Chrome tab count now includes pages in Tab Groups on Android
Tab Counter
Triangular Tablet Counter – Pillcrushers
Amazon.com: Mount-It! Anti-Theft Kiosk Stand for iPad, iPad Pro, iPad Air, Samsung Tab A | Secure iPad 10.2 Retail Kiosk | Locking Counter-Top Tablet Stand Compatible with 10.2 and 10.5" Tablets, White :
Tab Count
Display Open Tab Count in Firefox - gHacks Tech News