At Frictionless Systems, we respect your privacy and are committed to protecting your personal information. This policy explains how we collect, use, and safeguard your data when you visit our website and when you use our products and services, which include Sigma®, Momentum®, Impulse®, and Coefficient®. Parts of it apply only to a particular product; where they do, the product is named.
Frictionless Systems, LLC is responsible for the personal information covered by this policy.
Key points
We use safeguards designed to protect your information
We don't sell your personal information
You have control over much of your data: you can access, correct, and delete it, subject to the limited retention described below
We collect only what we need to deliver and improve our services
1. What information we collect
1.1 Contact Information
We collect information such as your name and email address when you:
Create an account
Contact us for support or sales inquiries
Sign up for communications or newsletters
When you contact us, we also keep the correspondence itself, so that we can follow up when a bug you reported is fixed, refer back to earlier messages to understand your inquiry, and see what we have already tried.
If you buy from us directly rather than through an app store, we may additionally collect information such as your phone number or billing address. Where an app store handles the purchase, we receive only what that store sends us; see Purchase Information below.
1.2 Product Information
Profile data: Your profile information to provide personalized experiences
Conversation data (Sigma): Your questions and Sigma's responses to provide conversation history and personalized coaching
Feedback (Sigma): A rating you give a conversation. We collect the rating, as well as that conversation and any comment you add to it
1.3 Usage Information
To maintain and improve our services, including our website, we collect:
Device and technical information: What devices and OS versions are being used, how our products are performing
Usage statistics: How many people use our products per day, in what countries and languages the products are being used, and what features are most popular
Error logs: Technical information when our products encounter an error
Support identifier: A code that identifies your installation of the app. We use it to deliver configuration to the app, to group its diagnostic reports, and to find those reports when you contact us about a problem. It means nothing to the providers who receive it, but we can connect it to your account
Crash, error, and performance reports are sent to the providers that run those tools for us, along with your support identifier and your IP address, which tells us the country a report came from. Where the law where you are requires your consent for these reports, we ask before we collect any of them. Elsewhere they are on, and you can turn them off at any time in the app.
Delivering configuration to your installation works differently. The app needs it to run correctly, and it is how we can fix a problem affecting one device, so it is not something you turn off.
1.4 Purchase Information
When you subscribe through an app store, that store takes your payment under its own policy and sends us limited information about the transaction:
An order number
What you purchased, and when
When the subscription renews
How much you paid
Sometimes the postal code or country of the purchase
We link this to your account so we can give you the features you paid for, resolve billing problems, and prevent fraud. We do not receive your payment card or bank account details.
2. How we use information
We use your information to:
Provide our services: Deliver the features and functionality you expect
Improve our products: Analyze usage to prioritize features and fix bugs
Provide support: Respond to your questions and resolve technical issues
Automate support: We may analyze past inquiries to understand which problems occur most often. We may also use automated or artificial-intelligence tools to help answer inquiries and to improve and develop our support systems. We do not use Sigma conversations for this
Send communications: Deliver transactional information, legally required notices, and surveys. And with your consent, deliver newsletters or marketing
Ensure security: Protect against abuse, safety, and security threats
Sigma: These uses apply only to Sigma.
Improve its knowledge: We measure which topics Sigma answers with low confidence so we can expand its knowledge
Act on your feedback: Look into quality problems in conversations you have chosen to send us
Improve its responses with your permission: If you opt in, use your conversations to evaluate and improve how Sigma responds. This is off unless you turn it on, and you can turn it off again at any time
Scope screening: We check whether a message falls outside of the service Sigma provides, which is personal and leadership development coaching. Sigma uses the result to decline requests it is not designed to serve and to point you to more appropriate resources. We keep a record that a message fell outside scope, and may flag it for review under Acceptable Use in the Terms of Service
2.1 Legal bases for processing
Where data protection law requires a legal basis for processing your information, we rely on:
Performance of a contract: To create and maintain your account and deliver the features you ask for
Legitimate interests: To respond to inquiries you send us, secure our services, prevent abuse, keep Sigma within the service it is designed to provide, fix defects, and measure where Sigma's knowledge needs expanding, balanced against your rights and freedoms
Consent: For marketing communications, for crash, error, and performance reporting where the law where you are requires it, and anywhere else we ask for it separately in the product—such as choosing to send us a conversation as feedback or opting in to helping to improve Sigma. You can withdraw consent at any time
Legal obligation: Where we are required to retain or disclose information by law
3. How we share information
We do not sell your personal information. We identify the companies we work with by category rather than by name, so that this policy does not go out of date when one of them changes. Email privacy@frictionless.systems and we will tell you which ones we currently use.
We may share your information in limited circumstances:
AI providers (Sigma): To generate a response, we send your conversation to an AI provider whose model powers Sigma.
What is sent: Your conversation, together with any profile details we may add so that Sigma can personalize its response, such as your name or gender
Why it is sent: To generate and return Sigma's response
Training: Our agreements prohibit the provider from using your conversations to train its models
Retention and review: A provider may keep a copy for a limited period to monitor for abuse. Some providers keep a copy only when an automated safety check flags a conversation. A flagged conversation may be kept longer, reviewed by authorized staff, or retained to meet the provider's legal obligations
Current retention periods: Email privacy@frictionless.systems and we will tell you how long each provider currently keeps a copy
AI providers (support): When we use automated or artificial-intelligence tools to help answer a support inquiry, we send the inquiry and relevant support history to a provider.
