Size test vs Memory Training
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Size test
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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.
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.
- Dozens of unique memory games
- Exercises for Visual, Working, and Spatial Memory
- Multiple difficulty levels
- Quick daily sessions
- Calm, minimal design
- Offline play
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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
Verdict
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
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.
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.
| Parameter | Size test | Memory Training |
|---|---|---|
| Price | $0.99 | Free — better |
| Rating | — | 4.8 (18 ratings) — better |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | — | 18 — better |
| Update frequency | Every 10 months | Monthly — better |
| Ads | No — better | Yes |
| In-app purchases | No — better | Yes |
| Monetization | — | Free with in-app purchases |
| Devices | iPad | iPhone, iPad — better |
| Requires iOS | 14.0 — better | 17.5 |
| Further details — not scored | ||
| Size | 1 MB | 49 MB |
| Age rating | 4+ | 4+ |
| Developer | Viacheslav Romanenko | Olena Gotsulyak |
In-app purchases
Size test
No in-app purchases
Memory Training
- Monthly plan$1.991 Month
- Monthly subscription$3.991 Month
- Annual plan$5.991 Year
Show 4 moreShow fewer
- Monthly subscription$7.991 Month
- Monthly subscription$14.991 Month
- Monthly subscription$29.991 Month
- Monthly subscription$49.991 Month
- Full Access #1$3.99
- Premium Access$7.99
- Full Access #2$9.99
Show 3 moreShow fewer
- Full Access #3$19.99
- Full Access #4$29.99
- Full Access #5$39.99
Questions
Is Size test free?
Is Memory Training free?
Do Size test or Memory Training have ads?
Which is updated more often, Size test or Memory Training?
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