At present, there are too many perpetual calendar apps on the market, which one is better?

In fact, there is no need to be too entangled in this, mainly because of your own needs. You like China's almanac as much as I do, so the ink almanac I am using now provides the function of querying almanac very well, which meets my requirements for my use and feels quite good when used. So many times we have to look at our actual needs and what is best for us. You can ask me again if you don't understand.