Final answer:
iOS apps that reward users for downloading other apps typically offer points redeemable for cash or gift cards. Always check their legitimacy and compliance with App Store policies before downloading.
Step-by-step explanation:
The question is asking about iOS apps that offer monetary rewards for downloading other apps. While I can't specify which apps currently offer this due to ever-changing app policies and business models, historically, there have been apps that provided users with incentives for downloading and trying out other apps.
Users typically earned points for each download that could be redeemed for cash or gift cards. It's important to exercise caution and read reviews and user experiences before downloading such apps to ensure they are legitimate and to understand the terms of the rewards.
Since these apps' rewards systems can be akin to promotional or affiliate marketing, it's essential to note that they should comply with Apple's App Store policies, which can change and affect which apps can offer such incentives.