Comparison

Physics Formulas Lite vs 23 Equations

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

Head to head
About

Physics Formulas Lite

Quickly access and reference physics formulas for study and work. Features include calculation tools, multi-language support, a favorites folder, and formula sharing. Search and add custom formulas and tools.

Highlights
  • Formula reference by category
  • In-app calculation tools
  • Multi-language support
  • Favorites folder for quick access
  • Formula sharing functionality
  • Searchable formula database
  • Add custom formulas and tools
Features
Read full description

From the success of Maths Formulas app, Physics Formulas has been developed and released to help users quickly refer to any Physics formulas for their study and work. This app displays most popular formulas in seven categories: - Mechanics - Electricity - Thermal physics - Periodic motion - Optics - Atomic physics - Constants This app has all functions to help users use the app conveniently - Tools: users can input data and the app will calculate some popular physics problems. - Supporting multiple languages: it's the best to read in your mother language as well as in English to expand your language skills. This app supports English, Vietnamese, Chinese (Trad/Simp), Turkish, Spanish, German, French, Portuguese, Russian, Indonesian, Persian, Italian, Hindi and Arabic. More languages to come soon. - Favorite folder: save frequently used formulas in a favorite folder to quickly access to them. - Sharing: touch and share a formula to friends via message, email or Facebook. - Searching: users can type key words in top of the screen to quickly find a formula. - Add your own formulas or notes in "Favorite" section. - Add your own customized tools in "Tools" section (unlimited number of formulas and variables for Full version). This is the essential app for everybody especially students, engineers and scientists.

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.

Screenshots

Physics Formulas Lite4 screens
23 Equations4 screens

Verdict

The call

The clearest difference is review sentiment: Physics Formulas Lite at 86% against 23 Equations's 48%. Physics Formulas Lite also leads on in-app purchases (none vs 7) and ratings volume (60 vs 1). 23 Equations's advantage is update cadence (every 2 weeks vs every 4 months) and rating (5.0 vs 4.6). On price, 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. 23 Equations sells 7 one-off in-app purchases. Physics Formulas Lite asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

23 Equations holds the better App Store score, 5.0 against 4.6. That said, the two scores are not equally well evidenced: Physics Formulas Lite has 60 ratings behind it against 1, so its average is the more settled of the two. Written reviews complicate that: 86% of Physics Formulas Lite's written reviews are positive against 48% of 23 Equations's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

Physics Formulas Lite ships an update every 4 months, 23 Equations every 2 weeks. The most recent releases landed on September 23, 2026 and September 26, 2026 respectively.

Scorecard7 real differences · 3 level
Physics Formulas Lite versus 23 Equations: the parameters behind the verdict, then further details
ParameterPhysics Formulas Lite23 Equations
PriceFreeFree
Rating4.6 (60 ratings)5.0 (1 ratings) — better
Positive reviews85.7% of reviews — better47.6% of reviews
Number of ratings60 — better1
Update frequencyEvery 4 monthsEvery 2 weeks — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.19.3 — better
Further details — not scored
Size43 MB143 MB
Age rating4+4+
DeveloperNSC CO. PTY LTDNick Whitehurst

Customer experience

Physics Formulas Lite

All ratings60 ratings
Positive91.7%
Neutral1.7%
Negative6.7%
Written reviews14 reviews
Positive85.7%
Neutral0.0%
Negative14.3%

23 Equations

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

In-app purchases

None

Physics Formulas Lite

No 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

Questions

Is Physics Formulas Lite free?
Physics Formulas Lite is free to download, with no in-app purchases.
Is 23 Equations free?
23 Equations is free to download, with in-app purchases available.
Which has better reviews, Physics Formulas Lite or 23 Equations?
23 Equations is rated higher. Physics Formulas Lite averages 4.6 out of 5 from 60 ratings, while 23 Equations averages 5.0 from 1 ratings.
Do Physics Formulas Lite or 23 Equations have ads?
Neither Physics Formulas Lite nor 23 Equations shows ads.
Which is updated more often, Physics Formulas Lite or 23 Equations?
Physics Formulas Lite ships an update every 4 months, and 23 Equations every 2 weeks. Most recently, Physics Formulas Lite was updated on September 23, 2026 and 23 Equations on September 26, 2026.

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