How Larkling uses cookies and similar technologies.
UK GDPR-compliant. No advertising cookies, ever.
A cookie is a small text file that a website stores on your computer or mobile device when you visit it. Cookies are widely used to make websites work efficiently, remember your preferences, and provide information to the site owners about how people use their site.
Cookies can be "first-party" (set by the website you are visiting) or "third-party" (set by a different domain). They can be "session cookies" (deleted when you close your browser) or "persistent cookies" (remain until they expire or you delete them).
Larkling also uses local storage — a browser technology similar to cookies — to remember your preferences, including your cookie consent choice. This is stored under the key lk_cookie_consent.
Larkling uses a small number of cookies and similar technologies for two purposes only:
We do not use cookies for advertising, retargeting, social media tracking, or any third-party marketing purposes.
These cookies are strictly necessary for Larkling to function properly. They are always active and cannot be turned off because our service would not work without them. Under UK GDPR, we do not need your consent for these cookies as they are essential to the service you have requested.
| Cookie / Storage | Purpose | Duration | Type |
|---|---|---|---|
Supabase Auth tokenssb-*-auth-token |
Keeps you securely logged into your Larkling account. Managed by Supabase Auth, our authentication provider. These tokens are essential for session management and are stored in your browser's local storage. | Session (until you log out or token expires) | First-party / essential |
Cookie consent preferencelk_cookie_consent(localStorage) |
Remembers your cookie consent choice (whether you accepted or rejected analytics cookies). This prevents the cookie banner from appearing on every visit and expires after 6 months, at which point we'll ask again. | 6 months | First-party / essential |
| Theme / display preference (localStorage) |
Remembers your preference for dark mode or light mode, and other display settings. | Persistent | First-party / essential |
Cloudflare security__cf_bm |
Used by Cloudflare, our content delivery and security provider, to distinguish between humans and bots. This is necessary for protecting our service against malicious attacks. | 30 minutes | First-party / essential |
With your explicit consent (via the "Accept all" button on our cookie banner), we use analytics services to understand how people use Larkling. This helps us identify which features families find most useful, where people get stuck, and how we can improve. These cookies are only set if you opt in.
Google Analytics 4 helps us understand how visitors use our website — which pages they visit, how long they spend, and how they found us. We have configured GA4 with the strongest privacy protections available:
anonymize_ip: true) — your full IP address is never stored.| Cookie | Purpose | Duration | Provider |
|---|---|---|---|
_ga |
Distinguishes unique visitors for analytics. | 2 years | Google (first-party via GA4) |
_ga_* |
Maintains session state for analytics. | 2 years | Google (first-party via GA4) |
PostHog is a product analytics platform that helps us understand feature usage within the Larkling app. We use PostHog instead of more invasive alternatives because:
eu.i.posthog.com), keeping your data under GDPR-equivalent protections.| Cookie / Storage | Purpose | Duration | Provider |
|---|---|---|---|
ph_*_posthog |
Session recording and feature usage analytics. | 1 year | PostHog (EU-hosted) |
To be absolutely clear, Larkling does not use any of the following:
Larkling is a co-parenting tool, not an advertising platform. Our business model is simple: core features are free forever, and families who want premium features pay £6.99/month. We have no incentive to monetise your data.
You have full control over the cookies set by Larkling. Here's how to manage them:
When you first visit Larkling, you'll see our cookie banner at the bottom of the page with two clear choices:
Your choice is remembered for 6 months. After that, we'll ask again to make sure you're still happy.
To change your mind at any time, click "Manage cookies" in the footer of any page on Larkling. This will re-open the cookie banner so you can update your preference.
All modern browsers let you control cookies through their settings. You can delete cookies already on your device, block cookies from specific sites, or block all cookies. Here are instructions for the most common browsers:
Please note that blocking essential cookies may prevent Larkling from functioning correctly — for example, you may be unable to stay logged in.
Larkling's use of cookies and similar technologies complies with the UK General Data Protection Regulation (UK GDPR), the Data Protection Act 2018, and the Privacy and Electronic Communications Regulations (PECR).
Under UK GDPR, you have the right to:
For full details of your rights and how we handle your personal data, see our Privacy Policy.
The UK's independent data protection authority is the Information Commissioner's Office (ICO). You can contact the ICO at:
We may update this Cookie Policy from time to time to reflect changes in our practices, the cookies we use, or our legal obligations. When we make material changes, we will:
We encourage you to review this policy periodically to stay informed about how we use cookies.
If you have any questions about this Cookie Policy, how Larkling uses cookies, or your privacy choices, please contact us:
🐦 Larkling — Co-parenting for every family. Your privacy is built in, not bolted on.
We use a small number of cookies to keep you logged in and to understand which pages help families. Login cookies are always on — analytics cookies are only on if you say yes. See our cookie policy.