Privacy policy
Last updated: October 5, 2026
No account is needed. Calculator inputs stay in your browser.
Operator and scope
This policy describes DCAMaster.com. DCAMaster manages this website and messages received through its contact channel. Contact DCAMaster or exercise privacy rights through Contact us. External providers have their own policies.
Calculator inputs
Amounts, start and end months and simulation results are processed in your browser. Calculator code does not send them to a database, create user accounts or portfolio histories, or install advertising trackers. Loading price data requests public files from the website hosting provider.
Local theme preference
Your browser stores your choice of Dark or Light Mode for your next visit. It contains no portfolio data or user tracking identifier. Clear website data in your browser to remove it. Blocking browser storage may prevent theme persistence but does not prevent calculations.
Provider technical data
Hosting and CDN providers may process IP addresses, device information, request times and access requests to deliver pages, secure and operate their services and provide aggregate traffic statistics, depending on configuration and their policies. If Cloudflare Web Analytics is enabled, page-view and loading-performance data may be sent to Cloudflare. Calculator code does not include your contribution amounts or results in those analytics events. For Cloudflare hosting, see the Cloudflare Privacy Policy.
Google Form contact
Contact us embeds Google Forms. Loading the form connects your browser to Google, which may process technical data, cookies and account information according to your settings and form configuration. Submitting a message sends the operator your answers and any contact details you provide. Contact is optional and is not required to use the calculator. Review the Google Privacy Policy before use.
Purposes, recipients and retention
The operator uses contact information as necessary to handle inquiries, respond, resolve issues and act on requests. Messages are not sold or used for marketing. Access may be provided to the operator and relevant service providers, or disclosure made where legally required. Appropriate legal grounds include legitimate interests in responding, consent where required, or legal duties. Messages are retained only as necessary for the inquiry and legal duties, then deleted or de-identified. Retention within Google and other provider systems depends on their policies and configuration.
Rights and international processing
External providers may process data outside Thailand under their policies and safeguards. Where applicable, you may request access, correction, deletion, restriction, objection or portability, and withdraw consent for processing based on consent without affecting prior processing. You may complain to a competent supervisory authority. The operator may need proportionate identity verification and must consider legal exceptions. Send requests through Contact us without unnecessary sensitive data.
Advertising and changes
The website displays a locally hosted image advertisement. The banner itself does not install advertising trackers. Hosting providers may process traffic statistics depending on the website settings. Displaying the image does not send data to the advertiser. Before introducing external advertising services, this policy will be updated to identify providers and relevant data practices, with choices or consent where legally required. Read this policy with the Terms & disclaimer.