Frequently Asked Questions

FX Alert is a free web application that helps you monitor foreign exchange rates with historical analysis, rate band classifications, and AI-powered insights. It helps you decide when to exchange currency based on historical trends.

FX Alert is completely free to use. We monetize through affiliate partnerships with trusted forex brokers and currency transfer services. We may earn a commission when you sign up through our recommended links.

No account required! All features are accessible without registration. Your preferences (selected currencies, analysis period) are saved locally in your browser.

FX Alert supports over 160 currencies from around the world. Popular pairs include USD/THB, EUR/THB, GBP/THB, JPY/THB, SGD/THB, and many more.

Rate bands classify the current exchange rate based on historical percentiles. We use 5 bands: EXTREME (≤10%), DEEP (10-25%), OPPORTUNE (25-75%), NEUTRAL (75-90%), and RICH (≥90%). This helps you quickly assess if the rate is favorable.

The EXTREME band (≤10th percentile) represents historically low exchange rates. For THB-based users, this means the foreign currency is relatively cheap—potentially a good buying opportunity if the trend reverses.

The RICH band (≥90th percentile) represents historically high exchange rates. For THB-based users sending money abroad, this means you get more THB per unit of foreign currency—potentially a good time to send remittances.

Rate bands are calculated dynamically based on the historical period you select (1, 3, 5, or 10 years). The current rate is compared against all data points in that period to determine its percentile ranking.

We use the Frankfurter API, which sources data from the European Central Bank. Rates are updated daily and are considered mid-market rates (the midpoint between buy and sell rates).

FX Alert does not provide "predictions" in the traditional sense. We show historical trends and statistical analysis. Exchange rates are influenced by many unpredictable factors including economic events, geopolitical situations, and market sentiment.

Historical data availability varies by currency pair. Most major pairs (USD, EUR, GBP, JPY) have data going back to 1999. Some newer currencies may have less historical data available.

Not exactly. Banks and exchange services add their own markup (spread) to the mid-market rate. The rates shown here are reference rates. Actual rates will vary by provider.

We use OpenAI's o3 model to analyze historical rate patterns, trends, and distributions. The AI provides human-readable summaries of market conditions and actionable recommendations based on statistical analysis.

AI analysis is for informational purposes only and should not be considered financial advice. Always conduct your own research and consult a qualified financial advisor before making significant currency exchanges.

No. FX Alert does not collect personal identifiable information such as names, email addresses, or phone numbers. We use Google Analytics for anonymous usage tracking only.

Yes, but locally. Your currency selections and analysis period preferences are stored in your browser's local storage. They are not sent to any server.

We do not sell or share your personal data with third parties. Anonymous usage data may be processed by Google Analytics. See our Privacy Policy for details.

Affiliate links are special URLs that track referrals. If you click through and sign up for a service, we may earn a commission. This helps keep FX Alert free for everyone.

No. You pay the same amount whether you use our affiliate link or go directly to the service. The commission is paid by the service provider, not you.

We only partner with reputable, regulated forex brokers and established currency transfer services. Recommendations are based on service quality, regulation, and user reviews.

Initial load may be slower when fetching historical data. This depends on your internet connection and the selected time period. Subsequent views are faster thanks to browser caching.

Currently, FX Alert is a web application optimized for both desktop and mobile browsers. A native mobile app is on our roadmap for future development.

FX Alert requires an internet connection to fetch current and historical exchange rates. However, some cached data may be available for short periods offline.

Please email us at the address below with a description of the issue, your browser, and any error messages you see. We appreciate your feedback!