Comparison

Keystone Alg I Practice Tests vs A

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

Head to head
About

Keystone Alg I Practice Tests

Prepare for your Algebra I exam with realistic practice tests. This app offers 120 multiple-choice questions across two tests, complete solutions, and helpful tools like a calculator and formula sheet to boost your confidence.

Highlights
  • 120 multiple-choice questions
  • Two practice tests with modules
  • Complete solutions provided
  • Formula sheet and calculator
  • Question navigator and flagging
  • Scoring with estimated Keystone score
  • Optional timer for time management
Features
Read full description

This app has two practice tests, each with two modules for a total of 120 multiple choice questions and complete solutions. Some of the multiple choice questions emulate constructed-response type questions. This math practice test simulates the actual test environment and typical questions asked on the real test. This practice test covers most of the possible questions likely to appear on the computer based test and will help you prepare by testing your knowledge. It also provides solutions to help reinforce the methodology in solving the problems. Simulating the actual test experience when using this app will help you overcome some of the pre-test jitters before taking the actual test. The practice test app includes: * 120 Multiple-choice questions in two tests, each with two modules * Complete solutions * Commonly used formula sheet * Pop-up calculator * Navigator to select questions in any order and status of how many questions you've completed * Flag selection to allow you to come back to a question * Scoring screen with estimated Keystone Algebra score * Optional 75 minute timer to help you complete the test on time * Share your test results on Facebook and Twitter This product is NOT affiliated with or endorsed by Data Recognition Corporation (DRC).

About

A

Prepare for A-Level Biology exams with over 1000 practice questions covering all topics. Track your progress, identify areas for improvement, and take chapter-based tests and full mock quizzes to assess your readiness.

Highlights
  • 1000+ practice questions
  • Covers all course topics
  • Chapter-based tests
  • Pop and Mock quizzes
  • Progress monitoring
  • Topic-specific improvement tracking
Features
Read full description

The A-Level Biology App. This app helps you revise and monitor your progress for the A-Level biology examination. The app contain 1000+ questions from all topics and sub topics which are covered in the official course. App covers all the topics where you can practice and learn. There are test based on each chapter in the end to practice your concepts. You can then take Pop or Mock quizzes on the complete course to see where you stand. The app also helps you to monitor your progress and scores and shows your improvement by topic so that you can focus more or less on topics as required. Any feedback you have on the content or the user interface would be warmly received - please email us at aerion.labs@gmail.com. We wish you all the best for your examinations. The A-Level Biology App-AQA subscription "A-Level Biology Subscription" The A-Level Biology App-AQA plans: Monthly: GBP 1.99 Payments and Renewal: Monthly Payment will be charged to iTunes Account at confirmation of purchase. Subscription automatically renews unless auto-renew is turned off at least 24-hours before the end of the current period. Account will be charged for renewal within 24-hours prior to the end of the current period. You can manage or turn off auto-renew in your Account settings at any time after purchase No cancellation of the current subscription is allowed during the active period. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://sites.google.com/view/aerionlabs/home/PrivacyPolicy Contact Us: https://sites.google.com/view/aerionlabs/home/about-us

Screenshots

Keystone Alg I Practice Tests4 screens
A4 screens

Verdict

The call

The clearest difference is review sentiment: Keystone Alg I Practice Tests at 80% against A's 0%. Keystone Alg I Practice Tests also leads on rating (2.0 vs 1.0) and in-app purchases (none vs 3). A's advantage is price (Free vs $0.99). 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

CostPrice · In-app purchases · Ads · Monetization

A is free to download; Keystone Alg I Practice Tests costs $0.99 up front. A sells 3 in-app purchases, starting at $1.99 per month. Keystone Alg I Practice Tests asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Keystone Alg I Practice Tests holds the better App Store score, 2.0 against 1.0. That said, the two scores are not equally well evidenced: Keystone Alg I Practice Tests has 7 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 80% of Keystone Alg I Practice Tests's written reviews are positive against 0% of A's.

UpkeepUpdate frequency

Keystone Alg I Practice Tests ships an update every 2 months, A every 8 months. The most recent releases landed on November 1, 2026 and November 3, 2026 respectively.

Scorecard8 real differences · 2 level
Keystone Alg I Practice Tests versus A: the parameters behind the verdict, then further details
ParameterKeystone Alg I Practice TestsA
Price$0.99Free — better
Rating2.0 (7 ratings) — better1.0 (1 ratings)
Positive reviews80.0% of reviews — better0.0% of reviews
Number of ratings7 — better1
Update frequencyEvery 2 months — betterEvery 8 months
AdsNoNo
In-app purchasesNo — betterYes
MonetizationPaidFree with in-app purchases — better
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS8.0 — better13.0
Further details — not scored
Size27 MB179 MB
Age rating4+4+
DeveloperiPREPpress LLCAerion Design Labs Ltd.

Customer experience

Keystone Alg I Practice Tests

All ratings7 ratings
Positive28.6%
Neutral0.0%
Negative71.4%
Written reviews5 reviews
Positive80.0%
Neutral0.0%
Negative20.0%

A

Written reviews1 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

In-app purchases

None

Keystone Alg I Practice Tests

No in-app purchases

3 purchases

A

Subscriptions3
  • ALevel Biology Subscription7 Days trial$1.991 Month
  • ALevel Biology Subscription7 Days trial$7.996 Months
  • ALevel Biology Subscription7 Days trial$9.991 Year

Questions

Is Keystone Alg I Practice Tests free?
Keystone Alg I Practice Tests costs $0.99, with no in-app purchases.
Is A free?
A is free to download, with in-app purchases available.
Which has better reviews, Keystone Alg I Practice Tests or A?
Keystone Alg I Practice Tests is rated higher. Keystone Alg I Practice Tests averages 2.0 out of 5 from 7 ratings, while A averages 1.0 from 1 ratings.
Do Keystone Alg I Practice Tests or A have ads?
Neither Keystone Alg I Practice Tests nor A shows ads.
Which is updated more often, Keystone Alg I Practice Tests or A?
Keystone Alg I Practice Tests ships an update every 2 months, and A every 8 months. Most recently, Keystone Alg I Practice Tests was updated on November 1, 2026 and A on November 3, 2026.

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