A highly structured AP Calculus AB & BC prep app — 35–40 Macro-Skills, 60 Micro-Skills per track, and 50 AP-style Case Studies in a beautiful dark-mode experience.
What's Inside
CalculusAPex is built around three proven pillars of AP exam mastery — foundational skills, unit-by-unit depth, and integrated multi-concept reasoning.
35 Macro-Skills in AB and 40 Macro-Skills in BC build the mathematical backbone of AP Calculus — limit reasoning, algebraic simplification, derivative interpretation, graph analysis, and more.
AB & BCEvery AP Calculus unit broken into specific, learnable micro-skills — each with a concept explanation, AP exam tip, and a targeted practice problem. Track completions with a green checkmark.
8 Units50 multi-concept problems modeled after AP Free Response Questions. Reveal steps one at a time and review the full solution when done.
50 ProblemsAuto-generated exercises with shuffle mode for every Macro-Skill and Micro-Skill. Unlimited drilling with fresh problem ordering every session.
UnlimitedCheck your result after each submission and retry problems to reinforce correct reasoning.
Learn & RetryCircular progress rings, completion counters, and an overall stat dashboard so you always know exactly where you stand across all skills and exercises.
Visual StatsThe Method
Start with the cross-topic skills that underpin all of AP Calculus. Spend 10–15 minutes on 3–4 Macro-Skill exercises per day as a warm-up. Review your results and retry missed problems to improve consistency.
Work through all 8 units in order — or jump to your weakest unit. Each micro-skill card shows a concept explanation, an AP exam tip, and a practice problem. Complete all skills in a unit before moving forward.
Once you're confident in your unit skills, attack the Case Studies. Each problem crosses two or more units — just like Free Response Questions. Reveal one step at a time, building the multi-step reasoning pattern AP readers reward.
Use shuffle mode to randomize problem order each session. Once per week, set a 25-minute timer and attempt 5–6 exercises without pausing. This builds the exam-pace fluency that separates 4s from 5s.
Legal
Effective: March 17, 2026 · Last Reviewed: March 17, 2026
CalculusAPex ("the App") is an independent educational iOS application developed by JT Scientific. We take your privacy seriously. CalculusAPex does not collect, transmit, or sell any personal information. All user data is stored locally on your device.
The following data is stored only on your device using Apple's SwiftData framework. It is never transmitted to any server operated by JT Scientific:
| Data | Purpose |
|---|---|
| Exercise completion status | Track your progress |
| Selected course track (AB / BC) | Remember your curriculum preference |
| Premium entitlement | Verified by Apple via StoreKit |
Premium purchases are processed exclusively by Apple Inc. through StoreKit. JT Scientific does not receive, process, or store any payment information. Apple's privacy policy governs payment data.
The App does not integrate any third-party analytics SDK, advertising network, or data-sharing service. There are no third-party trackers.
We do not knowingly collect any personal information from children under 13. No personal data of any kind is collected from any user of any age. If you believe your child has provided personal information, contact us immediately—no such pathway exists, but we will investigate any concern promptly.
Delete all App data at any time by uninstalling the App, or via iOS Settings → General → iPhone Storage → CalculusAPex → Delete App.
Questions? Email jtscientific2016@gmail.com or visit jtscientific.com/CalculusAPex/.
Effective: March 17, 2026 · Last Reviewed: March 17, 2026
By downloading or using CalculusAPex, you agree to these Terms of Service. If you do not agree, do not use the App.
CalculusAPex is an independent educational app for AP Calculus AB and BC preparation. It is not an official College Board product and does not provide official AP exam materials.
JT Scientific grants you a personal, non-exclusive, non-transferable, revocable license to use the App for personal, non-commercial educational purposes. You may not copy, distribute, reverse-engineer, or commercially exploit the App or its content.
JT Scientific makes no warranty regarding the correctness or completeness of any practice problem, explanation, or auto-generated exercise. Users should cross-reference with official College Board materials.
Use of this App does not guarantee any specific AP exam score or academic outcome. Results depend on individual preparation, test conditions, and many other factors.
All App content is the intellectual property of JT Scientific. AP®, AP Calculus AB®, and AP Calculus BC® are trademarks of the College Board. JT Scientific is not affiliated with, endorsed by, or sponsored by the College Board.
THE APP IS PROVIDED "AS IS" WITHOUT WARRANTIES OF ANY KIND. JT SCIENTIFIC DOES NOT WARRANT THE APP WILL BE ERROR-FREE OR UNINTERRUPTED.
JT SCIENTIFIC'S TOTAL LIABILITY FOR ANY CLAIM SHALL NOT EXCEED THE AMOUNT YOU PAID FOR PREMIUM, OR $5.00 USD, WHICHEVER IS GREATER.
These Terms are governed by the laws of the State of California, United States.
Email: jtscientific2016@gmail.com
Effective: March 17, 2026 · Last Reviewed: March 17, 2026
AP®, AP Calculus AB®, and AP Calculus BC® are registered trademarks of the College Board. CalculusAPex is not affiliated with, endorsed by, or sponsored by the College Board. Use of these terms is solely descriptive of subject matter.
Practice problems and auto-generated exercises are provided for educational purposes only. JT Scientific makes no representations regarding the correctness or completeness of any specific problem. Users should cross-reference with official College Board course descriptions and scoring guidelines.
Use of this App does not guarantee any specific AP Calculus exam score, college credit outcome, or academic result. Exam performance is influenced by many individual and external factors beyond any study tool.
The App is provided on an "as is" basis. JT Scientific does not warrant the App will be free from errors, interruptions, or typographical mistakes. Bug reports and content corrections are welcomed at jtscientific2016@gmail.com.
Premium is a one-time non-consumable IAP processed by Apple. Non-refundable except as required by law. Contact reportaproblem.apple.com for refund requests.
The App does not knowingly collect personal information from children under 13. No personal data is collected from any user. No account or login is required to use the App.
JT Scientific's total liability shall not exceed the amount paid for Premium access or $5.00 USD, whichever is greater. JT Scientific is not liable for indirect, consequential, or punitive damages.
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