Honestly, every update has simply reinforced the pay-to-win mechanics. Golden eggs are the currency used to purchase permanent upgrades and boosts. You were able to break down artifacts in exchange for golden eggs. That was removed. They also increased the cost of both boosts and upgrades, while cutting the time almost every boost was active for by half. Don't download it. Give it a couple months, maybe they'll stop being so greedy, but right now its just garbage.