Clozemaster is a game where you fill in the missing word in thousands of real sentences, in more than 50 languages. Bubblegum is a reading and listening app. Poppy, your AI tutor, writes whole lessons at your level about subjects you pick, and the words you save come back in new lessons.
How Clozemaster and Bubblegum Compare
Clozemaster gives you one sentence at a time with a word to find, and Bubblegum gives you a whole conversation or story to follow.
| Clozemaster | Bubblegum | |
|---|---|---|
| How you learn | Fill in the missing word in real sentences, by choosing or typing it | Poppy writes lessons, stories, and news at your level, and you read and listen |
| How words come back | Sentences come back for review with spaced repetition | Regenerative Review™: saved words come back in new lessons |
| Who it's for | Learners from A2 to C1 | From your first words onward, across six levels |
| Phone apps | iPhone and Android | iPhone and Android |
| On the web | Play at clozemaster.com | Free guides and alphabet courses |
| Languages | 50+ | 60 |
| Menu languages | 37 on its iPhone listing | 74 |
Clozemaster also offers more than 170 language pairings. Bubblegum's 60 are on its list of languages, and its menus come in 74 languages.
Who Each App Is Best For
Clozemaster
Clozemaster is built to answer the question "What should I do after Duolingo?" Its sentences come from Tatoeba, a large shared set of sentences and translations, and it offers listening and speaking modes too. It works well for learners who know some basics and want to learn lots of new words fast.
- Learn words inside real sentences, sorted so the most common words come first.
- Answer by choosing from a list, or type the word for an extra challenge.
- Tap Explain after a wrong answer for a grammar explanation.
- Score points and see how you do on a global leaderboard.
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Bubblegum
Bubblegum is the best app for serious learners. You learn from text and audio you can mostly understand, which is called comprehensible input.
Tell Poppy, your AI tutor, about a topic you enjoy, like baking bread or a trip to the beach. She writes a lesson for your level, and each new word comes inside a conversation that shows what it means. You can read it and listen to it, and ask her about anything that's unclear.
The trade-off is that Bubblegum isn't a fast game of short drills. For quick rounds that test lots of words in a few minutes, Clozemaster is the better choice.
- Poppy writes full lessons at your level, so new words come with a story around them.
- Listen to every lesson, and read stories and news when you want a change.
- Tap a word to look it up, and ask Poppy why a line is built the way it is.
- Regenerative Review™ puts saved words into new lessons, so you read them again in new contexts.
- Clear, expressive AI voices read every lesson aloud, with a different voice for each speaker.
- It isn't a game of quick fill-in-the-blank rounds.
- You can't add sentences or texts of your own.
- A new custom lesson costs us real money to make, so your first one is free, and Bubblegum Pro gives you unlimited custom lessons. The lesson library is free for everyone, because we believe everyone should be able to learn.
- Regenerative Review™
Mobile
Choose Clozemaster if:
- You know the basics and want to learn many more words quickly.
- You enjoy quick fill-in-the-blank rounds that score points.
- You'd like to learn from a language other than English, from its 170+ pairings.
Choose Bubblegum if:
- You're just starting and want lessons you can follow from the first level.
- You'd rather read whole conversations and stories than single sentences.
- You'd like Poppy to explain any line and write about topics you choose.
Using Both Together
Clozemaster helps you learn lots of common words fast, and Bubblegum shows you words like them again in longer lessons you read and hear. Mix short rounds and full lessons across your week.
Common Questions
Which app should a beginner choose?
If you are serious about learning a language, start with Bubblegum. Poppy writes lessons at your level about things you like. Or try Clozemaster once you know the basics, since it's made for learners from A2 to C1.
Does Bubblegum use flashcards?
No. When you save a word, Bubblegum brings it back inside a new lesson. Each review is more reading, and you see the word used in a fresh sentence.
Is Bubblegum free?
Yes. The lesson library is free for everyone, because we believe everyone should be able to learn. It holds lessons that other learners asked Poppy for. A new custom lesson costs us real money to make, so your first one is free, and Bubblegum Pro gives you unlimited custom lessons.
Sources
- Clozemaster: Fill-in-the-blank sentences in 50+ languages
- Clozemaster: About, sentences sorted by how common the word is
- Clozemaster: Frequently asked questions
- Clozemaster: iPhone App Store listing
- Bubblegum: Every language you can learn
- Bubblegum
Checked on October 14, 2026 against each app's own pages.
