Really?
Number one, before you said 300k and now it's 500k?
Number two, again, Google play app says it's has been downloaded 100k +. Notice the plus sign. It is MORE than 100k. Google play website says between 100k and 500k downloads. So, you do not know if it has been downloaded 100,001 or 500,000 or 213,322 or 300,000 times. How hard is that to understand?