Comparison

GlowGrid 2 vs Sumaddle

Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.

Head to head
About

GlowGrid 2

A strategic tile-matching puzzle game with an 80s arcade aesthetic. Place neon tiles, match groups to score, and plan moves carefully to avoid running out of space. Unlock new tiles and power-ups as you progress through infinite gameplay.

Highlights
  • Neon pixel art and synth soundtrack
  • Strategic tile placement
  • Match groups of four or more tiles
  • Score multipliers and combo amplification
  • Unlock new tiles and power-ups
  • Infinite gameplay with no timer
  • Global scoreboard
Features
Read full description

A new strategic tile-matching game with an old school 80s arcade feel. From the award-winning independent studio behind I Love Hue comes an entirely new take on the classic tile-matching game, with neon pixel art and a synth soundtrack. Place neon-coloured tiles on on the board. Match groups of four tiles to clear them, or match larger groups to multiply your score. Consecutive matches amplify your scoring power! As you progress through the levels you'll have to think more and more carefully to avoid running out of space. But you'll also unlock new tiles, power-ups and bonus pieces to help you master the GlowGrid! IMMERSIVE With no timer and featuring beautiful arcade-influenced artwork and an original synth soundtrack, lose yourself in the soft neon glow of the game. STRATEGIC Plan your moves carefully to build up massive scoring combos! INFINITE The game lasts as long as you can keep spaces available on the board. And with an automatic save function, you can drop in and out of game play as you wish! FEATURES: * A retro aesthetic influenced by iconic 80s arcade games * An original synth soundscape inspired by the classic Yamaha DX7 synthesizer * Beautiful pixel art with a rich neon palette * A clever twist on the tile-matching genre which encourages long-term gameplay and strategic thinking * A global scoreboard - compare your top scores to players from all over the world * Infinite gameplay with no timer - the game will last as long as you can!

About

Sumaddle

This logic puzzle game transforms pencil-and-paper challenges into interactive brain teasers. Fit number combinations to clues using pure logic, with no mental arithmetic required. Enjoy over 150 free puzzles of varying difficulty, with built-in help and offline play.

Highlights
  • Interactive logic puzzles
  • Number combination fitting
  • Pure logic solving
  • Built-in help and mistake correction
  • Over 150 free puzzles
  • Offline play
  • Ad-free experience
Features
Read full description

• “Brilliant puzzle game”, UK App Store review Apr 2025 • “Best Puzzle Game I’ve Ever Played”, US App Store review Jan 2025 • “The ONLY iOS game I've never gotten tired of”, Reddit review Apr 2024 This type of logical puzzle was first seen in the Japan Puzzle Championship 2006 and is sometimes known as Doppelblock, or Smashed Sums. When played with pencil and paper, these puzzles can be hard work to solve. Sumaddle changes that by adding the essential element of interaction. This transforms the puzzles into intriguing brain teasers that unfold before your eyes. Each puzzle has a unique solution. Finding the solution involves fitting the number combinations to the clues. The app makes it easy to view the possible combinations, you don’t need to do any sums in your head. Instead, you can focus on using logic to narrow down the combinations and find a fitting arrangement. Some reasons why you will enjoy playing Sumaddle: • puzzles range in size and difficulty from small and simple to large and mind-blowing • more than 150 puzzles are included for free • all puzzles can be solved with pure logic, no mental arithmetic required • the sophisticated built-in help can explain the logical reasoning at each step and also fix mistakes if you go wrong • the built-in help is completely free, use it as much as you like • works offline (great for long journeys) • a high standard of accessibility, including comprehensive support for VoiceOver • ad-free play - there are absolutely no ads! IGRS age rating (Indonesia Game Rating System): 3+ Designed and developed in Winterthur, Switzerland