Why it is sent: To help generate a reply
How it may be used: The provider may process the information only on our behalf and for tasks we direct it to perform
Training: Our agreements prohibit the provider from using the information to train its models
Retention: The provider may keep a copy for a limited period to monitor for abuse
Diagnostic providers: Crash, error, and performance reports go to the providers that run those tools for us, together with your support identifier, your IP address, and information about your device such as its model, operating system, and network type. They process this only on our behalf and for the tasks we direct them to perform, and a provider may keep a report for a period set by its own schedule rather than ours, unless we ask for it to be deleted sooner
Service providers: With companies that handle information on our behalf: hosting and storage, analytics and error reporting, email delivery, and customer support. We limit their access to what they need for their specific tasks and require them to keep it confidential and use it only for the work we direct. They may not sell your information or use it for their own advertising
App stores: Where you subscribe through an app store, that store takes your payment and keeps its own transaction records under its own policy, rather than on our behalf
Legal requirements: When required by law, court order, or to protect our rights and user's safety
Business transfers: In connection with a merger, acquisition, or sale of our business (with continued privacy protections)
Aggregated data: We may share anonymized, aggregated statistics that don't identify individuals
4. Data security, residency, and retention
We use safeguards designed to protect your information, including:
Encryption when information is transmitted and stored
Multi-factor authentication for systems that provide access to personal information
Access controls that limit personal information to people who need it for their work
Security reviews and monitoring
If you're located outside the United States, your information may be transferred to and processed in the U.S.
We retain your information only as long as necessary to provide our services, comply with legal obligations, or resolve disputes. Where a Sigma conversation or a support inquiry is sent to a provider, that provider may keep its own copy to monitor for abuse, on its schedule rather than ours: how long depends on the provider and on whether the provider's automated safety check has flagged it.
Our own systems may also check conversations and support inquiries for abuse and safety, and the scope screening described above leaves a record that a message fell outside scope. Where one of our checks flags something, we keep it while we look into it, and after that only where we need it to enforce the Terms of Service or where the law requires. Authorized staff may review it.
A Sigma conversation you send us as feedback is kept for up to 12 months so we can look into it.
Support correspondence is kept while it remains useful for helping you and for understanding which problems recur. You can ask us to delete it at any time.
5. Your privacy rights
5.1 Deleting Your Information
A single Sigma conversation: Delete it yourself in the app, from your conversation history
Support inquiries: Email us at ideal@frictionless.systems asking us to delete your prior emails to us. We will delete those and the request itself
Cancel any paid subscription before you delete your account. Where an app store takes your payment, the subscription is with that store rather than with us, so deleting your account does not stop it; see Subscriptions and Billing in the Terms of Service.
Deleting your account removes your Sigma conversations from our systems, including any you sent us as feedback, and the crash and error reports tied to your support identifier. It does not remove support correspondence, which you can ask us to delete separately as described above. Where one of our safety checks has flagged a conversation, we may keep that conversation while we look into it, even after you delete your account. If a provider retained a copy for abuse monitoring, that copy sits on their systems rather than ours and expires on their schedule, which we do not control.
5.2 Accessing and Correcting Your Information
Your profile and account information is yours to manage: you can view it and change it yourself in the app at any time.
For anything you cannot reach in the app, email privacy@frictionless.systems and we will:
Correct information that is wrong or incomplete
Tell you what personal information we hold about you and give you a copy of it
Stop processing your information, or restrict how we process it, where you object and our grounds do not override your rights
We will respond within 30 days. We may ask you to confirm your identity first, so that we do not disclose your information to someone else.
If you are in the European Economic Area or the United Kingdom, you also have a right to receive the information you gave us in a machine readable form. To exercise this right, you can copy any Sigma conversation out of the app yourself.
5.3 Withdrawing Consent
Where we rely on your consent, you can withdraw it at any time without affecting what we did before you withdrew it. Marketing emails carry an unsubscribe link, and the choices you have made in the app can be changed in the app. Deleting a Sigma conversation withdraws any feedback you sent on it, and deleting your account withdraws it for every conversation you have sent.
5.4 Complaints
If you think we have handled your information wrongly, please email privacy@frictionless.systems so that we can put it right. If you are in the European Economic Area or the United Kingdom, you also have the right to complain to your local data protection authority.
6. Information from children
You must be at least 16 years old to create an account or use our products and services. We do not intentionally target children under 16. We comply with all applicable laws designed to protect children’s information. If we learn that we have collected personal information from someone under 16, we will delete it.
7. General
7.1 Amendments To This Privacy Policy
We may occasionally update this Privacy Policy. If we make a material change, we will tell you through one or both of:
Email notification
In-product notifications
This policy describes how we handle information, and it applies whether or not you have an account. Where we need your consent for a particular use, we ask for it separately and you can withdraw it at any time.
7.2 Contact Us
If you would like to make suggestions or learn more about our privacy practices, email privacy@frictionless.systems or write to Frictionless Systems, LLC, P.O. Box 425126, Cambridge, MA 02142, United States.
7.3 Interpreting This Privacy Policy
Examples listed in this Privacy Policy are provided to assist your understanding of this Privacy Policy and are not intended as exhaustive lists. Section headings are provided for your convenience.
This Privacy Policy supplements and is incorporated into the Terms of Service.
This policy was last updated on September 1, 2026.
