I don’t want to bombard this thread, so I will just add a little more Context.
When the Apex was released, there were a number of people unsure if they wanted to trust a 3rd Party like Fidesmo and be tied to their environment.
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I think @StarGate01 had the idea of an untethered option - and the FlexSecure was born
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This new offering is a turn key alternative to the ApexFlex.
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@GrimEcho did great write up, for those wanting to learn how to write and remove apps
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My OK review of the FlexSecure
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Some key features of the FlexSecure
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Comes with install pack (needle, lube etc.)
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FlexSecure Applets and documentation
GitHub -
The flexSecure is for advanced users, BUT also get up and running whilst you learn
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Custom needle or scalpel install
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8mm x 28mm
I WOULD STRONLY SUGGEST YOU GET YOURSELF A “FlexSecure Test Card” BEFORE FUCKING WITH ADDING MORE APPS TO YOUR FLEXSECURE IMPLANT
- A little birdy
told me DT may stock test cards SOON ™
Cards ordered, awaiting external supplier, so who knows when they will arrive, but what you can do in the mean time is, Keep asking Tac0s and Amal “when is Soon™” because they love that 
What you can actually do is, order a FlexSecure, get it installed and healed and use it “as is” until the test cards come in.