Mobile notifications haven’t worked in 1.5 years now.
In my opinion, it was what not worth the money for 505 Games to continue the contract with the third party that was doing them. They thought they could do it in house. Turns out they couldn’t and though they know it’s broken are unwilling to invest the time to get it to work.
Since 2024 at least 3/4 the player base have left Gems of War for good or play it less than 90% less than they did prior. Though it can’t all be blamed on the game no longer “reminding people to play” it certainly does not help.