Legal document
What usagemeter.app stores in your browser, why and for how long — and how to change your mind in one click.
In force since September 24, 2026
このページは英語、フランス語、ドイツ語でご覧いただけます。
We always set the cookies the site needs: session, language, your choices and, if you open a friend's link, their invitation offer. Everything else — ad measurement, personalised advertising, the partner programme, ads on our articles — only with your consent, which you can withdraw at any time, as easily as you gave it. Refusing changes nothing about how the site works.
What this browser has recorded. To exercise your rights over a choice, quote its identifier.
For each: what it does, its legal basis and how long it lasts.
Sign-in, language, remembering your choices, security, a friend's invite offer, displayed currency, and the support chat once you open it. The site cannot work without them.
Learn which ad or link brought you and what followed (a click on “Add”, install, sign-up, subscription). UsageMeter cookie um_attr (90 days) and, for the partners you leave on, these events sent to Meta and Google — including your email address, hashed before sending, when you give it to us (sign-up, sign-in, sending the link), which they can match with your account on their side — to measure and optimise our ads.
Let Meta and Google show you our ads because you visited UsageMeter (retargeting), and find people with a similar profile. Requires “Ad measurement”.
Meta is only loaded with both “Ad measurement” and “Personalised advertising”: it does not separate measurement from personalisation. Google Ads uses this purpose for retargeting only.
If you arrive through a partner's link (creator, blog…), we remember their code for 60 days (um_via cookie) so they earn a commission if you subscribe. They only see a masked address (e.g. ma***@gmail.com) and the amounts paid.
In Google's message (Europe), the partner programme follows your answer to the purposes “Store and/or access information on a device” and “Measure advertising performance” for our own use: Google's message knows no affiliation purpose.
Google may show ads on our articles and guides (Google AdSense) and use cookies to choose them, possibly based on your interests, and to measure them.
Only on our articles, guides, comparisons, tools and reference pages — never on the home page, pricing, download, your account or checkout.
In the European Economic Area, the UK and Switzerland, your choices are collected by Google's “Privacy & messaging” message, a consent platform certified by Google and integrated with the IAB TCF framework — required for sites that show Google AdSense ads. It covers Google's ads (AdSense and Google Ads), Meta (through Google's “additional consent”) and our own measurement: your answers to the purposes “Store and/or access information on a device” (1) and “Measure advertising performance” (7) for our own use count as “Ad measurement” and “Partner programme”. We copy the result into our um_consent cookie without keeping the consent string itself — only a fingerprint of it. Everywhere else, our own banner shows.
Everything usagemeter.app reads or writes in your browser, and what our partners store there when you accept it.
__Secure-better-auth.session_token · better-auth.session_token
Duration : 8 hours
Keeps you signed in after you log in.
Type : Cookie (not readable by scripts)Set by : UsageMeter
__Secure-better-auth.session_data · better-auth.session_data
Duration : 5 minutes
Short cache of your session, so it is not looked up on every page.
Type : Cookie (not readable by scripts)Set by : UsageMeter
NEXT_LOCALE
Duration : 1 year (or the session)
The site's language: set on a first visit without a language in the address, or when you switch.
Type : CookieSet by : UsageMeter
um_consent
Duration : 182 days
Your cookie choices (this banner), with their date and a random choice identifier.
Type : CookieSet by : UsageMeter
FCCDCF
Duration : 13 months
Your choices made in Google's consent message (Europe, UK, Switzerland).
Type : CookieSet by : Google (consent message) — EEA, UK and Switzerland only
FCNEC
Duration : 12 months
Technical state of Google's consent message (Europe, UK, Switzerland).
Type : CookieSet by : Google (consent message) — EEA, UK and Switzerland only
um_ref
Duration : 30 days
A friend's invitation offer, when you open their link: it still applies on the pricing page and at checkout. You can remove it from the pricing page.
Type : CookieSet by : UsageMeter
um-currency
Duration : Until you clear it
The currency shown on the pricing page.
Type : Local storageSet by : UsageMeter
um-pricing-cycle
Duration : The life of the tab
The billing period (month or year) shown on the pricing page.
