Privacy
Effective October 25, 2026 (waitlist section added the same day).
This site is run by Montgomery Appworks LLC, 9905 S Pennsylvania Ave Ste A, Oklahoma City, OK 73159.
What we collect
The calculator runs entirely in your browser. The dates and choices you enter are not sent to us, not stored, and not shared. We use no analytics, ads, cookies, or tracking pixels.
Our host (Cloudflare) may process standard technical data, such as IP address, to deliver and secure the site. We do not receive health information from it.
Waitlist
If you join the app waitlist, we store only four things: your email address, which waitlist you joined (IsoWindow), the date and time you joined, and that you ticked the consent box. We use them only to email you when the app is ready. We have not sent any email yet. We do not store your IP address with your signup, and we never sell or rent the list or share it with anyone except our host, Cloudflare.
Because joining could suggest an interest in isotretinoin, we treat your signup as consumer health data: we use it only for the purpose above, and the consent box is how you agree to that. Our separate Consumer Health Data Privacy Policy explains your rights under Washington's My Health My Data Act and similar state laws.
The list is stored in a database run by our host, Cloudflare. To stop abuse, the form limits how many requests one connection can send per minute; that short-lived counter is not stored with your signup. A hidden field catches spam bots.
To delete your signup, use the delete page (it removes your email from every Montgomery Appworks waitlist straight away), or email support@montgomeryappworks.com.
More about the waitlist. We don't store browser details or cookies with your signup either. Any email we send about IsoWindow will say it's from Montgomery Appworks LLC, include our postal address and have a working unsubscribe link, and we'll honor unsubscribes promptly. You must be 13 or older to join.
How long we keep it. Until you delete it, or until we decide not to build IsoWindow; then we delete the whole list. A deletion removes your email from our live database right away. Our host's automatic database recovery history keeps restore points for up to 30 days, so a copy can remain there for up to 30 days before it expires.
If you email us, we use your message only to reply and to tell you about the app if you ask. Please don't send medical details. We do not sell personal data.
Health data
See our Consumer Health Data Privacy Policy. Because we don't collect what you enter, we hold no consumer health data from the calculator. The waitlist holds only what is described above. If a future app collects any, this policy will be updated first, with notices required by laws such as Washington's My Health My Data Act and the FTC Health Breach Notification Rule.
Children
This site is not directed to children under 13, and we don't knowingly collect information from them. If you think a child under 13 joined the waitlist, email us and we'll delete it.