Clozemaster vs Wordie: Fill-in-the-Blank Drills or Words From Your Reading?

Clozemaster and Wordie both aim at the same stage of learning: the point where you know the basics but still trip over thousands of less common words. They approach it from opposite sides. Clozemaster brings the sentences to you: it serves thousands of fill-in-the-blank sentences in your target language, ordered roughly by word frequency, with spaced review. Wordie works from your own reading: select an English word on any web page, see its definition and synonyms, save it, and it is highlighted everywhere it appears again. For high-volume practice in a foreign language, Clozemaster is the better choice. For capturing the English words you personally meet, Wordie fits better.

Quick verdict: who should pick which?

• Choose Clozemaster if you are an intermediate learner of Spanish, Italian, Japanese or one of its many other languages, you want a lot of practice in short bursts on your phone, and you like a game-like format with points and streaks.
• Choose Wordie if your target is English, your unknown words come from articles, research or work documents, and you want help in the browser exactly when you meet them.
• Use both if you are practicing a foreign language with Clozemaster and also reading English online.

What is Clozemaster?

Clozemaster is built on cloze deletion: a sentence with one word blanked out. You fill the gap by typing it or choosing from options, see the translation, and move on. Its main mode, Fluency Fast Track, matches sentences against a frequency list and blanks out the least common word in each, so you work from frequent words towards rarer ones. Many of its sentences and translations come from the open Tatoeba collection. Sentences you answer correctly move through mastery stages (25%, 50%, 75%, 100%) and return at spaced intervals, from a day up to months. There are also listening, reading and grammar-focused modes, and apps for iOS, Android and the web. It offers more than 50 languages, including many language pairs that bigger apps ignore.

What is Wordie?

Wordie is a small Chrome extension (also Edge, Brave and Arc) from an independent maker. Select a word on a web page and a card shows its English definition, part of speech, synonyms and related words. Save it and Wordie highlights it on every page you visit. Recall mode turns your vault into flashcards rated Forgot, Hard or Easy, which update a 0–100% mastery score. The dashboard lists your words, lets you add words manually, shows 7-day analytics and exports to CSV or JSON. It stores everything locally in your browser with no account.

Clozemaster vs Wordie at a glance

Learning approach: volume vs relevance

Clozemaster's big strength is volume with structure. Each answer is a small act of retrieval practice, which research has repeatedly shown beats passive study (Roediger & Karpicke 2006). Because every word arrives inside a sentence, you also absorb grammar and word combinations along the way. Working through frequency bands makes sense too: the most common words give you the most coverage, so learning them first is efficient.

The trade-offs are well known among users. Sentences from a shared database are sometimes odd, overly literal or unrelated to your interests, and each target word may appear only once per deck. Since you guess from the sentence, it is easy to get the blank right without being able to use the word elsewhere.

Wordie trades volume for relevance. Every word in your vault is one you met in something you chose to read, so it already matters to you. You get the meaning from a full English definition with synonyms, and then highlighting brings the word back in new sentences on other sites. That variety of contexts is what research on incidental learning (Webb 2007; Pellicer-Sánchez & Schmitt 2010) suggests deepens word knowledge. Wordie's own review is lighter than Clozemaster's: a flashcard with self-rating and a mastery score, not a full spaced repetition algorithm and not cloze exercises.

Workflow

Clozemaster

Open the app, play a round of 10 or more sentences, review any that are due, and close it. It fits well into short gaps in the day. Points, streaks and leaderboards keep many people coming back.

Wordie

Read as usual in Chrome. When a word stops you, select it, check the card, and save it if it is worth learning. Every few days, run Recall mode on your vault. No rounds to complete, no content to pick.

Privacy and data

Clozemaster is account-based, so your progress syncs between phone and computer. Wordie keeps your saved words in your browser's local storage with no sign-up and no Wordie server receiving them. That is simpler and more private, but it means no mobile access and no automatic backup, so export to CSV or JSON from time to time.

Price

Clozemaster is free to start, with a limited free tier, and a Pro subscription that unlocks unlimited play, advanced modes and adjustable review settings. Store listings show monthly and yearly options that vary by region, so check the price in your country before subscribing.

Wordie is free for up to 20 saved words, then $12.99 once for Pro (unlimited vault, full Recall, analytics), or $0.99 a month on the Student plan.

Which one suits your level?

Level matters more than features here. A rough guide:

• Beginner (A1–A2): neither is ideal as your main tool. Start with a structured course, then add Clozemaster once short sentences in your target language make sense.
• Intermediate (B1–B2): Clozemaster's frequency-ordered sentences are at their most useful here, because you are filling in the band of words just beyond the basics. For English at this level, Wordie helps once you can follow ordinary articles and only a few words per paragraph stop you.
• Advanced (C1–C2): the words you are missing are rare and specific to what you read. Generic sentence decks hit them less often, while capturing words from your own reading, as Wordie does for English, becomes more efficient. Our vocabulary size estimator gives a quick sense of where you stand.

Where Clozemaster is clearly better

• Foreign languages, including less commonly taught ones.
• Practice volume, with thousands of sentences ready to go.
• Grammar in context, since every word comes inside a sentence.
• Listening practice and audio.
• Mobile apps, sync and a proper spaced review schedule.

Where Wordie fits better

• Words that matter to you, captured from your own reading.
• Help at the moment of reading, on any web page.
• English definitions and synonyms rather than a one-word translation.
• Repeated real-world encounters through highlighting.
• No account and a one-time price.

Can you use both?

Yes. They complement each other well because one supplies breadth and the other supplies relevance.

1. Clozemaster for breadth. Play a short round daily in your target language to cover frequent words systematically.
2. Wordie for English depth. Save the English words you meet while reading, especially in your field.
3. Turn Wordie words into cloze cards if you like the format. Export your vault to CSV, find an example sentence for each word, and build fill-in-the-blank exercises with our cloze deletion generator. The sentence mining guide explains how to pick good sentences.

The bottom line

Clozemaster is a strong choice for intermediate learners of a foreign language who want a lot of structured, sentence-based practice on any device. Wordie is a focused English tool that turns your own browsing into vocabulary learning, with definitions in place, highlighting across sites, local storage and a one-time price. If you want the app to choose your sentences, pick Clozemaster. If you want to learn the words your reading throws at you, pick Wordie. For more options, see the best vocabulary apps and our spaced repetition guide.

Sources: Roediger, H.L. & Karpicke, J.D. (2006), "Test-enhanced learning", Psychological Science; Webb, S. (2007), Applied Linguistics; Pellicer-Sánchez, A. & Schmitt, N. (2010), Reading in a Foreign Language.