Suica残高確認・ICカードリーダー ちょいみ

Just hold it over, and you'll know instantly.

"Choimi" is a simple app that lets you check the balance and usage history of transportation IC cards such as Suica, ICOCA, and PASMO simply by holding it over your smartphone.

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🔍 Main Features
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◆ Check your balance instantly
Simply hold your card over the back of your smartphone. Your balance will be displayed in an instant.

◆ View your usage history
View a list of your boarding, charging, and purchase records. The names of your boarding and alighting stations are automatically displayed.

◆ Export as CSV
Save and share your history data as a CSV file. It can also be used for household budgeting and expense reporting.

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✨ Key Features
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• No Ads — Prioritizing a comfortable user experience
• Simple Operation — Just launch and hold your device over the reader
• Reading Feedback — Success/failure is indicated by vibration and sound
• Offline Operation — No internet connection required
• Privacy-Focused — Data is managed only on the device and is never transmitted externally.

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⚠️ Important Notes (Please Read Carefully)
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• Regarding the Number of History Items Displayed
Due to the specifications of IC cards (FeliCa), only the most recent 20 history items stored on the card can be read.

• Regarding Compatible Devices
An Android device with NFC (FeliCa) reading functionality is required.

• Regarding Mobile IC Cards
This app primarily reads physical cards (plastic cards).

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📱 Compatible Cards
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Suica / PASMO / ICOCA / Kitaca / TOICA / manaca / SUGOCA / nimoca / Hayakaken
*Compatible with nationwide interoperability service transportation IC cards.

Transportation IC Card
Balance Check
Balance Inquiry
Electronic Money
IC Card Reader
NFC
Mobile Suica
Commuter Pass History
Usage History