Privacy Policy

Last updated: September 17th, 2017

Cesium ion is owned and operated by Analytical Graphics Inc., “AGI”. We are located at 220 Valley Creek Blvd, Exton, PA 19341.

Why are you reading this?

Thanks for visiting Your privacy is very important to us and we are committed to protecting it. This Privacy Policy informs you of how we collect, use, and disseminate your information.

1. What information we collect and why

Personally identifiable information

We do not collect any more personal information than is reasonably necessary to enable your participation in the activities we offer or to comply with US Government requirements.

  • Visitors without an account: no personal information is collected.
  • Free version users: the only personal information that we collect or store is the information that you provide when creating your free account, such as your email address and password.
  • Paid users: the only personal information that we collect or store is the information that you provide when creating your paid account, such as your name, mailing address, email address, password, the name of your organization and billing information.
  • If you contact AGI via email or phone, we collect your name and email address.

Note that your personal information may be retained in residual back-up files that are a function of our network’s back-up systems.

Anonymous Information

We collect the IP addresses of devices that access Anonymous information collected may be analyzed in the aggregate to determine collective user characteristics, to understand user traffic patterns, sales information and user behavior on We also analyze traffic on through the use of services like Google Analytics, which is subject to Google’s Privacy Policy. By using, you represent that you have reviewed and agreed to those terms as well. AGI reserves the right to change the analytical service provider any time without notice.

We also use technologies such as cookies and localStorage to store an access token on your browser, which enables us to recognize you and your preferences the next time you log in. This is specifically to enhance your experience and improve our site, products and services.

2. How we use the Information

In addition to creating an account tailored to you, your personal information may be used to operate and maintain our service, as well as to monitor and protect the security and integrity of our service. When you contact us, we may keep a record of your communication to help solve any issues. We may use the email address you provide us to notify you of improvements, changes and new features. You can opt-out of receiving these materials by following the steps contained in the correspondence you would receive from AGI .

We use anonymous information for system administration, auditing the use of, and statistical marketing purposes.

3. How we share the Information

We may share your personal information on the basis of a contract with companies, contractors and agents that help us run our business. We require that these parties agree to use reasonable safeguards to protect your personal information. These partners are not permitted to use the personal information they receive from us for their own purposes.

We may share your personal information if we determine that it may be needed or requested to satisfy any applicable governmental law, regulation, investigation by public authorities, or proceeding. Should we receive a request from law enforcement, we will notify you unless prohibited by law.

We may also share your personal information if we have a good faith belief that the disclosure is necessary to prevent or respond to fraud, defend against attacks, or protect the rights, property and safety of AGI, our customers, users and the public.

If or AGI becomes involved in a merger, acquisition, reorganization or any form of sale or transfer of some or all of its assets, we may share your personal information with the acquiring party and will ensure that they agree to provide you notice before a different privacy policy is instated. may contain links to independent websites, products or services, which will be governed by their privacy practices. Once you have left our site, it is up to you to take the necessary measures to protect your privacy by reviewing the third parties’ Privacy Policy.

4. Security and Data Integrity

We take appropriate measures to protect your information from loss, misuse, unauthorized access, alteration, disclosure or destruction. In particular:

  • We support encrypted communications through TLS.
  • We regularly review our information collection, storage and processing practices, including physical security measures, to guard against unauthorized access to systems.
  • We actively monitor network activity where possible.

While we try to prevent unauthorized third-party access to personally identifiable information, we cannot completely ensure or warrant the security of the information you transmit, and you agree that you do so at your own risk.

5. Payment Information

No payment instrument numbers will be stored within our systems. We use a reputable PCI-certified third party payment provider to process your payments. Your sensitive information is encrypted and transmitted securely via HTTPS.

6. Children Under 13 does not knowingly collect personal information from children under the age of 13. If it comes to our attention that you are under 13, we will immediately terminate your account and delete all data you have shared with us.

7. Access to Your Information

Contact to access information that is collected about you. If you believe any of the information needs updating, correcting, amending or deleting, please advise us. We will correct our records upon verification of the requested change. We may decline to process requests that are frivolous, jeopardize the privacy of others, or are extremely impractical.

8. Changes

We may update this Privacy Policy from time to time, and such updates will be posted on this page. If the updates significantly reduce your rights, we will provide a more prominent notice and an opportunity to consent.

By using this website, you consent to the terms of this Privacy Policy and to AGI’s use of personal information.

10. EU-US Privacy Shield

In addition to our Privacy Policy above, AGI complies with the EU-U.S. Privacy Shield Framework as set forth by the U.S. Department of Commerce regarding the collection, use, and retention of personal information transferred from the European Union to the United States. AGI hereby declares to the Department of Commerce that it is committed to comply with the Privacy Shield Principles and handle all personal information received from the EU accordingly. Under certain circumstances, AGI may remain responsible for any of your personal information that is shared under the Onward Transfer Principle with third parties for external processing on our behalf. If there is any conflict between the terms in this privacy policy and the Privacy Shield Principles, the Privacy Shield Principles shall govern.

You have the right to limit the use or disclosure of your personal information by writing to us by mail or email, at the addresses provided below, and requesting the limitation or disclosure of your personal information. In accordance with the Data Integrity and Purpose Limitation Principle of the EU-U.S. Privacy Shield, AGI will take reasonable steps to ensure that personal information is relevant to its intended use, accurate, complete, and current.

AGI is also subject to the investigatory and enforcement powers of the US Federal Trade Commission (FTC). If you are unable to resolve the matter directly with AGI, after a good faith effort to address it, you may refer a complaint to JAMS , at no cost to you, and we will work with them to resolve your concern. In cases where your complaint has still not been resolved by other means, the Privacy Shield Framework provides the right to invoke binding arbitration as a last resort, as described in Annex I to the Privacy Shield Principles .

If your information is shared onwards on the basis of a contract, that contract will provide the same level of protection as the one guaranteed by the Principles.

AGI complies with the Recourse, Enforcement and Liability Principle through a self-assessment system which includes internal procedures for training our employees about AGI’s privacy policies, disciplining misconduct and reviewing our compliance periodically.

AGI is required to disclose personal information in response to lawful requests by public authorities, including to meet national security, law enforcement, or other public interest requirements.

To learn more about the Privacy Shield program, and to view AGI’s certification, please visit . If you have an inquiry regarding our privacy practices in relation to our Privacy Shield certification, we encourage you to contact us at

11. Other International Users is hosted in the United States. If you are an international visitor, you should note that by providing your personal information, you are: (i) permitting the transfer of your personal information to the United States, which may not have the same data protection laws as the country in which you reside; and (ii) permitting the use of your personal information in accordance with this Privacy Policy.

12. California Users

While at this time we do not share any of your personal information with third parties for their direct marketing purposes, if we ever do, we will let you know. If you are a California resident, who has an established business relationship with us, California law allows you to request information regarding the disclosure of your personal information by AGI to third parties for the third parties’ direct marketing purposes. If you wish to do so, you may contact us at the address provided below.

13. Contact Information

If you have any questions or concerns regarding AGI’s Privacy Policy, or complaints about non-compliance with the EU Privacy Shield, (note: Privacy Shield organizations must respond within 45 days of receiving a complaint) contact us at:

Analytical Graphics, Inc.

220 Valley Creek Blvd.
Exton, PA 19341