If you have a modded 3DS and want a simple, fast way to download and prepare CIA files, Wii U USB Helper is an excellent tool. Its integration of 3DS alongside Wii U makes it a Swiss Army knife for Nintendo digital content.
For long-term preservation, many users have archived complete 3DS libraries locally. Wii U USB Helper is still the best tool to build that archive. Absolutely, with caveats. wii u usb helper 3ds
That said, the developer of Wii U USB Helper stopped active updates in 2019. The community maintains title key databases and workarounds. The 3DS functionality remains fully operational but may eventually break if Nintendo restructures their CDN. If you have a modded 3DS and want