01Strict mode
Coach first. Send second.
Press Enter and your message goes to the coach first. If there are errors, sending waits while you see what needs fixing.
WhatsApp
E
Emmaonline
Can you send me the report today?
Type a message
An AI coach alongside your chat
Chat as usual.
Learn with every message.
MustHave.talk reviews each message before the other person reads it. It spots mistakes, explains corrections, and helps you say exactly what you mean.
Get itTelegram
A
Alexonline
Message
- ChatGPT
- Claude
- Grok
- DeepSeek
- Gemini
- Telegram
- Discord
Features
Mistakes explained. Suggestions that fit.
02Intent mode
Is that what you meant?
Express your idea in your native language, then write it in English. Your coach compares the meaning: correct grammar doesn’t always mean you said what you intended.
Telegram
N
Noahonline
What do you want to say? Write the thought in your language
HelpMessage
WhatsApp
N
Ninaonline
You look busy. Need anything?
Type a message
03Phrase Help
Find the words you need.
The “?” appears next to your input as you type. Write a word or phrase in your native language for natural options and explanations of when each one fits.
Googlehow to save money on groceries
budgetkitchen.example.com
10 easy ways to spend less on food
Buying in bulk can save you a pretty penny over the year, especially on rice, pasta, and frozen food.
moneytips.example.com
Smart grocery shopping on a budget
Plan your meals for the week, write a list, and avoid shopping when you're hungry.
familyfood.example.com
Cheap dinners the whole family will love
Simple recipes under five dollars a serving, with tips for using leftovers.
04Explain Selection
What does it mean here?
Select an unfamiliar phrase in an article, document, or chat and click the spark. Your coach explains what it means in the surrounding context.
Lessons
Talk to the coach on any topic.
By voice or by text.
Pick a real-life situation or a grammar topic — the coach leads the conversation and corrects mistakes as you go.
- A2Start lesson
Ordering at a coffee shop
Order a drink, pick a size, and pay.
- B1Start lesson
Present Perfect vs Past Simple
When it’s “I’ve done it” and when it’s “I did it yesterday” — with real-life examples.
- B2Start lesson
Job interview
Talk about yourself and your experience, and handle tricky questions.
Back to your everyday chat
No extra buttons.
Just chat as usual.
Choose where to start. Your coach will pick up your messages and join the conversation automatically.
- Browser extensionYour coach next to your chats in the browserSoon
- Android appYour coach, always at hand on your phoneSoon
- Custom Telegram client with integrated musthave.talkQuick start: all features and the panel are built inOpen
- AI chatbotsRegular AI chatbots right on the websiteOpen