Cookie Policy
Idea Simulator stores a small amount of information in your browser to keep you signed in and make its features work. With your permission it also remembers a few preferences. We don't use advertising or analytics cookies, and we don't track you across other sites.
Last updated: 2 November 2026
Cookies and browser storage
Cookies are small text files a site saves in your browser. Local storage and session storage do the same job without being sent to our servers on every request. This policy covers all three, and the same choices apply to each.
Strictly necessary
Needed for the site to work and for features you ask for, so they don't require consent. You can still clear them in your browser, but you will be signed out and unsaved work may be lost.
| Name | Type | Purpose | Kept for |
|---|---|---|---|
is_consent | Cookie | Records your cookie choices so we don’t ask on every visit. | 6 months |
auth_token | Local storage | Keeps you signed in to your workspace. | Until you sign out |
idea_refiner_session | Session storage | Keeps your Idea Refiner conversation while the tab is open. | Until the tab closes |
ai_generated_canvas, ai_generated_variables | Local storage | Hands a Lean Canvas and variables from the Idea Refiner to the new-idea wizard. | Until the wizard uses them |
sim-runs-<idea> | Local storage | Up to five simulation runs you choose to save for comparison. | Until replaced by newer runs |
Preferences
Only stored if you allow preferences. If you don't, the site still works and these settings reset when you leave the page. Withdrawing consent deletes them.
| Name | Type | Purpose | Kept for |
|---|---|---|---|
theme-preference | Local storage | Remembers light or dark mode. | Until changed or withdrawn |
sim-config-<idea> | Local storage | Remembers simulation settings such as runs, months and thresholds for each idea. | Until changed or withdrawn |
sim-models-<idea> | Local storage | Remembers which models you selected on the variables page. | Until changed or withdrawn |
Third parties
We don't place third-party cookies, and our fonts and scripts are served from our own domain. The one exception is payments: when you upgrade, checkout happens on our payment provider's own site, which sets its own cookies under its own policy. Nothing from it is stored on Idea Simulator.
Changing your choices
You can change or withdraw consent at any time. Your browser settings also let you block or delete cookies and site data; blocking strictly necessary storage will stop sign-in from working.
Updates
If we add a new kind of cookie, such as analytics, we will update this page and ask for your consent before using it. See our Privacy Policy for how we handle personal data more broadly.