Cider is not like a beer!
Beer finishes out as a drinkable flat drink that just needs to be carbed up by primming or forced carbonation.
Cider finishes as a pretty undrinkable, dead dry nay acidic flat juice.
If you prime it you just get fizzy dead dry nay acidic juice.
You need to sweeten it up a bit before you carbonate.
Now the problems is you either need to use artificial sweetners (yuk) and then prime OR pasturise, sweeten using sugar or pure AJ bthen force carb.
Making good cider ain't easy or cheap