Interestingly, a recent news story on several buildings in Northwest Texas that incorporated swastikas in their design, interviewed some experts who explained that it was specifically the "tilted cross" design that was used in Nazi symbolism, and the non-tilted versions are more likely to be benign, Native American or Asian usages.

https://youtu.be/8uH3gIzqnVM?si=24KFsG85FRJ29Y05

And of course this app gets it wrong, and avoids the benign uses, because it is quite impossible to render a "tilted swastika" image on a QR code! Absurd!