Comparison

Physics Answers vs Sudoku Master Lt

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

Head to head
About

Physics Answers

Features
Read full description

Biobrain is an essential learning tool for anyone studying Physics! Or anyone who wants to know more about Physics! What makes it great? Biobrain allows you to not only test yourself on key knowledge but also provides detailed learning material with comprehensive diagrams. Biobrain makes learning fun! Biobrain takes the need away from carrying heavy textbooks with you and has the content in a simple and easy to use format. Who needs a tutor when you have Biobrain!! Study anywhere, anytime with Biobrain. _________________________________________________ WHY YOU WILL LOVE BIOBRAIN… ESSENTIAL LEARNING MATERIAL AT YOUR FINGERTIPS Choose a topic and work your way through the learning material and quizzes that assess your understanding. PERFECT TOOL TO USE TO REVISE FOR A TEST OR EXAM With thousands of questions, it’s a great way to revise before class tests. YOUR QUIZ RESULTS ARE TRACKED Previous quiz results are stored to enable you to track your progress throughout your course. YOUR OWN COMPREHENSIVE GLOSSARY AT YOUR FINGERTIPS Thousands of key biological terms are defined and illustrated. LEARNING MATERIAL IS GRADED OVER THREE LEVELS Master level 1 content and test yourself at Level 2 or 3. YOUR ABILITY TO REPEAT QUIZZES The opportunity to quickly and easily repeat a quiz that you need to improve your result on. _________________________________________________ USEFUL FOR PHYSICS STUDENTS STUDYING Secondary school Physics completing the following courses: • NGSS Physics • AP Physics • High school Physics University students studying: • AP Physics • Physical Sciences • Physics • Biomed Science • Medicine • Science _________________________________________________ POWERFUL FEATURES AT YOUR FINGERTIPS Biobrain packs all these capabilities and so much more: • Ability to search for a glossary term. • Search the learning material to find a topic you need to brush up on. • Comprehensive biological diagrams to help you understand difficult concepts. • Multiple types of quiz questions – multiple choice, true / false, short answer, drop down and many more. • Hints for quiz questions. • Multiple attempts at questions. • Quiz questions graded over three levels. • Excellent scientific diagrams. • Learning material included links to an illustrated glossary to assist learning without leaving the screen. • Review answers to questions. This unmatched set of features combines with an intuitive interface to make Physics Answers – AP Physics an essential app for secondary school and university Physics students. Download now!! _________________________________________________ FOR INSPIRATION & SUPPORT: > Instagram: @biobrain_app > Email: support@biobrain.com.au > Web: http://www.biobrain.com.au A subscription ton Biobrain allows you to access all the content. You can subscribe and pay through your iTunes account. Payment will be charged to your iTunes account at confirmation of purchase. Your subscription will automatically renew unless cancelled 24 hours before the end of the current period. Your account will be charged for the renewal within 24 hours prior to the end of the current period. Subscriptions may be managed by the user and auto-renew may be turned off after purchase by going to the “Manage Subscription’ page in settings. Any unused. Portion of the free trial period, if offered, will be forfeited when the user purchases a subscription to that publication, where applicable. The subscription will renew at the same cost. Terms of Service: https://biobrain.com.au/terms-of-service/ Privacy policy: https://www.biobrain.com.au/privacy

About

Sudoku Master Lt

Enjoy an endless supply of Sudoku puzzles with 9 difficulty levels. Save your progress, track your stats, and challenge friends in battle mode. Perfect for travel or passing time.

Highlights
  • Unlimited Sudoku puzzles
  • 9 difficulty levels
  • Save and resume games
  • Track playtime and mistakes
  • Battle mode for multiplayer
  • Offline play
Features
Read full description

Sudoku Master Lt gives you virtually unlimited number of Sudoku puzzles to solve right on your iPhone or iPad. There are 9 difficulty levels for the puzzles, with 1 the easiest and 9 the most difficult. You can select a comfortable difficulty level to play with. The last Sudoku game will be saved, so you can pause the game or leave the app and come back later to continue solving the puzzle whenever you are free. Your play time and number of mistakes will be recorded so that you can track your progress in developing Sudoku-solving skills. The app now has battle mode, where you and your friends/family can compete with each other on the same puzzle. The app is truly a good companion for travels or just passing time.

Screenshots

Physics Answers4 screens
Sudoku Master Lt4 screens

Verdict

The call

The clearest difference is in-app purchases: Sudoku Master Lt at none against Physics Answers's 2. Physics Answers's advantage is ads (none vs shown) and update cadence (every 3 months vs every 10 months). On price 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. Physics Answers sells 2 in-app purchases, starting at $9.99 per month. Sudoku Master Lt asks for nothing beyond the download.

UpkeepUpdate frequency

Physics Answers ships an update every 3 months, Sudoku Master Lt every 10 months. The most recent releases landed on September 9, 2026 and September 13, 2026 respectively.

Scorecard4 real differences · 6 level
Physics Answers versus Sudoku Master Lt: the parameters behind the verdict, then further details
ParameterPhysics AnswersSudoku Master Lt
PriceFreeFree
Rating—3.0 (1 ratings) — better
Positive reviews—0.0% of reviews
Number of ratings—1 — better
Update frequencyEvery 3 months — betterEvery 10 months
AdsNo — betterYes
In-app purchasesYesNo — better
Monetization—Ad-supported
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS11.4 — better14.0
Further details — not scored
Size111 MB8 MB
Age rating4+4+
DeveloperBiobrain Learning Pty LtdOptimization Lab LLC

In-app purchases

2 purchases

Physics Answers

Subscriptions2
  • All Content$9.991 Month
  • All Content$49.991 Year
None

Sudoku Master Lt

No in-app purchases

Questions

Is Physics Answers free?
Physics Answers is free to download, with in-app purchases available.
Is Sudoku Master Lt free?
Sudoku Master Lt is free to download, with no in-app purchases.
Do Physics Answers or Sudoku Master Lt have ads?
Sudoku Master Lt shows ads; Physics Answers does not.
Which is updated more often, Physics Answers or Sudoku Master Lt?
Physics Answers ships an update every 3 months, and Sudoku Master Lt every 10 months. Most recently, Physics Answers was updated on September 9, 2026 and Sudoku Master Lt on September 13, 2026.

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