Islam is Pay-to-Win
Islam is Pay-2-win. A rich Muslim will receive more rewards than a poorer Muslim.
Exhibit A. A rich Muslim is able to do more good deeds than a poor Muslim. poor Muslim might be working too much, and may not have time to do good deeds, A wealthy Muslim can do much more good than an average Muslim. a Rich Muslim can donate millions to charity, start and fund a food drive, buy tons of toys for kids etc, a poor Muslim can't afford that. A Saudi businessman named "Sulaiman bin Abdulaziz Al Rajhi" has lost his billionaire title after donating billions to charities and other philanthropic ventures.(my source) He will be rewarded immensely in heaven, How is the average Muslim supposed to compete with that. Imagine a Muslim man who works 50 hours a week making $20 an hour and doesn't have the time or means to do good deeds. The poor Muslim can still be rewarded but it's much easier when you are rich, the playing field isn't the same
Exhibit B. There are rewards for praying in different locations, the highest reward being in Mecca, the reward being 100,000x. A rich Muslim can afford to fly to mecca and pray and get 100k times the reward as a poor Muslim that cannot afford to. a wealthy Muslim who has prayed in Mecca 5 times and never again is rewarded more than a poor Muslim who has prayed everyday in his house.
In Christianity as long as you repent for your sins, and accept Jesus Christ as your lord and savior, no matter how wealthy you are, no matter the location you pray, you will make it to the Kingdom of heaven.