RUB · Legal
Terms of Use
Last updated 13 October 2026
These Terms of Use (“Terms”) govern your access to rubsynth.com and your purchase and use of RUB, the software instrument published by Sereneware Soundcraft Research (“Sereneware”, “we”, “us”). By buying RUB, activating a license, or using the site, you agree to these Terms. If you do not agree, do not purchase or use the software.
1. The product
RUB is a digital audio instrument offered as downloadable software (Standalone and plugin formats such as AU, VST3, and CLAP, as listed at purchase time). Features may evolve; “lifetime updates” means updates we choose to release for that RUB product line while we support it — not a guarantee of perpetual new development or compatibility with every future OS or host.
2. Accounts and eligibility
You must provide a valid email address at checkout. You are responsible for keeping your license key confidential and for activity under that key. You represent that you are legally able to enter this agreement and that you will use RUB only for lawful purposes.
3. License grant (RUB Full)
When checkout completes, Sereneware grants you a personal, non-exclusive, non-transferable, perpetual license to install and use RUB Full on up to the number of machine seats granted to your license — one (1) seat at $0, more at the paid tiers shown at checkout — that you own or control, subject to these Terms.
- Formats. The Full license covers the standalone and plugin builds we distribute for that purchase.
- Seats. Each activation binds one machine id. You may deactivate a machine (in-app or via license manage) to free a seat for another machine you own or control.
- Offline use. After a successful activation, RUB may run offline using the signed license stored on that machine. When online, the app may soft-recheck entitlement; revoked or unbound keys may clear the local license. Transient network failure does not by itself cancel a previously valid offline license.
- No sharing. You may not publish, sell, rent, lend, or otherwise share your license key, signed license files, or seat capacity with third parties. One buyer, the granted seats for that buyer’s machines — not a studio-wide float beyond those activations.
4. Demo / unlicensed use
Unlicensed or demo builds may play and edit with full sound but are not entitled to save project/preset files (for example .rub) or to audio export, and plugin hosts may mute audio until a machine is licensed. Demo limitations are not a defect; removing them requires a valid Full license activation on that machine.
5. Ownership
RUB, its code, branding, documentation, and related materials remain the property of Sereneware and its licensors. You receive a license to use the software — not ownership of the intellectual property. Third-party libraries (including any host SDKs) remain subject to their own licenses.
6. Restrictions
Except as allowed by mandatory law, you may not:
- reverse engineer, decompile, or circumvent license or copy protection;
- redistribute RUB binaries, license keys, or activation material;
- remove proprietary notices;
- use RUB to infringe others’ rights or to violate applicable export or sanctions rules;
- automate abuse of our license APIs (scraping keys, exhausting seats for others, attacking the service).
7. Price, payment, taxes
RUB is pay-what-you-want: you choose the price at checkout — including $0 — in the stated currency, for a one-time Full license. Payment is processed by Stripe; $0 orders are completed without payment details. You authorize any charge you enter and are responsible for any applicable taxes not collected at checkout.
8. Refunds and chargebacks
Because RUB is delivered digitally and unlocked by a license key, all sales are final once the key has been issued, except where mandatory consumer law requires otherwise. If you believe you were charged in error, contact hello@sereneware.com promptly with your order email and key. Fraudulent chargebacks or payment disputes after key delivery may result in immediate revocation of the license and termination of seats without refund.
9. Suspension and revocation
We may suspend or revoke a license (and wipe activations) if we reasonably believe the key was obtained fraudulently, shared in violation of these Terms, used to attack our systems, or if a payment is reversed. Honest customers who stay within their seat limit are not the target of enforcement — circumvention and resale are.
10. Website and services
The marketing site, docs, checkout, and license APIs are provided as-is. We may modify or discontinue site features. Downtime, email delays, or host/plugin compatibility issues can occur; we will use reasonable efforts to keep licensing services available.
11. Disclaimer of warranties
TO THE MAXIMUM EXTENT PERMITTED BY LAW, RUB AND THE SITE ARE PROVIDED “AS IS” AND “AS AVAILABLE”, WITHOUT WARRANTIES OF ANY KIND, WHETHER EXPRESS, IMPLIED, OR STATUTORY, INCLUDING MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, AND NON-INFRINGEMENT. We do not warrant that RUB will be error-free, uninterrupted, or compatible with every DAW, OS, or hardware configuration.
12. Limitation of liability
TO THE MAXIMUM EXTENT PERMITTED BY LAW, SERENEWARE AND ITS SUPPLIERS WILL NOT BE LIABLE FOR INDIRECT, INCIDENTAL, SPECIAL, CONSEQUENTIAL, OR PUNITIVE DAMAGES, OR ANY LOSS OF PROFITS, DATA, OR BUSINESS, ARISING FROM YOUR USE OF RUB OR THE SITE. OUR TOTAL LIABILITY FOR ANY CLAIM RELATING TO A PURCHASE WILL NOT EXCEED THE AMOUNT YOU PAID FOR THAT LICENSE. Some jurisdictions do not allow certain limitations; in those places our liability is limited to the fullest extent allowed.
13. Indemnity
You will defend and indemnify Sereneware against claims arising from your misuse of RUB, your violation of these Terms, or your infringement of third-party rights — except to the extent caused by our willful misconduct.
14. Privacy
Personal data is handled as described in our Privacy Policy.
15. Changes
We may update these Terms. The “Last updated” date will change. Continued use of the site or software after changes become effective constitutes acceptance of the revised Terms, except where mandatory law requires separate consent. Material license restrictions for existing paid licenses will not be narrowed retroactively without notice.
16. General
These Terms are the entire agreement for the site and RUB license, superseding prior conflicting marketing blurbs. If a provision is unenforceable, the rest remains in effect. Failure to enforce a provision is not a waiver. You may not assign the license without our consent; Sereneware may assign these Terms in connection with a merger, sale, or reorganization. Governing law and venue will be those applicable to Sereneware Soundcraft Research, without regard to conflict-of-law rules, except where mandatory consumer protections in your country of residence apply and cannot be waived.