AP Environmental Science vs Trigonometry Identities Proofs
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
AP Environmental Science
Prepare for your AP Environmental Science exam with 500 practice questions covering all topics. Utilize study, timed exam, and bookmark modes to track progress and review effectively. Access all content with a subscription.
- 500 AP-style practice questions
- Concise answer explanations
- Study, Timed Exam, and Bookmark modes
- Progress tracking
- iCloud save functionality
- Interactive features
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500 Ways to Achieve your Highest Score From Atmospheric Conditions and Soil Dynamics to Pollution Types, Alternative and Renewable Energies, and Global Change and Economics, there is a lot of subject matter to know if you want to succeed on your AP Environmental Science exam. That’s why we’ve selected these 500 AP-style questions and answers that cover all topics found on this exam. The targeted questions will prepare you for what you’ll see on test day, help you study more effectively, and use your review time wisely to achieve your best score. Each question includes a concise, easy-to-follow explanation in the answer key. You can use these questions to supplement your overall AP Environmental Science preparation or run them shortly before the test. Either way, 5 Steps to a 5 500 Environmental Science Questions will get you closer to achieving the score you want on test day. This free application includes all questions in Chapter 1 - Earth Science (1-33). The remaining 467 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 Author Anaxos, Inc. (Austin, TX) has been creating education and reference materials for over fifteen years. Based in Austin, Texas, the company uses writers from across the globe who offer expertise on an array of subjects just as expansive. Expanded Apps Privacy Policy: https://expandedapps.com/privacy-policy/ Expanded Apps Terms of Use: https://expandedapps.com/terms-of-use/
Trigonometry Identities Proofs
Learn and practice trigonometric identity proofs with step-by-step solutions. Compare your work to the app's detailed explanations, revealing each step individually.
- 42 trigonometric identity proofs
- Step-by-step solution reveal
- Compare your work to app solutions
- Practice trigonometry
- Educational math tool
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This app has 42 Trigonometric Proofs of Identities. Work on your own and then compare your answers to the steps shown in the app for proving the identity. Each step in the app is initially hidden and can be shown by clicking on the + button.
Screenshots
Verdict
The clearest difference is price: AP Environmental Science at Free against Trigonometry Identities Proofs's $0.99. AP Environmental Science also leads on rating (4.4 vs 1.0) and review sentiment (33% vs 0%). Trigonometry Identities Proofs's advantage is in-app purchases (none vs 7) and iOS requirement (13.0 vs 15.6). On ads and device support 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
AP Environmental Science is free to download; Trigonometry Identities Proofs costs $0.99 up front. AP Environmental Science sells 7 in-app purchases, starting at $5.99 per 7 days. Trigonometry Identities Proofs asks for nothing beyond the download.
AP Environmental Science holds the better App Store score, 4.4 against 1.0. Both are backed by a comparable volume of ratings — 7 and 2 respectively. Written reviews point the same way: 33% of AP Environmental Science's written reviews are positive against 0% of Trigonometry Identities Proofs's.
AP Environmental Science ships an update every 6 months, Trigonometry Identities Proofs every 32 months. The most recent releases landed on October 15, 2026 and October 29, 2026 respectively.
| Parameter | AP Environmental Science | Trigonometry Identities Proofs |
|---|---|---|
| Price | Free — better | $0.99 |
| Rating | 4.4 (7 ratings) — better | 1.0 (2 ratings) |
| Positive reviews | 33.3% of reviews — better | 0.0% of reviews |
| Number of ratings | 7 — better | 2 |
| Update frequency | Every 6 months — better | Every 32 months |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Freemium — better | Paid |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.6 | 13.0 — better |
| Further details — not scored | ||
| Size | 29 MB | 18 MB |
| Age rating | 17+ | 12+ |
| Developer | Expanded Apps | H3Apps LLC |
Customer experience
AP Environmental Science
Trigonometry Identities Proofs
In-app purchases
AP Environmental Science
- 1 Week$5.997 Days
- 1 Week$6.997 Days
- 1 Month$17.991 Month
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- 3 Month Subscription Plan$39.993 Months
- 1 Year$69.991 Year
- Annual Subscription Plan$99.991 Year
- AP Environmental Science$15.99
Trigonometry Identities Proofs
No in-app purchases
Questions
Is AP Environmental Science free?
Is Trigonometry Identities Proofs free?
Which has better reviews, AP Environmental Science or Trigonometry Identities Proofs?
Do AP Environmental Science or Trigonometry Identities Proofs have ads?
Which is updated more often, AP Environmental Science or Trigonometry Identities Proofs?
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