Comparison

N'Back Butterfly vs Sequence Cubes

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

Head to head

Sequence Memory Game

About

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.

Highlights

Working memory improvement
N-back task training
Cognitive neuroscience assessment
Continuous performance task

Features

Read full description

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]

About

Sequence Cubes

Features

Read full description

Sequence Cubes is a new, simple, yet challenging memory game. Simply pay attention and memorize the flashing cubes and repeat the same sequence. If you are right you can watch yourself climb the leaderboard and collect achievements, thanks to the integration with Game Center. If you are wrong, watch in disappoint as all the cubes simply fall away, forcing you to start all over again. Sequence Cubes will help train your brain. So what are you waiting for… start training today! Key Features: - No Ads... ever! - iPhone/iPad - Game Center Integration  - CloudKit Integration - Earn or purchase credits to all you to rewatch/retry sequences

Screenshots

N'Back Butterfly2 screens

Sequence Cubes4 screens

Verdict

The call

The clearest difference is in-app purchases: N'Back Butterfly at none against Sequence Cubes's 3. Sequence Cubes's advantage is ads (none vs shown) and update cadence (every 2 months vs every 10 months). On price, device support and iOS requirement 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. Sequence Cubes sells 3 one-off in-app purchases. N'Back Butterfly asks for nothing beyond the download.

UpkeepUpdate frequency

N'Back Butterfly ships an update every 10 months, Sequence Cubes every 2 months. The most recent releases landed on August 31, 2026 and September 9, 2026 respectively.

Scorecard3 real differences · 5 level

N'Back Butterfly versus Sequence Cubes: the parameters behind the verdict, then further details
Parameter	N'Back Butterfly	Sequence Cubes
Price	Free	Free
Positive reviews	100.0% of reviews	—
Update frequency	Every 10 months	Every 2 months — better
Ads	Yes	No — better
In-app purchases	No — better	Yes
Monetization	Ad-supported	—
Devices	iPhone, iPad, iPod — better	iPhone, iPad
Requires iOS	15.6 — better	16.0
Further details — not scored
Size	9 MB	27 MB
Age rating	4+	4+
Developer	Yasuyoshi Ota	Steven Tulissi

In-app purchases

None

N'Back Butterfly

No in-app purchases

3 purchases

Sequence Cubes

One-time3

500 Credits$1.99
2,500 Credits$3.99
10,000 Credits$6.99

Questions

Is N'Back Butterfly free?

N'Back Butterfly is free to download, with no in-app purchases.

Is Sequence Cubes free?

Sequence Cubes is free to download, with in-app purchases available.

Do N'Back Butterfly or Sequence Cubes have ads?

N'Back Butterfly shows ads; Sequence Cubes does not.

Which is updated more often, N'Back Butterfly or Sequence Cubes?

N'Back Butterfly ships an update every 10 months, and Sequence Cubes every 2 months. Most recently, N'Back Butterfly was updated on August 31, 2026 and Sequence Cubes on September 9, 2026.