Legal

Cookie and Browser Storage Policy

The cookies and browser storage OyaLinkup and Daily Cashbook use, why we use them, and how you can control them.

Last updated 19 October 2026OYALINKUP LIMITED

In short

A summary to help you find your way. The full policy below is what applies.

  • The oyalinkup.com website stores no cookies or browser storage, and counts page views without cookies.Why we use these technologies
  • One necessary cookie, cashbook_auth, keeps protected app pages working after you sign in.What we currently store
  • Daily Cashbook keeps an offline copy of your records in browser storage so supported actions work without internet.Cookies and similar technologies
  • Clearing site data can sign you out and remove records that have not synchronised yet.Your controls

1. About This Policy

This policy explains the cookies and browser storage that Daily Cashbook uses, and confirms that the oyalinkup.com website does not store cookies or browser storage on your device. OYALINKUP LIMITED (“OyaLinkup”, “we”, “our”, or “us”) operates both services.

Read this policy with our Privacy Policy, which explains how we collect, use, disclose, and retain personal data.

2. Cookies and Similar Technologies

A cookie is a small text value stored by your browser and sent with relevant website requests. Local storage keeps information in your browser until it is removed, while session storage normally lasts only for the current browser tab or session.

Daily Cashbook also stores an offline copy of records and app state in local storage so that supported actions can continue without an internet connection and synchronise later.

3. What We Currently Store

3.1 Strictly Necessary Cookie

NamePurposeDuration
cashbook_authIndicates that a Daily Cashbook user has signed in so protected app routes can be handled correctly. It does not contain the access token or business records.Up to 30 days, or until sign-out

3.2 Local Storage

Daily Cashbook uses first-party local storage for functions requested by the user:

  • Authentication: access and refresh tokens used to keep you signed in and communicate with the service.
  • App security: the locally hashed app PIN and a device identifier.
  • Offline records: locally cached sales, expenses, settlements, categories, and synchronisation state.
  • Preferences: app settings and whether optional prompts have been shown or dismissed.

The oyalinkup.com website does not use local storage.

3.3 Session Storage

Daily Cashbook uses session storage for temporary app state, including sign-in or registration handoff information, one-time interface state, and preventing repeated actions during the same browser session. This information is normally removed when the tab or browser session ends.

4. Why We Use These Technologies

  • authenticate users and protect restricted app pages;
  • keep Daily Cashbook working offline where supported;
  • synchronise records after connectivity returns;
  • apply app security controls such as the local PIN;
  • preserve settings and temporary navigation state; and
  • maintain the reliability and security of the service.

We do not set advertising or analytics cookies on oyalinkup.com or in Daily Cashbook. The website counts page views with Vercel Web Analytics, which works without cookies or browser storage and does not identify individual visitors. See our Privacy Policy for details.

5. Third-Party Services

When you choose to use an external service, that provider may use cookies or browser storage on its own website or checkout page. The live services that may be opened or used include:

  • Google: when you choose Google as a sign-in method.
  • Paystack: when you open checkout to pay for a Daily Cashbook subscription.
  • WhatsApp: when you follow a support or community link.
  • Cloudflare Turnstile: when you use the website contact form, Cloudflare checks your browser to block automated spam. It uses your IP address and browser details only for this check.

These providers control their own technologies and process information under their own terms and privacy policies.

6. Your Controls

Most browsers let you inspect, block, and delete cookies, local storage, and site data. You can also clear Daily Cashbook's stored app data through your browser or device settings.

Blocking or deleting necessary storage may sign you out, reset your PIN or preferences, interrupt synchronisation, and remove offline records that have not reached our servers. Before clearing site data, check that important records have synchronised and export any records you need.

7. Legal Basis

We use necessary cookies and browser storage to provide the service you request, maintain account security, and support our legitimate interest in operating a reliable service. We do not currently use any cookies or similar technologies that require your consent. If we introduce non-essential analytics, advertising, or similar technologies, we will ask for your choice before using them.

8. Changes to This Policy

We may update this policy when our services or storage technologies change. We will update the date above and provide reasonable notice where a change materially affects your choices or privacy.

9. Contact Us

Questions or privacy requests can be sent to:

Questions about this policy?

Ask the people who handle it.