ロムテン is a mobile application designed for companies that employ or are considering hiring foreign workers. Its primary function is to prevent illegal employment by verifying the authenticity of residence cards through a straightforward process. Users can input residence card numbers or upload photos, and within seconds, the app retrieves and displays the embedded IC chip information for verification.

The application allows employers to compare the displayed information against the actual residence card, ensuring that no counterfeit cards are being accepted. Key features include confirming residency status and expiration dates, as well as checking employment eligibility. By utilizing ロムテン, employers can mitigate risks associated with illegal employment, thus safeguarding their business reputation and adhering to legal requirements.