Comparison

Concentration training. vs Void Card

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

Head to head
About

Concentration training.

Enhance your focus, productivity, and memory with targeted exercises. This app helps combat procrastination and improve logic and reflexes through engaging training modules.

Highlights
  • Improve focus and concentration
  • Boost productivity and overcome procrastination
  • Enhance logic and reflexes
  • Train memory recall
  • Engage with Schulte table exercises
  • Quick decision-making tasks
Features
Read full description

Are you looking to overcome procrastination and take your concentration, productivity, and focus to the next level? Dive into the "Concentration Training" app, your gateway to personal growth, motivation, and mastering concentration through targeted exercises. With consistent practice and training, you'll not only say goodbye to procrastination but also witness a significant boost in your productivity. Achieving focus on important tasks will become effortless, ensuring your work output is at its peak. This app is your trusted ally in enhancing focus for optimal productivity. Feeling distracted? Open the app and dive into a series of meticulously designed exercises. You'll quickly notice a shift in your focus and memory levels. Our exercises are made to not only refine your concentration but also to enhance your logic, memory, and reflexes, all essential for top-tier productivity. Here's what you can expect inside the "Concentration Training" app to increase your productivity: • Find the largest/smallest number, honing quick decision-making. • React promptly to color changes, enhancing reflexes. • Visual comparisons of figures, refining detailed focus. • Train memory recall with number and position exercises. • Identify matching images, sharpening focus and memory. • Engage with the Schulte table, a proven tool for concentration. • Swift direction swipes, reinforcing quick reflexes. • Memorize and arrange numbers, boosting memory and logical thinking. • ... and many more exercises designed to improve your focus! Whether you're a student, a professional, or someone aiming to boost day-to-day productivity, "Concentration Training" is your go-to app. It’s crafted with one goal in mind: to elevate your focus and productivity levels and help you achieve more in less time by using interesting exercises. Why "Concentration Training"? Combat Procrastination: Say goodbye to those unproductive hours and harness the power of focus. Elevate Performance: Notice a tangible difference in your tasks as your concentration and focus flourish. Revitalize Memory: Engage with exercises that boost memory recall, aiding you in managing tasks seamlessly. Experience the transformative benefits of tailored training and unlock unparalleled productivity, focus, and memory. Download "Concentration Training" and start your enhanced productivity journey today! Terms of use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

Void Card

Features
Read full description

把想记住的内容,做成随时可以翻看的卡片。 Void Card 是一个本地保存的自定义卡片工具:用标题和描述制作单词卡、记录灵感笔记,或准备聚会抽签和桌游事件。内容由你自己创建,再用卡组、颜色和搜索整理。 为卡片添加图片或视频背景,让照片、文字与回忆一起呈现。 主要功能: - 创建标题和描述卡片 - 添加图片或视频背景 - 使用颜色和卡组整理 - 搜索标题和描述 - 随机抽取卡片 - 语音朗读标题和描述 - 本地保存,无需登录

Screenshots

Concentration training.4 screens
Void Card4 screens

Verdict

The call

The clearest difference is in-app purchases: Void Card at none against Concentration training.'s 10. Void Card also leads on ads (none vs shown). Concentration training.'s advantage is update cadence (every 5 weeks vs every 3 months). On price, device support 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

Both are free to download. Concentration training. sells 10 in-app purchases, starting at $1.99 per month. Void Card asks for nothing beyond the download.

UpkeepUpdate frequency

Concentration training. ships an update every 5 weeks, Void Card every 3 months. The most recent releases landed on November 7, 2026 and November 5, 2026 respectively.

Scorecard3 real differences · 7 level
Concentration training. versus Void Card: the parameters behind the verdict, then further details
ParameterConcentration training.Void Card
PriceFreeFree
Rating4.8 (44 ratings) — better—
Positive reviews94.4% of reviews—
Number of ratings44 — better—
Update frequencyEvery 5 weeks — betterEvery 3 months
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPadiPhone, iPad
Requires iOS16.0 — better17.0
Further details — not scored
Size42 MB3 MB
Age rating4+4+
DeveloperOlena Gotsulyak星凌 陈

In-app purchases

10 purchases

Concentration training.

Subscriptions5
  • Monthly plan$1.991 Month
  • Monthly subscription$3.991 Month
  • Annual plan$5.991 Year
Show 2 more
  • Monthly subscription$7.991 Month
  • Monthly subscription$14.991 Month
One-time5
  • Full version$3.99
  • Full version$4.99
  • Premium access$7.99
Show 2 more
  • Full version$9.99
  • Full version$19.99
None

Void Card

No in-app purchases

Questions

Is Concentration training. free?
Concentration training. is free to download, with in-app purchases available.
Is Void Card free?
Void Card is free to download, with no in-app purchases.
Do Concentration training. or Void Card have ads?
Concentration training. shows ads; Void Card does not.
Which is updated more often, Concentration training. or Void Card?
Concentration training. ships an update every 5 weeks, and Void Card every 3 months. Most recently, Concentration training. was updated on November 7, 2026 and Void Card on November 5, 2026.

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