Comparison

Anecdata.org vs AP Environmental Science

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

Head to head
About

Anecdata.org

This platform empowers users to create, manage, and participate in citizen science projects. It facilitates data collection in the field, even offline, and supports project analysis and download.

Highlights
  • Project creation and management
  • Datasheet design
  • Participant invitation
  • Offline data collection
  • Data download and analysis
Features
Read full description

Anecdata.org is a free online platform for managing all aspects of a citizen science project, from project creation, datasheet design, inviting participants, collecting data, to eventual download and analysis of data! The app makes it easy for you to create your own project or find a project to join, with excellent offline support for collecting data in the field.

About

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.

Highlights
  • 500 AP-style practice questions
  • Concise answer explanations
  • Study, Timed Exam, and Bookmark modes
  • Progress tracking
  • iCloud save functionality
  • Interactive features
Features
Read full description

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/

Screenshots

Anecdata.org4 screens
AP Environmental Science4 screens

Verdict

The call

The clearest difference is rating: Anecdata.org at 5.0 against AP Environmental Science's 4.4. Anecdata.org also leads on in-app purchases (none vs 7) and update cadence (every 3 weeks vs every 6 months). On price, ratings volume, 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. AP Environmental Science sells 7 in-app purchases, starting at $5.99 per 7 days. Anecdata.org asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Anecdata.org holds the better App Store score, 5.0 against 4.4. Both are backed by a comparable volume of ratings — 4 and 7 respectively.

UpkeepUpdate frequency

Anecdata.org ships an update every 3 weeks, AP Environmental Science every 6 months. The most recent releases landed on October 9, 2026 and October 15, 2026 respectively.

Scorecard5 real differences · 5 level
Anecdata.org versus AP Environmental Science: the parameters behind the verdict, then further details
ParameterAnecdata.orgAP Environmental Science
PriceFreeFree
Rating5.0 (4 ratings) — better4.4 (7 ratings)
Positive reviews—33.3% of reviews
Number of ratings47 — better
Update frequencyEvery 3 weeks — betterEvery 6 months
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFreemium
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS13.0 — better15.6
Further details — not scored
Size47 MB29 MB
Age rating4+17+
DeveloperMDI Biological LaboratoryExpanded Apps

Customer experience

Anecdata.org

All ratings4 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

AP Environmental Science

All ratings7 ratings
Positive85.7%
Neutral0.0%
Negative14.3%
Written reviews3 reviews
Positive33.3%
Neutral0.0%
Negative66.7%

In-app purchases

None

Anecdata.org

No in-app purchases

7 purchases

AP Environmental Science

Subscriptions6
  • 1 Week$5.997 Days
  • 1 Week$6.997 Days
  • 1 Month$17.991 Month
Show 3 more
  • 3 Month Subscription Plan$39.993 Months
  • 1 Year$69.991 Year
  • Annual Subscription Plan$99.991 Year
One-time1
  • AP Environmental Science$15.99

Questions

Is Anecdata.org free?
Anecdata.org is free to download, with no in-app purchases.
Is AP Environmental Science free?
AP Environmental Science is free to download, with in-app purchases available.
Which has better reviews, Anecdata.org or AP Environmental Science?
Anecdata.org is rated higher. Anecdata.org averages 5.0 out of 5 from 4 ratings, while AP Environmental Science averages 4.4 from 7 ratings.
Do Anecdata.org or AP Environmental Science have ads?
Neither Anecdata.org nor AP Environmental Science shows ads.
Which is updated more often, Anecdata.org or AP Environmental Science?
Anecdata.org ships an update every 3 weeks, and AP Environmental Science every 6 months. Most recently, Anecdata.org was updated on October 9, 2026 and AP Environmental Science on October 15, 2026.

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