A free Relingo alternative for sentence-level immersion
Relingo and Phrase Flip both turn everyday web reading into language practice, without making you sit through flashcard drills before you can read an article. They take very different routes, though: Relingo highlights individual vocabulary words by proficiency level and adds bilingual video subtitles, while Phrase Flip translates whole sentences on your device for free.
The short version
| Phrase Flip | Relingo | |
|---|---|---|
| What gets translated | Whole sentences | Highlighted vocabulary words (plus optional full-page translation) |
| Where translation runs | On your device | Cloud translation and AI engines |
| Account required | No | Yes, to save words and sync |
| Price | Free | Free (up to 50 saved words); Premium around $3–$4/month or pay-as-you-go credits |
| Browsers | Chrome, Safari on Mac, iPhone and iPad | Chrome, Edge, Firefox, Safari |
Whole sentences vs level-based word highlighting
Relingo matches words on a page against vocabulary lists (such as CEFR, IELTS or TOEFL levels) or your own saved word list, and shows translations inline for those words. It also supports dual subtitles on YouTube and Netflix and exports saved words to Anki.
Phrase Flip focuses on one thing: reading complete sentences in context. Knowing individual words from a CEFR list is only half the battle—fluency comes from seeing how a language orders clauses, conjugates verbs and connects ideas across a real sentence. Phrase Flip flips a percentage of the sentences on the English pages you're already reading, controlled by a simple intensity slider. Hover over any flipped sentence (or tap it on a phone) to see the original English.
Privacy and accounts
Phrase Flip translates on your device and does not send page text away for translation. There is no account to create and no analytics.
Relingo syncs your vocabulary library across devices and uses cloud and AI translation services, which requires an account and sends translated text to remote servers.
Price
Phrase Flip is completely free, with no word limits, credit packs or subscriptions.
Relingo's free tier lets you save up to 50 words and 50 example sentences. Unlimited saved words, full-text translation, Anki exports and AI grammar breakdowns require a Relingo Premium subscription or pay-as-you-go AI credits.
Which one should you pick?
Pick Relingo if you want vocabulary highlighted by exam level (CEFR, IELTS, TOEFL), bilingual subtitles on YouTube and Netflix, or Anki flashcard exports.
Pick Phrase Flip if you want to read full sentences in context during your normal browsing, want page text to stay on your device without an account, and want a tool that is completely free.
You can try the interactive demo on the Phrase Flip homepage, get Phrase Flip on the App Store for Safari (Mac, iPhone and iPad), or add Phrase Flip to Chrome.