Recharge plan

You can keep using the SIM by recharging before the expireation date!
You can choice four types of recharging plans !

Data allowance Valid Term Price
(Excluding TAX)
¥ 1,000
¥ 1,800
¥ 2,500
¥ 3,000

Log in to COMST app or "" and recharge within a term of validity. The payment can be done by credit card and at convenience store.
Caution: The SIM will be automatically canceled without recharge before the term of validity which is shown on "". The SIM card can not be reused in any case. 


❶ Recharge plan selection

Select the recharge plan from the COMST app or "".

❷ Payment

The payment amount is displayed. If there is a balance in Wallet, it will be automatically deducted.

❸ Payment method

Payment by credit card
Choose credit card.
Register your credit card.
Enter credit card information.
Payment at convenience store
Choose payment at convenience store.
Select a convenience store you'd like to pay.
Please pay at the store.

❹ Recharge completed

You can use immediately after the procedure.

Contact us

COMST Support Center

Business hours: 10:00-18:00 JST weekdays