Self-paced precalc, step by step, designed to get you ready for calculus.
1+ downloads
About Precalc
Precalc is an education app developed by ASN Services LLC.
Download Statistics
Precalc has been downloaded 3 times. In the last 30 days, the app was downloaded 0 times.
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App Information
Precalc is FREE to download. The APK download size is 3.34 MB. The latest version available is 1.0.2. The last update was on June 9, 2026.
Technical Requirements
The app has a content rating of Everyone. The app has been available on Google Play June 2026.
Description
Precalc takes you from algebra-level foundations to calculus readiness. Built for students who memorize formulas without understanding them, then forget both.
Twelve chapters cover the full precalculus curriculum:
Chapter P. Prerequisites. Real numbers, exponents, radicals, polynomials, factoring, rational expressions. Chapter 1. Functions. Domain, range, transformations, composition. Chapter 2. Polynomial and Rational Functions. Behavior, zeros, asymptotes. Chapter 3. Exponential and Logarithmic Functions. Growth, decay, change of base. Chapter 4. Trigonometry. Right triangles, the unit circle, identities, graphs. Chapter 5. Analytic Trigonometry. Inverse functions, equations, complex applications. Chapter 6. Additional Topics in Trigonometry. Vectors, polar coordinates. Chapter 7. Systems of Equations. Linear, nonlinear, matrix methods. Chapter 8. Conic Sections. Parabolas, ellipses, hyperbolas. Chapter 9. Sequences, Series, and Probability. Arithmetic, geometric, induction. Chapter 10. Limits and an Introduction to Calculus. The handoff into the next course. Chapter 11. Final review.
What is different about Precalc
Step-by-step reasoning. Every worked example shows the path, not just the answer. The "why this step" appears next to the math, so you build the mental model instead of memorizing patterns.
On-device only. No account required. No data leaves your phone. No advertisements. Your study progress lives locally and stays yours.
Diagram-first design. Each chapter is built around diagrams sized for a phone screen, not scaled-down textbook figures. You can read the math while walking, on the bus, or at a desk.
Mobile-first practice. Worked examples followed by practice problems. Solutions on tap. Designed for thumb-sized interactions, not pinch and zoom.
Who Precalc is for
Students preparing for calculus who used Khan Academy or YouTube and want a more structured curriculum.
Students who tried a textbook and want guided derivations they can carry on a phone.
Adult learners returning to math after years away.
Homeschool families looking for a self-paced precalculus track that does not require a subscription.
What Precalc is not
Not a quiz app. Not a flashcard deck. Not a video course. Not a paid subscription. Not an account-gated platform.
Precalc is a self-contained reference and practice tool. You open it, work the math, close it. Repeat for twelve chapters and you are ready for Calculus 1.
Built and operated by ASN Services LLC.
Recent changes: Initial release.
Precalc takes you from algebra-level foundations to calculus readiness. Built for students who memorize formulas without understanding them.
This release: Stage P (Algebra Prerequisites) fully populated. 7 sections, 33 step-by-step problems. Per-chapter progress stored locally on device.
Privacy: no advertising identifier collection, no third-party tracking, no analytics that profile the learner.
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Each subscription will automatically renew 3 days before the expiration date for
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