Terms of Service

Last Updated: September 29, 2026

1. Introduction and Acceptance

Welcome to HeartMuLa, an AI-powered music generation platform. These Terms of Service ("Terms") are a legally binding agreement between you ("you" or "your") and ASTRAFLARE LIMITED, a company registered in Hong Kong that operates HeartMuLa ("HeartMuLa", "we", "us" or "our").

By accessing or using HeartMuLa, you agree to be bound by these Terms, our Privacy Policy, and all applicable laws. If you do not agree to these Terms, you must not use our services.

Service Description: HeartMuLa provides AI-powered music generation services, allowing users to create original music with vocals and instrumentals using advanced machine learning models.

Age Requirement: You must be at least 13 years old to use HeartMuLa. Users between 13-18 require parental consent. By using our service, you represent that you meet these age requirements.

Modifications: We reserve the right to modify these Terms at any time. Material changes will be notified via email or platform notice. Continued use after changes constitutes acceptance.

2. User Accounts

HeartMuLa uses Google OAuth for authentication. By creating an account, you agree to the following:

Account Creation

  • You must provide accurate information (email, name)
  • One account per person (no multiple accounts for signup bonuses)
  • You are responsible for maintaining account security
  • You must immediately notify us of unauthorized access

Account Security

  • Do not share your account credentials
  • We use database sessions (not JWT) for security
  • You are liable for all activity under your account
  • Suspicious activity may result in temporary suspension

Account Termination

  • You may delete your account at any time via account settings
  • We may suspend or terminate accounts for Terms violations
  • Upon termination, unused credits are forfeited (non-refundable)
  • Subscription cancellations follow the refund policy in Section 4

3. Credit System

HeartMuLa operates on a credit-based system for music generation:

Credit Costs

Each song costs 12 credits, whatever its length. Every generation gives you two versions; keeping the second one as its own track costs 6 credits (subscribers keep both at no extra cost).

Signup Bonus

New users receive a one-time signup bonus (currently 12 credits — enough for one song). It cannot be claimed again by creating more accounts.

Earning Credits

Users can earn free credits through the daily check-in (up to 12 credits per 7-day cycle), a one-time reward for sharing a song, and occasional promotions.

Purchasing Credits

Credits can be purchased via Stripe as one-time packs (currently 108, 300 and 1,008 credits); new customers may also be offered a one-time first-purchase pack of 36 credits. Any purchase lets you download your songs. See the Pricing page for current prices. All sales are final.

Credit Expiration

Purchased credits never expire as long as your account is active. Bonus credits (signup, promotional) may have expiration dates as specified at time of award.

Refunds

7-day first-purchase guarantee: your first purchase on HeartMuLa (a credit pack or a plan's first payment) is refunded in full if you ask within 7 days of paying — email [email protected]. Remaining credits and download access from that purchase are removed. Once per customer and payment method; fraud and abuse are excluded. Other purchases are non-refundable, except for billing errors or technical failures that prevent you from using the service.

Failed Generations

If a music generation fails due to platform error, credits are automatically refunded. User-caused failures (e.g., content policy violations) do not qualify for refunds.

4. Subscription Plans

HeartMuLa offers monthly and yearly subscription plans. Every plan makes the same full-length songs; plans differ in credits and features:

Free

Signup bonus and earned credits, public songs only, listen online (downloads come with any purchase)

Starter ($9.99/month or $59.99/year)

150 credits/month (≈12 songs), private songs, downloads, both versions of every song

Pro ($19.99/month or $119.99/year)

500 credits/month (≈41 songs), private songs, downloads, both versions of every song, commercial license

Business ($39.99/month or $239.99/year)

1,500 credits/month (≈125 songs), private songs, downloads, both versions of every song, commercial license, API access on request

Billing Cycle: Subscriptions are billed monthly or yearly, on the same day you subscribed. Subscription credits are allocated at the start of each billing cycle.

Auto-Renewal: Subscriptions automatically renew unless canceled before the next billing date. You can cancel anytime via account settings.

