Credit Card Number Validator is a free Android app developed by Weather Pluse. It is a business and productivity app that falls under the finance category. The app allows users to check their credit card numbers and specify the type of card. It utilizes the Luhn algorithm or Luhn formula to process the card number. The Luhn algorithm is also known as the "modulus 10" or "mod 10" algorithm. It is compatible with Android 9.0 and ensures that the entered card number is accurate.

The Credit Card Number Validator app is a useful tool for those who want to check if their credit card numbers are valid. The app is easy to use, and users can quickly input their card information to verify it. The app does not collect, store, or send entered card numbers, and the developers make it clear that they do not represent any financial institution or bank. Overall, the Credit Card Number Validator app is a helpful and reliable resource for anyone who wants to ensure the accuracy of their credit card information.