Terms of Service

Lesson Lineup is studio-management software for independent music teachers: scheduling, attendance, invoicing, records and messages to families. It is provided by Hyungjoon Kim, doing business as Lesson Lineup (“we”, “us”). “You” means the teacher who opens an account. The website, the web app and our phone apps together are “the service”.

By creating an account or using the service you agree to these terms and to our Privacy Policy. If you do not agree, please do not use the service. If you break these terms we may suspend or close your account, as section C explains.

A. Your account

1. You must be at least 18 years old, and able to enter a binding contract, to open an account.
2. The people you teach may be children. They appear in your account as records you keep, and they are never users of the service: students and families have no logins and no portal. Section E and our Privacy Policy explain your responsibilities for their information.
3. A person must sign up. Accounts opened by scripts, bots or other automated means are not allowed.
4. Give us your real name and an email address you can receive mail at. While you are on the free trial, the service does not send messages to your families until you have confirmed that address.
5. An account is for one teacher. Please do not share your sign-in with anyone else; a studio with several teachers needs an account for each of them.
6. Keep your password safe. We cannot be responsible for loss or damage that results from someone else using your sign-in because it was not kept secure.
7. You are responsible for everything done through your account and for everything stored or sent from it, whoever typed it.
8. Each person gets one free trial. Closing an account and opening another, or signing up again under a variation of the same email address, does not start a new one.
9. Do not use the service for anything unlawful, or in a way that breaks the laws where you or your families live, including laws about privacy, marketing messages and copyright.

B. The trial, payment and price

1. Every account starts with a 30-day free trial. We do not ask for a card to start it, so it ends at a choice rather than a charge: to keep using the service afterwards you subscribe, and if you do nothing, nothing is billed.
2. A subscription is billed monthly, in advance, in US dollars. Payments are taken by our payment processor, Stripe; we never see or store your full card number.
3. The standard price is $9.99 a month. Accounts that sign up on or before December 25, 2026 pay the founder rate of $6.99 a month for their first 12 billed months, and $9.99 a month from the thirteenth bill onwards. The 12 billed months start with your first bill, not the day you sign up. The rate an account qualifies for is fixed when it signs up. Our pricing section and the checkout page show the price before you pay.
4. Prices do not include taxes. If a sales or similar tax applies to your subscription you are responsible for it; where we are required to collect one, it will be shown before you pay.
5. If a payment fails, your card is retried and your access continues for 14 days while that happens. If payment still has not gone through after that, your account stops being usable until it is paid.
6. Payments are non-refundable, and we do not give credit for part of a month, except where the law requires otherwise. If you believe you were charged by mistake, write to us and we will look into it.
7. Families never pay us. The service records the payments you receive from families, however they were made; it does not process them, and it never asks a family for card or bank details.

C. Cancelling, and ending an account

1. You can cancel at any time from Business Settings → Membership, which opens the billing portal. Cancelling stops future bills; you keep access until the end of the period you have already paid for. If you cannot reach the portal, write to us.
2. When your access ends, whether you cancelled, a payment failed or your trial finished, your records stay in your account so you can come back to them. Files you uploaded to your file library are deleted 60 days after your access ends, unless you have subscribed again by then.
3. You can delete your account at any time, from Business Settings → Membership on the website or from Settings in the phone app. Deleting an account deletes the whole studio — families, students, lessons, invoices, notes, expenses, receipts and files — and it cannot be undone. If a subscription is still running it is cancelled at once and you are not charged again; as B.6 says, the rest of the period you have paid for is not refunded. We keep a billing record of the deletion for one year (see How long we keep it in the Privacy Policy), so if you believe you were charged by mistake you can still write to us after the account is gone. If you only want to stop paying, cancel instead (C.1): your records stay.
4. We may suspend or close an account that breaks these terms, that puts the service or other people at risk, or that is left unpaid. Where it is reasonable to, we will tell you first and give you a chance to put things right.
5. If we close your account, we will make a reasonable effort to give you a copy of your records on request, unless we closed it because of unlawful activity or the law does not allow it.

