MathApex vs Kopfrechnen Trainer
Price, ratings, monetisation and update history for both apps, side by side ā with what reviewers say about each.
MathApex
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Practice math with your own owl: MathApex takes grades 1 to 4 through addition and subtraction, times tables, mental math, fractions, word problems and money math in the Owl Market. Every right answer helps the owl grow. New: 1,000 worksheets to solve in the app, with a grade and corrections. No ads; MathApex Pro stays a one-time purchase, and the worksheets are a separate subscription. NEW: WORKSHEETS ⢠1,000 worksheets on 100 topics for grades 1ā4: numbers, addition and subtraction, times tables, column arithmetic, word problems, measures, geometry ⢠Solve right on the sheet: write with your finger or tap, every box is checked ⢠Practice with instant feedback, or take a test with a grade and correct the mistakes afterwards ⢠From a photo: photograph a worksheet from school and solve it in the app ⢠Parents see every test result with grade and time ⢠Separate subscription, monthly or yearly: try 7 days free, or one month with MathApex Pro THE OWL MARKET ⢠Take the owl to the market: shop from a list, pay at the till, check the change ⢠Round prices in grades 1 and 2, exact prices with small coins in grades 3 and 4 ⢠Sellers with voices of their own; your shopping goes to the pantry YOUR OWL ⢠The owl grows with every right answer ⢠Wardrobe and shop with more than 90 items ⢠Chests full of diamonds and daily rewards ⢠Weekly rankings with Game Center ā parents switch them on ⢠Math duel with friends: everyone gets the same 20 questions CREATE YOUR OWN WORKSHEETS ⢠Create unlimited math problems ā directly in the app ⢠No printing costs, no paper ā eco-friendly learning ⢠Automatic correction with instant feedback ⢠Various problem types: Standard, Fill-in-the-blank, Number Pyramids, Greater-Less-Than Comparison, Calculation Houses, Written Multiplication COMPREHENSIVE MATH EXERCISES ⢠Times Tables (Multiplication Tables) Trainer for Grade 2-4 ⢠Addition and Subtraction for Grade 1ā4 ⢠Multiplication and Division with various difficulty levels ⢠Mental Math ā practice quick calculations ⢠Perfect Run ā a fast challenge mode with score and speed ⢠Cross Math, Broken Equation and Equation Builder for creative problem solving ⢠Equivalent Fractions and fraction comparison practice ⢠Word Problems for real-life Grade 3-4 practice ⢠Number Pyramids and Pyramid problems ⢠Comparison exercises (greater than, less than, equal) ⢠Written Multiplication step by step ⢠Calculation Houses with different operations DETAILED STATISTICS ⢠Progress tracking for each learning area ⢠Accuracy statistics and attempt history ⢠Point system with rewards ⢠Parent Dashboard for progress monitoring SAFETY & PRIVACY ⢠PIN-protected parental controls ⢠Ad-free ā no ads, no distractions ⢠Privacy has highest priority ⢠Game Center only with a parent's approval FOR PARENTS: ⢠Create and customize your own math worksheets ⢠Set difficulty levels and number ranges ⢠Monitor learning progress and statistics ⢠Set point rewards for motivation ⢠Perfect for tutoring and homeschooling ⢠MathApex Pro is a one-time purchase, not a subscription; the Apex Pass lasts one month and does not renew ⢠All features PIN-protected Perfect for elementary school students who want to learn math, practice times tables, improve mental math or become more confident with fractions and word problems. Ideal for homeschooling, tutoring, test preparation or extra practice at home. Download MathApex now and start your modern math learning journey! SUBSCRIPTION DETAILS The Worksheets subscription renews automatically for another month or year unless it is cancelled at least 24 hours before the end of the current period. Payment is charged to your Apple Account. You can cancel any time in Settings > your name > Subscriptions. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://mathapex.app/privacy-policy.html
Kopfrechnen Trainer
