MathTre vs Abacus Trainer

Sharpen your mental math in just a few minutes a day. MathTre is a simple math workout for addition, subtraction, multiplication, division, and running sums. Open the app, tap start, and you're training. No clutter, no setup. Squeeze in a quick session on your commute, between tasks, or before bed. The more you practice, the faster and more accurate your mental math becomes. ■ PERFECT FOR YOU IF YOU WANT TO... ・Do quick math in your head at the checkout or when splitting the bill ・Make brain training a daily habit and keep your mind sharp ・Build speed for aptitude tests, entrance exams, or certifications with math sections ・Practice abacus-style mental arithmetic and running sums ・Give your kids a simple, distraction-free tool for arithmetic practice ・Race the clock and keep setting new personal bests ■ WHAT YOU CAN DO WITH MATHTRE [5 calculation modes] Addition, subtraction, multiplication, and division, plus Sums, where you add up a series of numbers one after another. From basic arithmetic drills to abacus-style running totals, it's all in one app. [Difficulty from 1 to 5 digits] Set anywhere from 1 to 5 digits, and choose the digits for each number separately (for example, 2-digit × 1-digit). Start with easy warm-ups and work your way up to big numbers that challenge even seasoned mental math fans. You can also choose the number of questions and, in Sums mode, how many numbers to add. [Fresh problems every time] Problems are randomly generated for every session, so there's no memorizing the answers. Every round is a true test of your calculation skills. [Track your time, see your progress] MathTre automatically records your clear time and your time per question. Beat your best and you'll see "New Record!!" — nothing motivates quite like beating yesterday's you. Your total correct answers and play time are saved too, so you can always look back on how far you've come. [A daily brain workout] A session takes just a few minutes. Do a set with your morning coffee or one before bed; it fits easily into any routine. A little practice every day is the surest way to get better at mental math. [Simple and focused] Large, easy-to-read numbers on a clean screen keep you focused on the problem in front of you. Customize the theme and sound to suit your style. Works on both iPhone and iPad. ■ GET STARTED IN 3 EASY STEPS 1. Pick a mode: addition, subtraction, multiplication, division, or Sums 2. Set the digits and the number of questions 3. Tap start! When you finish, you'll see your clear time and results That's it. You can start training the moment the mood strikes. ■ FAIR, SIMPLE PRICING Every mode and feature is free to use (with ads). Prefer to train without distractions? A single one-time purchase removes all banner and full-screen ads. No subscription, ever. Pay once and enjoy MathTre ad-free for good. Switching devices? Just tap "Restore Purchases." ■ START TODAY Your math skills grow with every bit of practice. Warm up your brain with one set a day on MathTre. Questions or ideas? Reach us anytime through the contact form in the app. We read every message and keep improving MathTre based on your feedback.

Train your brain to calculate without a calculator. Abacus Trainer teaches mental arithmetic the Japanese soroban way - slide real beads first, then learn to see the abacus in your head. 160 levels across 8 grades take you from your very first bead to full Flash Anzan speed, one small step at a time. THREE WAYS TO PRACTICE - Show All: every number on screen at once. The gentle way in. - Flash Anzan: numbers flash one by one and get faster each level. Builds working memory, focus and calculation speed. - Auditory Anzan: nothing to read. Numbers are spoken aloud and you calculate purely by ear. INTERACTIVE VIRTUAL SOROBAN Slide the beads with your finger on a real 5-bead soroban. Guide markers show what each rod is worth, and a free sandbox lets you build any number you like. Answer on the abacus itself or on the keypad - whichever trains you better. A CURRICULUM THAT ACTUALLY RAMPS - Addition first, subtraction from Grade 2, decimals from Grade 7. - Number chains grow from 3 numbers up to 12; values from 1 digit to 3. - Flash speed tightens from 2.0 seconds down to 0.4 seconds per number. Every level is at least as hard as the one before it, so there are no difficulty cliffs - just steady progress. MULTIPLY AND DIVIDE ON THE BEADS Step-by-step lessons show every bead move for multiplication and division on the soroban, then short practice sets let you try each shape, from 2 digits by 1 up to 3 digits by 2. BUILD YOUR OWN DRILL Custom Mode lets you set everything: addition and subtraction, multiplication or division, number of digits, rows, question count, flash speed, negatives and decimals. Ideal for competition prep or for drilling the one thing you keep getting wrong. PROGRESS YOU CAN SEE Accuracy, answer times, questions answered, best runs and unlocked badges - per grade and over time. Watch your average answer time drop week after week. COLLECT COMPANION CATS Level up to unlock and customise your own cat companion. Cozy, calm visuals with a dark theme make long practice sessions easy on the eyes, and the whole app stays suitable for all ages. WHO IT IS FOR Kids starting soroban or abacus class. Students training for mental arithmetic and speed-math competitions. Parents looking for screen time that actually teaches something. Adults who want to keep their brain sharp and add faster than they can reach for a phone. Practice runs offline, so a train ride or a waiting room is a training session. Free to download, supported by ads. One optional purchase removes the ads for good - every level, every mode and every cat is there either way, and nothing is locked behind a payment. Available in 8 languages including English, Indonesian, Spanish, Portuguese, Japanese, French, Italian, and Vietnamese. Download Abacus Trainer and start seeing the beads in your head.