D. Changes to the service, prices and terms

1. We are always working on the service, and we may add, change or remove features.
2. We will give you at least 30 days’ notice by email before any change to the price you pay. The move from the founder rate to the standard price described in B.3 is part of the offer rather than a change to it, and we email you before your first bill at the standard price all the same.
3. We may update these terms. When a change matters, we will tell you by email or in the service before it takes effect, and the date at the top of this page will change. If you keep using the service after that, the new terms apply; if you do not accept them, you can cancel.

E. Your content, and ours

• What you put into the service — your records, notes, files and messages — stays yours. You give us permission to store, copy, process and send it only as far as we need to in order to run the service for you.
• The information you keep about families and students is theirs and yours. You are responsible for having their permission, or another lawful reason, to keep it and to contact them, and for telling them how you use it. For that information we act on your instructions, as our Privacy Policy explains.
• Do not upload anything you do not have the right to share, such as music or recordings whose copyright does not allow it. You agree to cover our costs if someone makes a claim against us because of content you uploaded or sent.
• We may remove content that breaks these terms or the law, although we have no duty to review what you store.
• The service itself — the software, its design, the Lesson Lineup name and logo — belongs to us. These terms do not give you any rights to it beyond using it.

F. Acceptable use

1. Messages the service sends for you — invoices, receipts, reminders — go out in your studio’s name, and replies come to you. Send them only to families and contacts connected with your studio, and never use the service for unsolicited bulk or marketing email. Text messages are not currently offered; if we add them, they will come with terms of their own.
2. Do not upload or send viruses or other harmful code, and do not try to get into accounts, data or systems that are not yours.
3. Do not copy, resell, rent or reproduce the service, and do not scrape it or probe it in ways that put a strain on it.
4. Do not suggest that we endorse or are connected with you or your studio beyond your being a customer.
5. Treat other customers and anyone who works on the service with respect. We may close an account immediately for abuse, threats or harassment.
6. Storage is not capped for paying accounts, and we would like to keep it that way. If an account’s uploads or downloads go far beyond what a studio ordinarily uses, we may slow them or ask you to reduce them.

G. General conditions

1. The service is provided “as is” and “as available”. We work to keep it accurate, secure and running, but we do not promise it will be uninterrupted, error-free or suited to every purpose.
2. The service is a record-keeping tool. It is not tax, legal or financial advice. Check the invoices, balances and reports it produces before you rely on them, and keep any records the law requires you to keep.
3. The service works offline: changes you make without a connection are saved on your device and sent when it reconnects. A change made offline on a device that is then lost, or signed out before it reconnects, may not reach your account.
4. We rely on other companies to run the service — Google (Firebase and Google Cloud) for hosting and storage, Stripe for subscription payments, and SendGrid for email. Our Privacy Policy lists them.
5. Support is given by email, in English.
6. To the extent the law allows, we are not liable for indirect, incidental, special or consequential losses, or for lost profits, revenue or data. Our total liability for any claim about the service is limited to what you paid us in the 12 months before the claim arose. Nothing in these terms limits liability that cannot be limited by law, including for fraud, gross negligence or wilful misconduct.
7. These terms are governed by the laws of the State of California, without regard to its conflict-of-law rules. Any dispute about them or the service will be heard in the state and federal courts located in San Francisco County, California, and you and we agree to those courts’ jurisdiction.
8. These terms and the Privacy Policy are the whole agreement between you and us about the service. If a court finds part of them unenforceable, the rest still applies. Our not enforcing a term straight away does not mean we have given it up. You may not transfer your account or these terms to someone else without our agreement; we may transfer them if the service changes hands, and will tell you if we do.

H. Contact us

Questions about these terms, or requests about your account, go to 73hkrn+lessonlineup@gmail.com, or by post to: