As an app that revolutionizes traditional English learning methods, many English learners use InstaEnglish.
Total Corrections
Learners
User Rating
InstaEnglish is based on scientific evidence backed by linguistics and develops the two core skills of English speaking in the shortest time possible.
I have a dream.
Sentence Construction
Build correct sentences using proper grammar and vocabulary
/aɪ hæv ə driːm/
Pronunciation
Speak with correct pronunciation
Linguists supporting InstaEnglish

Dr. Tamra Wysocki
Northwestern University Language Pedagogy Specialist
Education
University of Chicago Linguistics PhD

Mark Temenak
Northwestern University Bilingual Speech-Language Pathologist
Education
University of Illinois-Chicago Applied Linguistics M.A. Northwestern University Bilingual Speech-Language Pathology M.S.
I've studied vocabulary and grammar, but when it comes to speaking, English just doesn't come out...
I've taken many English conversation lessons, but I don't feel like I'm improving...

InstaEnglish was developed from the challenges we faced as international students in the U.S.
Our goal is to provide the most efficient way to learn practical English and break down communication barriers.
We are dedicated to supporting every learner in pursuit of this mission.
How it works
Develop Sentence Construction Skills
The app presents a concept in your native language.
"この商品を半分にしてもらえますか?"(Can you cut this item in half?)
Express the presented concept in English.
"Can you cut half?"
The app reviews your English expressions from grammar and vocabulary perspectives.
"Can you cut this item in half?"
Problem:"cut half" sounds unnatural as it means "cut the half".
Solution:Use "this item" as the object of cut, and express "in half" correctly as "Can you cut this item in half?"
When you express correctly in English, the words you used are recorded as your "Active Vocabulary = words you can use correctly".
Master 2,000 words that cover 90% of daily conversation!
The app automatically selects problems to maximize your Active Vocabulary growth at the fastest pace!
By repeating this process, your "English construction skills" will grow rapidly!
Master Correct Pronunciation
When solving instant English composition, your pronunciation is recorded.
The app evaluates accuracy at the phoneme level for your recorded pronunciation.
Identify incorrect pronunciations and practice individual pronunciation repeatedly.
By repeating this process, your "pronunciation skills" will grow rapidly!
User Reviews
See what our users are saying about their learning experience
I can brush up on English expressions that suit me. I used to think English was fine as long as it got the message across, but now I understand how correct my expressions were and what the correct answers closest to my way of speaking and habits are. Plus, I can also learn other common expressions, so it's satisfying and easy to remember. It's a really great app!
Takomaru-san
Great app. I was looking for an instant English composition app and found this one. WPM measurement, instant feedback, and example answer audio are all easy to hear.
Katie katy kt
This is a very good app that I'm using. It's amazing that similar expressions are judged as correct or not, which is unprecedented, and it's not just a simple memorization tool. Also, thank you for quickly adding the model answer reading function in response to my request.
Morizomori-san
Among instant English composition apps, this is the most user-friendly and the example sentences really clicked with me. I signed up for the paid plan! I use it every day. When I sent feedback asking to make the example sentence audio audible, I got a response that day, and with the update, I could hear the audio. I was very surprised by the speed of that response... it's amazing.
Doranbushi-san
I happened to find it and tried it out, and it's really a wonderful app. I'd like to continue using it. ★Good points: ①It's organized by theme according to scenes (business English, small talk, presentations, restaurants, etc.). ②The content is widely developed. ③It's one sentence (one question, one answer) English composition, so you can think quickly without spending too much time. ④You can answer by voice or typing, so you can study even on the train. ⑤You get appropriate feedback on your answers about what's wrong (whether the meaning gets across).
chammmmb
This might be the absolute best among the English conversation apps I've used so far. This app is easy to understand how to use, and it's fun to study because it shows that there's more than one correct expression and clearly explains where you made mistakes instantly.
kono__ca
It's good that you don't need time to think about what to say, and your brain is trained to keep making English sentences one after another. I also like that you can proceed while checking pronunciation.
Tora Tora
The following 2 points are the reasons for my highest rating! ①It's a high-functionality and practical instant English composition & vocabulary app. Unlike the common 'rote memorization' approach in instant English composition, you get actual feedback on the English sentences you create/speak, which leads to discovering and improving weaknesses. Also, based on this learning history, the vocabulary app side automatically classifies words as 'known, used, pronounced correctly,' so as a vocabulary app, it's very practical that it doesn't become simple memorization study. ②The developers and operators provide sincere and kind support. When I sent a request for a feature I wanted added to the vocabulary function through the feedback box, I immediately received a polite response and quick action. I was moved by that speed and their user-focused attitude. I'm a graduate student who has continued to struggle with English study and has a strong aversion to it, and I'm anxious about participating in international conferences. I can confidently recommend this app not only to graduate students but also to junior high and high school students.
Seto Umi
I'm an intermediate English learner around TOEIC 880. I was hesitant because it's a paid app, but I've been using it every day for 2 weeks and it's really great and moving. It correctly recognizes pronunciation immediately, and of course word choice, but it also points out grammar at the article level. With humans, there's communication involved, so you can't get this even with a teacher.
Kurakiyoki
It's updated very frequently, and small details are constantly being improved. When I requested the addition of a memo field, the feature was added in less than a month. Thank you! I felt that difficulty-based filtering is very useful for beginners to avoid giving up. I also feel that the accuracy of explanations after answering has improved dramatically compared to half a year ago. I'm very satisfied with the current state, but I'm looking forward to future evolution.
Rararakuma
It's very good compared to many other English apps! Most apps have only one answer prepared and are content to memorize it, so it's the same passive learning style as school classes, making it hard to develop English skills and leading to quick giving up. However, this app lets you think of English sentences yourself, and the answers aren't limited to one - it's OK as long as the meaning gets across, so you can learn actively and feel the growth of your English skills. I want to continue using it in the future.
Mugiteka
