AP Physics C, 2e vs LumiSource
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
AP Physics C, 2e
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Practice! Practice! Practice! Essential practice questions for AP Physics C ― updated to reflect the latest exam. Organized for easy reference and tailored to help you maximize your study time, 500 AP Physics C Questions to Know by Test Day, 2e offers extensive review and rigorous practice. The 5 Steps team brings you the vital resources you need to help you score that 5! -500 AP-style questions and answers referenced to core AP materials -NEW: A 20-question diagnostic quiz -Questions that parallel the topic, format, and degree of difficulty of your AP exam -Comprehensive, easy-to-understand explanations -Ideal and effective last-minute practice This free application includes all questions in Chapter 1 - Kinematics (1-50). The remaining 450 questions are available with a subscription. This app has been designed for the iPhone/iPad with interactive features. -Study/Timed Exam/Bookmark modes are available for review. -In the Study mode, check the answers as you tackle the questions. -In the Timed Exam mode, time yourself and review the answers after the time is up. -In the Bookmark mode, review only the questions you have flagged for further study. -File away correctly answered questions after each practice test. -Opt to include questions from previous quizzes. -Store practice test scores to track your progress. -Save your work to the iCloud to access on multiple devices. About the Authors Hugh Henderson teaches AP Physics at Booker T. Washington School for the Performing and Visual Arts in Dallas and has been an educator for more than 30 years. He is a former member of the AP Test Development Committee and was an AP Physics Reader for more than a dozen years. Jeff Steele is an adjunct instructor in physics at Randolph College. He holds a bachelor's degree in nuclear engineering from UC Santa Barbara and a master's degree in physics education from the University of Virginia. He has taught physics at Randolph College, University of Lynchburg and the University of Virginia. Expanded Apps Privacy Policy: https://expandedapps.com/privacy-policy/ Expanded Apps Terms of Use: https://expandedapps.com/terms-of-use/
LumiSource
Prepare for AP exams with condensed study guides and realistic practice tests. This app offers mobile-optimized content for efficient review anytime, anywhere. It currently supports over 10 AP subjects.
- Condensed study guides
- Realistic practice tests
- Detailed answer breakdowns
- Mobile-optimized for on-the-go study
- Supports over 10 AP subjects
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Crush your AP exams and the SAT with LumiSource, your all-in-one review hub. Whether you're reviewing last-minute or planning ahead, LumiSource helps you prep faster and smarter with: Study Guides: condensed, high-yield content made for rapid review Practice Questions: realistic questions with detailed answer breakdowns SAT Prep: targeted review and practice to help you boost your score Mobile-optimized: study anywhere, anytime Now supporting the SAT and 22 AP courses. Start reviewing today with LumiSource.
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Verdict
The clearest difference is in-app purchases: LumiSource at none against AP Physics C, 2e's 5. LumiSource also leads on update cadence (every 3 months vs every 7 months). On price, ads, device support and iOS requirement there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. AP Physics C, 2e sells 5 in-app purchases, starting at $5.99 per 7 days. LumiSource asks for nothing beyond the download.
AP Physics C, 2e ships an update every 7 months, LumiSource every 3 months. The most recent releases landed on October 4, 2026 and October 16, 2026 respectively.
| Parameter | AP Physics C, 2e | LumiSource |
|---|---|---|
| Price | Free | Free |
| Rating | — | 4.8 (91 ratings) — better |
| Positive reviews | — | 93.3% of reviews |
| Number of ratings | — | 91 — better |
| Update frequency | Every 7 months | Every 3 months — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | — | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.6 | 15.0 — better |
| Further details — not scored | ||
| Size | 57 MB | 81 MB |
| Age rating | 4+ | 4+ |
| Developer | Expanded Apps | CaseHippo Inc |
In-app purchases
AP Physics C, 2e
- 1 Week$5.997 Days
- 1 Week$6.997 Days
- 1 Month$17.991 Month
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- 1 Year$69.991 Year
- AP Physics C, 2e - Test Prep$15.99
LumiSource
No in-app purchases
Questions
Is AP Physics C, 2e free?
Is LumiSource free?
Do AP Physics C, 2e or LumiSource have ads?
Which is updated more often, AP Physics C, 2e or LumiSource?
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