Editorial & Accuracy Policy

1) What our tools are (and are not)

• Educational and planning tools: Most calculators are designed for estimates, comparisons, and learning.
• Not professional advice: We do not provide tax, legal, medical, or financial advice.
• No hidden execution: Tools validate/convert/process locally in your browser whenever possible.

A “correct” result depends on context: tax laws change, fees vary by platform, and conversion tables can differ by brand or region. We aim to be transparent about what each tool includes and excludes.

2) Sourcing standards

When a tool depends on external reference values (for example tax brackets, standard deductions, or government thresholds), we prefer primary sources such as official government publications. Where that’s not practical, we use widely cited reference material and make the source explicit.

• Tax tools: brackets and allowances are tied to a specific year and labeled accordingly.
• Fee calculators: we document the fee model used (percentage + fixed fee, optional extras).
• Health calculators: we use standard formulas (e.g., BMI = weight / height²) and explain interpretation limits.
• Unit conversion: we use conventional definitions and show the conversion logic.

3) Updates and “last updated”

Some tools change rarely (Base64, UUIDs), while others must be updated periodically (tax calculators). When a tool uses time-sensitive data, we show the year and (where applicable) a data updated note.

If you believe a tool is out of date or incorrect, please report it using the Contact page with a link to the tool, your expected result, and the source you used.

4) How we handle assumptions

Every calculator must make assumptions. High-value tools make those assumptions visible. For example:

• Tax calculators: may exclude local taxes, credits, or special cases unless stated.
• Loan/mortgage calculators: may assume fixed rates and regular payments.
• Health tools: are screening aids and cannot diagnose health conditions.
• Shopping conversion tools: provide approximate mappings and cannot guarantee brand fit.

5) Privacy and data handling

Smart Web Apps is designed for client-side processing. We do not require accounts and we do not intentionally collect your tool inputs. Some tools may use localStorage to save preferences (for example theme). Advertising providers may use cookies for ad delivery. For details, read our Privacy Policy.

6) Advertising and transparency

The site is supported by ads to keep tools free. Ads do not affect calculator results. We aim to keep ads non-intrusive and we hide ad containers until an ad actually renders to avoid empty “dead space.”

7) Corrections policy

If we find an error in a formula, threshold, or explanation, we correct it as quickly as possible. When the change is significant (for example a tax year update), we update the content and, where practical, note the updated date on the page.