I also wanted to try tradier but found it doesn't have mobile app. so it is of no use. Now you have IB vs TastyWorks. There is no much difference IB vs TastyWorks from commission perspective. TastyWorks has good mobile platform easy to use. I just opened IB but going to close as I didn't like their mobile app & platform. It looks they built app long time back & hardly changed. IB apps I didn't fell user friendly like TOS or Tastyworks. If you deposit money in IB they will allow to us it after 5 days, such rules irritate me. But in Tastyworks it is not like that. I personally believe TastyWorks is changing brokerage industry. I don't agree with many ideas of tastytrade but from brokerage firm perspective I consider Tastyworks worth to try.