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Kopfrechnen Trainer is a German-language app. Every problem is read aloud in German and is not shown on screen while the child works on it. There is no English version, no English audio and no text mode. The app suits children who do their maths in German: at a Grundschule, Volksschule or Primarschule in Germany, Austria or Switzerland, at a German-language school abroad, or in a bilingual family that wants German maths practice at home. Your child needs to understand spoken German numbers and short German sentences to use it. WHY THE PROBLEMS ARE SPOKEN Teachers in German-speaking primary schools dictate mental-arithmetic problems and the children write down only the answer. This app does the same. The child hears "sieben mal acht", holds the numbers in their head, works it out and types the result. Nothing to read off the screen, nothing to copy. The audio can be replayed as often as needed. If the child is stuck, a hint names the strategy, and the solution can be shown. WHAT YOUR CHILD PRACTISES ⢠Addition, subtraction, multiplication and division (plus, minus, mal, geteilt) ⢠Numbers up to 20, 100, 1,000 and 10,000 ⢠The times tables (Einmaleins) and multiplication beyond them ⢠Division with remainder and short word problems (Sachaufgaben), also spoken in German ⢠Seven levels, from the end of Klasse 1 to Klasse 4 in the German school system, roughly ages 7 to 10 ⢠Over 2,400 problems, each with a strategy hint and a solution STRATEGIES, NAMED AS IN SCHOOL The hints use the strategy names children hear in Bavarian primary schools: Verdoppeln, Tauschaufgaben, Hilfsaufgaben, Kernaufgaben, Umkehraufgaben, Stellenweise rechnen, Dividieren mit Rest and more. The levels and strategies are our own alignment with the Bavarian LehrplanPLUS for primary mathematics. This is not an official review or endorsement by any education authority. FOR PARENTS ⢠Several child profiles on one device, useful for siblings ⢠Parent area with progress per child, per level and per strategy, behind a simple parental gate ⢠CSV export and import of results ⢠Works completely offline, no account, no sign-up ⢠No advertising, no tracking, no analytics, no cloud: all data stays on the device PRICE The first 50 problems are free. After that an optional auto-renewing yearly subscription (Premium) unlocks unlimited practice, with Family Sharing for the devices in your Apple Family. The price is shown in the app and on this page. WHO MADE IT Kopfrechnen Trainer was designed by two Bavarian primary-school brothers together with their parents, starting from the mental-arithmetic dictation they knew from their own classroom. It is a small, quiet app: no reward games, no advertising, just listening and calculating. Please note once more: the interface, the audio and the word problems are all in German. If you are looking for an English-language maths app, this is not it. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is iOS requirement: MathApex at 15.1 against Kopfrechnen Trainer's 17.0. On price, update cadence, ads and in-app purchases there is nothing between them.
Scored on Price Ā· Rating Ā· Positive reviews Ā· Number of ratings Ā· Update frequency Ā· Ads Ā· In-app purchases Ā· Monetization Ā· Best chart rank Ā· Devices Ā· Requires iOS
Both are free to download. MathApex sells 6 in-app purchases, starting at $3.99 per month and Kopfrechnen Trainer sells 1 in-app purchase, starting at $9.00 per year. Whichever you choose, the download price is not the number that matters.
MathApex ships an update every 3 weeks, Kopfrechnen Trainer every 2 weeks. The most recent releases landed on November 12, 2026 and November 9, 2026 respectively.
| Parameter | MathApex | Kopfrechnen Trainer |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 3 weeks | Every 2 weeks ā better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Devices | iPhone, iPad, iPod ā better | iPhone, iPad |
| Requires iOS | 15.1 ā better | 17.0 |
| Further details ā not scored | ||
| Size | 72 MB | 92 MB |
| Age rating | 4+ | 4+ |
| Developer | Umit Sevim | Alban Nelaj |
In-app purchases
MathApex
- Worksheets ā Monthly1 Month trial$3.991 Month
- Worksheets ā Monthly7 Days trial$3.991 Month
- Worksheets ā Yearly7 Days trial$22.991 Year
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- Worksheets ā Yearly1 Month trial$22.991 Year
- Apex Pass (1 month)$2.99
- MathApex Pro$4.99
Kopfrechnen Trainer
- Premium-Abo$9.001 Year
Questions
Is MathApex free?
Is Kopfrechnen Trainer free?
Do MathApex or Kopfrechnen Trainer have ads?
Which is updated more often, MathApex or Kopfrechnen Trainer?
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