Sensorimotor Reactions vs N'Back Fan
Price, ratings, monetisation and update history for both apps, side by side β with what reviewers say about each.
Sensorimotor Reactions
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A set of tests for assessing sensorimotor reactions (simple visual-motor and hearing-motor reactions, choice reaction, reaction to a moving object, sense of pace, discrimination reaction). The application is intended for athletes, coaches and anyone who is interested in the features of the manifestation of sensorimotor reactions in various activities. Test 1. Evaluation of a simple sensorimotor reaction. This test allows you to determine the time of a simple visual-motor and auditory-motor reaction of the user. Test 2. Evaluation of the choice reaction. This test allows you to determine the reaction time of a user's choice. It is necessary to quickly select the appropriate color (the color of the central circle) from the five offered. Test 3. Evaluation of reaction to a moving object. This test allows you to determine the user's reaction time to a moving object. Press "Stop" at the moment when the center of the cross is on the vertical line. Test 4. Evaluation of the sense of pace. This test allows for high susceptibility to a given tempo. Read the given tempo and repeat it by touching the screen. Test 5. Evaluation of the distinction reaction (Go/No-go). This test allows you to evaluate the speed of recognition of a "false-true" visual signal. Methodology. When performing the test in the '12' mode (express mode), the top 10 values ββare counted. The obtained values ββare checked according to the instructions according to the normal distribution law (W - Shapiro-Wilk test). If the condition W > 0.84 is met, you will be prompted to save the result, if necessary, you must pass the test with the beginning. When performing a test in other modes, the mean value of the standard deviation are calculated, taking into account all values. WARNING: NOT FOR MEDICAL USE. The 'Sensorimotor Reactions' app does not diagnose diseases and does not make recommendations that relate to human health. If the accuracy of measuring sensorimotor responses is critical to your health, see your doctor. The sensorimotor response scores are for informational and educational purposes only. You can leave your suggestions and comments at: siosapplications@gmail.com
N'Back Fan
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Improve Sensory Memory & Working Memory using N'Back. Tap the number key matches the one from N steps earlier in the sequence. In 1'Back 1 task1: count & memorize 2 task2: count & memorize 3 __keyboard__: answer for task1 4 task3: count & memorize 5 __keyboard__: answer for task2 6 task4: count & memorize : In 2'Back 1 task1: count & memorize 2 task2: count & memorize 3 task3: count & memorize 4 __keyboard__: answer for task1 5 task4: count & memorize 6 __keyboard__: answer for task2 7 task5: count & memorize : [details] https://app.brain-workout.org/nbackfan-e/
Screenshots
Verdict
The clearest difference is ads: Sensorimotor Reactions at none against N'Back Fan's shown. Sensorimotor Reactions also leads on update cadence (monthly vs every 9 months). On price, in-app purchases, device support and iOS requirement there is nothing between them.
Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS
Both are free to download. Sensorimotor Reactions sells 1 one-off in-app purchase and N'Back Fan sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
Sensorimotor Reactions ships an update monthly, N'Back Fan every 9 months. The most recent releases landed on October 7, 2026 and October 25, 2026 respectively.
| Parameter | Sensorimotor Reactions | N'Back Fan |
|---|---|---|
| Price | Free | Free |
| Update frequency | Monthly β better | Every 9 months |
| Ads | No β better | Yes |
| In-app purchases | Yes | Yes |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 14.0 β better | 15.6 |
| Further details β not scored | ||
| Size | 2 MB | 7 MB |
| Age rating | 4+ | 4+ |
| Developer | Viacheslav Romanenko | Yasuyoshi Ota |
In-app purchases
Sensorimotor Reactions
- Data management$1.99
N'Back Fan
- remove ads and extend to 12$1.99









