to a server, which matters if you are handling anything sensitive. It is free and already installed.
4. Papago
Consistently better than Google for Korean, Japanese and Chinese, and the app locals will often suggest in Korea.
Papago, made by Naver, is materially better than the global apps for Korean, and generally strong for Japanese and Chinese – which is the pattern worth internalising: regional apps built by companies operating in a language usually beat general-purpose ones for that language. It handles the honorific registers in Korean that trip up other tools. Download it before a trip to Korea and keep Google for everything else.
5. Camera translation is the killer feature
Point at a menu, a sign, a station board or a medicine packet and read it in place. This is the function that changes a trip most.
Live camera translation is the feature that actually changes a trip, because the hardest daily problem is not conversation but text you cannot even read – menus, station signs, medicine packaging, ingredient lists. It works best on printed text with good contrast and struggles with handwriting, stylised fonts and vertical scripts. Steady the phone and photograph rather than using live overlay when it matters, since the still-image mode is more accurate.
6. Offline packs are non-negotiable
Download before departure. Roaming is exactly when you need translation and exactly when you may have no data.
Download the offline pack before you leave, not on arrival, and check it actually downloaded – the failure mode is discovering at an airport with no data that the app silently needs a connection. Offline quality is lower than online for every app, and camera translation offline is noticeably weaker. Packs are large, so manage storage in advance. This single step prevents most of the situations where a translation app is needed and unavailable.
7. Conversation mode, and its limits
Two-way spoken translation works well in a quiet room and poorly in a busy market. Typing is often faster and more accurate than shouting at a phone.
Two-way conversation mode works for simple transactional exchanges – directions, prices, ordering – and degrades quickly with background noise, accents, dialect, and anything abstract. It also introduces a social problem: passing a phone back and forth slows the exchange and some people find it uncomfortable. Keep sentences short, avoid idiom and humour, and confirm anything important by having the other person show you a number or a written word.
8. Save a phrase card for emergencies
Screenshot your allergies, medical conditions and accommodation address translated into the local language. Screenshots survive a dead connection.
Before you travel, translate a handful of critical phrases, screenshot them, and save the images to your favourites so they work with no battery-draining app, no data and no unlocking under pressure. The useful set is small: any allergy or medical condition, medication names, your accommodation address in the local script, I need a doctor, and I do not eat certain foods. A written card that someone can read is more reliable than a spoken translation.
9. Do not use it for anything legally binding
Contracts, visa forms, medical consent and police statements need a human translator. Machine output is good, not reliable enough for those.
Machine translation is not adequate for contracts, insurance claims, police statements, medical consent or immigration paperwork, and the risk is not theoretical – a mistranslated clause or symptom has consequences you cannot undo. Embassies maintain lists of certified translators, hospitals in tourist areas frequently have interpreters, and travel insurers usually provide a translation line. For anything you would sign at home, get a human.
10. Learn ten words anyway
Hello, please, thank you, sorry, yes, no, how much, where is, water, and the numbers to ten. It changes how people treat you more than any app.
Ten words changes how you are treated in a way an app does not: hello, please, thank you, yes, no, excuse me, sorry, how much, where is, and the numbers one to ten. The effort signals respect and it is noticed everywhere. It also covers the majority of daily interactions without reaching for a phone. Learn the local greeting conventions too, since in many countries greeting before asking anything is not optional politeness but basic courtesy.
Setting up properly before you go
Download the offline language pack at home, on wifi. This is the step people skip and then regret at an immigration desk with no signal. Check it actually works by putting the phone in airplane mode and testing a phrase.
Screenshot the essentials rather than relying on live translation: your accommodation address in the local script for taxi drivers, any allergies or medical conditions, and your dietary requirements. A screenshot works with a dead battery on someone else’s phone; an app does not.
Use camera translation for anything written — menus, signs, station boards, ingredient lists on medication. And keep expectations calibrated: machine translation is excellent for getting by and unreliable for nuance, humour or anything with legal or medical consequence.
Frequently Asked Questions
What is the best translation app for travel?
Google Translate, for language coverage, offline packs and camera translation. DeepL is better for natural-sounding written text.
Do translation apps work offline?
Yes, if you download the language pack in advance. Camera translation works offline for many languages too.
Can you rely on them for medical or legal matters?
No. Use a human translator for contracts, consent forms and official statements.
