is there Turbotax download for 2016?

No app but you there are two options:

See

https://ttlc.intuit.com/questions/3406775-turbotax-2016-will-not-be-available-on -the-mac-app-store

TurboTax 2016 will not be available on the Mac App Store

For Tax Year 2016, TurboTax customers will no longer be able to download the TurboTax software from the Mac App Store. TurboTax customers can still purchase and download TurboTax software for Mac at https://turbotax.intuit.com/personal-taxes/cd-download/
or can use TurboTax Online and only pay when they’re ready to print or file their return.

The decision is a result of our continued focus and resource allocation to innovating in our TurboTax Online and Mobile offerings. TurboTax remains fully committed to delivering a great experience for our Mac customers.

Just a note to follow up on above. Yes you can purchase and download at location noted but software does not work. I spent 2 hours with Intuit support yesterday on this topic. Turns out they know they have an issue with TT2016 on Macs- simply won't work (but keep selling the software anyway). I can install fine but when I log in to use last year's return it crashes. Have tried 7 times on two Macs and same results. I think you can still start from scratch on return but not able to login for prior year retrieval. Very disappointed in Intuit- poor quality, poor support, poor customer experience. Been a TT user for 15+ years w/out problem- did not realize they could be so incompetent.