Last updated: 11 September 2026
Gizmo is run by Save All Ltd. When you use our website we store small pieces of information on your device and read them back later. This page explains what we store, why, how long it stays, and how you can say no.
This page covers our website. Our mobile app works differently and we are working on a version of this page that covers it too.
Our Privacy Notice explains everything else we do with your information.
Save All Ltd, Company No. 13489213, Techspace Scrutton Street, 32-38 Scrutton Street, London EC2A 4RQ. Questions: support@gizmo.ai, or our Data Protection Officer at dpo@gizmo.ai
A cookie is a small file a website puts on your device and reads when you come back. It is how we remember you are signed in.
We store things in two other ways as well. Local storage works like a cookie but holds more, and it does not run out on its own, so it stays until you clear it. Tags are small pieces of code that send information about what you are doing back to us or to another company, sometimes without storing anything at all.
On this page, "cookies" means all three.
Some are set by us. Others are set by other companies whose code runs on our site. That difference matters, because those companies can often recognise your device on other websites too, not just ours.
These make Gizmo work. Without them you cannot sign in. We use them without asking, because there is no version of Gizmo that works without them. You can still block them in your browser, but then you will not be able to sign in.
| Name | Set by | What it does | How long it lasts |
|---|---|---|---|
| gizmo_jwt | Gizmo | Keeps you signed in | 2 hours |
| gizmo_loggedin | Gizmo | Remembers you are signed in, so we send you to the right page | 1 year |
| gizmo.auth.token.production | Gizmo | Keeps you signed in | Until you clear it |
| gizmo_oauth_broker | Gizmo | Keeps the sign-in process secure while it is happening | About 10 minutes |
| gizmo_cookie_consent | Gizmo | Remembers the cookie choice you made, so we stop asking | 1 year |
| gizmo.auth.last-login-method | Gizmo | Remembers how you signed in last time | Until you clear it |
| gizmo.onboarded-state | Gizmo | Remembers you have finished setting up | Until you clear it |
| gizmo.user-ws.snapshot, keyval-store | Gizmo | Saves a copy of your study material so it loads quickly | Until you clear it |
| gizmo.user-country | Gizmo | Remembers which country you are in, so we show you the right prices and content | Until you clear it |
| firebaseLocalStorageDb | Google Firebase | Keeps your sign-in working | Until you clear it |
| __Host-GAPS, OTZ | Only if you sign in with Google. Runs the Google sign-in. | 1 to 13 months |
If you sign in with Google, Google also sets __Secure-ENID, which Google uses for its own settings and personalisation. That one is Google's rather than ours. You can manage it in your Google account settings.
These show us how Gizmo is used, so we can fix what is broken and make it better. These need your permission.
| Name | Set by | What it does | How long it lasts |
|---|---|---|---|
| gizmo.pseudo-device-id | Gizmo | Gives your device a random ID so we can tell repeat visits apart. It is not your name, but it does stay with your device. | Until you clear it |
| gizmo.first-install-timestamp, gizmo.last-session-started-timestamp | Gizmo | Records when you first used Gizmo, and when this visit started | Until you clear it |
| gizmo.social-tab-experiment | Gizmo | Records which version of a feature you were shown, when we are testing two versions against each other | Until you clear it |
| PostHog | PostHog | Records what you click and which features you use, and works out which features are switched on for you | Set by PostHog |
| Coeus | Gizmo | Our own version of the same thing, counting what happens on the site | Set by us |
| LogRocket | LogRocket | Records a replay of your visit, so when something breaks we can watch back what went wrong. Anything you type into a password box is hidden and never recorded. | Up to 1 month, or up to 12 months if the session is flagged for review |
| Cloudflare Insights | Cloudflare | Measures how quickly pages load for you | Set by Cloudflare |
| Sentry | Sentry | Reports crashes and errors so we can fix them | Set by Sentry |
These let us show you Gizmo adverts on other platforms, and see whether those adverts worked. The companies that set them can recognise you on their own services and elsewhere. These need your permission.
| Name | Set by | What it does | How long it lasts |
|---|---|---|---|
| Meta Pixel | Meta | Records that you visited Gizmo, or signed up, after seeing one of our adverts. Meta uses this to measure our adverts and to decide who to show them to. Meta may connect it to your Meta account and use it for its own purposes. We only get totals, not information about you individually. | Set by Meta |
| TikTok Pixel | TikTok | Records page views, clicks, your IP address and information about your browser after you interact with one of our TikTok adverts. TikTok may connect this to your TikTok account and use it under its own privacy policy. We only get totals. | Up to 13 months |
We also use Meta's Conversions API, which sends Meta the same kind of information from our own servers instead of from your browser. We only use it when you have said yes to advertising cookies. The other Meta tools we use are Website Custom Audiences, Customer List Custom Audiences and Instagram Engagement Audiences.
Turning these off at the source. In Meta, use your Ad Settings, and Off-Meta Activity to clear what businesses have sent them about you. In TikTok, go to Settings, then Ads. You can also use Your Online Choices to opt out of this kind of advertising across many companies at once.
| UK and Europe | United States | Everywhere else | |
|---|---|---|---|
| Cookies we need | We do not ask. You cannot turn these off. | Same | Same |
| Cookies that help us improve Gizmo | Only with your permission | We use them unless you tell us to stop | We use them |
| Cookies for advertising | Only with your permission | We use them unless you tell us to stop | We use them |
On our site. Use Cookie Settings at the bottom of any page. You can change your answer whenever you like, and saying no later is just as easy as saying yes. We stop from that moment. It does not undo what happened before, and it does not remove anything another company has already put on your device.
In your browser. Chrome, Safari, Firefox and Edge all let you block or delete cookies. Blocking all of them will stop you signing in.
On your phone. On iOS, go to Settings, then Privacy and Security, then Tracking. On Android, go to Settings, then Privacy, then Ads.
The companies named below are the only ones allowed to run code on our site. Each has its own privacy policy, and once your information reaches them we do not control what they do with it.
PostHog · LogRocket · Cloudflare · Sentry · Google · Meta · TikTok
The advertising platforms we work with are currently Meta and TikTok.
Meta. For the part of this that involves collecting information through Meta's tools and sending it to Meta, we and Meta are joint controllers, which means we are both responsible. We have agreed that we tell you about the arrangement and Meta answers you if you use your data protection rights against Meta. The Meta company involved is Meta Platforms, Inc. in the USA if you are in the UK, or Meta Platforms Ireland Limited in Dublin if you are in the EEA.
Some are based outside the UK and Europe, mostly in the United States. Our Privacy Notice explains how we protect your information when it travels.
If we change this page we will update the date at the top. If we add a new company to the list, we will ask you again before it starts.
Email support@gizmo.ai or dpo@gizmo.ai. You can also complain to a regulator. In the UK that is the Information Commissioner's Office. In Europe it is the data protection authority where you live.