# Spark7 - Chain Reaction Game — user reviews > 29 indexed App Store user reviews of Spark7 by Andrew Cohen, rated 5.00/5 from 43 ratings. - Source: https://appshunter.io/ios/app/spark7-chain-reaction-game/id6759691707/reviews - App overview in markdown: https://appshunter.io/ios/app/spark7-chain-reaction-game/id6759691707.md - Rating breakdown: 5★ 43 · 4★ 0 · 3★ 0 · 2★ 0 · 1★ 0 ## Newest reviews (19 of 29) ### 5/5 — Addictive! *2026-06-16* Once you get the hang of it it’s a blast ### 5/5 — Super Fun *2026-06-15* A game full of strategy, yet easy to pick up and learn… the challenge lies in analyzing and improving how to best eliminate other sphere’s with the given numbers, it’s a fun game to keep on learning while the “surge” factor keeps it exciting 💥💥💥💥💥💥💥 ### 5/5 — Tetris meets Sudoku *2026-06-14* App combines the best aspects of Tetris and Sudoku to create the new generational logic puzzle game! Great to play during commutes or between life’s activities. ### 5/5 — New Brain Game *2026-06-13* I can see how this can become addictive! The hard part is learning the game but it gets easier before it gets harder again. I don’t play other games so most of this is new to me (older generation!) ### 5/5 — Addicting brain workout *2026-06-10* I downloaded this new game try something new. It reminds me a little bit of sudoku but way more fun. It also feels more addicting than Candy Crush. 😆 Glad to know there’s some cognitive benefits!! ### 5/5 — Brain Blast! *2026-06-10* Spark7 is a great brain teaser, entertainment game. The ‘how to play’ is clear and concise and once you learn it, you’ll be hooked. Time to stop doomscrolling on Instagram and play! ### 5/5 — Super addictive! *2026-06-10* Love this super compact puzzler. It's deceptively simple, with very high replayability. Hard to put it down! ### 5/5 — Boom! *2026-06-08* Great exercise for the brain! Lot of fun as well. ### 5/5 — Awesome game! *2026-06-08* Great mental workout of a game. I play this every morning when I wake up to get the mind going. Highly recommend! ### 5/5 — Puzzle game of our generation! *2026-06-07* Spark-7 is one of the most unique puzzle games I have ever played. The exact-match mechanic makes every move matter, and the chain reactions are very satisfying when you set up a big chain reaction. I like how there’s no timer, so you can actually think through your strategy instead of rushing. The game is challenging to learn but get surprisingly deep once you start planning around stones, discs, and future rows. If you enjoy puzzles games that reward careful thinking, the this is definitely worth trying!!! ### 5/5 — Super fun *2026-06-06* Once you get a hang of this, it’s a game you can’t put down. Recommend this! ### 5/5 — Sparkly *2026-06-05* Insanely addicting. The haptics and visuals are super cool, blending old-school vibes with a modern twist. The leaderboard is a perfect hook - it keeps you coming back for more. ### 5/5 — Super fun game *2026-06-03* The best game I’ve played since Dr Mario way back when! ### 5/5 — super fun *2026-06-03* Hard to master, but simple to learn. Excellent game for anyone who wants challenging & addictively fun. ### 5/5 — Spark it up! *2026-06-02* This is a fantastic lil mobile game. It looks like a simple matching game on the surface, but it’s much deeper than it first appears. There’s a surprising amount of strategy involved. It’s easy to pick up for a quick round on the train but it’s also engaging enough to keep you playing for longer sessions. There’s something about it that puts you in a good headspace. I also like how you can play the same round multiple times to work your way up the leaderboard for that particular game, it’s a fun extra social layer that definitely keeps me coming back! ### 5/5 — My newest addiction *2026-06-02* I love this game. Just the right amount of challenge and satisfaction my favorite way to wake up or wind down. Great little puzzler that offers endless fun in the leaderboards are motivating. ### 5/5 — Newest addiction *2026-06-01* I’m instantly hooked. This alternative to an original obsession Drop7 is far smoother and more enticing. The color scheme and graphics capture your interest immediately. Look forward to conquering the leaderboard on every level. Enjoy this game daily or more frequently! ### 5/5 — Super addictive game *2026-06-01* This is a really cool and challenging game. There’s so much strategy I’m still working out. Super fun to play and the music rocks so turn the volume up! ### 5/5 — Addictive app *2026-05-31* A fun way to waste time! ## Most critical reviews (10 lowest-rated) ### 5/5 — Relaxing and challenging at the same time *2026-07-18* It’s easy to get started and then you can learn more strategies. The layout is simple and the music is calming so the strategic focus is quite relaxing. ### 5/5 — Highly addictive *2026-07-09* Love the simplicity and fun! Great game. ### 5/5 — Addictive! *2026-07-09* What a fun game!! More challenging than it first appears. ### 5/5 — Expand Your Mind *2026-07-09* Very fun, highly addictive mobile app game. Play against friends and compete with others around the globe to see who you can beat! Challenging, competitive, and engaging ### 5/5 — Tetris meets Sudoku *2026-07-07* Tetris meets Sudoku. This mind-bending puzzle game is easy to learn but difficult to master. Compete globally, challenge your friends, or simply compete against yourself as you continually chase a higher score. Addictive, rewarding, and one of those rare games you’ll keep coming back to. ### 5/5 — I’ll just play one more… *2026-07-07* This game hits the sweet spot between relaxing and challenging. The rules are simple, but there’s real depth once you start planning several moves ahead. It scratches the same itch as the best classic puzzle games, but still feels fresh. ### 5/5 — Addicting! *2026-06-21* Once you start, you can’t stop. Love the game # count and personal leaderboard. Plus, the ads are not as much of a nuisance as they are on other gaming apps, which makes playing all the more addicting. ### 5/5 — Super addicting *2026-06-18* This game is really addicting. It took me a few minutes to realize stacks can go horizontally too and now I’m determined to get on the leaderboard ### 5/5 — Fun and sharp *2026-06-18* It’s a fast, fun, sharp and quite compulsive game- I found myself feeling the need to work harder to get smarter moves. And there is math. A good way to take a different type of phone break. ### 5/5 — Addicting Challenge *2026-06-17* This is my go-to for my commute! So fun. Also: how am I so bad at this game. Am I stupid? I hope not - because I am a scientist. Awesome game! --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-09-02.*