Calculate84 Plus vs Locked In

Graph functions, use advanced math commands for your calculations, create tables, and perform statistics. CALCULATE • Type in equations in natural textbook format • The scientific calculator solves all functions like sin, cos, tan, e, ln, Σ, log, ... • Use MATH, NUM, and PROB functions GRAPH • The graphing calculator lets you plot more than ten functions at once, each with a different color • Touch-enabled graph window • Zoom and trace with your fingers in full-screen • Find intersect, min, max, zero, integral, and derivative STATISTICS • Easily enter lists using the Statistics List Editor • Perform 1- and 2- Variable Stats • Find best-fit lines like LinReg, QuadReg, CubicReg, QuartReg, ExpReg • Work with distributions and regressions TABLE • Analyze X and Y values of your functions MATRIX • Do basic matrix arithmetic operations like +, -, *, or power of a Matrix • Put the matrix into Reduced Row-Echelon form and solve linear equation systems • Calculate the determinant, inversion or transpose the matrix CATALOG • Extensive catalog of all commands with syntax, example, and possible error messages CONTACT Write to us at contact@hypercalc.org --- For extended features such as more advanced calculations and functions, subscribe to HyperCalc. Auto-Renewable Subscription Terms: • Payment will be charged to iTunes Account at confirmation of purchase; • Subscription automatically renews unless auto-renew is turned off at least 24-hours before the end of the current period; • Account will be charged for renewal within 24-hours prior to the end of the current period, and identify the cost of the renewal; • Subscriptions may be managed by the user and auto-renewal may be turned off by going to the user's Account Settings after purchase; • Any unused portion of a free trial period, if offered, will be forfeited when the user purchases a subscription to that publication, where applicable; • Prices are in U.S. dollars, may vary in countries other than the U.S. and are subject to change without notice. Terms of Service: http://www.hypercalc.org/terms.html Privacy Policy: http://www.hypercalc.org/privacy.html

Locked In is an independent study companion for the CySA+ CS0-004 exam. It is designed for short, focused study sessions and works without an account, ads, analytics, or third-party tracking. CompTIA launched CS0-004 on June 23, 2026. The English CS0-003 exam retires on December 22, 2026. STUDY CONTENT • 91 concise lessons across all 15 CS0-004 objective headings in four domains • 91 inline quick checks, one at the end of every lesson • Visual explanations for selected concepts including security operations, threat intelligence, vulnerability management, incident response, and reporting • 100 flashcards with optional spaced review • A searchable glossary with 137 terms and acronyms • Search, progress tracking, study streaks, bookmarks, and personal notes PRACTICE • 121 original multiple-choice questions organized by domain • 20 tap-driven PBQ-style activities for categorizing, ordering, and matching practice • An 85-question, 165-minute multiple-choice Timed Practice mode with checkpointing, flag-for-review, a navigation grid, and results review • A weak-spot review queue that reschedules missed questions and flashcards Timed Practice and the PBQ-style activities are separate, original app content. They are not official CompTIA questions, a reproduced exam blueprint, or an exam simulation. The app's 80% practice target is not a CompTIA scaled score, passing prediction, or claim about the official passing standard. FREE TO TRY The free tier includes 16 complete lessons, a curated 10-question quiz sampler, 30 Domain 1 flashcards, two PBQ-style preview activities, 98 of the 137 glossary terms, and on-device study tools for included content. The 39 glossary terms that repeat paid flashcards open with the Full Unlock. ONE-TIME FULL UNLOCK The non-consumable Full Unlock opens all 91 lessons, quiz access to the full 121-question bank, all 20 PBQ-style activities, all 100 flashcards, all 137 glossary terms, and the 85-question Timed Practice mode. There is no subscription. OFFLINE AND PRIVATE Lessons, questions, activities, flashcards, glossary content, notes, and progress are bundled and stored on-device. Product loading, buying, and restoring use Apple's App Store services and require a network connection. DISCLAIMER Not affiliated with, endorsed by, or sponsored by CompTIA. CompTIA® and CySA+® are registered trademarks of CompTIA, Inc. Locked In is an independent study aid. Always verify current exam policies and objectives with CompTIA.