Hello ZeroZero, and thank you for your input, it's really appreciated.
However, things appear to be quite different on the android version I am currently playing:
1. Elven Wizard with 25 IQ gets max 10 SP/lvl, whereas another elven wizard with only 22 IQ gets max 9 SP/lvl
2. Elven wizard got an AC-1 boost from getting DEX from 20 to 21, and yet another one when DEX increased from 25 to 26.Natural max DEX for elves seems to be 16.
3. Human monk: HP/lvl changed from max +13/lvl to +14/lvl when CON increased around 23 or 24
All in all, it appears that attributes give increasing bonuses (AC/HP/SP) until at least 26. If anyone tested above that, extra input is always welcome
