- Fix bug biometric login

New Game Mode: • Make a class, read out a 6-digit code - host add their own members. • Invite a whole class list at once, or from your friends. • One tap races the roster: no code, everyone gets notified. • See which facts the class is stuck on, per child. • Attendance tells "left part-way" from "never turned up".

Ranks by player, and a fairer game. • RANKS now lists each child on their own row - their name, photo and record, with the family name below. • Profile photos now show in the player picker. • BADGES that never unlocked now do: battles and tournament placings pay out. • Tap a battle invite and land straight in the match. • Classroom results show everyone's finish time. • Sticker tray shows your coins and what you own. • Fixes: the x³ header and the Enter key.

A big rewards update — now there's a reason to come back every day. • COINS & SHOP — finish grids to earn coins, then spend them in the new Shop on stickers, avatar rings and profile icons. Buy once, own forever. • 19 BADGES — a full collection for milestones, perfect grids, speed records and add / subtract / multiply / divide mastery. • DAILY STREAK — grow your streak by playing every day, bank streak-freezes for busy days, and unlock streak milestones. Friendly reminders help keep the fire alive. • BATTLE STICKERS — send a fun reaction to your opponent mid-race (it only pops on their screen, never yours). • FAMILY PROFILES — up to three kid profiles on one account, each with its own stats, rewards and look. • SIMPLE FRACTIONS — optional ½ and ¼ operations you can toggle per difficulty. • Stability and polish: hardened uploads, read-only account email, and lots of small fixes.