Comparison

Size test vs Memory Training

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

Head to head
About

Size test

Read full description

This app is designed to assess how quickly the user reacts to changes in the size of an object. Users can select one of the test modes: 'Increasing the object', 'Decreasing the object', 'Decreasing or increasing the object'. When the user observes a change in the size of an object, the user must break contact with the device screen. The recorded test time reflects the user's ability to perceive the change in object size. Once the test is completed, the results are tested for normality of distribution (Shapiro-Wilk test). If the values deviate from the law of normal distribution, the program analyzes the data sets, removes the worst value and adds an additional attempt. In the program settings you can select the number of attempts - from 10 to 30. The choice of the number of attempts depends on the performer's age and professional activity. In addition, in the program settings the user can save a backup copy of his measurements in JSON format anywhere (Save backup), add measurements from another device (Add backup), replace already saved measurements with new ones (Replace backup) or delete all data (Delete all data). This application is intended to be used by athletes and teachers in specialized educational institutions for scientific research.

About

Memory Training

Enhance your cognitive abilities with daily, effective memory exercises. Improve focus, clarity, and mental sharpness through engaging games designed to keep your brain active and memory strong. Suitable for all ages, it offers quick sessions with no distractions.

Highlights
  • Dozens of unique memory games
  • Exercises for Visual, Working, and Spatial Memory
  • Multiple difficulty levels
  • Quick daily sessions
  • Calm, minimal design
  • Offline play
Features
Read full description

Many people notice improved memory and focus within the first week. Train your memory with short, effective daily exercises designed to fit into any routine. Simple, focused, and easy to follow. This app helps you stay mentally fit with memory exercises for daily use. Whether you’re working, studying, or just want better focus and clarity, you’ll notice the difference after a few sessions. No complicated setup. No distractions. Just simple, engaging tasks to keep your brain active and your memory strong. What You’ll Get: • Dozens of unique memory games - from recalling emoji grids to solving fast number patterns • Exercises grouped into 3 skill zones: - Visual Memory - Working Memory - Sequence & Spatial Memory • Multiple difficulty levels - so you can start easy and level up • Quick sessions that take just a few minutes a day • A calm, minimal design to help you focus Improve Your: • Memory and recall • Concentration and attention • Thinking speed and accuracy • Mental clarity and productivity Train anywhere — no internet needed. Progress is saved automatically so you can always see how far you've come. No pressure. No stress. One short session a day. Real results. Start today. Terms of use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Memory Training4 screens

Verdict

The call

The clearest difference is price: Memory Training at Free against Size test's $0.99. Memory Training also leads on update cadence (monthly vs every 10 months). Size test's advantage is in-app purchases (none vs 13) and ads (none vs shown). On 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

CostPrice · In-app purchases · Ads · Monetization

Memory Training is free to download; Size test costs $0.99 up front. Memory Training sells 13 in-app purchases, starting at $1.99 per month. Size test asks for nothing beyond the download.

UpkeepUpdate frequency

Size test ships an update every 10 months, Memory Training monthly. The most recent releases landed on September 30, 2026 and October 1, 2026 respectively.

Scorecard5 real differences · 5 level
Size test versus Memory Training: the parameters behind the verdict, then further details
ParameterSize testMemory Training
Price$0.99Free — better
Rating—4.8 (18 ratings) — better
Positive reviews—100.0% of reviews
Number of ratings—18 — better
Update frequencyEvery 10 monthsMonthly — better
AdsNo — betterYes
In-app purchasesNo — betterYes
Monetization—Free with in-app purchases
DevicesiPadiPhone, iPad — better
Requires iOS14.0 — better17.5
Further details — not scored
Size1 MB49 MB
Age rating4+4+
DeveloperViacheslav RomanenkoOlena Gotsulyak

In-app purchases

None

Size test

No in-app purchases

13 purchases

Memory Training

Subscriptions7
  • Monthly plan$1.991 Month
  • Monthly subscription$3.991 Month
  • Annual plan$5.991 Year
Show 4 more
  • Monthly subscription$7.991 Month
  • Monthly subscription$14.991 Month
  • Monthly subscription$29.991 Month
  • Monthly subscription$49.991 Month
One-time6
  • Full Access #1$3.99
  • Premium Access$7.99
  • Full Access #2$9.99
Show 3 more
  • Full Access #3$19.99
  • Full Access #4$29.99
  • Full Access #5$39.99

Questions

Is Size test free?
Size test costs $0.99, with no in-app purchases.
Is Memory Training free?
Memory Training is free to download, with in-app purchases available.
Do Size test or Memory Training have ads?
Memory Training shows ads; Size test does not.
Which is updated more often, Size test or Memory Training?
Size test ships an update every 10 months, and Memory Training monthly. Most recently, Size test was updated on September 30, 2026 and Memory Training on October 1, 2026.

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