$100 per week that would be too low. what mode do you wanna do? CPC, CPI, CPM? the payout is different, and also changeable according to the country you targeted. I can only tell you for CPI, US-IOS would be around $2.5~$3.5, Android-US around $1.5~$2.3, but SEA countries are cheaper, except Singapore.
If you don’t have any targeting, we might be the perfect solution for you. Appnext offers $0.1 CPI global campaigns, if you integrate our tracking SDK. PM me for more details, or wirte me to: [email protected]