Sori vs Google Translate, DeepL, Mate Translate, Rememberry and Immersive Translate
All six let you highlight text on a webpage and read it in your own language. Only one of them turns that reading into a deck you actually study. Sori makes every page you visit a source of flashcards: highlight a word, get the definition, and it joins a review schedule built around when you are about to forget it. The others hand you a translation and move on.
| Sori | Google Translate | DeepL | Mate Translate | Rememberry | Immersive Translate | |
|---|---|---|---|---|---|---|
| Highlight to translate | Yes | Yes | Yes | Yes | Yes | Yes |
| Dictionary definitions | Yes, same-language and bilingual | No | No | Yes | Yes, with synonyms and antonyms | No |
| IPA pronunciation | Yes | No | No | Yes, phonetic transcription | Yes, transcription | No |
| Read text aloud | Yes, 19 languages | Yes | Yes | Yes | Yes | Yes |
| Save words for later | Yes, decks and sticky notes | No | No | Yes, phrasebook | Yes, flashcard decks | No |
| Spaced-repetition review | Yes, FSRS-5 scheduling | No | No | No | Yes, algorithm not named | No |
| Notes pinned onto the page | Yes | No | No | No | Saved cards highlighted | No |
| Lookup history | Yes | No | No | Yes | No | No |
Where Sori is genuinely different
The gap is not translation. All six translate highlighted text well enough that you will rarely notice the difference on everyday reading. The gap is that Sori is built for people learning the language, not just getting past it, so a lookup is the start of learning a word rather than the end of needing it.
Your browser becomes the flashcard deck
There is no separate app to fill in and no typing out cards at the end of the day. Press the plus button on a translation and it becomes a flashcard in a deck, with the definition, the word type and the pronunciation already on it, taken from the page where you met the word. Reviews are then scheduled by FSRS-5, the same modern algorithm behind current Anki scheduling, which estimates when each word is about to fall out of memory and shows it to you then. Mate Translate's phrasebook stores words; it does not schedule them. Google Translate, DeepL and Immersive Translate do not store them at all. Rememberry does schedule saved words, which is why it gets its own section below.
Notes stay on the page where you found them
Pin a word and it stays highlighted on that page. Come back a week later and it is still there, with the meaning a hover away and no new lookup. Rememberry is the only other tool here that puts anything back on the page, and it highlights the cards you saved; a Sori note is free text you write yourself, so it can hold the sense the word had in that sentence rather than the dictionary entry. A phrasebook, by contrast, is a separate list you have to go and visit; a sticky note lives in the context that gave the word meaning.
Two kinds of dictionary, not just translation
Sori can define a word in its own language, which is what you want when you are far enough along to think in it, or give you a full bilingual entry with word type and IPA when you are not. Google Translate and DeepL translate; they do not define.
Rememberry: the closest comparison here
Rememberry does the same thing Sori does, and does it well: translate on selection, save the word as a flashcard, review it later on a spaced schedule, with definitions, synonyms, antonyms, transcription, read-aloud and your saved cards highlighted on the pages you visit. If you are choosing between the two, the feature lists will look close, because they largely are.
The difference is in the scheduler and how much of it you control. Rememberry describes its scheduling as a smart algorithm that repeats cards at optimal intervals, without naming it. Sori uses FSRS-5 and says so: each card carries its own stability and difficulty, you grade with four buttons rather than two, and you set desired retention anywhere from 70 to 97 percent, the maximum interval, and daily limits on new cards and reviews. Once you have around 400 reviews on record, an optimizer fits the algorithm's parameters to your own history and keeps the result only if it beats the defaults. If you want a tool that saves words and brings them back, either will serve you. If you want to see and tune the schedule, that is the case for Sori.
Immersive Translate: a different job
Immersive Translate is built for reading a whole page in translation, side by side with the original, and it extends that to PDFs, ePub, subtitles and video platforms. It is very good at that, and it is not what Sori does. Sori keeps you in the original text and translates only the words you stop on, then keeps those words. One is for getting through a page you could not otherwise read; the other is for reading a page in a language you are still learning and coming away with more of it than you started with. Plenty of people have a use for both.
Install for ChromeCompetitor features above are taken from each product's own Chrome Web Store listing, checked in July 2026: Google Translate, DeepL, Mate Translate, Rememberry, Immersive Translate. All five were re-checked in August 2026 against those listings plus each product's own website and help documentation, which is where features absent from a short store blurb (such as read-aloud) are confirmed either way. If something here is out of date, tell us and we will correct it.