Comparison

23 Equations vs PhysQuiz

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

Head to head
About

23 Equations

Master GCSE and IGCSE Physics equations with interactive learning and practice questions. The app provides instant feedback, model answers, and timed challenges to improve recall and application. Teachers can create and monitor student tests for effective revision planning.

Highlights
  • Learn physics equations by heart
  • Practice questions with step-by-step help
  • Model answers for improvement
  • Timed challenges and games
  • Teacher-created tests for students
  • Monitor student progress and answers
  • Index card-style equation reference
Features
Read full description

For Students: Learn by heart all of the Physics equations you need for your GCSE and IGCSE, then use them to answer questions, with help available at every step. Questions are made by “smart models” so they can show you examples and help you in other ways. They can also show you a model answer afterwards to help you improve next time. Even if you don’t have to learn the equations, you will do better if you know them by heart and can remember the correct units for each variable. Calculations are still going to make up at least 30% of the Physics exams so the better you know the equations, the better your grade is going to be. Get this app and have a virtual pack of index cards always at your fingertips. All the important information is there, including the units. Click on the Q and try practice questions to test yourself. Start a game and try and beat the clock. The questions get harder the better you do. For Teachers: Actively set the tests for your students to take. Monitor, analyse and view the answers your students give for these tests without any marking to do. Use the information to plan future lessons or setup further tests to help with revision. This is great for homework and for revision programmes leading up to exams. This is the School Room and is available through an in-app purchase. Privacy: In the free section of the app, no data is collected about you or your activity at all. The School Room section uses information provided by your teachers to allow you to log in. This means a one-way encrypted email address. You cannot be personally identified from this information.

About

PhysQuiz

Practice AQA GCSE Physics with over 800 multiple-choice questions covering the entire syllabus. Includes revision notes, hints, and progress tracking to identify weak areas and boost your grade. Collectible physicist cards add a fun element to your learning journey.

Highlights
  • 800+ multiple-choice questions
  • Revision notes, hints, and tips
  • Progress tracking
  • Identify weak areas
  • Collectible physicist cards
  • Designed for AQA GCSE Physics
Read full description

Testing yourself is a fantastic way to learn - and fun! This app contains over 800 multiple choice questions from all aspects of the syllabus.  It also has revision notes, hints and tips. Designed for combined and single subject AQA GCSE Physics courses. Using the app will test your knowledge and reasoning at all levels, and help you identify your weak areas. Continued use will boost your grade by consolidating and widening your existing knowledge - the foundation to all exam questions. See yourself advance with progress tracking, and check how far you need to go to the next level. Also, collect famous physicists collector's cards as you go. These are hidden behind certain questions. Once uncovered you can view these in the Gallery - there are 12 to collect, and get harder to find the further you progress!

Screenshots

23 Equations4 screens
PhysQuiz4 screens

Verdict

The call

23 Equations and PhysQuiz both sit at 5.0 stars, but that hides the real split: 100% of PhysQuiz's written reviews are positive against 48% of 23 Equations's. PhysQuiz also leads on ratings volume (18 vs 1). 23 Equations's advantage is update cadence (every 2 weeks vs every 6 weeks) and iOS requirement (9.3 vs 15.6). On price, rating, ads and in-app purchases 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. 23 Equations sells 7 one-off in-app purchases and PhysQuiz sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 5.0 for 23 Equations against 4.9 for PhysQuiz. That said, the two scores are not equally well evidenced: PhysQuiz has 18 ratings behind it against 1, so its average is the more settled of the two. Written reviews are what separate them: 48% of 23 Equations's written reviews are positive against 100% of PhysQuiz's.

UpkeepUpdate frequency

23 Equations ships an update every 2 weeks, PhysQuiz every 6 weeks. The most recent releases landed on October 12, 2026 and October 20, 2026 respectively.

Scorecard4 real differences · 6 level
23 Equations versus PhysQuiz: the parameters behind the verdict, then further details
Parameter23 EquationsPhysQuiz
PriceFreeFree
Rating5.0 (1 ratings) — better4.9 (18 ratings)
Positive reviews47.6% of reviews100.0% of reviews — better
Number of ratings118 — better
Update frequencyEvery 2 weeks — betterEvery 6 weeks
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS9.3 — better15.6
Further details — not scored
Size143 MB58 MB
Age rating4+4+
DeveloperNick WhitehurstRichard Melville

Customer experience

23 Equations

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews21 reviews
Positive47.6%
Neutral19.0%
Negative33.3%

PhysQuiz

All ratings16 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews47 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Bugs and requests

23 Equations

Not enough reviews yet to summarise bugs or requests.

PhysQuiz

Requested features

6 requests
  • Make all content free
  • Add written questions
  • Develop full-screen iPad version
  • Break down units into sub-units
  • Branch out to maths quiz
Show 1 more
  • Add difficulty rating for questions

In-app purchases

7 purchases

23 Equations

One-time7
  • Individual: Extra features$1.99
  • School Room, 2022 Exams (S)$39.99
  • School Room, 2023 Exams (S)$39.99
Show 4 more
  • School Room, 2022 Exams (M)$69.99
  • School Room, 2023 Exams (M)$74.99
  • School Room, 2022 Exams (L)$99.99
  • School Room, 2023 Exams (L)$99.99
1 purchases

PhysQuiz

One-time1
  • PhysQuiz Pro$3.99

Questions

Is 23 Equations free?
23 Equations is free to download, with in-app purchases available.
Is PhysQuiz free?
PhysQuiz is free to download, with in-app purchases available.
Which has better reviews, 23 Equations or PhysQuiz?
23 Equations is rated higher. 23 Equations averages 5.0 out of 5 from 1 ratings, while PhysQuiz averages 4.9 from 18 ratings.
Do 23 Equations or PhysQuiz have ads?
Neither 23 Equations nor PhysQuiz shows ads.
Which is updated more often, 23 Equations or PhysQuiz?
23 Equations ships an update every 2 weeks, and PhysQuiz every 6 weeks. Most recently, 23 Equations was updated on October 12, 2026 and PhysQuiz on October 20, 2026.

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