How many hatchling levels

8 or 9 is the highest but it’s not possible to maintain anything higher than 3 without purchasing apples, 2 is the highest you can feed daily. I usually stick to level 2 unless I’m in a heated CvC and need extra power.

Must cost an absolute fortune to have a hatching at those levels unless you’re a hacker/cheater.

You can sustain level 3 quite easily feeding every other day (daily during a feather frenzy).

On a normal day you can get 13-15 or so easily,

3 in chests. 3 in ToF. 3 in Arena. A maximum of 4 on map levels and levels of the Daily Challenge (repeatable)/KPP.

3 if you complete the DC and 5 if you complete the KPP.

If there’s a hatchling event on those numbers are increased e.g 5 in chests, 6 in arena, 6 for the DC 8 for the KPP.

But I think even if you hit everything every day (which is pretty much impossible without spending a lot of time and gems, given some of the DC/KPP’s and the vagaries of the ToF) you still couldn’t quite get the 50 apples every 2 days to sustain a level 4 hatchling without spending money/gems.

Easy to tell who the pay for play people are because their hatchling is always at the highest levels.