Unity Ads vs Adsun: different inventory
Unity Ads focuses on native mobile apps and games. Adsun serves ads inside Telegram: Mini Apps (web apps opened in Telegram), bots and public channels. It is not an SDK for native iOS/Android apps or ordinary websites. If part of your audience already lives in Telegram, Adsun monetizes that traffic instead of replacing your current setup.
Reward ads that respect players
Opt-in rewarded ads fit game loops: extra lives, boosts or coins. Interstitials go between levels, never mid-action.