Cancellation: Cancel anytime — you retain access and unused credits until the end of your current billing period. After cancellation, you revert to the Free tier.

Refund Policy: The first payment of your first plan is covered by the 7-day guarantee in Section 3. A renewal can be refunded within 7 days if you haven't used any of that period's new credits. Otherwise fees are non-refundable; if you cancel mid-cycle, you keep access until the period ends, with no pro-rated refund.

Downgrades: Downgrading to a lower tier takes effect at the next billing cycle. Current-cycle benefits remain active.

Upgrades: Upgrading mid-cycle is pro-rated — you pay the difference for the remaining days. New credits are granted immediately.

5. Music Generation and Content Ownership

Understanding ownership and licensing of AI-generated music:

User-Generated Content (Your Inputs)

You retain full ownership of your prompts, lyrics, and any original creative input you provide. By using HeartMuLa, you grant us a license to process this input for music generation.

AI-Generated Music (Outputs)

The web app generates music with a third-party hosted AI model. AI-generated music may not be eligible for copyright registration, and we do not guarantee that distribution platforms or YouTube Content ID will accept it. What you may do with a song depends on the plan you were on when you made it:

Free

Personal use only. Your songs are public and may appear in Explore. You may share them on social media with attribution. No commercial use.

Starter and credit packs

Personal use. You can download your songs; Starter can also make private songs. No commercial use.

Pro and Business

Commercial license for songs you make while your Pro or Business subscription is active — in videos (including monetized YouTube), podcasts, games, ads, releases and client work. No attribution required. These songs stay licensed after you cancel. Songs made before you subscribed or after your subscription ends are for personal use. Business: API access on request.

  • You may not claim that AI-generated music was created solely by you (misrepresentation)
  • You may not register AI-generated music for copyright in jurisdictions that prohibit AI-authored works
  • You may not use music to train competing AI models
  • Attribution to HeartMuLa is appreciated but not required (except Free tier)

6. Intellectual Property

HeartMuLa respects intellectual property rights and expects users to do the same:

Platform IP

The HeartMuLa brand, logo, website design, and proprietary code are owned by HeartMuLa and protected by copyright and trademark laws.

AI Model

The web app generates music with a third-party hosted AI model. Separately, the open-source HeartMuLa model is released under the Apache 2.0 license; that license applies when you run that model yourself, not to songs made in the web app.

Trademarks

"HeartMuLa" and our logo are trademarks. You may not use them without permission, except when attributing music generation.

  • Users must not submit copyrighted lyrics or request impersonation of copyrighted artists
  • If you believe content on HeartMuLa infringes your copyright, email [email protected] with the subject line "DMCA Notice"
  • Repeat infringers will have their accounts terminated

7. Acceptable Use Policy

You agree not to use HeartMuLa for the following prohibited activities:

Illegal Content

Content promoting violence, terrorism, child exploitation, illegal drugs, or other criminal activity

Hateful Content

Discrimination, harassment, or hate speech targeting race, religion, gender, sexual orientation, disability, etc.

Impersonation

Requesting music that impersonates real artists or copyrighted characters (e.g., 'make it sound like Taylor Swift')

Spam & Abuse

Automated bulk generation, API abuse, credit farming via fake accounts, or scraping our platform

Malicious Use

Hacking, injecting malicious code, or attempting to reverse-engineer our AI models

Violations may result in: (1) Content removal, (2) Credit forfeiture (no refunds), (3) Account suspension or permanent ban, (4) Legal action in severe cases.

Report violations to [email protected]. We review all reports within 48 hours.

8. Payment Terms

All payments are processed securely via Stripe:

Payment Processor

Stripe, Inc. handles all credit card transactions. HeartMuLa does not store your payment card details. See Stripe's privacy policy and terms.

Pricing

Prices are listed in USD and may vary by region due to local taxes or currency conversion. Current pricing is available at heart-mula.com/pricing.

Taxes

Prices exclude applicable taxes (VAT, sales tax, GST). You are responsible for any taxes owed in your jurisdiction.

