This is a legal agreement (“Agreement”) between you and Frictionless Systems, LLC (“we,” “us,” “our”). It covers our software and its documentation, whether you install it or use it in a web browser (the “Software”), and the online services we provide through it (the Software and those services together, the “Services”). Our products include Sigma®, Momentum®, Impulse®, and Coefficient®. Parts of this Agreement apply only to a particular product; where they do, the product is named. By creating an account or using the Services, you agree to be bound by this Agreement. If you do not agree, do not create an account and do not use the Services.
You must be at least 16 years old to create an account or use the Services.
You are responsible for giving us accurate information, for keeping your credentials to yourself, and for what happens under your account. If you think someone else has accessed your Sigma account, please recover your Sigma account. You may delete your account at any time; see Termination below.
As long as you follow this Agreement, we give you a personal, non-exclusive, non-transferable, revocable license to use the Services for your own use, including personal or internal business use, but not for resale, sublicensing, or providing the Services to others. That includes running the Software in a web browser and installing it on a reasonable number of devices you own or control.
Apart from the license granted above, you gain no right, title, or interest in the Services, including any copyright, patent, trade secret, or other intellectual property right. You may not reverse engineer, decompile, or disassemble the Software, except where the law expressly permits it.
You agree not to:
If we think you have broken these rules, we may look into it and take whatever action we consider appropriate, including suspending or ending your access.
Some of the Services are free. Others need a paid subscription. The price, the billing period, and what the plan includes are shown to you before you pay.
How your payment is handled depends on how you subscribe, and we tell you which applies before you pay:
Subscriptions renew automatically at the end of each billing period, at the price then in effect, until you cancel. Cancel in the same place your payment is handled: with the app store if it took your payment, or, if we took it directly, in your account settings. Canceling stops the next renewal and does not cut short the period you have already paid for: your paid access runs to the end of it, and after that your account keeps whatever access we offer without a subscription.
Cancel your subscription before you delete your account. Where an app store takes your payment, your subscription is with that store rather than with us, so deleting your account does not stop it. You can cancel with the store either before or after you delete the account.
Payments are not refundable, except where the law requires a refund. Deleting your account does not refund a period you have already paid for.
We may change our prices. If a change affects a subscription you already have, we will tell you at least 30 days before it takes effect, and it applies from your next billing period after that. Depending on the app store and the size of the increase, you may have to accept the new price for the subscription to continue: if you do not, it will not renew, and your access ends when the period you have already paid for runs out. If you do not want to pay the new price, you can cancel before it takes effect.
Prices are shown to you before you subscribe. Where an app store handles the purchase, that store sets the currency and applies the taxes.
We set rate limits and usage limits on the Services. They keep the Services running, keep them available to everyone using them, and keep what they cost us predictable. They apply to free and paid use alike, though the limits themselves may differ between plans. We may change limits at any time.
If you reach a limit, the Services may slow down, hold your request, or stop responding to you until the limit resets. Applying a limit is not a failure to provide the Services and is not a breach of this Agreement by us, and it does not earn you a refund or a credit.
A limit is a ceiling, not a promise. We do not guarantee you can use everything a limit allows, and we may still act against use that harms the Services or the people using them even where it stays inside the limits. Working around a limit, or trying to, is covered under Acceptable Use above.
You keep ownership of the questions, messages, and other content you send to the Services (“Your Content”).
Running the Services means handling Your Content, so you give us a worldwide, non-exclusive, royalty-free license to host, store, process, transmit, and display it, and to have our service providers do the same on our behalf.
We use this license to run and support the Services for you. We also use Your Content to improve Sigma, but only in the circumstances described in the Privacy Policy, such as when you opt in or send a conversation as feedback. This license gives us no other rights in Your Content. It ends when Your Content is deleted, apart from copies we keep as described in the Privacy Policy or as the law requires.
If you choose to provide feedback on a Sigma conversation, you also allow us to keep and read that conversation so we can look into what went wrong, as described in the Privacy Policy. You can withdraw that at any time by deleting the conversation, and deleting your account withdraws it for every conversation you have sent. Withdrawal does not reach the copies described there: a conversation one of our safety checks has flagged, or a copy a provider retained to monitor for abuse.
Sigma provides personal and leadership development coaching for informational and educational purposes only. It is not medical, psychological, psychiatric, or other professional advice; it does not diagnose or treat any condition; and it is not a substitute for care from a licensed professional. Never disregard professional advice or delay seeking it because of something Sigma has told you. Sigma may decline to answer or continue a conversation that falls outside the coaching it is designed to provide, and may point you to more appropriate resources instead.
