ECHOTEKAOpen the lab

Terms and conditions

Last updated: 4 November 2026 · Operator: ECHOTEKA Ltd., a company registered in Bulgaria, EIK 208941872, registered office: 2A Zhatva Str., Bistritsa village, 1444 Sofia, Bulgaria

1. The service

Echoteka is web-based software that masters audio automatically. You upload a track, the software processes it, and you download the result together with its measurements. No person listens to, edits or approves your track as part of the service. These terms apply between you and ECHOTEKA Ltd. ("we") whenever you use echoteka.ai.

2. Accounts

Basic track analysis and 1 free master a day are available without an account. An account needs a valid email address. You must be at least 16 years old to create one, and you are responsible for keeping your password safe. One person may hold one free account.

3. Free use

Basic analysis is free. Everyone may make 1 free master per day: without an account, one per device or network (IP address) per day; with an account, one per account per day. Days are counted in UTC. Every new account also gets 3 bonus masters, added to its balance as credits. Unused free daily masters cannot be carried over to the next day, and free masters cannot be transferred or exchanged for money.

4. Credits and payment

Mastering is free within the daily allowance and the bonus masters described in section 3. Paid credit packs are on sale: 1 track for €3, 3 tracks for €7.50, 10 for €19 and 30 for €39. One credit is one mastered track, packs are one-time purchases with no subscription, nothing renews automatically, and the price shown at the time of purchase applies, including any applicable taxes. Credits do not expire while your account exists. If a master fails, its credit is returned to your balance automatically. Credits are not money, cannot be transferred to another account and cannot be exchanged for cash, except through a refund under the Refund Policy.

Our order process is conducted by our online reseller Paddle.com. Paddle.com is the Merchant of Record for all our orders. Paddle handles payment, invoicing and the sales tax or VAT on each order. When you buy credits, you also accept the Paddle Buyer Terms.

5. Refunds and your right of withdrawal

Every paid purchase is covered by a 14-day money-back guarantee, described in the Refund Policy. If you are a consumer, you also have a statutory right to withdraw from a distance contract within 14 days, and the Refund Policy explains when that right applies. Nothing in these terms reduces any right you have under the law of your country.

6. Your tracks

You keep all rights to the audio you upload and to the masters we produce from it. You confirm that you own the audio or have permission to process it, including, for music made with an AI generator, permission under that generator's terms. You give us a limited licence to store and process each file only to provide the service to you, for the periods stated in the Privacy Policy. We do not sell your audio and do not use it to train machine-learning models. We share it only with the service providers that process it for us, as described in the Privacy Policy.

If you believe material on Echoteka infringes your copyright, send a notice as described on our DMCA and copyright notices page.

7. Acceptable use

Do not upload content you have no right to process, do not try to disrupt, overload or reverse-engineer the service, do not use multiple devices, networks or accounts to collect more free masters than the daily allowance, and do not use the service to break any law. We may suspend an account that does; unused paid credits of a suspended account are refunded unless the suspension is for fraud.

8. What we promise about results

We measure every master and tell you when a loudness or peak target was not reached. Because sound is a matter of taste, we do not promise that a master suits a particular purpose; the money-back guarantee is there for that case. If you are a consumer, the service must match what was agreed: the statutory guarantee of conformity under the Bulgarian Act on the Supply of Digital Content and Digital Services and the Sale of Goods, which transposes Directive (EU) 2019/770, applies, and nothing in these terms limits it.

9. Liability

Nothing in these terms limits liability for intent or gross negligence, for death or personal injury, or any right a consumer has under mandatory law. Otherwise, for business users our total liability is limited to the amount paid to us in the 12 months before the claim, and we are not liable for lost profits or lost data — keep your own copies of your tracks.

10. Availability and changes

We work to keep the service available but may pause it for maintenance. We may change these terms; material changes are announced by email or in the app at least 30 days in advance, and if you do not accept them you may close your account and have unused paid credits refunded.

11. Closing your account

You can close your account at any time by writing to support@echoteka.ai. We delete it as described in the Privacy Policy.

12. Governing law and disputes

These terms are governed by the law of Bulgaria. If you are a consumer, you also keep the protection of the mandatory law of the country where you live, and you may bring a claim in the courts of that country. Please write to us first — most problems are solved by email.

Out-of-court dispute resolution: we are not committed to a particular out-of-court dispute resolution body. Consumers may use the out-of-court dispute resolution bodies listed by the Commission for Consumer Protection of Bulgaria (kzp.bg). The European Commission's online dispute resolution platform closed on 20 July 2025, so we no longer link to it.

13. Company information and contact

Write to the email address above for any question about these terms.