Sayabashiri - Samurai Katana
Iai sword draw & slash game
Only for iPhone
Free · In‑App Purchases · Designed for iPhone. Not verified for macOS.
iPhone
Your iPhone becomes a katana hilt. Wait for the 5-count and draw. Your slash is scored out of 100 for edge, speed, stop and arc. Pass and the target is cut in two.
Grip your iPhone like the hilt of a katana and draw it from your hip in one motion.
Sayabashiri ("the blade leaving the scabbard") is an iai sword-drawing game that measures your slash with the iPhone's motion sensors and scores it.
HOW TO PLAY
1. Tap "Start"
2. During the 5-4-3-2 countdown, hold the phone like a sword hilt at your left hip
3. Hold still on 1
4. When the phone vibrates and "Draw!" appears, draw, slash and stop
Draw before the signal and it is a false start. Patience is part of iai.
SCORED OUT OF 100
- Edge alignment (40): does the blade's axis stay true while you swing?
- Speed (30): how sharp is the draw? (capped, so swinging harder does not help)
- Stop (20): does the blade stop cleanly at the end?
- Arc (10): is the rotation the size of a real drawing cut?
Reach the pass mark and the target is cut along the angle of your slash. Fall short and the blade stops halfway.
THREE TARGETS
- Straw mat / makiwara (pass: 60)
- Bamboo (pass: 75)
- Armor and helmet (pass: 90)
Straw mat and bamboo can be challenged any number of times. For the armor, watch an ad to get 3 attempts, or unlock it with an in-app purchase that also removes all ads.
PLAY SAFELY
- Grip the phone firmly and use a wrist strap if you have one
- Make sure no people, objects or walls are nearby before you swing
- You do not need to swing with full force. Edge alignment and the stop are the keys to a high score
OTHER
- No account required
- Motion data is processed on your device and never sent anywhere
- Purchases can be restored on another device with "Restore purchase"
Contact: chimasaki31@gmail.com
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The developer, MASAKI CHIBA, 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
- Location
- Identifiers
- Usage Data
- Diagnostics
Accessibility
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Information
- Seller
- MASAKI CHIBA
- Size
- 39.5 MB
- Category
- Action
- Compatibility
Requires iOS 15.0 or later.
- iPhone
Requires iOS 15.0 or later. - iPod touch
Requires iOS 15.0 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
9+
- 9+
- Infrequent
Guns or Other Weapons
Contains
Advertising
- In-App Purchases
Yes
- 鎧・兜の解放と広告除去 $1.99
- Copyright
- © 2026 MASAKI CHIBA