Screenshots

GlowGrid 24 screens
Sumaddle3 screens

Verdict

The call

The clearest difference is review sentiment: Sumaddle at 95% against GlowGrid 2's 67%. Sumaddle also leads on update cadence (every 3 weeks vs every 2 months) and rating (4.9 vs 4.7). GlowGrid 2's advantage is iOS requirement (8.0 vs 16.0). On price, ads, in-app purchases and monetization model there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. GlowGrid 2 sells 1 one-off in-app purchase and Sumaddle sells 15 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Sumaddle holds the better App Store score, 4.9 against 4.7. That said, the two scores are not equally well evidenced: Sumaddle has 767 ratings behind it against 151, so its average is the more settled of the two. Written reviews point the same way: 67% of GlowGrid 2's written reviews are positive against 95% of Sumaddle's.

UpkeepUpdate frequency

GlowGrid 2 ships an update every 2 months, Sumaddle every 3 weeks. The most recent releases landed on September 28, 2026 and September 25, 2026 respectively.

Scorecard5 real differences · 5 level
GlowGrid 2 versus Sumaddle: the parameters behind the verdict, then further details
ParameterGlowGrid 2Sumaddle
PriceFreeFree
Rating4.7 (151 ratings)4.9 (767 ratings) — better
Positive reviews66.7% of reviews94.9% of reviews — better
Number of ratings151767 — better
Update frequencyEvery 2 monthsEvery 3 weeks — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS8.0 — better16.0
Further details — not scored
Size41 MB30 MB
Age rating4+4+
DeveloperZut Games LtdJonathan Buchanan

Customer experience

GlowGrid 2

All ratings151 ratings
Positive95.4%
Neutral3.3%
Negative1.3%
Written reviews12 reviews
Positive66.7%
Neutral25.0%
Negative8.3%

Sumaddle

All ratings767 ratings
Positive98.3%
Neutral0.7%
Negative1.0%
Written reviews98 reviews
Positive94.9%
Neutral1.0%
Negative4.1%

Bugs and requests

GlowGrid 2

Not enough reviews yet to summarise bugs or requests.

Sumaddle

Reported bugs

2 issues
  • Losing progress when minimizing the app
  • Inconsistent difficulty ratings

Requested features

4 requests
  • Ability to selectively pencil in notes
  • More difficult puzzle options
  • Synced progress across devices
  • Detailed statistics and leaderboard

In-app purchases

1 purchases

GlowGrid 2

One-time1
  • Remove Ads$2.99
15 purchases

Sumaddle

One-time15
  • Quirky, Pack 5$0.99
  • Very Difficult Puzzles$0.99
  • Quirky, Pack 1$0.99
Show 12 more
  • Premium 9x9 Puzzles, Pack 1$0.99
  • Crafty, Pack 1$0.99
  • Crafty, Pack 2$0.99
  • Crafty, Pack 3$0.99
  • Sneaky, Pack 1$0.99
  • Sneaky, Pack 2$0.99
  • Sneaky, Pack 3$0.99
  • Tricky, Pack 1$0.99
  • Tricky, Pack 2$0.99
  • Tricky, Pack 3$0.99
  • Assorted Puzzles$0.99
  • Puzzle Generator$9.99

Questions

Is GlowGrid 2 free?
GlowGrid 2 is free to download, with in-app purchases available.
Is Sumaddle free?
Sumaddle is free to download, with in-app purchases available.
Which has better reviews, GlowGrid 2 or Sumaddle?
Sumaddle is rated higher. GlowGrid 2 averages 4.7 out of 5 from 151 ratings, while Sumaddle averages 4.9 from 767 ratings.
Do GlowGrid 2 or Sumaddle have ads?
Neither GlowGrid 2 nor Sumaddle shows ads.
Which is updated more often, GlowGrid 2 or Sumaddle?
GlowGrid 2 ships an update every 2 months, and Sumaddle every 3 weeks. Most recently, GlowGrid 2 was updated on September 28, 2026 and Sumaddle on September 25, 2026.

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