The Services are not an emergency or crisis service. If you are in crisis, or you believe you may harm yourself or someone else, contact your local emergency number immediately. In the United States you can call or text 988 to reach the Suicide & Crisis Lifeline.
Sigma's responses are generated by artificial intelligence. They may be inaccurate, incomplete, or inappropriate for your circumstances. Use your own judgment before acting on them.
We cannot promise the Services will always be available or error-free. We may change, pause, or stop offering any part of them. Where it is practical, we will give reasonable notice before we stop offering a feature you rely on.
The Services need an internet connection, and providing the device and the connection is up to you. Your carrier or internet provider may charge you for the data the Services use, including data used while the Software runs in the background, and those charges are yours to pay.
The Software may contact our servers to check for updates, such as bug fixes, configuration changes, and new versions. These checks use your network connection and may count against a data plan. An installed copy may need those updates before it will keep working.
We handle information collected through the Services as described in the Privacy Policy, which is part of this Agreement.
The Services are provided “as is” and “as available.” We make no promises about how they will perform or what results you will get from them, and we make no warranties, express or implied, as to noninfringement, merchantability, or fitness for a particular purpose.
You take on the risks of using them. Those include software errors, damage to equipment, loss of data, and the Services being interrupted or unavailable. Deciding whether they are right for you is your responsibility. Some places do not allow implied warranties to be excluded, so parts of this may not apply to you.
To the fullest extent permitted by law, we will not be liable to you for any indirect, incidental, consequential, special, exemplary, or punitive damages, or for any lost profits, lost data, lost goodwill, or lost business opportunity, arising out of or relating to your use of the Services, under any theory of liability, even if we were told such damages were possible.
To the fullest extent permitted by law, our total liability under this Agreement will not exceed whichever of these amounts is greater:
Nothing here excludes or limits our liability for death or personal injury caused by our negligence, for fraud, for gross negligence or willful misconduct, or for anything else the law does not allow us to exclude. Some places do not allow certain limits on liability, so parts of this may not apply to you, and nothing in this Agreement affects consumer rights you cannot sign away.
You may stop using the Services and delete your account at any time, as described in the Privacy Policy. Deleting your account does not by itself cancel a paid subscription; cancel it wherever your payment is handled, as described under Subscriptions and Billing above. We may suspend or end your access if you break this Agreement, if the law requires it, or if serving you would put us or other people using the Services at risk. Where it is practical and lawful, we will tell you first and give you a chance to put things right. When access ends, your license ends too, and your information is handled as described in the Privacy Policy. The sections on Your Content, No Warranty, Limitation of Liability, Governing Law, and General continue to apply after termination, as do payment obligations incurred before termination.
If you obtained the Software through a third-party app store or distribution platform, that platform's terms also apply to your use of it, and this Agreement governs to the extent it does not conflict with them. For software obtained from the Apple App Store, the minimum terms of Apple's Licensed Application End User License Agreement apply, Apple is not responsible for the Software or for any claims relating to it, and Apple and its subsidiaries are third-party beneficiaries of this Agreement with the right to enforce it against you. For software obtained from Google Play, the Google Play Terms of Service also apply.
This Agreement is governed by the laws of the Commonwealth of Massachusetts, without regard to its conflict of laws provisions. You consent to the exclusive jurisdiction of the state and federal courts located within Massachusetts, and to personal jurisdiction in those courts. If you live somewhere whose law lets you bring a case locally, or gives you protections you cannot sign away, this section does not take that away from you.
This Agreement, together with the Privacy Policy, is the entire agreement between you and us about the Services, and it replaces any earlier agreement between us, spoken or written. It can be changed only as described under Changes to This Agreement below.
This Agreement is personal to you: you may not transfer it to anyone else without our written consent, though we may transfer it if our business is merged, acquired, or sold. If we do not enforce part of this Agreement, we have not given up the right to enforce it later, and no waiver counts unless we put it in writing and an authorized representative signs it. If a court decides that any part of this Agreement is invalid, the rest of it still applies. Headings are there to help you find things. Questions can go to ideal@frictionless.systems.
We may update this Agreement from time to time, including the Privacy Policy that forms part of it. If we make a material change, we will tell you by email or with an in-product notification. If you keep using the Services after a material change takes effect, you accept the updated Agreement. If you do not agree, stop using the Services and delete your account before then.
This Agreement was last updated on September 1, 2026.