EM Toolkit · Privacy Policy · Terms of Use

Terms of Use (EULA)

EM Toolkit · Effective date: October 2, 2026

These Terms of Use (“Terms”) are an agreement between you and Tiankun Li (“we”, “us”) for your use of the EM Toolkit app (the “App”). By signing in to or using the App, you agree to these Terms and to our Privacy Policy. If you do not agree, do not use the App.

1. What the App is

EM Toolkit is a reference app about electronic music. It contains descriptions of genres, sounds, instruments, effects, vocal styles, sound-design and composition terms, along with suggested phrases (“AI Prompt Tips”) that you can use when describing music to AI music tools. The content is provided for learning and informational purposes.

2. Your account

• You need to sign in with Google or Apple to use the App. You must be at least 13 years old (or the minimum age required in your country, 16 in some EEA countries).
• Your account is for you personally. Do not share it or sign in with an account that is not yours.
• You can delete your account at any time in the App (Profile → Delete Account).

3. Free trial and subscriptions

• Free trial. Each account gets 7 days of free, full access starting from its first sign-in. No payment is needed for the trial. Each person may use the free trial only once; creating extra accounts to obtain additional trials is not allowed.
• Subscriptions. After the trial, continued access requires an auto-renewing subscription, offered monthly or yearly. Current prices are shown in the App and on the App Store before you buy, and may vary by country.
• Payment. Payment is charged to your Apple ID account when you confirm the purchase.
• Automatic renewal. Your subscription renews automatically for the same period and price unless auto-renew is turned off at least 24 hours before the end of the current period. Your account will be charged for renewal within 24 hours before the end of the current period.
• Managing and cancelling. You can manage or cancel your subscription in your Apple ID account settings (Settings → [your name] → Subscriptions). Cancellation takes effect at the end of the current billing period. Deleting the App or your EM Toolkit account does not cancel your subscription.
• Refunds. Purchases are processed by Apple, and refund requests are handled by Apple under its policies (see reportaproblem.apple.com). Nothing in these Terms limits any refund or withdrawal rights you have under the laws of your country.
• Price changes. If we change subscription prices, we will give notice as required by Apple and applicable law, and you can cancel before the new price applies.

4. License and acceptable use

We grant you a personal, non-exclusive, non-transferable, revocable license to use the App on Apple-branded devices that you own or control, for your own non-commercial use, as permitted by the Usage Rules in the Apple Media Services Terms and Conditions. You agree not to:

• copy, scrape, extract, republish, sell or redistribute the App’s content or database, in whole or in substantial part;
• bypass or interfere with the App’s access controls, trial limits or subscription checks;
• reverse engineer, decompile or modify the App, except where the law expressly allows it;
• use the App in any unlawful way or in a way that harms the App, its servers or other users.

5. Content and intellectual property

The App and its content (including the text, descriptions, prompt tips, organization of the library and design) are owned by us or our licensors and are protected by intellectual property laws. You may copy individual prompt phrases for use in your own creative work. Names of artists, instruments, products and brands mentioned in the App (for example drum machines or synthesizers) belong to their respective owners; they are used only to identify them, and their use does not imply any affiliation with or endorsement by those owners.

6. AI music tools

We are not affiliated with any AI music service. Prompt tips are suggestions only; results from AI tools vary and we do not guarantee any particular output. Your use of third-party AI tools, and anything you create with them, is subject to those tools’ own terms, and you are responsible for complying with them.

7. Feedback

If you send us suggestions or feedback, we may use them to improve the App without any obligation to you. Please do not include sensitive personal information in feedback.

8. Disclaimers

We work to keep the content accurate, but music terminology and genre definitions are often subjective and evolving. The App is provided “as is” and “as available”, without warranties of any kind to the extent permitted by law, including warranties of accuracy, fitness for a particular purpose or uninterrupted availability. We may add, change or remove content and features at any time.

9. Limitation of liability

To the maximum extent permitted by law, we are not liable for any indirect, incidental, special or consequential damages, or for any loss of data, profits or goodwill, arising from your use of the App. Our total liability for any claim relating to the App is limited to the amount you paid for the App in the 12 months before the claim. Nothing in these Terms excludes or limits liability that cannot be excluded or limited by law, or any mandatory rights you have as a consumer in your country.

10. Termination

You may stop using the App and delete your account at any time. We may suspend or terminate your access if you seriously or repeatedly breach these Terms. If we discontinue the App, we will give reasonable notice where possible.

11. Apple App Store terms

The following applies because you obtained the App from the Apple App Store:

1. These Terms are between you and us only, not with Apple Inc. (“Apple”). We, not Apple, are solely responsible for the App and its content.
2. Your license to use the App is limited to use on Apple-branded products that you own or control, as permitted by the Usage Rules in the Apple Media Services Terms and Conditions.
3. Apple has no obligation to provide any maintenance or support services for the App.
4. If the App fails to conform to any applicable warranty, you may notify Apple, and Apple will refund the purchase price (if any) for the App. To the maximum extent permitted by law, Apple has no other warranty obligation with respect to the App.
5. We, not Apple, are responsible for addressing any claims by you or any third party relating to the App or your possession and use of it, including product liability claims, claims that the App fails to conform to any legal or regulatory requirement, and claims under consumer protection, privacy or similar laws.
6. If a third party claims that the App or your possession and use of it infringes that third party’s intellectual property rights, we, not Apple, are solely responsible for the investigation, defense, settlement and discharge of that claim.
7. You represent that you are not located in a country subject to a U.S. Government embargo or designated as a “terrorist supporting” country, and that you are not listed on any U.S. Government list of prohibited or restricted parties.
8. You must comply with any applicable third-party terms when using the App.
9. Apple and its subsidiaries are third-party beneficiaries of these Terms, and upon your acceptance of these Terms, Apple will have the right (and will be deemed to have accepted the right) to enforce them against you as a third-party beneficiary.

12. Changes to these Terms

We may update these Terms from time to time. We will change the effective date above and, for significant changes, let you know in the App before they take effect. If you keep using the App after changes take effect, you accept the updated Terms.

13. Governing law

These Terms are governed by the laws of the State of California, United States, without regard to conflict-of-law rules. If you are a consumer in the EEA, UK or another country with mandatory consumer protection laws, you keep the protection of those laws and may bring claims in the courts where you live.

14. Contact

Tiankun Li
Email: support@emtoolkit.cn