For everyone who wants correct American English.
You make the same American English mistakes again and again.
Your first language comes with you when you speak English. You forget "a" and "the". You leave out "is" and "are". You choose the wrong tense. This is normal — but it makes your English sound wrong, and most apps never fix it.
This app works on these mistakes directly. It shows you the rule in real sentences and then asks you to use it — so you stop making the same mistake again and again.
I am student. → I am a student.
(One countable thing needs "a" or "the" — indefinite article)
The mistakes we fix
Almost every learner makes these mistakes. We help you fix each one:
She gave me a good advice. → She gave me good advice.
(English does not count "advice" one by one — noncount nouns)
She very smart. → She is very smart.
(English always needs "is" here — linking verb be)
I live here for five years. → I have lived here for five years.
(Time up to now needs "have lived" — present perfect)
You like coffee? → Do you like coffee?
(English needs "do" in a question — auxiliary do in questions)
Is this app for you?
- You already know some English. You can make sentences, but you still make mistakes.
- You repeat the same mistakes — like a missing "a" or "the", or the wrong tense.
- You want to stop making these mistakes.
- You do not make these mistakes. (Then there is not much here for you)
- You are a beginner in English. (Learn the simple things first — then come back to us)
- You want to fix your accent or pronunciation. (This app is about grammar — not how you sound)
- You mainly want to learn new words. (This app fixes grammar, not vocabulary)
Why it matters
People notice your English very fast — at work, in emails, in interviews. Small grammar mistakes can make you look worse, even when your English is good.
In a big study, people with better writing got jobs 8% more often. When your English is clear and correct, people can see how good you really are.
This app is built on real studies about how people learn best — not on guesses.
See the studiesLearn the rule. Fix the habit.
- 1
See it first. You learn to see the correct form of the grammar rule — in real sentences.
- 2
Then fix it. You write the correct American English yourself, so the new way becomes a habit.
- 3
Come back to it. We show you each rule’s exercises again, at the right time, so you do not forget.
- 4
Practice them together. You practice different rules together. This helps you remember more.
- 5
15–20 minutes a day. Short, easy lessons that fit into your day.
What you get
Lessons built around the mistakes you really make
A clear reason for every rule, so it makes sense
Real American English for work and life — emails, messages, interviews
Short lessons every day, with practice that comes back
Questions and answers
Stop making the same American English mistakes.
15–20 minutes a day is enough.
Get started