BrainBlitz vs PlusGrid

Think you're quick with numbers? Prove it. BrainBlitz throws you into a 30-second math showdown. Every correct answer earns a point and adds time to the clock. Every wrong answer costs you. When the timer hits zero, it's over. The twist? It gets harder the better you do. Way harder. CHOOSE YOUR CHALLENGE Play Challenge Mode to climb all 7 difficulty levels — or jump straight to any level to practice or push your limits. 7 DIFFICULTY LEVELS • Level 1 — Warm Up: Simple addition to ease you in • Level 2 — Getting Started: Addition and subtraction • Level 3 — Picking Up Speed: Multiplication joins the mix • Level 4 — Heating Up: All four operations, bigger numbers • Level 5 — On Fire: Two-step expressions (3 × 7 + 4 = ?) • Level 6 — Genius Mode: Squares, roots, percentages (7² = ?, √64 = ?) • Level 7 — Unbeatable: Pythagorean theorem, cube roots, compound math PER-LEVEL HIGH SCORES Track your best score on every level. Chase records across the full ladder. BUILT FOR QUICK SESSIONS Each round takes 1-3 minutes. Perfect for waiting rooms, lunch breaks, or "just one more game" moments. TRACK EVERY DETAIL After each round, see your full stat breakdown: accuracy, fastest answer, best streak, highest level reached, average response time. STREAKS MATTER Land 3+ correct answers in a row and your streak counter lights up. Keep it going and watch your score climb. THE IMPORTANT STUFF • Free to try: Play 3 full games before deciding • Just $0.99 to unlock unlimited play • Zero ads. None. Not now, not ever. • Works completely offline • Your scores save automatically From Zafronix — quality games with no ads and no tracking.

PlusGrid is a cozy number puzzle — a relaxed mix of Sudoku, Kakuro and Killer Sudoku. Fill the empty cells with digits so that every row adds up to the number on its left, and every column adds up to the number on top. Just like Sudoku, no digit may repeat within a row or a column. Each puzzle uses only a small set of consecutive digits. • Three grid sizes: 3×3, 4×4 and 5×5 • Three difficulties — from a quick warm-up to a real brain-teaser • Pencil-mark notes, hints, and unlimited undo • A timer, streaks and per-mode best times • Light and dark themes • A short interactive tutorial for new players • English, Russian, Spanish and French • Plays fully offline — no account, no ads, no tracking Perfect for a few quiet minutes on a break, a commute, or before bed. Just you, a tiny grid, and a satisfying click when every line turns green.