Sseulon

Terms of use

Effective date: September 12, 2026

1. Operator and scope

These terms apply to Sseulon, operated by IBRDOS Inc. ((주)아이비알도스, the “Company”). Contact dev@ibrdos.com for support. Personal information is handled under the Privacy Policy.

2. Service

Sseulon is a personal record tool for entering a budget period, expenses and planned expenses and calculating a daily spending amount. Each period uses one currency: Korean won (KRW), US dollars (USD), Japanese yen (JPY) or euros (EUR). It does not provide automatic currency conversion, bank or card integration, money transfers, actual payments, lending, investment or insurance services.

Results are allocations calculated from the amounts and dates you enter. They are not actual bank balances, payment authorizations, financial advice or guarantees of savings or ability to pay. Missing or incorrect transactions are not detected automatically. You can check your records and spending decisions against your actual financial situation.

There is no registration, paid subscription or in-app purchase. Device, carrier and external service charges are subject to the respective providers’ terms.

3. Periods and calculations

A period includes its start date and excludes the end date set as the next payday. Daily amounts are divided over the remaining dates, including today. Unpaid planned expenses are reserved from the available budget. When you record one as paid, the actual expense amount is used. The same planned expense cannot be recorded as paid twice.

Actual expenses linked to planned expenses are counted separately from ordinary spending, so they are not deducted twice from today’s allowance. KRW and JPY amounts use whole units; USD and EUR allow two decimal places. Daily divisions round down to the currency’s smallest unit, and negative balances remain visible. Dates follow the device’s local calendar. Changing the device date or time zone can change the displayed current date and remaining period. Existing record dates are not changed automatically, and all actual expenses count toward the remaining balance.

Limits apply to periods, expenses, planned expenses, amounts, text and file size for on-device processing. See Support for details.

4. Records and backups

Records are stored on your device. The Company provides no server synchronization or account-based recovery copy. A JSON backup contains all periods, expenses, planned expenses, notes and settings as plain text. After confirmation, restore replaces all current app data with the backup instead of merging records.

You choose where to share or store files. Copies held by other apps or services are subject to their providers’ terms. Deleting records in Sseulon does not delete previously exported copies. Temporary files are not permanent storage.

5. Appropriate use and rights

Use information that you have the right to enter and share. Ownership of your records is not transferred to the Company. Do not use the app to infringe others’ rights, compromise service security or manipulate advertising clicks or impressions. This does not restrict activities protected by law.

The Company grants a non-exclusive right to use the app in its ordinary course. Ownership and trademark rights in the app or brand are not transferred. Open-source components are subject to their own licenses. Rights under mandatory law and required app-market terms remain intact.

6. Advertising and external services

Sseulon includes Google AdMob banner ads. Viewing or tapping ads is not required to use the core features. Advertised products and services are supplied by their advertisers and their terms apply to transactions. Displaying an ad does not mean the Company sells or recommends it.

7. Changes, responsibility and disputes

The Company may update the app or change its scope for improvements, security, operating-system changes or reasonable operational grounds. Material service or terms changes and their effective dates are announced in the app or on its information pages. Separate consent is obtained where required by law.

The Company remains responsible under applicable law. These terms do not exclude liability for intentional misconduct or gross negligence or restrict rights that cannot lawfully be excluded. Contact dev@ibrdos.com about disputes. Applicable law and jurisdiction follow mandatory law and the competent court’s rules.