LarissaMath vs N

LarissaMath helps memorizing basic mathematical operations. It will also help to speed up solving linear, quadratic, and cubic equations with an unknown variable. The Memory part comes from the Nobel Prize Winner in Economics Daniel Kahneman. He described the exercises in this app in his bestseller "Thinking, Fast and Slow". It has three modes: 1. Expressions. In easy level you need to calculate multiplication, division, summation, and subtraction where at least two arguments are no greater than 10. Some examples are: 5x3=15, 25:5=5, etc. The medium level also has calculations, but now at least two arguments are no greater than 25. Some examples are: 13x13=169, 225:15=15, etc. The advanced level has more advanced expressions using numbers up to 30. 2. Equations. In easy level you have to solve a linear equation on x. For, example, -2x + 15 = 11 (solution: x = 2). This equation should ideally be solved without pen and paper. Other equations in this level are fractions, e.g. x/10 = 9/6 or 4/x = 20/5, etc. The medium level has quadratic equations and the advanced level has cubic equations. 3. Memory. Here you can see a number with between 4 and 7 digits (depending on the level) and between 0.7 and 4 seconds (this is configurable in settings). The default time is 2 seconds, as suggested by Kahneman. You have to memorize it and then type a new number, having each digit increased by one. Nine gets converted to zero. For example, if the original number is 720983, the answer will be 831094. Additionally, the app remembers your best score and time for each mode, level, and for each number of entries.

A daily training app based on the N-Back task, widely used in cognitive psychology research. Challenge your working memory with just 5 minutes a day. ◆ 3 TRAINING MODES • Single — Position: Memorize lit positions on a 3×3 grid • Single — Audio: Remember spoken letters via text-to-speech • Dual — Position + Audio: Train both at the same time for the ultimate challenge ◆ TRACK YOUR GROWTH • Accuracy trend chart and session history • Highest N-level reached • Streak counter to build a daily habit • iCloud sync keeps your training data on every device ◆ COMPETE & ACHIEVE • Game Center leaderboards: accuracy, max N-level, streak • 8 achievements from your first session to 30-day streaks ◆ DESIGNED FOR FOCUS • Zero ads during training — your concentration comes first • Clean, minimal interface inspired by fitness tracking tools ◆ SIMPLE PRICING • Free to use with occasional ads (never during training) • Optional Premium subscription removes all ads. Every training feature stays free ◆ ADJUSTABLE DIFFICULTY • N-1 to N-9: start easy and progress at your own pace • Suitable for students, professionals, and anyone looking to challenge their cognitive abilities Note: This app is a cognitive training tool based on the N-Back task used in research. It is not a medical device and does not diagnose, treat, or prevent any condition. Improvement in cognitive function is not guaranteed. Premium is an auto-renewing monthly subscription. Payment is charged to your Apple Account, and the subscription renews automatically unless canceled at least 24 hours before the end of the current period. You can manage or cancel it anytime in your Apple Account settings. Terms of Use: https://fukuidinotech.github.io/nback-training-site/terms.html Privacy Policy: https://fukuidinotech.github.io/nback-training-site/privacy.html Apple Standard EULA: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/