N'Back Butterfly vs ArithmeticWorkOut
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]
ArithmeticWorkOut
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App to record your baby's life Easy to input, easy to check your baby's life! 1. register routine tasks 2. input time and tasks 3. Check the history What I want to record about my baby. ・Waking up, sleeping, feeding, weaning, etc. ・Milk, feeding, baby food, etc. ・Timing of pee, poop, etc. You can change the contents freely, so please try it out in your own way!
Screenshots
Verdict
The clearest difference is iOS requirement: ArithmeticWorkOut at 13.0 against N'Back Butterfly's 15.6. On price, update cadence, ads and in-app purchases 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, ArithmeticWorkOut every 12 months. The most recent releases landed on November 1, 2026 and November 7, 2026 respectively.
| Parameter | N'Back Butterfly | ArithmeticWorkOut |
|---|---|---|
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| Update frequency | Every 10 months — better | Every 12 months |
| Ads | Yes | Yes |
| In-app purchases | No | No |
| Monetization | Ad-supported | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 15.6 | 13.0 — better |
| Further details — not scored | ||
| Size | 9 MB | 67 MB |
| Age rating | 4+ | 4+ |
| Developer | Yasuyoshi Ota | hideaki fukumura |
In-app purchases
N'Back Butterfly
No in-app purchases
ArithmeticWorkOut
No in-app purchases
Questions
Is N'Back Butterfly free?
Is ArithmeticWorkOut free?
Do N'Back Butterfly or ArithmeticWorkOut have ads?
Which is updated more often, N'Back Butterfly or ArithmeticWorkOut?
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