N'Back Butterfly vs ComboTangle
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
N'Back Butterfly
Enhance your cognitive abilities and combat forgetfulness with this application designed to improve working memory. It utilizes the scientifically recognized n-back task to train your brain's capacity for information recall and manipulation.
- Working memory improvement
- N-back task training
- Cognitive neuroscience assessment
- Continuous performance task
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Forget about forgetfulness! Improve your memory! Improve Working Memory using N'Back Butterfly. The n-back task is a continuous performance task that is commonly used as an assessment in cognitive neuroscience to measure a part of working memory. The n-back was introduced by Wayne Kirchner in 1958. [quoted from Wikipedia 2014-04-02]
ComboTangle
Engage in a challenging puzzle game with an immense number of possible boards. This brain teaser is designed to sharpen your focus and cognitive skills. Compete with friends to solve puzzles in fewer moves.
- Vast number of possible boards
- Sharpens mind and focus
- Competitive multiplayer mode
- Unique button operations to discover
- Support for user questions
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Challenge your mind by playing ComboTangle! There are over 47 quadrillions possible boards you can have. These brain teasers help keep your mind sharp and focused. Go against a friend and see who can win in less moves! -As of now, there is only one level: EasyTangle. Be on the lookout for more updates soon! -Every button has its own unique operation. Figure out what each button does, then try and solve a game of EasyTangle. -The support feature in the app allows you to ask any questions you have on the game, so don't be shy. -Think of EasyTangle like a Rubik's cube. Even Rubik's cubes are easy to solve once you have mastered them:)
Screenshots
Verdict
The clearest difference is ads: ComboTangle at none against N'Back Butterfly's shown. ComboTangle also leads on update cadence (monthly vs every 10 months) and monetization model (free vs ad-supported). On price, review sentiment, in-app purchases and device support 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. Neither carries in-app purchases, so what you see is what you pay.
N'Back Butterfly ships an update every 10 months, ComboTangle monthly. The most recent releases landed on November 1, 2026 and November 4, 2026 respectively.
| Parameter | N'Back Butterfly | ComboTangle |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (24 ratings) — better |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| Number of ratings | — | 24 — better |
| Update frequency | Every 10 months | Monthly — better |
| Ads | Yes | No — better |
| In-app purchases | No | No |
| Monetization | Ad-supported | Free — better |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 15.6 | 15.0 — better |
| Further details — not scored | ||
| Size | 9 MB | 7 MB |
| Age rating | 4+ | 4+ |
| Developer | Yasuyoshi Ota | Ranjeetha Seshadri |
Customer experience
N'Back Butterfly
ComboTangle
In-app purchases
N'Back Butterfly
No in-app purchases
ComboTangle
No in-app purchases
