This is an English translation for reference. The Japanese version is the official text. If the two differ, the Japanese version prevails. Japanese version: 料金

Pricing

Version: 5th edition (first established: October 11, 2026)

Revised: November 4, 2026

Effective: November 4, 2026

KUBOMI (the “Service”) lets people who are not signed in listen to the whole finished song as a trial, once (1 song) per person (you cannot download). On the Free plan, you can also use mixing, mastering, and rebuilding, and listen to the finished song all the way to the end. On the Free plan, you can make up to 3 songs per month and download them as MP3 (320 kbps). WAV downloads are available on paid plans. On the waveform page, you can fix the volume and left-right position (PAN); if the ranges you fixed in one version come to 30 seconds in total or less, you can save the fixes, apply them to the song, and download that version on every plan. A version is a finished song made when you first make the song and each time you rebuild it (v1, v2, ...). To fix more than 30 seconds, you need KUBOMI PRO. To make more songs, please use a paid plan (KUBOMI PRO Lite or KUBOMI PRO). (Below, KUBOMI PRO Lite is called “Lite” and KUBOMI PRO is called “PRO”.) The fees shown are in US dollars (USD). Depending on the country or region where you live, consumption tax and other taxes may be shown at checkout in addition to the fee. For customers who live in Japan, we currently do not add Japanese consumption tax at checkout (you pay the amount shown; if the operator becomes a taxable business for consumption tax, we may change this after notice on this page). The amount you pay may be charged after conversion to Japanese yen.

Compare plans

• We do not sell songs one at a time.
• Download formats: WAV (48 kHz / 24-bit), WAV (48 kHz / 16-bit), WAV (44.1 kHz / 16-bit), MP3 (320 kbps)
• For 1 song, you can upload up to 24 files, up to 200 MB per file, and up to 1,500 MB in total. When the Service is busy, processing may wait in a queue.

Before you subscribe

Payment

• When you subscribe, you pay the fee for the first billing period (1 month for monthly, 1 year for yearly) on the Stripe payment screen. The methods you can use are credit card, debit card, Apple Pay, Google Pay, and Link. The KUBOMI operator (the “operator”) does not receive card numbers.
• Billing, payment processing, and receipt of fees are done by Link (Sold through Link, LLC), an affiliate of Stripe, Inc., as the Merchant of Record. The operator provides the Service. Your card statement may show a name starting with “LINK.COM*”.
• You can use the plan immediately once payment is complete. A receipt is sent by email by Link (Sold through Link, LLC), the Merchant of Record.
• Payments are in US dollars. In places including Japan, an amount in Japanese yen or another local currency may be shown, and that amount may change at each renewal due to changes in exchange rates.

Automatic renewal

• Unless you cancel your plan, monthly plans renew automatically every month and yearly plans every year, and you pay the fee at each renewal. The next renewal time is shown on your account page.
• If your next renewal payment will be yearly, the operator will inform you by email within 24 hours from the point 14 days before the renewal time. Link may also send you notices about renewal.
• If the operator makes a price increase, the new price applies only from the payment at the renewal time, and the operator will inform you by email and on this page at least 30 days before (for monthly) or 60 days before (for yearly) the renewal time at which the new price applies. The fee for a period you have already paid for does not change, and if you cancel your plan before the new price applies, you can use the plan at the price before the change until the end of the period. An increase is within 50% of the price before the change and no more than once in 12 months, and a price change beyond this applies only if you agree to it.
• If a renewal payment fails, Link tries the charge again for a certain period. During this time, you can keep using the paid plan. If payment still cannot be confirmed, you are switched to the Free plan.

