Math Trainer vs BenchCalc

Math Trainer, a quick and easy way to improve your mental arithmetic. Add, Subtract, Divide and Multiply through quick fire questions with four difficulties. Features: • Difficulty - Choose between 4 different difficulties depending on your level (Pro Only) • Operators - Choose between all 4 operators (Pro Only) • Free Trial - Addition Easy Mode is unlocked for Free • Game Center Leaderboards - Compete against players around the world for the fastest time in every difficulty and operator • Game Center Achievements - Earn over 20 achievements as you play the game • iCloud Sync - All Settings sync via iCloud so you can start with the same difficulty and challenge on all of your devices • Full iOS Support - Dark Mode, Split Screen, VoiceOver and much more • Privacy - No data is ever stored outside of your device and with no tracking or analytics • Pay Once - One in app purchase with no ads or subscriptions, just regular free updates Available for iPhone and iPad. Also available for Mac and Apple TV included with your purchase.

BenchCalc is the fast, modern chemistry calculator built for scientists, students, and lab workers who need quick, accurate results at the bench. MOLARITY CALCULATOR Calculate molar concentration from mass, molecular weight, and volume. Results auto-scale between M, mM, µM, and nM so you always see the most useful unit. DILUTION CALCULATOR (C1V1 = C2V2) Solve for any variable in the dilution equation. Select what you need — final volume, starting concentration, or anything else — and get your answer instantly. UNIT CONVERTER Convert between concentration (M, mM, µM, nM), mass (g, mg, µg), and volume (L, mL, µL) units with a single tap. CALCULATION HISTORY Every calculation is saved automatically. Review past results, copy them to your clipboard, or share with colleagues. Swipe to delete what you don't need. DESIGNED FOR THE LAB • Clean, modern interface that's easy to read at the bench • Full dark mode support for late nights in the lab • Haptic feedback confirms every calculation • Copy and share results instantly • No account required — just open and calculate PRIVACY FIRST No data collected. No analytics. No network requests. Your calculations stay on your device. Period. Built by scientists, for scientists.