Number Series: Mind Puzzles

KazyDroid

In-app purchases

About this game

2, 4, 8, 16… what comes next? If you love the moment a pattern clicks, Number Series is your kind of number and logic puzzle game. Crack number sequences, solve math puzzles and brain teasers, and come back every day for fresh challenges. Free to play, with no ads.

🔢 NUMBER PUZZLES THAT CLICK
Find the next number in a sequence, spot the odd one out, complete the equation, work out the hidden rule or find the missing operator. 40 kinds of number puzzles across 5 families, from gentle to genuinely tricky. Stuck? Grab a hint.

☀️ 5 QUICK DAILIES, EVERY DAY
• Equatle: guess the hidden equation in five tries
• Target: six numbers, one target, 60 seconds
• Sequence Set: find the triples that share a rule
• Symbol Sums: three shapes, three equations, crack their values
• Daily Estimate: your guess against the crowd's
New puzzles every day, the same for every player, so you can compare scores with friends. Plus the Daily Challenge, with a streak to keep alive.

🧠 18 BRAIN TRAINING MINI-GAMES
Quick, playful rounds of mental math, number memory and reaction games: Speed Solve, Number Memory, N-Back, FizzBuzz Reflex, Sum Snap, Greater/Less Sprint, Estimation Station and more.

🧩 BIGGER PUZZLES
Kakuro number crosswords, Number Cascade (drop, merge and chain falling numbers) and Math Maze, where every step changes your total on the way to the target. Play the daily puzzle or keep going in endless mode.

🎮 A MODE FOR EVERY MOOD
Classic (25 levels with a hidden-word twist), Marathon, Speed Blitz against the clock, Zen Practice with no timer, and Category Mastery with 120 star challenges.

⚔️ PLAY WITH FRIENDS
Challenge a friend to a Duel with a link, take on the weekly Tournament, and chase Google Play Games leaderboards and achievements.

📊 IQ TEST, JUST FOR FUN
50 questions across 5 abilities, with an IQ-style score and a breakdown per category. It's for entertainment, not a clinical assessment.

🎨 MADE TO FEEL LIKE YOURS
Three colour themes with light and dark mode, Material You colours on Android 12 and up, and a layout that adapts to phones, tablets and foldables. Available in 12 languages.

⭐ OPTIONAL PREMIUM
Every game above is free to play, and there are no ads. An optional Premium subscription adds extras: explanations that show their working, unlimited Quick Daily rounds and hints, unlimited Kakuro hints, Mistake Practice, Practice Studio, Insights, Expert difficulty, the Daily Archive, more streak freezes, hourly cloud sync and two extra themes.

Ready for your first puzzle? 2, 4, 8, 16… what comes next?

Ratings and reviews

Good problems. But too too too many ads.

didn't like it at all... easy idiotic questions

I really love the new design. Simple and clean!

What’s new

The biggest update yet — and everything you already play stays free.

Play with friends: add them, compare stats, challenge them, and see who wins each daily.
Never lose progress: it now follows your Google account.
More to play: 5 new Quick Dailies, Math Maze, a Daily Archive and 38 avatars to earn.
Your data, your call: we ask before collecting anything, and you can export or delete it.
Prefer more help? An optional Premium adds step-by-step hints, streak freezes and deeper stats.