Comparison

Mental Math vs Kopfrechnen Trainer

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

Head to head
About

Mental Math

Enhance concentration and mental speed with daily mental math exercises. This app offers a minimalist approach to brain training, helping you prepare for deep work, studying, or important meetings. Track your progress and customize sessions to improve focus and cognitive clarity.

Highlights
  • Performance testing
  • Mental math training (add, subtract, multiply, divide)
  • Customizable exercises
  • Progress tracking
  • Minimalist design
  • Focus improvement
Features
Read full description

Train your brain. Sharpen focus. Improve mental speed. Modern life constantly fights for your attention. Notifications, multitasking, and digital noise make it harder to stay mentally sharp. Mental Math: Focus Trainer helps you rebuild focus using short daily mental math training sessions designed to improve concentration, processing speed, and mental clarity. This isn’t about becoming a math expert. It’s about using simple mental math exercises to activate your brain and enter a focused, high-performance state. Just 5 minutes of brain training can reset your attention and prepare you for deep work. HOW IT WORKS Think of it as a quick brain workout. A short session of mental math practice clears mental fog, activates focus, and strengthens your ability to concentrate. Use it: • before a deep work session • before studying • before an important meeting • as a daily brain training habit CORE FEATURES Performance Test (100 Questions) • measure mental speed and accuracy • track completion time • track accuracy • see questions per minute • get an overall performance score Mental Math Training Practice core arithmetic operations with multiple difficulty levels: • addition • subtraction • multiplication • division Choose the difficulty that matches your skill and gradually increase the challenge Custom Exercises Create your own mental math training: • choose operations (+ − × ÷) • choose difficulty levels • choose number of questions Progress Tracking • track mental speed • track accuracy • see progress across different difficulty levels • improve consistency over time Minimalist Design • no distractions • no noisy gamification • clean dark-mode interface WHY TRAIN MENTAL MATH? • improve concentration • boost mental processing speed • prepare your brain for deep work • build a daily focus ritual Reclaim your focus. Train your brain. One number at a time. Terms of Service: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://denyskt-hub.github.io/mental-math

About

Kopfrechnen Trainer

Features
Read full description

Eine kleine Kopfrechnen-App für Plus, Minus, Mal und Geteilt, genau so, wie es in Bayern unterrichtet wird. Die Aufgaben werden vorgelesen, nicht aufgeschrieben. Das Kind hört zu, rechnet im Kopf und tippt die Lösung ein. ALLE VIER GRUNDRECHENARTEN • Plus, Minus, Mal, Geteilt • Genau wie in der bayerischen Grundschule unterrichtet • Sieben Schwierigkeitsstufen • Strategien wie Verdoppeln, Nachbaraufgaben, Zehnerübergang KOPFRECHNEN, NICHT ABSCHREIBEN Die Aufgaben werden vorgelesen, wie eine Lehrerin in der Klasse. Das Kind hört, rechnet im Kopf und tippt nur die Lösung ein. So wird das Kopfrechnen ohne Hilfsmittel trainiert. ELTERNBEREICH • Fortschrittsverlauf für jedes Kind • Übungen pro Strategie und Stufe • Vollständig offline und ohne Konto KLEIN, RUHIG, FOKUSSIERT • Keine Werbung, keine Belohnungs-Spiele • Keine Datensammlung, keine Tracker • Alle Daten bleiben auf dem Gerät Funktioniert für Grundschüler ab 7 Jahren, und für Erwachsene als tägliches Gehirntraining. EINE APP VON KINDERN, FÜR KINDER Diese App wurde von zwei bayerischen Drittklässlern entworfen. Plus, Minus, Mal und Geteilt, genau wie sie es lernen wollten. Nutzungsbedingungen (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Mental Math4 screens
Kopfrechnen Trainer4 screens

Verdict

The call

The clearest difference is in-app purchases: Kopfrechnen Trainer at none against Mental Math's 2. Mental Math's advantage is update cadence (weekly vs every 2 weeks). On price, ads, 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. Mental Math sells 2 in-app purchases, starting at $3.99 per month. Kopfrechnen Trainer asks for nothing beyond the download.

UpkeepUpdate frequency

Mental Math ships an update weekly, Kopfrechnen Trainer every 2 weeks. The most recent releases landed on September 23, 2026 and September 14, 2026 respectively.

Scorecard2 real differences · 8 level
Mental Math versus Kopfrechnen Trainer: the parameters behind the verdict, then further details
ParameterMental MathKopfrechnen Trainer
PriceFreeFree
Rating3.5 (4 ratings) — better—
Positive reviews0.0% of reviews—
Number of ratings4 — better—
Update frequencyWeekly — betterEvery 2 weeks
AdsNoNo
In-app purchasesYesNo — better
MonetizationFreemium—
DevicesiPhone, iPadiPhone, iPad
Requires iOS18.017.0 — better
Further details — not scored
Size11 MB92 MB
Age rating4+4+
DeveloperDenys KotenkoAlban Nelaj

In-app purchases

2 purchases

Mental Math

Subscriptions2
  • Pro Monthly: Focus & Mental Math$3.991 Month
  • Pro Yearly: Focus & Mental Math7 Days trial$17.991 Year
None

Kopfrechnen Trainer

No in-app purchases

Questions

Is Mental Math free?
Mental Math is free to download, with in-app purchases available.
Is Kopfrechnen Trainer free?
Kopfrechnen Trainer is free to download, with no in-app purchases.
Do Mental Math or Kopfrechnen Trainer have ads?
Neither Mental Math nor Kopfrechnen Trainer shows ads.
Which is updated more often, Mental Math or Kopfrechnen Trainer?
Mental Math ships an update weekly, and Kopfrechnen Trainer every 2 weeks. Most recently, Mental Math was updated on September 23, 2026 and Kopfrechnen Trainer on September 14, 2026.

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