Our Commitment to Accuracy
iCalcApp is committed to providing accurate, reliable, and clearly explained calculators and educational content. Every tool and article published on iCalcApp goes through a defined process of formula verification, content review, and usability testing before it is made available to users.
This editorial policy explains the standards we apply, the sources we use, how we handle errors, and how content is updated over time.
Formula Verification Process
Every calculator on iCalcApp is built using formulas drawn from authoritative, publicly recognised sources. Before a calculator is published, the formula is cross-referenced against at least two independent references to confirm accuracy. The sources we use include:
- Health calculators: World Health Organization (WHO), Centers for Disease Control and Prevention (CDC), National Institutes of Health (NIH), American Council on Exercise (ACE), peer-reviewed nutritional and medical journals
- Finance calculators: Reserve Bank of India (RBI), standard financial mathematics textbooks, established banking formula conventions, Investopedia formula references
- Tax calculators: Official government tax portals and current published rate schedules (CBDT for India income tax, official tax authority rate lists)
- Math calculators: Standard mathematical definitions and formulas verified against academic references
- Unit converters: International System of Units (SI) official conversion factors
After formula implementation, each calculator is tested with multiple known values to verify that outputs match expected results before publication.
Content Review Standards
Blog articles and calculator explanation pages on iCalcApp are written to educate users — not just provide a result. Every piece of content must meet the following standards before publication:
- The formula used is explicitly stated and explained in plain language
- At least one worked example is included showing the calculation step by step
- Limitations and assumptions of the formula are clearly disclosed
- Where professional advice is recommended (finance, health, legal), this is stated explicitly
- Sources and references are cited for health and finance claims
- Content is reviewed for factual accuracy before publication
Update and Correction Policy
iCalcApp content is treated as living documentation. When formulas, rates, or guidelines change — such as revised income tax slabs, updated WHO BMI classifications, or new sales tax/VAT rate schedules — affected calculators and articles are updated promptly.
When a user reports a calculation error or content inaccuracy by emailing hello@icalcapp.com, we investigate and respond within 48 hours. If the report is valid, the correction is made and the page is updated with the corrected information. We do not delete or hide corrections — we update transparently.
Independence and Conflicts of Interest
iCalcApp does not accept payment from financial institutions, health companies, or any third party to feature, promote, or bias any calculator result. All calculator outputs are generated purely from the mathematical formula applied to the user's inputs. There are no sponsored results, paid placements, or partner-influenced outputs in any iCalcApp tool.
Blog content is written independently. We do not accept sponsored articles, paid reviews, or affiliate arrangements that influence the editorial content of calculator explanations or educational guides.
Disclaimers
iCalcApp calculators provide mathematical estimates based on the inputs provided and standard formulas. They are designed to be informative and useful for planning purposes. However:
- Finance calculators do not account for lender-specific fees, creditworthiness, variable rate changes, or individual tax circumstances. Always confirm financial decisions with a qualified financial advisor or your bank.
- Health calculators use population-level formulas and cannot account for individual medical conditions, medications, or clinical factors. Results are not medical advice. Consult a healthcare professional for personalised health guidance.
- Tax calculators are based on published rate schedules and may not reflect the latest amendments. Always verify tax liability with a chartered accountant or official tax portal.
Contact Us About Content
If you find an error in any calculator or article, or if you believe a formula is outdated or incorrectly applied, please contact us via the Contact page. Include the page name, the specific issue, and any supporting reference if available. We take all accuracy reports seriously and investigate every report.
Last reviewed: May 2026
Content verification process: step by step
Every calculator page published on iCalcApp passes through a four-stage process before going live:
- Formula sourcing — the mathematical formula used in each calculator is traced to a primary source: ICMR guidelines, RBI circulars, CBIC tax manuals, ISO standards, or peer-reviewed research. No formula is published without a traceable reference.
- Output testing — every calculator is tested against at least 5 known input/output pairs, including edge cases (zero values, very large numbers, maximum/minimum inputs). Results are compared against official government calculators where available.
- Editorial review — content is reviewed for clarity, completeness, accuracy of examples, and appropriateness of citations. FAQ questions are verified to match actual user queries.
- Scheduled re-review — all pages carry a "Last reviewed" date. Finance pages are reviewed when regulatory changes occur (GST rate changes, income tax budget amendments, RBI policy changes). Health pages are reviewed when major medical guideline updates are published.
Sources and citations policy
iCalcApp cites sources for all statistical claims, regulatory values, and medical reference ranges. Accepted source categories:
| Content Type | Primary Sources Used |
|---|---|
| Income tax, GST, salary | CBDT circulars, CBIC guidelines, Income Tax Act 1961, Ministry of Finance press releases |
| Investment and banking | RBI publications, SEBI investor education materials, AMFI data |
| Health and nutrition | WHO guidelines, ICMR-NIN dietary reference values, Ministry of Health advisories, The Lancet, NEJM |
| Mathematical standards | ISO 80000 standards, NIST technical notes, standard textbook references |
| Population statistics | Census of India, National Family Health Survey (NFHS), NSSO reports |
Corrections and updates policy
If you find an error in any iCalcApp calculator or content page, email us at hello@icalcapp.com to report it. We review all error reports within 48 business hours. If an error is confirmed, we correct it immediately, update the "Last reviewed" date, and note the correction at the bottom of the page where material. We do not silently edit significant factual errors — corrections are acknowledged.
Advertising and independence
iCalcApp does not accept payment to feature, promote, or rank any financial product, health product, or service. Calculator results are determined solely by the mathematical formula entered — not by any commercial relationship. We do not receive referral fees, affiliate commissions, or sponsored placement fees. This policy is absolute: no advertiser has any influence over calculator outputs, content recommendations, or editorial decisions.
Frequently asked questions
Who reviews iCalcApp calculator content?
All calculator pages and blog guides are reviewed by Mayra. Health calculators are additionally reviewed by Dr. P Nair, MBBS, MD (Community Medicine). See the author profile for full credentials.
How often is calculator content updated?
Finance calculators (GST rates, income tax slabs, EPF rates, RBI policy rates) are updated immediately when regulatory announcements are made. Health reference ranges are updated when WHO or ICMR publish revised guidelines. All pages carry a "Last reviewed" date. The site undergoes a full review quarterly.
What sources do you use for formulas?
Every formula is traced to a primary source before publication: RBI circulars, CBIC guidelines, Income Tax Act 1961, WHO guidelines, ICMR Dietary Reference Values, or ISO 80000 standards. Sources are documented in our methodology page.
How do you handle corrections?
All error reports submitted via email to hello@icalcapp.com are reviewed within 48 business hours. If an error is confirmed, we correct it immediately, update the "Last reviewed" date, and note the correction at the bottom of the page. We do not silently edit significant factual errors.
Does iCalcApp accept sponsored content or paid placements?
No. iCalcApp does not accept payment to feature, promote, or rank any financial product, health product, or service. Calculator results are determined solely by the mathematical formula — no advertiser has any influence over calculator outputs, content recommendations, or editorial decisions.