Type : Tab storageSet by : UsageMeter
usagemeter_blog_read
Duration : Until you clear it
The articles you already opened, to drop their "New" badge (500 at most).
Type : Local storageSet by : UsageMeter
um-blog-tab-from
Duration : The life of the tab
The blog tabs' animation from one page to the next.
Type : Tab storageSet by : UsageMeter
um-activation-hidden · um-recap-dismissed:…
Duration : Until you clear it
In your account area: a panel you chose to hide.
Type : Local storageSet by : UsageMeter
um-checkout-auto · um-oauth-auto:… · um-growth-claimed · um_link_pairing
Duration : The life of the tab
A step in progress (checkout, sign-in, pairing the desktop app), so it is not started twice.
Type : Tab storageSet by : UsageMeter
ps:ps_K73R7SFjHA2cZJr3:…
Duration : Until you clear it
The support conversation, only once you open the chat: nothing is loaded before.
Type : Local storageSet by : Pilote Support (same publisher)
—
Duration : The life of the page
Live visitor counter: a random identifier kept in memory while the page is open. Nothing is stored in your browser.
Type : Memory, nothing storedSet by : UsageMeter
Meta's cookies also require “Personalised advertising”.
um_attr
Duration : 90 days
The ad or link that brought you (first and last touch), to measure our campaigns. Never extended.
Type : Cookie (not readable by scripts)Set by : UsageMeter
_fbp · _fbc
Duration : 90 days
Browser and ad-click identifiers for Meta, to measure and personalise Meta ads.
Type : CookieSet by : Meta
facebook.com, instagram.com
Duration : Set by Meta
Meta's cookies on its own domains, under its policy.
Type : Third-party cookiesSet by : Meta
_gcl_au · _gcl_aw · _gcl_gb · _gcl_ls
Duration : 90 days
Conversions of our Google Ads campaigns (_gcl_ls lives in local storage).
Type : CookieSet by : Google
IDE, test_cookie…
Duration : 13 months in the EEA, the UK and Switzerland
Google's cookies on doubleclick.net and google.com: ad measurement, retargeting and delivery.
Type : Third-party cookiesSet by : Google
um_via
Duration : 60 days
The partner (creator, blog…) who sent you, so they earn their commission if you subscribe. The last link wins.
Type : CookieSet by : UsageMeter
__gads · __gpi
Duration : 13 months
Choose and measure the Google AdSense ads shown on our articles and guides.
Type : CookieSet by : Google AdSense
__eoi
Duration : 6 months
Google AdSense security and ad-fraud prevention.
Type : CookieSet by : Google AdSense
Outside our domain: Stripe sets its own cookies on its checkout pages (checkout.stripe.com), under Stripe's policy.
Who receives what, and only with your consent. What was already sent to Meta or Google stays with them: you can also exercise your rights with them, through the links below.
Meta Platforms Ireland Ltd
Google Ireland Ltd — Google Ads
Google Ireland Ltd — Google AdSense
UsageMeter (PiloteCode)
Affiliate partners (creators, blogs)
Your choice — consent or refusal — is kept for 6 months, then we ask again. We also ask again if we add a purpose or a partner (a new version of the banner); after a refusal, we never ask sooner. If your browser sends the Global Privacy Control signal, we apply it as a refusal, without showing the banner; you can still accept through the “Cookies” link. In Google's message (Europe), Google decides when to ask again (13 months at most).
The “Cookies” link at the bottom of every page, the icon in the bottom-left corner or the button below reopen your choices; “Refuse all” withdraws everything in one click. We then delete the cookies concerned from our domain, nothing more is sent to Meta or Google under that choice, pending sends are cancelled, and the page reloads if an advertising script was loaded. The cookies Meta and Google set on their own domains are managed with them (the “Settings” links above). Withdrawal applies from then on.
Banner version 1, in force since September 24, 2026. Each choice is recorded with the fingerprint of the texts you saw and a random identifier, without IP address or account, and kept 5 years so it can be proved.
Fingerprints of the banner's texts, by language (SHA-256, first 16 characters):
A question: contact@usagemeter.app. You can also contact the CNIL (cnil.fr) or your country's data protection authority. UK visitors: these rules apply PECR and the UK GDPR.