Comparison

PP+ Newton's 2nd Law vs AP Physics C, 2e

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

PP+ Newton's 2nd Law

This app simulates a physics lab to explore Newton's Second Law, allowing students to collect and analyze realistic experimental data. It includes introductory videos, background theory, and reporting tools for a comprehensive learning experience.

Highlights
  • 3D physics simulation
  • Realistic data with errors
  • Introductory videos
  • Background theory
  • Experimental procedure
  • Analysis and reporting tools
  • Pre-lab and post-lab quizzes
Features
Read full description

The Newton’s Second Law lab uses a laboratory cart to investigate the relationships between the force applied to an object and the mass and acceleration of the object. It is part of Polyhedron Physics Plus, a set of 24 iPad apps for use in the classroom. For those who’d prefer to develop their own experiments, the PP Cart and Pulley app features a similar apparatus without lab procedures and other supporting materials. In addition to a 3D simulation that produces realistic data, each lab includes introductory videos, background theory, experimental procedure, analysis and reporting tools, pre-lab quiz, post-lab questions, and teacher support materials. The experimental data produced by the simulations are realistic, including random and systematic errors. These features allow students to use standard data analysis and error analysis techniques to report on their own unique data, just as if the experiment had been performed using hands-on equipment. These labs can serve as replacements for hands-on labs, especially when equipment is not available, or as supplements to hands-on labs. They are also a suitable option for students in distance learning and home school situations. Formative and summative evaluations showed no significant difference in learning between students using the virtual labs and those using hands-on labs. Preliminary results suggest increased learning by students using the virtual labs as supplements to hands-on. Polyhedron Physics was developed by Polyhedron Learning Media, Inc. with partial funding provided under contract numbers ED-07-CO-0040 and ED-IES-11-C-0029 from the Institute of Education Sciences in the U.S. Department of Education through the Small Business Innovation Research (SBIR) program.

About

AP Physics C, 2e

Read full description

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/

Screenshots

AP Physics C, 2e4 screens

Verdict

The call

The clearest difference is in-app purchases: PP+ Newton's 2nd Law at none against AP Physics C, 2e's 5. PP+ Newton's 2nd Law also leads on update cadence (every 3 months vs every 7 months). AP Physics C, 2e's advantage is device support (3 vs 1) and iOS requirement (15.6 vs 18.0). On price and ads 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. AP Physics C, 2e sells 5 in-app purchases, starting at $5.99 per 7 days. PP+ Newton's 2nd Law asks for nothing beyond the download.

UpkeepUpdate frequency

PP+ Newton's 2nd Law ships an update every 3 months, AP Physics C, 2e every 7 months. The most recent releases landed on June 8, 2026 and September 17, 2026 respectively.

Scorecard4 real differences · 6 level
PP+ Newton's 2nd Law versus AP Physics C, 2e: the parameters behind the verdict, then further details
ParameterPP+ Newton's 2nd LawAP Physics C, 2e
PriceFreeFree
Rating2.5 (2 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings2 — better—
Update frequencyEvery 3 months — betterEvery 7 months
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree—
DevicesiPadiPhone, iPad, iPod — better
Requires iOS18.015.6 — better
Further details — not scored
Size116 MB57 MB
Age rating4+4+
DeveloperPolyhedron Learning Media, Inc.Expanded Apps

In-app purchases

None

PP+ Newton's 2nd Law

No in-app purchases

5 purchases

AP Physics C, 2e

Subscriptions4
  • 1 Week$5.997 Days
  • 1 Week$6.997 Days
  • 1 Month$17.991 Month
Show 1 more
  • 1 Year$69.991 Year
One-time1
  • AP Physics C, 2e - Test Prep$15.99

Questions

Is PP+ Newton's 2nd Law free?
PP+ Newton's 2nd Law is free to download, with no in-app purchases.
Is AP Physics C, 2e free?
AP Physics C, 2e is free to download, with in-app purchases available.
Do PP+ Newton's 2nd Law or AP Physics C, 2e have ads?
Neither PP+ Newton's 2nd Law nor AP Physics C, 2e shows ads.
Which is updated more often, PP+ Newton's 2nd Law or AP Physics C, 2e?
PP+ Newton's 2nd Law ships an update every 3 months, and AP Physics C, 2e every 7 months. Most recently, PP+ Newton's 2nd Law was updated on June 8, 2026 and AP Physics C, 2e on September 17, 2026.

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