Reverso

Where Reverso sits

Reverso is one of the oldest names in online translation — the company has been active since 1998 — and the product has grown into a suite rather than a single translator: text translation, document translation, a contextual dictionary, conjugation and synonyms, a grammar and spelling corrector, a rephrasing tool, and vocabulary practice with flashcards. The suite claims over 96 million users, and the mobile app alone reports 5 million monthly actives and more than 30 million downloads. Whatever else you can say about it, this is not an AI startup looking for product-market fit; it is a mature consumer language platform that keeps absorbing new machine translation technology.

What distinguishes Reverso from a plain translator is the dictionary layer. Translate a word and you get not one rendering but a panel of usage examples drawn from real bilingual corpora — subtitles, official documents, product descriptions — so you can see how the word actually behaves in sentences. That contextual engine, Reverso Context, launched in 2013 and remains the reason many translators keep a Reverso tab open even when they translate in something else. A recent addition, Reverso Define, is an English contextual dictionary built with a hybrid of large language models and expert lexicographers, offering definitions plus indicative translations in 26 languages.

Neural machine translation covers 25+ languages on the translation side, including Arabic, Chinese, Italian, Portuguese, Dutch, Hebrew, Turkish, and Polish, and the company keeps adding surfaces: in June 2025 the iOS app became the first third-party translator that can be set as the system default translation app on iPhones and iPads running iOS 18.4 or later. The commercial model is freemium — core translation is free without an account, and a Premium subscription (6.49 EUR per month billed annually at 77.88 EUR at time of writing; 9.99 EUR month-to-month) lifts the text and document limits across the whole suite.

What it actually does

Text translation is the front door: type or paste, get a neural translation, and see contextual examples and dictionary entries alongside it. Premium raises the per-request ceiling to 8,000 characters at once and removes the length caps on translation and correction. Document translation handles Word, PDF, PowerPoint, and roughly a dozen formats while preserving layout; the free trial grants 2,500 credits (about 2,500 words), Premium covers up to 50,000 words per year with files up to 30 MB and PDFs up to 100 pages, and the Pro tier lifts that to 200,000 words per year, files up to 120 MB, and PDFs up to 250 pages (tier details per the Reverso Documents paper presented at MT Summit 2025; the Pro plan is listed at 239.88 EUR billed annually at time of writing). One-time credit packs are available for occasional document jobs, Enterprise plans are custom with SSO, and academic licenses carry a 75 percent discount for educational institutions.

The learning and reference tools are what justify the "suite" framing. Reverso Context shows bilingual examples and now covers 160 language pairs of dictionary data with over 500,000 meanings in the mobile app; conjugation tables cover the major languages; synonyms draw on licensed dictionaries from Collins, Merriam-Webster, Larousse, LEO, Oxford, and Langenscheidt. The Correct and Rephrase tools work in English and three other languages, rewriting for tone and style rather than only flagging errors, and the vocabulary system saves words and expressions into flashcard practice synced across devices. The browser extension adds double-click translation while reading and subtitle interaction on Netflix and YouTube; the mobile apps add voice translation and scanned-document translation.

On the technology side, the vendor's MT Summit paper describes an upcoming release line introducing LLM-based translation with customizable context settings plus audio processing and anonymization features. The grammar checker's coverage — the batch record describes French, Spanish, and English — has been widening, but the core checking strength remains those languages.

My testing notes

I ran the practical things first. A long 8,000-character block translated cleanly in one request on Premium, which is the workflow difference that matters when you are moving a document rather than a sentence; on the free tier the same block had to be split. The document translator handled a formatted Word file with headings and tables and kept the layout readable in the output — not a guarantee with layout-preserving translation, and better than I expected at this price.

The contextual dictionary is where the product earns loyalty. I looked up a moderately technical term (a false-friend verb in Spanish) and the examples panel returned subtitle and official-document usages that made the correct nuance obvious in seconds — the kind of lookup where a bare dictionary would have left me guessing. In my testing the example corpus is strongest for the major European pairs; for less common pairs the panel thins out noticeably. The conjugation and synonym tools behaved as promised, and the double-click extension translation was fast enough that I left it enabled during the rest of my research.

Two rough edges surfaced. First, free-tier character limits are conservative and the interface nudges toward Premium consistently — understandable, but it means evaluating the tool seriously costs 6.49 EUR/month at annual billing. Second, large document processing was slower than a dedicated CAT tool; a 60-page PDF took long enough that I would queue such jobs rather than run them live in a meeting. The mobile app (version 15.3) being settable as the iOS default translator is a genuinely useful integration — I set it and invoked it through the system share sheet without opening the app.

Where it falls short

Quality varies by language pair, and the gap is widest where you need it least: rare pairs and specialized technical content come back less reliably, and the context examples thin out at the same time. DeepL remains stronger on European prose nuance in my comparison, and for high-stakes publication work Reverso's output wants a human pass.

The free tier is a demo ceiling: short text requests, 2,500 document credits, and periodic limits on long text. Beyond that the tool is a subscription, and the annual document allowance (50,000 words on Premium) is small for anyone translating professionally — the Pro tier exists precisely because serious volume overruns Premium quickly. Offline functionality is limited; the offline pieces cover core dictionaries on mobile, not the neural translator.

This is also not a professional translation environment. There is no translation memory, no project management, no segment-level QA workflow — translators who need those are in memoQ or Trados and use Reverso as a reference panel alongside. And while the LLM-based translation with custom context is announced in the company's own research paper, it is roadmap material at the time of my testing; I evaluated the current neural engine, not the announced one. Finally, the pricing page runs rotating promotional discounts (a 65 percent flash sale appeared during my checks), so the price you see first may not be the list price — anchor on the 6.49 EUR/month annual figure and verify at checkout.

Verdict

Reverso's strength is the combination: competent neural translation wrapped in a contextual dictionary and language-learning layer that no pure translator offers, at a consumer price, on surfaces from browser extension to iOS default translator. It is reference tooling as much as translation tooling, and for that dual role it is very good at what it does. I rate it 4.1 on the rubric — 4.0 for core functionality depth across translation, documents, and the dictionary suite, 4.2 for value given a genuinely useful free tier and 6.49 EUR/month annual Premium, 4.2 for usability across web, extensions, and apps, 3.8 for ecosystem with API and enterprise options but no CAT workflow, and 4.0 for reliability backed by 27 years in business and millions of active users. For language learners, bilingual professionals, and anyone who needs quick translations with real usage examples attached, this is the tool I keep pinned in my browser.

Sources

• https://reverso.net
• https://www.reverso.net/text-translation
• https://documents.reverso.net/Pricing.aspx?lang=en
• https://en.wikipedia.org/wiki/Reverso_(software)
• https://aclanthology.org/2025.mtsummit-2.27.pdf
• https://aclanthology.org/2025.mtsummit-2.26
• https://multilingual.com/reverso-translation-app-ios-launch
• https://chromewebstore.google.com/detail/reverso-%E2%80%93-translation-dic/onhiacboedfinnofagfgoaanfedhmfab
• https://apps.apple.com/us/app/reverso-translate-and-learn/id919979642
• https://context.reverso.net/