Here are the smartphone apps developed by CLT NY INC. Kou Works, Plate Clash, Gravity Four, EA Drill, Gaimen Kirikae, Permit Navi, CLT Members, Chart Dojo 100, Jinsei Roulette and Ouchi Quest are available on the App Store, and Kou Works, Plate Clash, FaceRank, Gravity Four, Gaimen Kirikae, EA Drill, Permit Navi, CLT Members, Chart Dojo 100, Jinsei Roulette, Omatsuri Nihongo and Ouchi Quest are available on Google Play. The remaining apps are being prepared for release, and download links will be posted on this page as soon as each one goes live.
Our Apps
CLT Members
An app for the members and staff of the companies, clubs and shops that use the membership service from CLT NY INC. A digital membership card, notices, event sign-ups, restaurant reservations and orders, salon bookings and staff attendance all live in one app. Member records are held by the organization you belong to, and payments for orders and bookings are handled by that organization’s own payment provider.
Support, Terms of Service & Privacy Policy
Available now on both iOS and Android.
Kou Works
Crowdfunding where a person in need writes, in their own words, what they need and how much, and anyone who reads it can send money directly. Every recipient completes identity verification with Stripe. The operator takes 1% of each contribution; the rest, less Stripe’s payment processing fee, goes straight to the recipient’s own account without passing through the operator’s balance. Operated by CLT LLC (CLT合同会社).
kouworks.org | Terms · Privacy Policy
Available now on both iOS and Android.
Plate Clash (Gourmet Battle)
A food photo voting app. Post photos of regional specialty dishes from around Japan and let users vote to decide the most popular plate. Share your favorite dish and battle it against everyone else’s.
Support, Terms of Service & Privacy Policy
Available now on both iOS and Android.
FaceRank – Which Do You Like?
A simple head-to-head voting app: you pick which of two photos you prefer, and the results feed an Elo rating that drives the rankings. Register a photo of your own face, or of your own cat or dog, to join the rankings. Reporting, opting out of the rankings and account deletion are all built in. Voting is free up to 30 votes a day, with an optional monthly premium for unlimited voting and additional vote packs.
Terms of Service & Privacy Policy
Available for Android.
Gravity Four
Four-in-a-row with gravity. Pick a column and your piece falls to the lowest empty square; line up four vertically, horizontally or diagonally to win. Four board sizes, from a 6×7 classic to a 10×12 extra – the wider the board, the deeper you have to read. Play solo against three CPU levels (the hardest reads ten moves ahead), pass one device back and forth for two players, share a six-character code to play privately with a friend, or match automatically with someone anywhere in the world. No account required.
Terms of Service & Privacy Policy
Available now on both iOS and Android.
Gaimen Kirikae – Japan Foreign License Conversion Test Prep
A study app for the knowledge (written) test required when converting a foreign driver’s license to a Japanese one (gaimen kirikae). It follows the format introduced in October 2025: 50 questions with a 90% pass mark. Includes 12 topic summaries, 12 patterns of the trick phrasing this test is known for, an illustrated guide to 22 road signs, 40 flashcards for distances and speed limits, and a full 50-question mock exam.
Terms of Service & Privacy Policy
Available now on both iOS and Android. On Google Play it is listed as “Japan License Conversion Prep.”
EA Drill – Enrolled Agent (EA) Exam Prep
A drill app for the U.S. Enrolled Agent exam – the IRS Special Enrollment Examination (SEE). Questions are in English in the same four-choice format as the real exam, with detailed Japanese explanations and citations to the IRC, Publications and Forms. It covers all three parts (Individuals; Businesses; Representation, Practices and Procedures) and follows the tax law in effect as of December 31, 2025, including the OBBBA changes, for the July 1, 2026 to February 28, 2027 testing window. Also includes an eligibility check, review of missed questions only, and weak-area analysis by part and topic.
Terms of Service & Privacy Policy
Available now on both iOS and Android. It is listed as “EA Drill” on the App Store and “EA Drill 米国税理士試験ドリル” on Google Play.
Permit Navi – Learner Permit Test Prep for All 50 States
An app that combines preparation for the US learner permit written test with tracking your progress toward a license. It covers all 50 states plus DC: pick your state and practice in that state’s own test format, following the question count, pass mark and sign-question rules its licensing agency publishes. On first launch you choose your language, then your state — English, Japanese, Spanish, Simplified Chinese, Korean and Vietnamese are available. Every question, answer choice and explanation is written in English and in the language you choose, and you can switch between English only, your language only, or both side by side. It includes 700+ questions, study by topic, spaced-repetition review of missed questions, a requirements page for your state with official links, a roadmap from permit to course to road test, and a 6-point ID calculator. Content is summarized from each state’s official driver manual and licensing agency website; this is an independent study tool and is not affiliated with any state DMV.
Terms of Service & Privacy Policy
Available now on both iOS and Android, covering all 50 states plus Washington, D.C.
Omatsuri Nihongo (Japanese Abroad)
A Japanese-learning app for children growing up outside Japan. Built around a Japanese festival theme, it introduces vocabulary and cultural background in a way young learners enjoy. No account is required, study records stay on the device, and there is no advertising and no in-app purchase.
Terms of Service & Privacy Policy
Available now on Android, listed on Google Play as “おまつり日本語 – こども日本語”. The iOS version is being prepared.
Chart Dojo 100 – Trading Practice with Real Charts
A game for practicing trading decisions and money management on real historical charts. Using actual 2012–2025 price data for currencies, stock indices, gold and crypto, you choose to buy, sell or wait, set a stop-loss and take-profit, and then watch the real price action play out. Start with ¥1,000,000 and aim to clear all 100 levels, with a global leaderboard to climb. No real money is ever used and no account is required. There is no advertising and no in-app purchase. It is an educational simulation, not investment advice. The app is available in Japanese, English and Simplified Chinese; it follows your device language and can be switched in Settings.
Support / Privacy Policy (in Japanese)
Available now on both iOS and Android.
Jinsei Roulette (Life Roulette)
A board game where you spin a roulette wheel to move through life, from birth at age 0 to your final send-off at 90. Along the way you choose lessons, schooling, a career, marriage, a home and stock trades, and at the end players are ranked on both wealth and happiness. Pass one device around to play together, play against computer opponents, or play online with friends far away. All in-game money is fictional and no account is required. There is no advertising and no in-app purchase. The app is in Japanese.
Support / Privacy Policy (in Japanese)
Available now on both iOS and Android.
Ouchi Quest: Family Chores
A family app where kids tap “Done!” when they finish a chore, a grown-up taps “OK!”, and points add up. Kids trade their points for rewards your family chooses, such as a treat, screen time, an outing or pocket money. Get started by picking from a chore library of about 120 chores sorted by age, from 3 to grade school, and connect parents’ phones and kids’ tablets as one family with a 6-character invite code. (“Ouchi” means “home” in Japanese.) The app is in English and Japanese, and no account is required. There is no advertising and no in-app purchase.
Support / Privacy Policy / Chores by age & printable chart
Available now on both iOS and Android.
Contact
For questions about any of our apps, please email yukimoto@cltny.com and include the app name in the subject line.