Kivvs vs Perry

Kivvs — Master anything. Permanently. You've probably tried an app. Maybe two or three. You collected streaks, earned trophies, and after a year had a handful of phrases to show for it. Not because you lacked dedication — but because those tools were never built to take you anywhere. Maybe you tried an AI tutor instead. But a conversation that goes wherever you steer it isn't a curriculum — it's a mirror. You still had to know what to ask, what to practice, what came next. And you didn't. Because that's the whole point of having a system. Not a flashcard app. A learning system. Most learning tools track whether you've seen something. Kivvs tracks whether you actually know it — and builds every session from the ground up based on that distinction. At its core is a concept-based learning engine. Where traditional SRS tools show you a card — a word, a definition, maybe a sentence — Kivvs builds a semantic map. Every concept is encountered across dozens of natural contexts, modalities, and uses: reading it, hearing it, writing it, producing it. Not "a car is a vehicle with four wheels" — but driving it, cleaning it, crashing it, describing its color, until the word lives in your mind the way it lives in a native speaker's. And "concept" doesn't just mean vocabulary. The same system maps pronunciation: that the 'v' in "vine", and the 'f' in "of" land on the same sound — not because you studied a rule, but because you encountered them, in context, until your ear and mouth simply knew. It maps grammar the same way: you'll use the conditional, the subjunctive, complex tense constructions — correctly, automatically, in the right moment — because the system saturated you with the pattern across hundreds of natural examples until it became instinct. Without studying a single rule. Every session is assembled live, interleaving what you need to reinforce with what you're ready to acquire next. No static decks. No preset curriculum. A living system that adapts to your actual knowledge state. Built on decades of research you've never benefited from The science behind effective learning has existed for years. Frequency-based vocabulary progression. Phonological training that actually produces native-like pronunciation. Implicit grammar acquisition through massive contextual exposure — no rules to memorize, no theory to study. These methods are not experimental. They've simply never been applied together, at scale, in a consumer product. Until now. What acquisition actually looks like Conventional language courses are built around the assumption that you'll plateau at basic conversational ability. Kivvs is not. The system is designed for complete fluency — the kind where you don't translate in your head, don't hesitate before speaking, and don't sound like a tourist. One lesson a day will get you there in a few years. Serious daily commitment can compress that dramatically. Currently available: Language courses Spanish · French · Italian · Portuguese · English · German · Russian · Arabic More languages in active development. Coming soon: Music & Strategy. Kivvs is being built for any domain where deep, structured knowledge matters. Try Kivvs free for 30 days — full access, no restrictions. After that, a subscription is required to continue. Learn more about the science behind Kivvs at: https://www.kivvs.com/ Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Terms of Service: https://www.kivvs.com/terms Privacy Policy: https://www.kivvs.com/privacy

Perry is an offline AP exam coach that runs entirely on your phone. No account, no cloud sync, no ads, no tracking — your practice history and any AI tutor chats stay in local storage on your device. WHAT'S INCLUDED, PER SUBJECT • A diagnostic to see where you stand, and a free unit to try the app risk-free • Quick, domain, and adaptive practice drills across every unit • Full-length mock exams with timed MCQ and FRQ sections, a break, and composite scoring • Graphs and data tables in science, statistics, calculus, and economics questions • Free-response (FRQ) practice with rubric-based self-scoring • Spaced review that resurfaces what you're about to forget, powered by FSRS (a modern spaced-repetition scheduler) • Confidence-first practice — rate how sure you are before the answer is revealed, so overconfidence shows up in your stats instead of on exam day • An honest readiness estimate shown as a range, with how much practice it's based on • Local backup and restore, so your progress can move with you to a new device 25 AP SUBJECTS AP Biology, Chemistry, Physics 1, Physics C: Mechanics, Calculus AB, Calculus BC, Statistics, US History, World History, European History, US Government, Comparative Government, English Language, English Literature, Psychology, Microeconomics, Macroeconomics, Environmental Science, Computer Science A, Computer Science Principles, Human Geography, Spanish Language, French Language, Art History, and Music Theory. FREE TO START Every subject includes a free diagnostic, a full free unit, and a practice quota with no time limit or trial period. Try up to three subjects at no cost, complete one full-length mock exam per subject for free, and back up your progress at no charge. PERRY, AN ON-DEVICE AI TUTOR Full Access adds Perry, a tutor model that runs on your device (an optional download, roughly 2.7 GB over Wi-Fi). Ask Perry why an answer is wrong or get coaching on free-response strategy — the conversation never leaves your phone, because there's no server to send it to. FULL ACCESS A single one-time purchase, Full Access, unlocks every subject's full question bank, unlimited mock exams, Perry, and AI-assisted FRQ scoring. No subscription, no recurring charge. Schools and groups issued an access code can enter it in Settings instead of purchasing. HONEST ABOUT WHAT IT IS Perry is a study tool. Its FRQ feedback — whether self-scored against the rubric or AI-assisted — is an estimate meant to guide your practice, not a substitute for your teacher's grading or the real exam. This app is not affiliated with the College Board. AP® is a trademark registered by the College Board, which is not affiliated with, and does not endorse, this app.