Train Drill
Couple Trains, Learn Math
Free · In‑App Purchases · Designed for iPad. Not verified for macOS.
All-new landscape design! Now with Subtraction mode and English support.
Learn addition and subtraction through train coupling and uncoupling.
Two trains couple with a satisfying "clunk!" — how many cars in all?
Cars uncouple from the consist — how many are left?
The coupling and uncoupling animations turn numbers into something you can see and count, so arithmetic sinks in through play.
■ Features
- Adventure map with 9 routes: forest, mountains, sea, and the stars
- Clear every addition route to unlock Subtraction mode
- Train collection: stainless, two-tone liveries, and special cars
- Special showcase: Shinkansen, steam locomotive, and a luxury cruise train
- Rank up as you answer: Trainee -> Local -> Express -> Limited Express -> Shinkansen Driver
- Parents' dashboard: weekly play counts and tricky problems
- Built-in daily limits (Free: 3 stages/day)
- No ads, all data stays on the device
■ Plans
- Free: 3 stages/day
- Mini: 10 stages/day + Subtraction mode
- Unlimited: unlimited + Subtraction mode
■ Terms & Privacy
- Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
- Privacy Policy: https://kuromojilabs.github.io/traindrill-site/privacy.html
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
A big v2.0 update!
- All-new landscape-first design
- New Subtraction mode
- Japanese / English support
- Renamed to Train Drill
The developer, Kuromoji LLC, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- Purchases
- Identifiers
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Kuromoji LLC
- Size
- 35.7 MB
- Category
- Education
- Compatibility
Requires iOS 15.1 or later.
- iPhone
Requires iOS 15.1 or later. - iPad
Requires iPadOS 15.1 or later. - iPod touch
Requires iOS 15.1 or later. - Mac
Requires macOS 12.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
- English and Japanese
- Age Rating
4+
- 4+
- In-App Purchases
Yes
- Mini $0.99
- Unlimited $1.99
- Copyright
- © 2026 Kuromoji LLC