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Legal

End User Licence Agreement

Effective 19 August 2026 · Version 1.1
Draft for legal review This document has not yet been reviewed by counsel. It is published here as a working draft. Do not rely on it as final terms.

This agreement is between you and CTRL Colab LLC, a New Mexico limited liability company, and it covers the Audexi application — the software you install and run. It does not cover this website; that is the Terms of Service. Where the two documents touch on the same thing and disagree, this agreement prevails on anything to do with the software.

By installing or using Audexi you accept these terms. If you do not accept them, do not install it, and ask us for a refund under the Refund Policy.

Licence Grant

We grant you a personal, non-exclusive, non-transferable, revocable licence to install and use Audexi on the number of computers described in section 3, for as long as you comply with this agreement.

You may use Audexi for personal work and for commercial work. Converting a client's audio, preparing files you will be paid for, or running it inside a business needs no separate or additional licence from us. What you produce with it is yours; we claim nothing in your output.

How Licensing Works

Audexi is licensed with a serial number. When you buy, we generate one and email it to you; the first time you open Audexi it asks for it, sends it to our activation server together with an anonymous machine identifier, and receives back a signed activation for that computer. From then on the checking happens locally, offline, every launch — Audexi does not need the network to start, and does not ask again.

Roughly once a month, when it happens to be online at launch, Audexi re-checks the serial with us in the background. The rule that check follows is deliberately one-sided: silence never locks you out. If our server is down, if your machine is offline, if this company one day ceases to exist — Audexi carries on exactly as before, indefinitely, with no offline time limit. The only thing that ever deactivates a copy is a signed answer from us saying the serial has been revoked, which happens when a purchase is refunded or charged back (see the Refund Policy).

Your serial identifies your purchase. Treat it like a key: do not post it publicly, put it in a shared repository, or pass it around. If you lose it, email us and we will send it again. Licence files from purchases made before serial numbers keep working, permanently — the activation screen has a "Have a licence file instead?" section for them.

Permitted Installations

One licence covers installation on up to three computers that you own or personally control — a desktop, a laptop, and a spare, for instance. It does not cover installing it for other people, or deploying it across an organisation.

The activation server counts to three and no further: a fourth machine is refused with a note to contact us. Machines change — hardware dies, laptops get replaced — so if you hit the limit legitimately, email hello@ctrlcolab.com and we will free a seat. If you need a licence for a team, the same address works.

Versions Covered, and Upgrades

Your purchase covers the version 1 series of Audexi — every 1.x release — and every update we release within it, at no further cost.

If we ever release a major new version that is a paid upgrade, we will say so clearly and your existing licence will keep working on the version you bought. We will not disable software you have paid for in order to sell you the next one.

We are not obliged to release updates, to keep supporting a given version of Windows indefinitely, or to keep Audexi on sale.

Restrictions

Except where a law gives you the right regardless, or where section 8 grants it for a particular component, you may not:

None of this is meant to stop you using the application the way it was built to be used, including from the command line and inside your own scripts and batch jobs. That is a feature, not a workaround.

Ownership

Audexi is licensed, not sold. We and our licensors keep all intellectual property rights in the application, its source code, its interface, its icons and its name.

Your work is yours. The audio files you convert, and the files Audexi produces from them, are entirely yours. We have no interest in them, no rights over them, and no copy of them.

No Network Use, No Data Collection

Audexi has no accounts, no sign-in, no telemetry, no analytics, and no update check. It does not transmit your files, your file names, your settings, or any record of your use of it. The only thing it keeps on your disk is your licence itself — the activation file that unlocks it — in your user profile; there is no settings file, history, or cache.

There are exactly two network paths, and we would rather name them than claim perfection. The first is the licence check described in section 2: activation once, then roughly monthly — carrying your serial, an anonymous machine identifier, and the app version, and nothing else, ever. The second is the CTRL mark in the status bar, which is a link: clicking it opens ctrlcolab.com in your browser, an ordinary website visit that you initiated. Nothing about your files travels with either.

The Privacy Policy sets this out in full, including what happens when you buy and when you email us.

Third-Party and Open-Source Components

Audexi is built on open-source work, and we are glad to say so. The application includes, among others:

Each component stays under its own licence, and where that licence gives you rights that go beyond this agreement, that licence wins for that component.