The main feature is correcting mini English compositions, and I like that even if my answer's phrasing is different from the original correct sentence, it's marked as correct if it's semantically and grammatically correct. Also, when my answer's nuance is subtle, better phrasing is displayed on the correction screen, which speeds up the improvement cycle for me who can't quickly come up with sentences, so I can learn enjoyably. Furthermore, there are frequent good updates, even small ones, so I felt that user voices are valued.
Negimayo
I'm an expatriate who can't speak English. English is essential for my work but I can't speak it and I'm troubled. It's an app for creating English sentences, but by doing this every morning on my commute train, I've come to understand the speed of creating English sentences in my head, the words to use, how to arrange sentences, and how to express things. Thanks to this, my conversations have definitely become smoother than before. I've tried various apps, but this is the best so far.
ahodeomasu
The dissatisfaction I had with English conversation schools was that even if I somehow got by, they wouldn't point out grammar mistakes one by one, so I couldn't improve much. Also, the dissatisfaction I had with English conversation materials and apps was that there's only one answer, so everything else becomes incorrect, but this app flexibly responds and advises that it's sufficient to get the meaning across. This app resolves these dissatisfactions and can resolve the growth stagnation I was experiencing. People with similar concerns should definitely try it.
Kaway14
I can brush up on English expressions that suit me. I used to think English was fine as long as it got the message across, but now I understand how correct my expressions were and what the correct answers closest to my way of speaking and habits are. Plus, I can also learn other common expressions, so it's satisfying and easy to remember. It's a really great app!
Takomaru-san
Great app. I was looking for an instant English composition app and found this one. WPM measurement, instant feedback, and example answer audio are all easy to hear.
Katie katy kt
This is a very good app that I'm using. It's amazing that similar expressions are judged as correct or not, which is unprecedented, and it's not just a simple memorization tool. Also, thank you for quickly adding the model answer reading function in response to my request.
Morizomori-san
Among instant English composition apps, this is the most user-friendly and the example sentences really clicked with me. I signed up for the paid plan! I use it every day. When I sent feedback asking to make the example sentence audio audible, I got a response that day, and with the update, I could hear the audio. I was very surprised by the speed of that response... it's amazing.
Doranbushi-san
I happened to find it and tried it out, and it's really a wonderful app. I'd like to continue using it. ★Good points: ①It's organized by theme according to scenes (business English, small talk, presentations, restaurants, etc.). ②The content is widely developed. ③It's one sentence (one question, one answer) English composition, so you can think quickly without spending too much time. ④You can answer by voice or typing, so you can study even on the train. ⑤You get appropriate feedback on your answers about what's wrong (whether the meaning gets across).
chammmmb
This might be the absolute best among the English conversation apps I've used so far. This app is easy to understand how to use, and it's fun to study because it shows that there's more than one correct expression and clearly explains where you made mistakes instantly.
kono__ca
It's good that you don't need time to think about what to say, and your brain is trained to keep making English sentences one after another. I also like that you can proceed while checking pronunciation.
Tora Tora
I can brush up on English expressions that suit me. I used to think English was fine as long as it got the message across, but now I understand how correct my expressions were and what the correct answers closest to my way of speaking and habits are. Plus, I can also learn other common expressions, so it's satisfying and easy to remember. It's a really great app!
Takomaru-san
Great app. I was looking for an instant English composition app and found this one. WPM measurement, instant feedback, and example answer audio are all easy to hear.
Katie katy kt
This is a very good app that I'm using. It's amazing that similar expressions are judged as correct or not, which is unprecedented, and it's not just a simple memorization tool. Also, thank you for quickly adding the model answer reading function in response to my request.
Morizomori-san
Among instant English composition apps, this is the most user-friendly and the example sentences really clicked with me. I signed up for the paid plan! I use it every day. When I sent feedback asking to make the example sentence audio audible, I got a response that day, and with the update, I could hear the audio. I was very surprised by the speed of that response... it's amazing.
Doranbushi-san
I happened to find it and tried it out, and it's really a wonderful app. I'd like to continue using it. ★Good points: ①It's organized by theme according to scenes (business English, small talk, presentations, restaurants, etc.). ②The content is widely developed. ③It's one sentence (one question, one answer) English composition, so you can think quickly without spending too much time. ④You can answer by voice or typing, so you can study even on the train. ⑤You get appropriate feedback on your answers about what's wrong (whether the meaning gets across).
chammmmb
This might be the absolute best among the English conversation apps I've used so far. This app is easy to understand how to use, and it's fun to study because it shows that there's more than one correct expression and clearly explains where you made mistakes instantly.
kono__ca
It's good that you don't need time to think about what to say, and your brain is trained to keep making English sentences one after another. I also like that you can proceed while checking pronunciation.
Tora Tora
Achievements
InstaEnglish has built a track record in the United States and countries around the world.
Winner of Northwestern University Startup Competition
Selected for AI Innovation Lab 2024 Spring cohort at 1871, Chicago's largest accelerator program
Winner of Startup Pitch Competition held at Drive Capital, Chicago's VC
Selected for Northwestern University's Summer Accelerator Program
Featured speaker at Chicago AI Week, Chicago's largest AI conference
3rd place in startup competition at Northwestern University's PE/VC conference
Winner of Northwestern University Startup Competition
Selected for AI Innovation Lab 2024 Spring cohort at 1871, Chicago's largest accelerator program
Winner of Startup Pitch Competition held at Drive Capital, Chicago's VC
Winner of Northwestern University Startup Competition
Selected for AI Innovation Lab 2024 Spring cohort at 1871, Chicago's largest accelerator program
Winner of Startup Pitch Competition held at Drive Capital, Chicago's VC
Selected for Northwestern University's Summer Accelerator Program
Featured speaker at Chicago AI Week, Chicago's largest AI conference
3rd place in startup competition at Northwestern University's PE/VC conference
Selected for Northwestern University's Summer Accelerator Program
Featured speaker at Chicago AI Week, Chicago's largest AI conference
3rd place in startup competition at Northwestern University's PE/VC conference
Team
The passionate minds behind InstaEnglish speak 8 languages natively.

