Comparison

MindSpan Memory Booster vs TestSTMemory

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

Head to head
About

MindSpan Memory Booster

Train your working memory with a simple yet challenging game. Observe moving shapes and recall their details like color and pattern to progress. Improve your cognitive skills essential for learning and focus.

Highlights
  • Observe and recall moving geometric shapes
  • Identify shape, color, and pattern
  • Increasing difficulty with speed and complexity
  • Trains working memory and cognitive skills
  • Focuses on fluid intelligence and learning ability
Features
Read full description

Watch. Remember. Answer. MindSpan trains the most important cognitive skill you have: working memory. A shape moves across the screen. You watch. Then you answer: what was it? What color? What pattern? Sounds simple. It isn't. HOW IT WORKS Each round, a geometric shape — triangle, star, polygon, moon — travels along a path. Your job: hold it in mind, then identify it from a set of options. As you improve, shapes move faster, paths grow more complex, and the distractors look more alike. CHALLENGE LEVELS Between the memory rounds, brain-teasers change the pace — mental math, logic and odd-one-out puzzles, lateral-thinking riddles, and number patterns. The question stays on screen; you reason it through. Memory and reasoning, woven together, so no two sessions feel the same. WHAT YOU'RE TRAINING Working memory is the brain's scratchpad — the ability to hold and manipulate information in real time. It underlies reading comprehension, mental arithmetic, decision-making, and sustained focus. Research consistently links working memory capacity to fluid intelligence and learning ability.

About

TestSTMemory

Features
Read full description

* The app allows you to assess the level of short-term visual memory. The algorithm of the program was as follows: the test participant had to complete five stages, each consisting of ten attempts. At the first stage, during the first five attempts, the participant had to react to a single monochrome signal, memorize its location, and click on the corresponding circle. In the next five attempts, they had to respond to a colored signal. At each subsequent stage, the number of simultaneously appearing signals increased by one. By the fifth stage, the participant needed to memorize the locations of five signals and click on the corresponding circles. During the test, participants had to respond quickly and accurately to visual stimuli. The app's display showed the number of taps already made and how many remained (for stages 3, 4, and 5). To objectively assess short-term visual memory, the percentage of errors made during the test was calculated. A mistake was defined as clicking on a circle that did not correspond to the correct one. At the end of the test, the program prompted the user to enter information about the test participant and displayed indicators characterizing the measured quality." * Model characteristics could be generated based on the measurement results. To do this, the user needed to navigate to the 'Data' section, click 'Choose', select the desired measurements, and then click 'Model'. On the next screen, the main characteristics of the selected measurements were displayed. If the characteristics were satisfactory, the user could click 'Create model'. Created models were accessible in the settings under 'Models based on measurements'. To compare measurement results with a model, the user had to go to the 'Data' section, select a measurement, click 'Summary', and on the next screen, select 'Assessment'. As an example, the model characteristics of martial artists with high sports qualifications ('The model of qualified martial artists') were set by default." * Additionally, in the settings, users could save a backup of their measurements in JSON format ('Save backup'), import measurements from another device ('Add backup'), replace existing measurements with new ones ('Replace backup'), or delete all data ('Delete all data'). * The “Short-Term Visual Memory” app includes a machine learning model (Core ML) that automatically determines the level of short-term visual memory efficiency based on the results of a 5-stage test. The model analyses accuracy and attempt duration at stages 3, 4, and 5, because these stages involve higher cognitive load and better differentiate athletes by their ability to retain and reproduce visual stimuli. The model was developed using test results from combat sports athletes (n = 338) obtained under the following standardised task settings: number of cells — 77; visual stimulus duration — 300 ms. The result is presented as a short-term visual memory efficiency level (High / Medium / Low) and an integral STM Efficiency Index. This allows the app to be used for regular monitoring of athletes’ cognitive and psychophysiological functions, tracking individual changes over time, and selecting training tasks according to the athlete’s current condition. All calculations are performed locally on the device, without transmitting personal data to a server. Test results should be interpreted considering the athlete’s level of preparedness, testing conditions, and repeated-measurement dynamics. * The app is not a medical device and is not intended to provide medical diagnoses.

Screenshots

MindSpan Memory Booster4 screens

Verdict

The call

The clearest difference is price: MindSpan Memory Booster at Free against TestSTMemory's $2.99. MindSpan Memory Booster also leads on update cadence (fortnightly vs every 13 months) and device support (3 vs 1). On ads, in-app purchases 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

MindSpan Memory Booster is free to download; TestSTMemory costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

MindSpan Memory Booster ships an update fortnightly, TestSTMemory every 13 months. The most recent releases landed on August 15, 2026 and September 19, 2026 respectively.

Scorecard3 real differences · 5 level
MindSpan Memory Booster versus TestSTMemory: the parameters behind the verdict, then further details
ParameterMindSpan Memory BoosterTestSTMemory
PriceFree — better$2.99
Positive reviews0.0% of reviews—
Update frequencyFortnightly — betterEvery 13 months
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPad, iPod — betteriPad
Requires iOS15.614.0 — better
Further details — not scored
Size5 MB2 MB
Age rating4+4+
DeveloperBothina ElzoobiViacheslav Romanenko

In-app purchases

None

MindSpan Memory Booster

No in-app purchases

None

TestSTMemory

No in-app purchases

Questions

Is MindSpan Memory Booster free?
MindSpan Memory Booster is free to download, with no in-app purchases.
Is TestSTMemory free?
TestSTMemory costs $2.99, with no in-app purchases.
Do MindSpan Memory Booster or TestSTMemory have ads?
Neither MindSpan Memory Booster nor TestSTMemory shows ads.
Which is updated more often, MindSpan Memory Booster or TestSTMemory?
MindSpan Memory Booster ships an update fortnightly, and TestSTMemory every 13 months. Most recently, MindSpan Memory Booster was updated on August 15, 2026 and TestSTMemory on September 19, 2026.

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