Comparison

Physics Questions vs Voltages S

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

Head to head
About

Physics Questions

Features
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Best tool for school or college for practising all those physics questions! This app will help you to learn about the different concepts in physics. With separate modules for each subject area, you can practice: ---> Electricity ---> Electronics ---> Electromagnetism ---> Force & Energy ---> Motion ---> Optics ---> Radioactivity & Thermodynamics ---> Special Relativity ---> Waves & Particles At the press of a button, you can be prompted with the correct formula as well as being shown the worked solution. Want a feature to be added? Let me know at apps@sionnagh.com

About

Voltages S

Features
Read full description

This app invites to explorations into electricity and the serial circuit. You can freely explore a simulated serial circuit in order to find out electricity facts. The simulation not only reflects real circuit behaviour, but also provides insights into electron flow that real experiments cannot provide. "Wrong" usage can be tried out without fear of destroying components while clearly warning about potential destroyment. Experimentation is guided by the following booklets provided gerin the app: - Knowledge: learn facts about the circuit - Puzzles: solve puzzles on levels from beginner to expert - Experiments: explore unusual situations - Tricks: achieve surprising results The booklets provide helpful hints if tasks cannot be solved on their own. The app greatly supports class room learning as well as self motivated learning and explorations.

Screenshots

Physics Questions4 screens
Voltages S4 screens

Verdict

The call

The clearest difference is price: Physics Questions at Free against Voltages S's $0.99. Physics Questions also leads on update cadence (every 4 days vs every 7 months) and iOS requirement (12.0 vs 17.6). Voltages S's advantage is in-app purchases (none vs 9) and ads (none vs shown). On device support there is nothing between them.

Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS

CostPrice ยท In-app purchases ยท Ads ยท Monetization

Physics Questions is free to download; Voltages S costs $0.99 up front. Physics Questions sells 9 one-off in-app purchases. Voltages S asks for nothing beyond the download.

UpkeepUpdate frequency

Physics Questions ships an update every 4 days, Voltages S every 7 months. The most recent releases landed on October 6, 2026 and October 21, 2026 respectively.

Scorecard5 real differences ยท 1 level
Physics Questions versus Voltages S: the parameters behind the verdict, then further details
ParameterPhysics QuestionsVoltages S
PriceFree โ€” better$0.99
Update frequencyEvery 4 days โ€” betterEvery 7 months
AdsYesNo โ€” better
In-app purchasesYesNo โ€” better
DevicesiPhone, iPad, iPod โ€” betteriPhone, iPad
Requires iOS12.0 โ€” better17.6
Further details โ€” not scored
Size20 MB2 MB
Age rating4+4+
DeveloperMichael ToddFrank Kowalewski

In-app purchases

9 purchases

Physics Questions

One-time9
  • Electricity Questions$1.99
  • Electronics Questions$1.99
  • Electromagnetism Questions$1.99
Show 6 more
  • Force & Energy Questions$1.99
  • Motion Questions$1.99
  • Optics Questions$1.99
  • Radioactivity & Thermodynamics$1.99
  • Special Relativity Questions$1.99
  • Waves & Particles Questions$1.99
None

Voltages S

No in-app purchases

Questions

Is Physics Questions free?
Physics Questions is free to download, with in-app purchases available.
Is Voltages S free?
Voltages S costs $0.99, with no in-app purchases.
Do Physics Questions or Voltages S have ads?
Physics Questions shows ads; Voltages S does not.
Which is updated more often, Physics Questions or Voltages S?
Physics Questions ships an update every 4 days, and Voltages S every 7 months. Most recently, Physics Questions was updated on October 6, 2026 and Voltages S on October 21, 2026.

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