Terms & Conditions

Who we are

Kalku Currency Converter is published by Kode Yazılım ve Danışmanlık Ltd. Şti. ("we", "us"). By downloading, installing or using the app, you agree to these terms. If you do not agree, do not use the app.

The service

Kalku is a currency converter and calculator. Exchange rates are drawn from a mix of market data sources chosen for coverage and reliability, refreshed periodically rather than streamed live, and are provided for informational purposes only. Do not rely on a rate shown in the app for a trade, a settlement, a regulatory filing, or any decision where an exact, real-time, or officially quoted figure is required. A rate you save as a manual override or in your conversion history is exactly that — a number you entered or chose to keep — and we make no claim about its accuracy going forward.

Currencies you create yourself, and any rate you attach to them, are entirely your own data. We do not verify or endorse anything you enter.

Kalku Pro

Some features — home-screen widgets, manual rate overrides, custom currencies, the rate chart, the portfolio, the Real Cost log, alternate rate sources, and tracking more than five currencies — require Kalku Pro, available as a Monthly or Annual subscription, or as a one-time Lifetime purchase.

• Purchases made through the App Store or Google Play are billed, renewed, and refunded entirely by Apple or Google under their own terms. We do not process payments and cannot issue refunds ourselves.
• A subscription renews automatically until you cancel it through the App Store or Google Play account settings — the app has nothing of its own to show there, which is why "Manage subscription" hands off to the store directly.

Third-party data & attribution

Kalku's recommended default rate is not published by any single company — it is computed by the app's own backend from a blend of independent market feeds, chosen and weighted the way it is specifically so that no single upstream vendor can be singled out as "the" source of a number you see. In the interest of transparency, and because two of our free data providers require it as a condition of their licence, the vendors behind that blend — and behind every alternate source offered in Settings — are credited here:

• Central-bank fiat reference rates via the Frankfurter API, sourced from the European Central Bank and other central banks it aggregates.
• An independent fiat rate feed from ExchangeRate-API, used under its free, attribution-licensed open tier.
• Crypto and metals rates via the currency-api project, released under CC0.
• The Syrian pound's rate, served everywhere in the app regardless of which source is selected, is the app's own live market feed. It is a market rate, not the official Central Bank of Syria rate, and the app labels it that way wherever it appears.
• Turkish lira desks — Türkiye Cumhuriyet Merkez Bankası (TCMB), Kuveyt Türk, and QNB — are each that institution's own published counter rates, credited by name in the app itself when you select one.

None of these providers endorses Kalku, and none is responsible for how a rate is displayed, rounded, blended, or acted on inside the app.

No warranty

The app, and every rate it shows, is provided "as is" and "as available", without warranty of any kind, express or implied, including accuracy, fitness for a particular purpose, or uninterrupted availability. A source can go stale, fail, or be temporarily unreachable — when that happens the app says so rather than substituting a different number, but it does not guarantee the feed will recover on any particular schedule.

Limitation of liability

To the fullest extent permitted by law, we are not liable for any loss arising from your use of, or inability to use, the app or any rate it displays — including a financial decision made using a converted amount, a manual override, or a saved portfolio position.

Changes

If we change these terms, we will update this page and the date at the top. Continued use of the app after a change means you accept the updated terms.

Contact

Questions about these terms, or about a source credited above: support@kodeyazilim.com.tr. See also our Privacy Policy.