Numo has just introduced an open-source Android application that turns standard smartphones into Bitcoin-ready point-of-sale terminals. By leveraging NFC technology, the app allows businesses to accept Bitcoin with the same "tap-to-pay" convenience found in Apple Pay or Google Pay, eliminating the need for specialized card readers.

### Seamless Tech: Cashu meets NFC

The app’s core functionality is powered by **Cashu**, an open-source ecash protocol. When a customer pays, their wallet interacts with the merchant’s phone via NFC to exchange a payment token. The process is designed to be near-instant, providing a familiar checkout flow for both parties.

While Cashu drives the tap-to-pay feature, Numo remains versatile by supporting standard **Lightning Network** invoices, ensuring compatibility with any mainstream Bitcoin Lightning wallet.

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### Key Features for Merchants

Numo isn't just a payment gateway; it’s a lightweight business management tool. Notable features include:

* **Zero Platform Fees:** Merchants keep 100% of their sales.
* **Automated Settlement:** Users can set a balance threshold that triggers an automatic sweep of funds to their personal Lightning address.
* **Business Tools:** The app includes built-in inventory tracking, payment logs, and support for tips.
* **Resilience:** It offers offline payment support for environments with spotty connectivity.

### The Philosophy of "Tap and Go"

Developed with support from **OpenCash**, Numo is fully open-source under the MIT license. The team’s mission is simple: make Bitcoin transactions as frictionless as a physical tap. To further appeal to the privacy-conscious community, Cashu’s blind-signature protocol ensures that payments remain private while still benefiting from the speed of the Lightning Network.

Currently available as a direct APK for Android, the app is expected to hit the Google Play Store shortly, with future updates slated to include integration with **BTCPay Server**.