What are the most legitimate ways to get paid for watching advertisements and earning rewards without investing any money upfront?

Swagbucks offers up to 300 Swagbucks (equivalent to $3) per ad.

InboxDollars specializes in brief ad content, providing a quick and efficient way to earn money.

MarketForce pays users to visit movie theaters to watch ads and previews.

Nielsen Computer and Mobile Panel offers passive income for allowing the app to collect data on your device usage, including watching ads.

AdWallet pays users for watching ads, taking surveys, and referring friends.

iRazoo has paid out over 55 million in cash rewards to its users since its inception.

GrabPoints users can earn points by watching ads, playing games, and completing surveys.

Zoombucks allows users to earn up to $0.02 per video watched.

Dabbl offers rewards for watching short videos showcasing groceries and personal care products.

Earnably allows users to earn points by watching ads, completing surveys, and downloading apps.

MyPoints offers up to 500 points (equivalent to $5) per ad.

Panel App collects data on users' location and habits for rewards, including watching ads.

AppNana offers rewards for watching ads, downloading apps, and completing surveys.

AdFun allows users to earn cashback and rewards for watching ads and completing surveys.