Failed Payments

If a subscription payment fails, we will retry 2-3 times. After repeated failures, your subscription will be downgraded to Free.

Billing Disputes

Contact [email protected] within 30 days of a charge you believe is incorrect. We will investigate and issue refunds if warranted.

Price Changes

We may change subscription prices with 30 days' notice. Existing subscribers are grandfathered at their current rate until they cancel or change plans.

9. Disclaimers and Warranties

AS-IS SERVICE: HeartMuLa is provided "as is" and "as available" without warranties of any kind, express or implied.

No Guarantee of Quality: While we strive for high-quality output, AI-generated music may occasionally have artifacts, errors, or unexpected results. We do not guarantee that every generation will meet your expectations.

No Guarantee of Availability: We aim for 99.9% uptime but do not guarantee uninterrupted service. Scheduled maintenance and unexpected outages may occur.

AI Limitations: Our AI models are trained on diverse datasets but may have biases or limitations. Outputs may not always align perfectly with prompts.

Third-Party Services: We rely on third-party APIs (Google, Stripe, kie.ai). We are not liable for their downtime or policy changes.

User Responsibility: You are solely responsible for how you use AI-generated music. Ensure compliance with applicable laws and licenses.

10. Limitation of Liability

TO THE MAXIMUM EXTENT PERMITTED BY LAW:

HeartMuLa, its affiliates, and service providers shall not be liable for any indirect, incidental, consequential, or punitive damages arising from your use of the platform, including but not limited to:

• Loss of profits, revenue, or business opportunities

• Loss of data or generated content

• Copyright claims related to AI-generated music

• Reputational harm from content you create

• Unauthorized access to your account

11. Dispute Resolution and Governing Law

Governing Law: These Terms are governed by the laws of the Hong Kong Special Administrative Region, and the courts of Hong Kong have jurisdiction over any dispute. This does not take away any mandatory consumer protection you have under the law of the country where you live, and where that law allows it you may also bring a claim in the courts there.

Talk to us first: If something goes wrong, please email [email protected] before taking any other step — most problems are solved there. We reply within 30 days at the latest.

EU and UK users: You keep the right to complain to your local consumer protection authority, or to your data protection authority about privacy matters.

Urgent matters: Either party may ask a court for urgent relief, for example to stop an infringement of intellectual property.

12. Termination

User-Initiated: You may delete your account at any time via account settings. Upon deletion:

• Your account data will be deleted within 30 days

• Public music may remain on the platform (you can request removal)

• Unused credits are forfeited (non-refundable)

• Subscription access continues until the end of your billing cycle

Platform-Initiated: We may suspend or terminate your account immediately if:

• You violate these Terms or our Acceptable Use Policy

• You engage in fraudulent activity (e.g., credit card chargebacks)

• Your account is inactive for 2+ years

13. Changes to Terms

We may update these Terms from time to time. Changes will be effective upon posting, unless otherwise stated.

How We Notify You:

• Material changes: Email notification to your registered address

• Minor updates: Platform notice or banner

• Version history: Available upon request

Your Options:

14. Miscellaneous

Entire Agreement: These Terms, together with our Privacy Policy, constitute the entire agreement between you and HeartMuLa, superseding any prior agreements.

Severability: If any provision is found invalid or unenforceable, the remaining provisions remain in effect.

No Waiver: Our failure to enforce any right or provision does not constitute a waiver of that right.

Assignment: You may not assign or transfer these Terms. We may assign our rights to an affiliate or successor in interest.

Force Majeure: We are not liable for delays or failures due to events beyond our reasonable control (e.g., natural disasters, pandemics, wars, cyberattacks).

Language: In case of discrepancies between translations, the English version prevails.

15. Contact Information

HeartMuLa is operated by ASTRAFLARE LIMITED (Hong Kong). For questions, support or legal notices about these Terms:

Support, billing and legal notices: [email protected]
Privacy requests: [email protected]
Copyright (DMCA) notices — subject line "DMCA Notice": [email protected]

We respond to all inquiries within 48 hours (business days). Legal notices may require up to 30 days for full resolution.