Terms of use.

Last updated: 29 September 2026

By installing or using Nivela AutoDimension (the "Software") you agree to these terms. If you do not agree, do not install or use the Software.

1. License

Nivela grants you a personal, non-exclusive, non-transferable and revocable license to use the Software. The license covers up to 2 (two) devices. The Software is licensed, not sold.

There are two forms of license, and which one you hold depends on how you bought it:

• Subscription. Valid while the subscription is active. Covered by section 2.
• Lifetime license. Bought with a single payment and with no expiry date. Covered by section 3.

2. Subscription, billing and cancellation

As a subscription, the Software is distributed on a recurring monthly basis, processed by Stripe. After the free trial period, where applicable, you are charged automatically each cycle until you cancel.

The 7-day free trial is available once per subscriber and once per computer. You may subscribe again at any time, but that does not grant a new trial period. When this happens, the Software tells you so on first run and offers two options: you may end the trial, in which case the first charge is made the same day and access is released immediately, or do nothing, in which case the charge happens on the normal trial end date and access is released then. No early charge happens unless you expressly choose the first option, and a record of that choice is kept.

When you subscribe, Stripe runs a card validity check for a zero or nominal amount. It is not a charge and it is reversed automatically, but it may trigger an alert from your bank. If you cancel during the free trial, no charge is made.

You can cancel at any time through the subscription management portal in my account. Access stays active until the end of the period already paid for. Partial periods are not refunded, except as described in the refund policy.

The 7-day free trial is also your window to change your mind: the contract starts when you subscribe, not when you are charged, so the window is counted from there. Cancel inside it and nothing is charged. There is nothing to refund. Once the trial ends, the first charge is already outside that window, and the way to stop paying from there is the cancellation above, not a refund. The full conditions are in the refund policy.

3. Lifetime license

The lifetime license is a single payment, processed by Stripe. There is no recurring charge, nothing to cancel and no expiry date: the license key keeps activating the Software with no time limit, on up to 2 (two) devices.

It includes plugin updates and support for Revit versions released within the 12 (twelve) months following your purchase. After that period the Software keeps working, with the Revit versions supported up to then, and nothing further is charged. Receiving updates and support for Revit versions released after that window is optional and paid separately.

That limit is stated here rather than left implied, and the reason is concrete: Autodesk releases a new version of Revit every year, and making the plugin run on each one is recurring work. A single payment cannot fund it indefinitely. What never expires is your license, not our obligation to support versions of Revit that did not exist when you bought it.

You have 7 (seven) calendar days from the purchase to change your mind and receive a full refund. It's the same length as the subscription's window, just counted from a different point, since there is no trial before it to count from. Those 7 days are your trial: install the plugin, use it on a real project, and decide within the week. The full conditions are in the refund policy.

4. What you may not do

• Reverse engineer, decompile or disassemble the Software, except where expressly permitted by law.
• Redistribute, resell, sublicense or share your license key with third parties.
• Remove copyright or trademark notices.
• Use the Software for unlawful purposes.

5. Ownership

The Software, including its code, brand and associated materials, belongs to Nivela. No rights beyond the license described here are granted to you.

6. Changes to your project

The Software creates and, depending on the settings you choose, replaces dimensions inside your Revit project. Although changes can be undone with Ctrl+Z within the same session, you are responsible for keeping backups of your work before using the Software, particularly before using it for the first time on a real project.

7. Known limitations

The Software relies on Revit API behavior that Autodesk does not fully document, and that was verified only on the Revit version stated inside the application itself. Using it on other versions, or using features marked as experimental in the interface, may produce incorrect results with no visible warning.

See the current list at known limitations. It is the user's responsibility to check the result before using it on a final sheet.

8. Warranties

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTIES OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING, WITHOUT LIMITATION, WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT.

9. Limitation of liability

To the maximum extent permitted by law, Nivela will not be liable for indirect, incidental, special or consequential damages arising from the use of or inability to use the Software, including loss of data or project rework. Nivela's total liability, in any circumstance, is limited to the amount you actually paid: for a subscription, the total of the last 3 (three) months; for a lifetime license, the price paid for the license.

10. Data

To operate licensing, the Software sends Nivela's server a device identifier generated locally and your license key. Payment is processed directly by Stripe; Nivela does not store card data. Details in the privacy policy.

11. Termination

A subscription license ends automatically if you stop paying, if you breach these terms, or at your request through cancellation.

A lifetime license does not end on its own, and there is no payment to stop. It ends only if you breach these terms, or if you ask for and receive a refund, in which case the key stops activating the Software when the money is returned.

After a license ends, in either form, you must stop using the Software.

12. Changes to these terms

These terms may be updated. Continuing to use the Software after an update constitutes acceptance of the new terms.

13. Governing law

Nivela is established in Brazil, and these terms are governed by Brazilian law. Nothing here removes any right you have under the mandatory consumer law of the country where you live.