Trial without signing in

• If you are not signed in, you can add audio files from “Try it free” and make a song once (1 song) per person. You do not need to enter an email address. The limit on the number of trials is applied by the trial cookie (a cookie valid for 24 hours) saved in that browser, while it is valid.
• Trial songs are deleted automatically 24 hours after they are made. You cannot download them. You can rebuild a trial song up to 10 times.
• As the statement shown above the “Create” button on the screen where you add audio files says, by pressing the button, you agree to the Terms of Service and the Privacy Policy.
• When you sign in, trial songs are moved to your account as they are (only if you sign in within 24 hours of making the song, in the same browser you used to make the trial song, and that browser’s trial cookie is valid). Songs made in the trial are not included in your account’s song count, even after you sign in. After a song is moved, it is handled under the Free plan (or the paid plan, if you are on a paid plan), and on the Free plan, you can download it as MP3 (320 kbps). WAV can be downloaded on paid plans.
• Intentionally using the trial again and again by deleting the trial cookie, using it again after the cookie expires, using another browser or device, or other means, and any other act of avoiding the limits of the trial, are prohibited. If you break this rule, the operator may limit features or take other measures (Terms of Service, Articles 19 and 22). To avoid overloading the server, you may not be able to start a trial because of the overall cap on trials.

Number of songs

• The number of songs is counted by the number of songs made by uploading new audio files. Rebuilds are not counted. Deleting a song does not reduce the number. If processing fails with an error and the song is not completed, it is not counted. Songs made in the trial without signing in and moved to your account when you sign in are not included in the number.
• Free plan: up to 3 songs per month per person (counted by the songs made while on the Free plan. Songs are counted again on the 1st of each month (JST), and unused songs cannot be carried over to the next month. If you register again with the same email address or similar within 2 years from the date you deleted your account, the numbers for that month are combined). While on the Free plan, you can rebuild a song up to 10 times. Each person may have only one Free plan account. If one person registers several Free plan accounts, the operator may suspend the accounts or take other measures. If you cannot make a song and do not know why, please contact the operator.
• KUBOMI PRO Lite: up to 10 songs per month. KUBOMI PRO: up to 35 songs per month. Songs are counted again on the 1st of each month (JST), and unused songs cannot be carried over to the next month. The same applies to yearly plans. If you subscribe partway through a month, the cap for that month is not reduced.
• Once you reach the cap for the month, you cannot make new songs until the 1st of the next month. You can still rebuild and download the songs you have already made. If you are on the Free plan, the operator will suggest changing to a paid plan; if you are on KUBOMI PRO Lite, the operator will suggest changing to KUBOMI PRO.
• Continuously uploading audio files automatically by programs or similar is prohibited. If you break this rule, the operator may limit features or take other measures.

Downloads on the Free plan

• Press the download button on the song page to download that song as MP3 (320 kbps). The number of downloads is not capped, and you can download all versions while the song is shown on screen (for 7 days after making) (except versions in which more than 30 seconds were fixed on the waveform; see below). WAV is available on paid plans.
• A song that had been made downloadable up to WAV through the share link before the change can still be downloaded in all formats, as before, while it is shown on screen. For new songs, the same action will not make WAV downloadable.
• When you press the share button (optional) on the song page, the X (formerly Twitter) post screen opens with only the Service’s URL (https://kubomi.app) entered. Pressing it does not change the formats you can download. Nothing is posted automatically, and the operator does not check whether or what you post.
• A version in which the ranges fixed for volume and left-right position on the waveform page come to more than 30 seconds in total cannot be downloaded, including as MP3, on the Free plan or on a Lite plan that cannot use the part over 30 seconds. You can listen to it on screen. Fixes of 30 seconds or less can be saved and applied to the song, and you can download that version as MP3. Songs made during a paid plan period that ended because of the 7-day refund or similar cannot be downloaded on the Free plan.
• Saving the audio played on screen by using browser features, outside tools, or similar, and using it instead of downloading is prohibited. If you break this rule, the operator may limit features, suspend your account, or take other measures (Terms of Service, Articles 19 and 22).

Changing plans

• A change to PRO or from monthly to yearly that includes neither a change from PRO to Lite nor a change from yearly to monthly (an immediate change) applies from the time the change process is complete. If you change to PRO without changing the billing unit, you pay the difference in fees for the remaining period at that time. If you change from monthly to yearly, you pay the yearly fee minus the remaining part of your current billing period at that time, and a new 1-year billing period starts from the time of the change.
• A change that includes a change from PRO to Lite or a change from yearly to monthly (a booked change) applies from the next renewal time. We do not refund the difference. You can cancel the booking before the renewal time.
• When each combination applies, the payment amount, the next renewal time and amount, and the monthly song count are set out in the Appendix to the Terms of Service. The screen where you confirm the change also shows the actual amount.

