There are several popad networks that offer low minimum payouts. Here are a few popular ones:
1. PopAds: PopAds is a well-known popunder network that has a minimum payout of $5. They have a wide range of ad formats and offer competitive rates.
2. PopCash: PopCash is another popular popunder network with a minimum payout of $10. They have a user-friendly interface and provide timely payments.
3. PropellerAds: PropellerAds is a well-established advertising network that offers popunder, push notifications, and other ad formats. They have a minimum payout of $25 and provide various payment options.
4. PopMyAds: PopMyAds is a popunder ad network that offers a minimum payout of $5. They have global coverage and accept publishers from around the world.
5. Adsterra: Adsterra is a comprehensive advertising network that offers popunder ads, as well as various other ad formats. They have a minimum payout of $5 and provide multiple payment methods.
Please note that the payout thresholds and payment methods may vary over time, so it's always a good idea to check the latest information on their respective websites or reach out to their support teams for the most accurate and up-to-date details.