Users may encounter unforeseen difficulties when attempting to cash out their earnings if an app does not provide a clear explanation of its commission structure or payment schedule. Also, the app may be a pyramid schemrainbow rummye rather than a genuine opportunity to make money if it demands large upfront payments or pushes users to buy products before they can begin making money. An excessive number of unfavorable comments or grievances on different platforms is another warning sign. Every app will have its share of unhappy users, but a trend of persistent complaints, particularly in relation to payment problems or customer support, should raise red flags.