Conversation
New words appear as they are said, nothing else on the lens. A swipe shows the sentence translation instead (Premium).
For Even Realities G2 · on Even Hub
Only the words you don't know, on the lens.
Kotolens listens through your glasses and shows the two or three words you missed, with their reading and meaning. The rest stays clear glass, and the person in front of you stays in view.
Free, offline, for Japanese, English, Korean and Chinese. Premium {monthly} a month adds five more languages, translation and review on the glasses.
Real lens capture. A conversation, a video and a lecture: only the words you missed appear.
Runs on your phone
Speech model and dictionary are downloaded once. Then it works with no internet.
Speech never leaves it
No account, no password. Your word list stays on the phone unless you connect a card service.
Knows what you already know
Import known words from LingQ, WaniKani, jpdb, Renshuu, Skritter or Anki. They stay off the lens.
01 · Why not translate everything?
Subtitles make you read. Kotolens makes you listen.
A full translation on the lens is a crutch: you stop hearing the language and start reading English. Kotolens shows only what you would have missed, so the sentence stays yours.
We'll have the meeting tomorrow afternoon, if that is no trouble for you. Can you send me the slides before lunch so I
…and the next sentence pushes it off the lens
打ち合わせ（うちあわせ）
meeting, arrangement
差し支え（さしつかえ）
hindrance; if it is no trouble
the rest of the lens stays clear
02 · Five contexts
One app, five ways you actually learn.
Each context has its own layout and its own gestures. Pick one on the phone, then put the phone away.
Video · anime · podcast
A fuller transcript, with the time or the reading in a side column. Pause-free: the words wait for you.
この理論は二十世紀の初めに提唱されました。重要なのは仮説の検証です。
提唱 · 仮説 · 検証 kept for later
Lecture or class
The transcript stays on the lens and new words are gathered quietly for the evening.
Practice Premium
Your words as cards on the glasses. Tap to flip, swipe up if you know it, down to see it again.
Reminders Premium
Every few minutes through the day, a word to review or a new one from the dictionary, with the sentence it was heard in.
Then, in the evening, every word that slipped by is waiting on the phone.
See the phone side →
03 · Languages
Four languages offline. Five more with Premium.
Recognition, dictionary and word extraction run on the phone for the first four. The interface speaks ten languages.
On the phone, offline, free
No internet needed
日本語Japanese
English
한국어Korean
中文Chinese
Dictionaries: JMdict, CC-CEDICT, Wiktionary. Definitions in English, and in the app's other languages with Premium.
Online recognition, with Premium
30 h / month
Français
Español
Deutsch
Italiano
Português
Audio is sent to the recognition service only when you choose one of these languages. You are told before it happens.
04 · Pricing
Free to learn. {monthly} if you want more.
Kotolens works without a subscription. Premium is there for the day you want translation, review on the glasses, or another language.
Free
Forever. No account.
- Japanese, English, Korean, Chinese, offline
- Conversation, Video and Lecture contexts
- Definitions in English
- Import known words from LingQ, WaniKani, jpdb, Renshuu, Skritter, Anki
- Review on the phone, every evening
Premium
a month, or {yearly} a year
7-day free trial. Cancel any time on kotolens.com.
- Everything in Free
- French, Spanish, German, Italian, Portuguese, online, up to 30 hours a month
- Sentence translation on a swipe
- Practice and Reminders on the glasses
- Definitions in ten languages
- Anki export, and sending kept words to LingQ, jpdb, Renshuu or Skritter
05 · Install
Two minutes, no computer.
Kotolens lives inside the Even Realities app, in Even Hub. This site only explains it, and handles Premium.
Step 1
Open the Even Realities app
The one paired with your G2. Tap the Even Hub tab at the bottom.
Step 2
Search “Kotolens”
Or open this link on your phone.
Install, then let it download the speech model and dictionary once (about 150 MB on Wi-Fi).
Step 3
Pick a language and a context
Put the phone in your pocket. The lens does the rest. Gestures for each context are listed in Settings.
Tested on iPhone. Android should work and reports are welcome at contact@kotolens.com
06 · Who makes this
Made by one person who is learning Japanese.
I built Kotolens because I wanted my glasses to help me listen, not read for me. Every email gets read, and most feature requests end up in the app within a few weeks.
差し支え
tap flip · up known · down review7/12