Yutaro Nishiyama
Co-Founder, Head of Engineering
Education
Northwestern University MBA + M.S. in Design Innovation University of Illinois Urbana-Champaign M.S. in Computer Science

Théry Badin
Co-founder, Head of Finance
Education
Northwestern University MBA + M.S. in Design Innovation Dartmouth College B.A.

Evan Lai
Head of Design
Education
Northwestern University MBA + M.S. in Design Innovation

Yutaka Kawabata
Head of Materials
Education
Northwestern University MBA + M.S. in Design Innovation

Hiko Hirano
Head of Business Development
Education
University of Chicago MBA

Rawnak Wasi
GTM strategist
Education
Northwestern University MBA + M.S.

Hailee Kim
Head of Korean Team
Education
Northwestern University B.A.
Our Story
Our founder Yutaro was born and raised in Japan, but had strong confidence in his English skills, achieving 16th place nationally in English in high school exams. However, during his study abroad in the US, he experienced overwhelming inadequacy in speaking skills and faced major setbacks.
Afterwards, he took seriously the common advice that 'the best way to improve speaking skills is to practice English conversation endlessly!' and invested over 1,000 hours in English conversation services. Unfortunately, he couldn't feel visible growth and began to strongly doubt the 'grit theory' of endlessly practicing English conversation.
Therefore, he sought out linguists specializing in second language acquisition and explored scientifically optimal English learning methods. With the cooperation of team members including native English speakers and multilingual speakers, he established InstaEnglish's learning methodology.