
Legal
Subscription and Refund Policy
Page Summary
- Audience
- fees, billing, renewal, cancellation, and refund conditions for paid plans.
- Important Point
- plans auto-renew, and no prorated refund is given when you cancel mid-period.
- Required Action
- complete cancellation before the next renewal date if you do not wish to continue.
Contents (12)
1Scope
This Policy applies to the contracting guardian who subscribes to a paid plan. The contracting guardian is one adult who is the parent with parental authority, the guardian of a minor, or otherwise the statutory legal representative of the registered child under Japanese law.
This English text is provided for reference only. The Japanese version is the authoritative text and prevails in the event of any discrepancy.
The service is offered only to residents of Japan.
This Policy forms part of the Terms of Use. Where this Policy and the Terms differ, this Policy prevails. Matters not provided for here are governed by the Terms.
2Plans and Fees
Fees for Japan are JPY 1,200 per month or JPY 8,000 per year, both tax included. The displayed amount is the total amount payable; no separate handling fee is charged.
There is no free trial or free learning plan available for general subscription (excluding a complimentary right to use the service granted by the operator to individually designated recipients; see the Terms of Use).
Communication charges necessary for internet access are borne by the contracting guardian.
3Matters to Review Before Subscribing
Before confirming a subscription, please review the following, as displayed on the subscription screen.
- The tax-inclusive fee for each plan
- That the contract auto-renews with no fixed end date, and the length of one contract period (one month for the monthly plan, one year for the annual plan)
- The billing cycle, when the next billing date is determined and how to check it, and when provision begins
- The payment method
- How to cancel, the deadline for cancellation, and the effects of cancellation
- The principal refund conditions
4Formation of the Contract and Start of Provision
The contract is formed at the point the payment for the subscription succeeds.
The operator records the content of the concluded contract. That record serves to evidence formation; neither its existence nor its timing affects formation of the contract.
The service is available immediately after the contract is formed.
5Billing and Auto-Renewal
The first charge is made at the time of subscription, and thereafter the registered payment method is charged on each renewal date. Plans auto-renew every one month or one year respectively unless the cancellation procedure is completed.
At each renewal, the fee applicable at subscription or as lawfully changed for that renewal is charged. The next scheduled billing date and the contract status can be checked on the guardian’s management screen or in Stripe’s Customer Portal.
Fees are paid through the payment functions provided by Stripe, using the method shown on the subscription screen. The operator does not itself store the full card number.
6Plan Changes
A change from the monthly plan to the annual plan is made through Stripe’s Customer Portal from the guardian’s management screen. Changes from the annual plan to the monthly plan are not currently accepted.
On such a change, Stripe’s calculation may produce a credit for the unused period, a charge for the difference, or a change to the billing date. Please review the resulting plan, effective date, amount charged, credit, and next billing date displayed before confirming.
The operator does not add and charge any proration of its own that was not displayed before the change was confirmed.
7Failed Payments
Where a payment fails, we do not suspend access immediately, and may allow a grace period corresponding to the payment provider’s retries and other collection procedures. During the grace period, you may update the payment method and pay the outstanding amount.
The length of the grace period, the timing of retries, and notices may differ depending on the billing cycle, the payment status, and Stripe’s settings. If payment is not completed by the end of the grace period, we may stop further access to learning.
Once payment is confirmed, access is restored within a reasonable period. The specific scope of use available during a failed payment and the scheduled suspension date are communicated on the guardian’s screen or by email.
8Cancellation
You may stop the next renewal at any time through Stripe’s Customer Portal. Cancellation is accepted at the point the procedure is completed there, and takes effect on the last day of the current paid contract period. You may continue to use the service until that day.
Where the Customer Portal cannot be used (you cannot log in, there is a failure on the payment provider’s side, or the cancellation procedure is not displayed), you may request cancellation by contacting the support desk before the next renewal date. The operator will confirm your identity and carry out the cancellation within a reasonable period.
Where such a request arrives before the next renewal date but the operator’s handling extends past that date, the operator refunds the fee for that renewal.
Deleting the app, logging out, clearing browser data, or simply not using the service does not cancel the subscription. Cancelling a subscription and deleting an account are different procedures; cancellation alone does not delete the account or the learning history.
9Refunds
For a cancellation partway through a contract period for your own convenience, except where otherwise provided by law, we do not refund the fee for the remaining period. You may use the service until the last day of the contract period. The same applies where account deletion is requested during a contract period.
Where duplicate billing is confirmed, where the service could not be used due to a clear system failure or a deficiency on the operator’s part, where the contracted service was not provided due to causes attributable to the operator, where the operator terminates the service partway through a paid period for its own reasons, or where the operator otherwise considers a refund appropriate in light of the individual circumstances, the operator verifies the facts and provides a full or partial refund or other appropriate response.
Where, after a request for account deletion, a payment is completed through payment processing that was already in progress before the request, the operator cancels that subscription and we refund that payment in full. The operator carries out this refund on its own initiative, without waiting for a request.
The above does not limit any right of rescission, termination, damages, or other right you have under law.
To request a refund, contact the support desk from your registered email address with the billing concerned, the reason, and the information needed for verification.
10Treatment on Termination of the Service
Where the operator terminates the service partway through a paid contract period for its own reasons and does not provide the service for the remaining period, it calculates the fee for that unprovided period on a prorated basis by a reasonable method and refunds it, unless it provides an alternative service or other measure that does not disadvantage you.
11Changes to Fees
Where you continue on the same plan, the operator will in principle maintain the fee applicable at the start of the contract, except where there is a change in tax rates, a change in law, a change in the payment provider’s specifications, or another unavoidable circumstance.
Where fees change under that exception, the operator gives advance notice of the scope and timing of application, allowing a reasonable notice period.
Where you change plans, the fee for the destination plan displayed during the change procedure applies.
12Statutory Exceptions
Notwithstanding this Policy, where a refund or termination of the contract is permitted under the Consumer Contract Act or other law, that law applies in priority.
Provision of the service is the provision of services constituting mail-order sales, and the cooling-off system under the Act on Specified Commercial Transactions does not apply.
Related Legal Pages

Billing Questions
For questions about billing, cancellation, or refunds, please contact the legal channel.
- Operator
- Kentaro Ishida (石田憲太朗)
- Legal contact email
- support@sumlia.com