Number Spark: Math Puzzles

Make mental math part of your day. Number Spark turns addition, subtraction, multiplication, and division into quick, repeatable challenges. Pick your pace, choose a theme, and see what you can do. MAKE IT YOURS Play with bold Vibrant colors, calm Pleasant greens, or a clean Minimal look that follows your device's Light and Dark Mode. Vibrant is included with free play; Pleasant and Minimal are included with the optional one-time Pro unlock. A CHALLENGE EVERY DAY Get a varied, personalized Daily Challenge based on your recent answers and practice history. See why its operation and difficulty were chosen before you start. Each day keeps the same challenge when you return, and missed days stay available for catch-up. Track completed days, build your streak, and turn on an optional reminder that skips completed days. Daily progress is personal and stays on your device. TWO WAYS TO PLAY Sprint: take on a 10-question run against the clock. Survival: keep going as the time allowed for each question gets shorter. FIND YOUR CHALLENGE Practice all four operations at Warm-up, Focused, or Challenge difficulty. Choose a comfortable starting point or push yourself with tougher numbers. CHASE YOUR BEST Earn bonuses for quick answers and consecutive correct answers. Track your best scores for each operation, mode, and difficulty, then review your answers after each run. Celebrate perfect runs, new bests, and daily completions with lively visual feedback. Three hearts give you room to recover, and mistakes reveal the correct answer. MADE FOR iPHONE AND iPAD Play with layouts that adapt to your screen and available window, including partially folded iPhone Duo displays. Use the on-screen keypad or a hardware keyboard, and adjust haptic feedback in Settings. OPTIONAL GAME CENTER Compare regular Sprint and Survival scores on Game Center leaderboards. Daily Challenges remain personal, and you can play without Game Center. FREE DAILY PLAY Start with five free runs per day. The optional one-time Number Spark Pro purchase unlocks unlimited play and the Pleasant and Minimal themes. No subscription. Optional tips support development and do not unlock features. No ads or tracking. Your scores, daily history, and settings are stored locally on your device. Purchases and optional Game Center services are handled by Apple.