# Physics Answers vs AP Calculus AB/BC Test Prep

The clearest difference is iOS requirement: Physics Answers at 11.4 against AP Calculus AB/BC Test Prep's 15.6. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Physics Answers sells 2 in-app purchases, starting at $9.99 per month and AP Calculus AB/BC Test Prep sells 4 in-app purchases, starting at $6.99 per 7 days. Whichever you choose, the download price is not the number that matters.

Physics Answers ships an update every 3 months, AP Calculus AB/BC Test Prep every 5 months. The most recent releases landed on September 9, 2026 and June 8, 2026 respectively.

## The numbers

| Metric | Physics Answers | AP Calculus AB/BC Test Prep |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[3.5 (4 ratings)](https://appshunter.io/ios/app/ap-calculus-abbc-test-prep/id1553023908/reviews)** |
| Number of ratings | — | **4** |
| Positive reviews | — | 50.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 3 months** | Every 5 months |
| Monetization | — | Free with in-app purchases |
| Size | 111 MB | 82 MB |
| Requires iOS | **11.4** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Biobrain Learning Pty Ltd](https://appshunter.io/developer/1371680532) | [Expanded Apps, Inc.](https://appshunter.io/developer/313709778) |

## What reviewers say

### Physics Answers

[App page](https://appshunter.io/ios/app/physics-answers-ap-physics/id1510694550)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| All Content | $9.99 | per month |
| All Content | $49.99 | per year |


### AP Calculus AB/BC Test Prep

[App page](https://appshunter.io/ios/app/ap-calculus-abbc-test-prep/id1553023908)

Prepare for your AP Calculus AB/BC exam with 500 practice questions covering all topics. Detailed explanations are provided for each question, simulating the real exam experience. Track your progress and study effectively to achieve your best score.

**Highlights:** 500 AP-style questions and answers, Detailed review explanations, Simulates real AP exam, Updated material, Study, Timed Exam, and Bookmark modes, Progress tracking, iCloud save functionality

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 1 Week | $6.99 | per 7 days |
| 1 Month | $17.99 | per month |
| 1 Year | $69.99 | per year |
| AP Calculus AB/BC Exam Prep | $15.99 | one-time |


## Frequently asked questions

### Is Physics Answers free?

Physics Answers is free to download, with in-app purchases available.

### Is AP Calculus AB/BC Test Prep free?

AP Calculus AB/BC Test Prep is free to download, with in-app purchases available.

### Do Physics Answers or AP Calculus AB/BC Test Prep have ads?

Neither Physics Answers nor AP Calculus AB/BC Test Prep shows ads.

### Which is updated more often, Physics Answers or AP Calculus AB/BC Test Prep?

Physics Answers ships an update every 3 months, and AP Calculus AB/BC Test Prep every 5 months. Most recently, Physics Answers was updated on September 9, 2026 and AP Calculus AB/BC Test Prep on June 8, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*