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Use Deferendum on any device

Deferendum is now a mobile-first web app and installable Progressive Web App (PWA). No App Store or Google Play download is required.

Open Deferendum

Install on iPhone or iPad

Open app.deferendum.com in Safari, tap Share, then choose Add to Home Screen. The installed PWA opens from its own icon.

Install on Android

Open app.deferendum.com in Chrome and choose Install app or Add to Home screen. The exact wording may vary by browser version.

Use on desktop

Open app.deferendum.com in a modern browser. Compatible browsers can also install the PWA for quicker access.

Separate native iOS and Android apps are not part of the current release.

Privacy Overview

This website uses cookies to improve your experience while you navigate through the website. Out of these, the cookies that are categorized as necessary are stored on your browser as they are essential for the working of basic functionalities of the website. We also use third-party cookies that help us analyze and understand how you use this website. These cookies will be stored in your browser only with your consent. You also have the option to opt-out of these cookies. But opting out of some of these cookies may affect your browsing experience.

Necessary

Always Enabled

Necessary cookies are absolutely essential for the website to function properly. These cookies ensure basic functionalities and security features of the website, anonymously.

Cookie	Duration	Description
cookielawinfo-checkbox-advertisement	1 year	Set by the GDPR Cookie Consent plugin, this cookie records the user consent for the cookies in the "Advertisement" category.
cookielawinfo-checkbox-analytics	11 months	This cookie is set by GDPR Cookie Consent plugin. The cookie is used to store the user consent for the cookies in the category "Analytics".
cookielawinfo-checkbox-functional	11 months	The cookie is set by GDPR cookie consent to record the user consent for the cookies in the category "Functional".
cookielawinfo-checkbox-necessary	11 months	This cookie is set by GDPR Cookie Consent plugin. The cookies is used to store the user consent for the cookies in the category "Necessary".
cookielawinfo-checkbox-others	11 months	This cookie is set by GDPR Cookie Consent plugin. The cookie is used to store the user consent for the cookies in the category "Other.
cookielawinfo-checkbox-performance	11 months	This cookie is set by GDPR Cookie Consent plugin. The cookie is used to store the user consent for the cookies in the category "Performance".
CookieLawInfoConsent	1 year	CookieYes sets this cookie to record the default button state of the corresponding category and the status of CCPA. It works only in coordination with the primary cookie.
PHPSESSID	session	This cookie is native to PHP applications. The cookie stores and identifies a user's unique session ID to manage user sessions on the website. The cookie is a session cookie and will be deleted when all the browser windows are closed.
viewed_cookie_policy	11 months	The cookie is set by the GDPR Cookie Consent plugin and is used to store whether or not user has consented to the use of cookies. It does not store any personal data.

Functional

Functional cookies help to perform certain functionalities like sharing the content of the website on social media platforms, collect feedbacks, and other third-party features.

Cookie	Duration	Description
_vis_opt_s	3 months 8 days	Visual Website Optimizer sets this cookie to detect if there are new to or returning to a particular test.
_vis_opt_test_cookie	session	Visual Website Optimizer creates this cookie to determine whether or not cookies are enabled on the user's browser.

Performance

Performance cookies are used to understand and analyze the key performance indexes of the website which helps in delivering a better user experience for the visitors.

Cookie	Duration	Description
_vwo_ds	3 months	This cookie stores persistent user-level data for VWO Insights.
_vwo_sn	1 hour	This cookie stores session-level information.
_vwo_uuid	1 year 1 month 4 days	Visual Website Optimizer sets this cookie to generate a unique id for every visitor and for its report segmentation feature. The cookie also allows to view data in a more refined manner.

Analytics

Analytical cookies are used to understand how visitors interact with the website. These cookies help provide information on metrics the number of visitors, bounce rate, traffic source, etc.

Cookie	Duration	Description
_fbp	3 months	Facebook sets this cookie to display advertisements when either on Facebook or on a digital platform powered by Facebook advertising after visiting the website.
_ga	1 year 1 month 4 days	Google Analytics sets this cookie to calculate visitor, session and campaign data and track site usage for the site's analytics report. The cookie stores information anonymously and assigns a randomly generated number to recognise unique visitors.
_ga_*	1 year 1 month 4 days	Google Analytics sets this cookie to store and count page views.
_vwo_uuid_v2	1 year	This cookie is set by Visual Website Optimiser and calculates unique traffic on a website.

Advertisement cookies are used to provide visitors with relevant ads and marketing campaigns. These cookies track visitors across websites and collect information to provide customized ads.

Cookie	Duration	Description
_ir	session	This is a Pinterest cookie that collects information on visitor behaviour on multiple websites. This information is used on the website, in order to optimize the relevance of advertisement.
fr	3 months	Facebook sets this cookie to show relevant advertisements by tracking user behaviour across the web, on sites with Facebook pixel or Facebook social plugin.

Others

Other uncategorized cookies are those that are being analyzed and have not been classified into a category as yet.

Cookie	Duration	Description
_vis_opt_exp_3_combi	3 months 8 days	Description is currently not available.
jetpack_post_subscribe_modal_dismissed	1 day	Description is currently not available.
wp_api	past	Description is currently not available.
wp_api_sec	past	Description is currently not available.