Canceling your plan

• You can cancel your plan from your account page at any time. You can also do this from your Link account (link.com).
• Canceling your plan stops future automatic renewals. If you complete it before the renewal time shown on your account page, you will not be charged the next time.
• You can use the plan until the end of the period you paid for. For this reason, we do not refund fees for the remaining period (this also applies if you cancel a yearly plan partway through). You can undo the cancellation until the end of the period.

Refunds

• For your first payment when you newly subscribe to a paid plan (both monthly and yearly), if it is within 7 days (168 hours) of payment and no download has been completed after payment, we will refund the full amount when you apply through “Ask for the 7-day refund” on your account page. This includes amounts you paid for an immediate change made during these 7 days.
• This refund is limited to once per person (this is checked using the records kept while the account exists and for 2 years from the date you delete your account).
• Only downloads where the file was sent all the way to the end are counted. Failed or stopped downloads and playback on screen are not counted. Downloads on the Free plan before you subscribe are not counted; if, after payment, you download a song made while you were on the Free plan, it is counted. If you do not recognize a record, please contact the operator.
• When you apply for the refund, the paid plan ends and you are switched to the Free plan. Payments by automatic renewal are not covered by this refund.
• In other cases, we do not refund fees you have paid. However, we will refund in the cases set out in Terms of Service, Articles 16 and 7, such as when the main features could not be used for 24 hours or more in a row due to a cause on the operator’s side, when the Service ends, or when an order by a minor is rescinded. For a refund due to a failure, please contact the operator within 90 days of the notice.
• This does not limit your right to terminate or rescind the contract under applicable law, or to receive a refund that comes with it.
• Under its own policy, Link may accept refund requests within 60 days of payment in certain circumstances. This is a separate system from the refunds above, and Link decides whether to give such a refund.

Song storage

• Trial without signing in: deleted automatically 24 hours after making (if you sign in in the same browser within 24 hours, the song is moved to your account as it is).
• Paid plans: kept for 30 days after making, then deleted automatically.
• Free plan: shown on screen and kept for 7 days after making. Deleted automatically after 7 days. If you subscribe to a paid plan within 7 days, the song is kept until 30 days after making.
• When a paid plan ends, the Free plan applies from that time, and songs for which 7 days have passed since they were made are deleted. Please download any songs you want to keep beforehand.
• Songs you have downloaded stay with you, even after you cancel your plan or delete your account.

Deleting your account

• You can delete your account from your account page at any time.
• If you are in a paid plan billing period, automatic renewal stops at the time of your request, and your account and songs are deleted at the end of the billing period. You can keep using the Service until the end of the period. We do not refund fees for the remaining period.
• If you want the 7-day refund, you need to apply for the refund separately from deleting your account.

Business use

• You can also use the Service for business, such as delivering mixes. An account must be used by only one person. If several people in companies and other organizations use the Service, each person must register their own account. Sharing an account among several people, and letting others use your sign-in link or signed-in device, are prohibited. If you break this rule, the operator may suspend your account or take other measures (Terms of Service, Articles 5 and 19).
• If you upload audio files that include another person’s vocals, you must obtain consent from the person whose vocals are included. If you upload audio files that include other people’s works, such as backing tracks for covers (“utattemita”), you must obtain permission from the rights holder. If you upload audio files without permission from the rights holder or consent, the operator may stop or delete the audio files and songs, or take other measures (Terms of Service, Articles 17, 18, and 22).

Costs other than the price

• Internet connection fees
• Consumption tax and other taxes (if you live outside Japan, these may be added at checkout depending on the country or region. For customers who live in Japan, we currently do not add them)
• Depending on the payment currency and the location of the payment provider, foreign transaction fees or currency conversion fees set by your card issuer or other provider may apply (including payments from Japan).

Contact for the Service: contact form (https://kubomi.app/en/#/contact)

On the contact form, please read the explanation above the send button, check “I agree to the handling above”, and then send your inquiry.

Terms of Service / Privacy Policy / Legal notice (Act on Specified Commercial Transactions)

The text of the 2nd edition (effective October 22, 2026) is the 2nd edition.