LGPL components: your relinking rights

LAME is licensed under the GNU Library General Public Licence, version 2 or later. The LGPL gives you specific rights, and rather than rely on a promise to supply material on request, Audexi is built so that those rights need nothing from us at all:

LAME is not built into Audexi. It ships as a separate library file (libmp3lame.dll on Windows, libmp3lame.dylib inside the application bundle on macOS), which you are free to replace with your own build of LAME — that is the arrangement the LGPL is designed around, and it is why no relinking of Audexi itself is required. The complete source we build it from is published with every release at the Audexi downloads page, and we will supply it on request by email.

A full list of components with their licence texts ships with the application as THIRD-PARTY-LICENSES.txt, installed alongside it.

Trademarks

"Audexi", "CTRL Colab", and our logos are our trademarks. This licence does not give you permission to use them, beyond saying truthfully that you use Audexi. Do not use our marks to name your own product, imply we endorse you, or brand a distribution of the software.

Disclaimer of Warranty

Audexi is provided "as is" and "as available", without warranty of any kind. To the maximum extent permitted by law, we disclaim all warranties, express or implied, including any implied warranties of merchantability, fitness for a particular purpose, accuracy, and non-infringement. We do not warrant that the application will be uninterrupted, error-free, or that it will convert every file you give it.

Two specific behaviours are worth stating rather than burying, because they can cost you work. Audexi will overwrite an existing file that has the same name as the output it is about to write. Only your source files are protected. And its lossless output is 16‑bit, so 24‑bit sources are reduced on the way through, and tags and cover art are not carried from source to output.

Audexi is not a backup, archival, forensic, or mastering tool, and must not be relied on as one. We make no guarantee that any conversion is complete, lossless beyond what the chosen format allows, or suitable for any regulated or archival purpose. Keep your originals.

Some jurisdictions do not allow the exclusion of implied warranties, so parts of this section may not apply to you. Nothing here limits rights you have under the consumer law of your own country.

Limitation of Liability

To the maximum extent permitted by law, we are not liable for any indirect, incidental, special, consequential, or punitive damages, or for any loss of data, audio, revenue, profit, goodwill, or time, arising out of or connected with your use of Audexi — even if we were told such damage was possible.

Our total liability to you, for all claims combined, is limited to the amount you paid for your licence. Given that amount is $4.99, please understand this as what it is: we are a very small company selling a very inexpensive utility, and we cannot carry the risk of your production work. Keep your source files.

Nothing in this section excludes liability that cannot lawfully be excluded — including liability for death or personal injury caused by negligence, for fraud, or for anything else your local law places beyond contract.

Term and Termination

This licence starts when you install Audexi and continues until it ends.

You can end it at any time by deleting the application and your licence file. It ends automatically if you materially breach it — for instance by redistributing the software or sharing your licence file — and it ends if you take a refund.

When it ends you must stop using Audexi and delete it. If it ends because of a refund, your serial is also revoked on our side, and each installed copy deactivates at its next licence check (section 2). Sections 6, 8, 10, 11 and 14 survive termination.

Purchases, Refunds, and Taxes

Audexi costs $4.99, as a one-time purchase. It is not a subscription and it does not auto-renew. There is nothing to cancel.

It is sold by Paddle.com Market Ltd, which acts as our merchant of record and handles checkout, receipts and any tax due. Prices are in US dollars, and tax may be added at checkout depending on where you are.

Refund terms are set out on one page only: the Refund Policy. In short, 14 days, any reason, no justification required — but that page governs, not this summary.

Governing Law

This agreement is governed by the laws applicable at CTRL Colab's principal place of business, without regard to conflict-of-laws principles.

Whatever that answer is, it does not remove protections your own law gives you. If your local consumer law gives you rights or remedies stronger than this agreement, your law wins and we will honour it. We sell worldwide, so this is a real term and not a formality.

General

This agreement, together with the Refund Policy and the Privacy Policy, is the whole agreement between us about the software, and it replaces anything said before it.

If a court finds any part of it unenforceable, the rest stays in force and that part is read as narrowly as needed to make it valid. If we do not enforce something immediately, we have not waived it. You may not transfer this licence to anyone else; we may transfer it as part of a sale or reorganisation of the business, on the same terms.

If we change this agreement, the version you accepted continues to cover the version of Audexi you have. New terms apply to updates and new purchases, and we will change the effective date and version at the top of this page.

Contact

CTRL Colab LLC, a New Mexico limited liability company.

Licensing questions, extra seats, a lost licence file, or the LGPL material described in section 8: hello@ctrlcolab.com.

For legal service or postal correspondence, contact us by email and we will provide a physical address on request.