The vocabulary app that lives in your Telegram
Five minutes of vocabulary practice a day, with your own English words. The bot brings words back on schedule, shows a card for every new word and checks the sentences you write or say. Nothing to install.
Works on your phone and computer, wherever you have Telegram.
📖 serendipity — finding something good by chance
❓ Give me two or three sentences of your own with this word.
Yesterday I find a great café by pure serendipity.
👤 What to correct: find → found. With “yesterday” you need the past tense.
How vocabulary practice works
Add your words.
Connect your InterSub dictionary, upload a CSV or Excel file, paste a list, or pick a ready topic.
Practice in short sessions.
The bot messages you at the times you choose. A session takes 3–5 minutes: reviews first, then new words.
Write your own examples.
For every new word you write two or three sentences, by text or voice. The AI tutor shows what to fix and why.
Words from the videos you watch and the sites you read
InterSub is a Chrome extension with dual subtitles and a translator for any website. Subtitles work on YouTube, Netflix, Prime Video, Crunchyroll, Udemy, Coursera and other sites. Save a word while you watch or read, and it comes to the bot for practice.
The bot doesn't connect to these sites itself: it takes the words from your InterSub dictionary. More about the extension at intersub.cc.
A card for every new word
Meanings in your language, examples in English, a phrase with a translation, the transcription and a 🔊 button to hear the word. Some words also get a short fact about the word or its origin.
An AI tutor that checks your sentences
You see your version, what to correct and the corrected version, and then type it yourself, so the word sticks. Ask the tutor about a word or grammar at any moment, by text or voice.
Ready topics when you have no words yet
About 3,300 English words: 13 topics and a core set of 500 common words, from A1 to C2. A quick check of familiar words lets the bot start with the ones you don't know.
Reviews at the right moment
Spaced repetition brings each word back at growing intervals, so a few minutes of daily vocabulary practice is enough. Reminders come at the times you pick, never during your quiet hours.
User review
It's really handy that the bot is flexible and can even answer outside a strict script.
bot user, October 2026 · translated from Russian
Questions about the vocabulary app
Is it an app I need to install?
No. It's a Telegram bot: open it and start. It works in the Telegram apps on your phone and computer, and in Telegram Web.
Is it free?
Yes, the bot is free.
Where do the words come from?
From your InterSub dictionary, a CSV or Excel file, a list you paste into the chat, or ready topics. You can also add a single word right in the chat.
Do I need InterSub?
No. InterSub is one source of words. You can upload a file, paste a list or choose a topic instead. On the free InterSub plan, access to saved words is limited.
Can I answer by voice?
Yes. Send a voice message: the bot shows what it heard and checks it like text.
What language are the explanations in?
In the language you choose: Russian, Ukrainian, Spanish, German and others. The ready topics are English words.
How do I delete my data?
Send /delete: the bot deletes your account and all your data at once.
Didn't find your answer? Write to us
Start your vocabulary practice today
Open the bot, add a few words and do your first session in five minutes.
Open in Telegram