Chrome extensions: privacy policy

Publisher: José PEREZ (Comparados). Contact: contact@comparados.fr. Last updated: 7 November 2026.

Extensions covered

• Prisme
• ShortFade
• ShopProof
• Postulio
• TubeLens
• PaperSide
• NicheDoor
• ReplayFix

What these extensions do with your data

Free use requires no account. The publisher operates no server for these extensions, and they contain no analytics and no advertising. Unless you buy a paid plan (see below), the publisher collects nothing, stores nothing and receives nothing from you.

Each extension reads a page only for its own purpose, and what it keeps stays in your browser storage on your device:

• Prisme reads the page open in the active tab while its side panel is open, to compute its SEO, GEO and Local scores, and asks that same site for its public robots.txt and llms.txt files, from your browser. It keeps your language, the addresses of the pages you chose to audit today (to count the free daily audits), the history of audits you asked for (address, date, scores, failed checks), the last report you exported, the sites, brands and questions you follow in the ChatGPT tab with the answers you paste or receive and what was found in them, your reminder choice and the progress of its welcome screen. It never reads chatgpt.com. If you enter your own OpenAI API key, the key is kept in your browser storage and is sent only to api.openai.com, with the text of your questions, when you click to send them; OpenAI bills you directly and the request asks OpenAI not to store the response (store: false). Pages you analyze are not sent anywhere.
• ShortFade keeps its settings and your daily YouTube watch time, with your limit for each day, to show your streak and weekly recap.
• ShopProof (formerly StoreLens) reads the open store page and asks that same store for its public pages and product list. Stores you choose to track are saved in your browser only: address, name, dates, a compact catalog snapshot (product ID, title, lowest price, compare-at price, variants in stock), best-seller order, review counts, apps and theme seen, a journal of changes and a daily summary. It also saves your chosen goal, your own store if you mark it, the name you enter for reports and your notification choice. Auditing a store without tracking it saves nothing. Daily reading, when you allow it for a store, sends requests directly from your browser to that store, without your cookies. Removing a store deletes its data.
• Postulio keeps the job offers, notes and follow-up dates you save, and the days you used it, to show your streak.
• TubeLens reads the figures already present in the open YouTube page. It keeps data only for the videos you choose to follow: title, channel and view counts, to show views gained.
• PaperSide keeps your notes, highlights and review dates for the papers you annotate, and the dates you wrote notes, to show your streak.
• NicheDoor reads the Amazon page open when you click its icon and, if you ask, up to 10 product pages from the same Amazon store. It keeps data only for the niches you choose to follow: niche name, page address, dates, top 10 product identifiers, medians and verdict, to show what changed. It also keeps your chosen store. It never reads your Amazon account or orders.
• ReplayFix stores only on your device: your journeys (addresses without tokens, values of ordinary fields, labels and nearby text of elements), measured durations, daily statistics (replays, time saved, repairs), your chosen frequency, favorites and reminders. These values are not encrypted, so avoid recording on a shared computer. Fields recognized as passwords, cards, CVV, IBAN, one-time codes, keys or files are not recorded. CSV rows and values asked at replay stay in session memory. No screenshots. It runs on a site only after you grant access to that site, and only during a recording or a replay you started.

Apart from the payment described below and the OpenAI option of Prisme that you trigger yourself, this data is not sold, not shared and not sent to the publisher or to any third party. Removing an extension removes its stored data.

Paid plans

Prisme, ReplayFix and ShopProof offer a paid Pro plan: Prisme at $12 a month or $84 a year, ReplayFix and ShopProof at $9 a month, $59 a year or $99 once. The free plan keeps working without any account.

Payment is handled by ExtensionPay (extensionpay.com) and Stripe, under their own privacy policies. Using the free plan sends nothing to ExtensionPay. The first time you click a purchase button or the button for a purchase already made (“I’ve already paid”, “Restore my purchase”), the extension asks ExtensionPay for an anonymous key, even if you end up buying nothing, and from then on uses that key to check whether your plan is active. The key and the plan status (paid or not, payment date, plan) are kept in your browser storage, which Chrome may sync between your devices. A small script from ExtensionPay runs only on extensionpay.com pages, to tell the extension that a payment went through; it runs on no other site.

If you buy a plan, ExtensionPay and Stripe receive what the purchase requires, including your email address and payment details, which you enter on their pages and never in the extension. The publisher never sees your full card number and receives, through Stripe, what is needed to manage sales, refunds and accounting. Nothing you audit, record, track or keep in an extension is sent to them.

You can ask for a refund within 14 days of payment: https://www.comparados.fr/extensions-chrome-refund/

Confidentialité (français)

L’usage gratuit se fait sans compte, sans serveur de l’éditeur, sans mesure d’audience et sans publicité : l’éditeur ne collecte et ne reçoit alors aucune donnée. Ce que chaque extension conserve reste dans le navigateur, sur votre appareil, et disparaît quand vous la supprimez. Rien n’est vendu.

Prisme lit la page de l’onglet actif tant que son panneau latéral est ouvert, et demande au même site ses fichiers publics robots.txt et llms.txt, depuis votre navigateur. Elle ne lit jamais chatgpt.com. Si vous saisissez votre propre clé API OpenAI, elle reste dans le navigateur et n’est envoyée qu’à api.openai.com, avec le texte de vos questions, quand vous cliquez pour les envoyer ; OpenAI vous facture directement et la demande lui indique de ne pas conserver la réponse. Les pages analysées ne sont envoyées nulle part.

Prisme, ReplayFix et ShopProof proposent un plan Pro payant : Prisme à 12 $ par mois ou 84 $ par an, ReplayFix et ShopProof à 9 $ par mois, 59 $ par an ou 99 $ en une fois. Le plan gratuit continue de fonctionner sans compte.

Le paiement passe par ExtensionPay et Stripe, selon leurs propres règles de confidentialité. Rien n’est envoyé à ExtensionPay tant que vous restez en gratuit sans cliquer sur un bouton d’achat. Au premier clic sur un bouton d’achat ou sur le bouton d’un achat déjà fait (« J’ai déjà payé », « Restaurer mon achat »), l’extension demande à ExtensionPay une clé anonyme, même sans achat final, puis s’en sert pour vérifier si votre plan est actif. La clé et l’état du plan (payé ou non, date, formule) restent dans le stockage du navigateur, que Chrome peut synchroniser entre vos appareils. Un petit script d’ExtensionPay ne s’exécute que sur les pages d’extensionpay.com, pour signaler un paiement à l’extension, et sur aucun autre site.

En cas d’achat, ExtensionPay et Stripe reçoivent ce qu’il exige, dont votre adresse e-mail et vos données de paiement, saisies sur leurs pages et jamais dans l’extension. L’éditeur ne voit jamais votre numéro de carte complet et reçoit par Stripe ce qui sert à gérer les ventes, les remboursements et la comptabilité. Rien de ce que vous auditez, enregistrez ou suivez dans une extension ne leur est transmis.

Remboursement sur demande dans les 14 jours suivant le paiement : https://www.comparados.fr/extensions-chrome-refund/