Statistics vs Lexícon

StatRise helps students learn statistics and probability without ads, accounts, or internet-dependent tools. Use it as a statistics calculator, study guide, AP Statistics review app, intro stats companion, or quick homework helper when you need to understand the work behind the answer. LEARN STATISTICS STEP BY STEP Work through 54 lessons across 6 core modules: - Descriptive statistics and data visualization - Probability rules, conditional probability, and Bayes theorem - Normal, binomial, and Poisson distributions - Sampling distributions and the Central Limit Theorem - Confidence intervals and hypothesis testing - Regression, correlation, residuals, and R-squared Each lesson is built for students who want clear definitions, formulas, examples, and practical intuition. CALCULATE WITH WORKED SOLUTIONS StatRise includes 39 statistics and probability calculators, including: - Mean, median, mode, range, variance, standard deviation, quartiles, IQR, skewness, and kurtosis - Probability, complements, unions, intersections, conditional probability, and Bayes theorem - Permutations, combinations, and factorials - Normal, binomial, and Poisson distribution tools - Z-tests, t-tests, paired t-tests, chi-square tests, and ANOVA - Confidence intervals for means and proportions - Linear regression, correlation, R-squared, residuals, and scatter plots Free users can use the included free calculators. StatRise Pro unlocks the full calculator library and step-by-step worked solutions. PRACTICE FOR MASTERY Build confidence with 600+ practice questions and detailed explanations. - Today's 5 gives you a focused daily review set - Mixed practice lets you choose what to study - Timed exam mode helps with test pacing - Mistake review keeps track of missed questions - Spaced revision brings weak topics back at the right time Progress is stored locally on your device so you can track accuracy, streaks, weekly goals, and topic mastery without creating an account. SEE PROBABILITY AND STATS VISUALLY Interactive simulations make abstract ideas easier to understand: - Coin and dice simulator - Distribution explorer - Sampling distribution and CLT visualizer - Confidence interval coverage simulator - Regression lab - Type I and Type II error visualizer OFFLINE-FIRST AND PRIVATE Core lessons, calculators, practice, and simulations run on-device. StatRise has no ads, no login system, no tracking, and no custom backend. Purchases and restore require an App Store connection. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Lexícon is a fast, elegant vocabulary game: see a word, find its synonym, beat the clock. Simple to start, genuinely hard to master. THREE TIERS, YOUR PACE Play across Easy, Advanced, and Expert. Warm up on familiar words, then push into territory that actually stretches your vocabulary. Every word is drawn from established lexical databases (Princeton WordNet and the Spanish WordNet via the Open Multilingual Wordnet), so the answers are real and defensible — not made up. ENGLISH AND SPANISH, ONE APP Switch the entire experience between English and Spanish word banks. Great for native speakers sharpening their edge, and for anyone serious about building a second-language vocabulary. RACE YOUR FRIENDS Quick Race drops you into a real-time match at the tier you choose. Challenge a Friend generates a code you can share so you can go head-to-head from anywhere. Same words, same clock — fastest correct answers win. BUILD YOUR VAULT Missed a word? Save it to your personal Vault and come back to review it later. Turn the words that beat you into the words you own. KEEP YOUR STREAK A new Word of the Day and a running streak give you a reason to come back daily. Watch your best streak climb. LEXÍCON PRO Lexícon is free to play. Lexícon Pro unlocks the full experience: - Unlimited Advanced and Expert tiers - No daily play limits - Unlimited Vault saves Pro is available monthly, annually (with a free trial), or as a one-time lifetime purchase. Subscriptions are billed through your Apple ID and can be managed or cancelled any time in Settings. Payment is handled entirely by Apple — Lexícon never sees your payment details. Find the synonym. Beat the clock. Build your Lexícon. Privacy Policy: https://lexicon-codeascent.netlify.app/privacy Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/