Comparison

PE.Mech vs 3DPhyS

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

Head to head
About

PE.Mech

Features
Read full description

This app is aimed at mechanics part and includes 11 experiments about: kinematics, Newton's laws of motion, work and energy, momentum and impulse, periodic motion etc. It has some features: 1. You can set ideal conditions, for example: friction=0, air resistance=0, any gravity acceleration; 2. Show changing physical values by function diagram, free body diagram, energy diagram etc in real time to compensate for the lack of real experiments; 3. You can set any reasonable parameters to see different results, and calculate them by the descriptions to test your understanding; 4. Suitable for use in high school and college students; I hope this app can help you in your physics learning.

About

3DPhyS

Explore fundamental physics concepts through interactive simulations. Adjust parameters like initial velocity and bounce coefficient to understand phenomena like free fall, projectile motion, and circular motion. This app supports learning in multiple languages.

Highlights
  • Interactive physics simulations
  • Adjustable experiment parameters
  • Multiple physics experiment modules
  • Multilingual interface
  • Free to download and use
Features
Read full description

3DPhyS offers a fun way to learn physics using Physics Simulator! Localized the home scene into Japanese, English, Chinese, Spanish, German, French, Portuguese, Russian, Indonesian, Arabic, and Korean! Some parts are still in Japanese, but you can still simulate the game even if you do not understand Japanese! The following courses of experiments are available Free Fall Vertical projection Horizontal projection Oblique projection Monkey Hunting Bounce coefficient Object sliding on a slope Buoyancy force Frictional force Momentum conservation law for two-object collision (bounce coefficient) Momentum conservation law for splitting Circular motion Circular motion under gravity Single swing of pendulum Universal gravitation In each experiment, you can freely change parameters such as initial velocity and bounce coefficient! Please use this app to improve your performance! If you have any comments or typos, please feel free to contact us.

Screenshots

3DPhyS3 screens

Verdict

The call

The clearest difference is price: 3DPhyS at Free against PE.Mech's $0.99. 3DPhyS also leads on update cadence (fortnightly vs every 2 months) and device support (3 vs 1). PE.Mech's advantage is ads (none vs shown). On 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

3DPhyS is free to download; PE.Mech costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

PE.Mech ships an update every 2 months, 3DPhyS fortnightly. The most recent releases landed on September 30, 2026 and October 4, 2026 respectively.

Scorecard5 real differences · 3 level
PE.Mech versus 3DPhyS: the parameters behind the verdict, then further details
ParameterPE.Mech3DPhyS
Price$0.99Free — better
Positive reviews—80.0% of reviews
Update frequencyEvery 2 monthsFortnightly — better
AdsNo — betterYes
In-app purchasesNoNo
Monetization—Ad-supported
DevicesiPadiPhone, iPad, iPod — better
Requires iOS15.012.0 — better
Further details — not scored
Size35 MB176 MB
Age rating4+4+
Developer巍 顾Sota Takasugi

In-app purchases

None

PE.Mech

No in-app purchases

None

3DPhyS

No in-app purchases

Questions

Is PE.Mech free?
PE.Mech costs $0.99, with no in-app purchases.
Is 3DPhyS free?
3DPhyS is free to download, with no in-app purchases.
Do PE.Mech or 3DPhyS have ads?
3DPhyS shows ads; PE.Mech does not.
Which is updated more often, PE.Mech or 3DPhyS?
PE.Mech ships an update every 2 months, and 3DPhyS fortnightly. Most recently, PE.Mech was updated on September 30, 2026 and 3DPhyS on October 4, 2026.

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