Citing data by DApp Review, as of 09:00 on October 21 (UTC), there are 1,984 ETH DApps, 617 EOS DApps, 589 TRON DApps, and 36 IOST DApps.

1. Top 3 ETH DApps by user volume in the past 24 hours are: Playtowin.io (1,002), YOLOrekt (931), and HyperSnakes (704).

2. Top 3 EOS DApps by user volume in the past 24 hours are: hashbaby (45,232), ADM (17,651), and Dice (10,447).

3. Top 3 TRON DApps by user volume in the past 24 hours are: BeeHive (2,890), RocketGame (2,659), and DDEX (2,565).

4. Top 3 IOST DApps by user volume in the past 24 hours are: Endless Game IOST (2,128), IOST DEX (1,985), and Crypto Sanguo (227).

5. New DApps: ETH DApps (0); EOS DApps (2); TRON DApps (0) and IOST (0).