Sumaddle vs Akari
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
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.
- Interactive logic puzzles
- Number combination fitting
- Pure logic solving
- Built-in help and mistake correction
- Over 150 free puzzles
- Offline play
- Ad-free experience
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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 transforming the puzzles into interactive 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 are able to focus on using logic to narrow down the combinations and find a fitting arrangement. The puzzles come in a range of sizes and difficulties, to suit all levels of skill and puzzling purposes. Choose a small puzzle to idle away a minute or two while waiting in a queue, or a big puzzle to give your brain some exercise during a coffee break! Some reasons why you will enjoy playing Sumaddle: • 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
Akari
Place light bulbs on a grid to illuminate every square without bulbs shining on each other. Master hundreds of addictive logic puzzles with daily and weekly challenges.
- Daily puzzle challenges
- Weekly challenges
- Multiple difficulty levels
- Logic puzzle packs
- Solving strategy guide
- Player statistics and progress tracking
- Offline play
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Puzzle Your Way to Enlightenment! Ready for a mental workout that’s both challenging and fun? Akari, also known as Light Up, is here to brighten your day! Put on your thinking cap and illuminate your way through hundreds of addictive puzzles. This isn’t just a game; it’s a light-bulb moment waiting to happen. How to Play: Place light bulbs on the grid to illuminate every square. But watch out! Bulbs can't shine on each other, and you’ll need to use your wits to avoid lighting up the same area twice. Can you master the art of illumination and solve them all? Features: - Everyday I release a new number game (daily puzzle challenge) - Achievements & Leaderboards: Show off your brilliance and climb to the top of the global leaderboard. - There is also a weekly challenge for geniuses - There are 5 different difficulties (easy to diabolical) - Packs with hand-selected logic puzzle (e.g. for beginners) - Guide with solving strategies - Profile with stats about your skill level & progress Why You’ll Love Akari: - Perfect blend of strategy and logic. - No time limits, just pure puzzling pleasure. - Suitable for all ages. - Play offline anytime, anywhere. Whether you’re a seasoned puzzle master or a curious newcomer, Akari is the perfect way to light up your free time. Download now and start your journey to becoming the ultimate puzzle luminary! Privacy policy: https://guriddo.app/akari/legal/privacy Terms of use: https://guriddo.app/akari/legal/tos
Screenshots
Verdict
The clearest difference is review sentiment: Sumaddle at 95% against Akari's 33%. Sumaddle also leads on ads (none vs shown) and rating (4.9 vs 4.6). Akari's advantage is iOS requirement (15.6 vs 17.0). On price, update cadence, 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
Both are free to download. Sumaddle sells 10 one-off in-app purchases and Akari sells 10 in-app purchases, starting at $2.49 per month. Whichever you choose, the download price is not the number that matters.
Sumaddle holds the better App Store score, 4.9 against 4.6. That said, the two scores are not equally well evidenced: Sumaddle has 769 ratings behind it against 30, so its average is the more settled of the two. Written reviews point the same way: 95% of Sumaddle's written reviews are positive against 33% of Akari's.
Both ship on a similar rhythm, roughly every 3 weeks. The most recent releases landed on November 3, 2026 and November 4, 2026 respectively.
| Parameter | Sumaddle | Akari |
|---|---|---|
| Price | Free | Free |
| Rating | 4.9 (769 ratings) — better | 4.6 (30 ratings) |
| Positive reviews | 94.9% of reviews — better | 33.3% of reviews |
| Number of ratings | 769 — better | 30 |
| Update frequency | Every 3 weeks | Every 3 weeks |
| Ads | No — better | Yes |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 17.0 | 15.6 — better |
| Further details — not scored | ||
| Size | 31 MB | 73 MB |
| Age rating | 4+ | 4+ |
| Developer | Jonathan Buchanan | Simon Schuster |
Customer experience
Sumaddle
Akari
Bugs and 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
Akari
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Sumaddle
- Crafty, Pack 1$0.99
- Crafty, Pack 2$0.99
- Crafty, Pack 3$0.99
Show 7 moreShow fewer
- 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
- Puzzle Generator$9.99
Akari
- Supporter (Monthly)$2.491 Month
- Supporter (Annual)$14.991 Year
- Beginner Pack 1 (5x5)$0.99
- Beginner Pack 1 (10x10)$0.99
- Beginner Pack 1 (7x7)$0.99
Show 5 moreShow fewer
- Beginner Pack 1 (14x14)$0.99
- Advanced Pack 1 (5x5)$1.99
- Genius Pack 1 (25x25)$3.49
- Wizard Pack 1 (30x30)$3.49
- Wizard Pack 1 (40x50)$3.49









