Comparison

Lorentz Force Calculator vs Probability

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

Head to head
About

Lorentz Force Calculator

Features
Read full description

Calculate the magnetic Lorentz force with precision and ease. Whether you're a physics student, engineer, or educator, this app gives you a powerful scientific calculator designed for electromagnetic force analysis. Key Features • Real-time Lorentz force calculation • Reverse solve for any variable • Unit conversion with dropdown menus • Interactive sliders for quick parameter adjustment • Scientific notation input and output • Calculation history • Tap-to-copy results • No account required, no ads, fully offline Powerful Formula Engine Compute F = qvB sin(θ) instantly. Enter charge, velocity, magnetic field strength, and angle to get the resulting force in real time. Need to find a different variable? Toggle Reverse Solve mode to calculate any unknown — charge, velocity, magnetic field, or angle — from the remaining known values. Flexible Unit System Work in the units you prefer. Choose from Newtons, millinewtons, micronewtons, or kilonewtons for force. Select Coulombs, elementary charge (e), or nano/micro/millicoulombs for charge. Velocity supports m/s, km/s, km/h, and the speed of light (c). Magnetic field options include Tesla, millitesla, microtesla, and Gauss. All conversions are handled automatically. Calculation History Save important calculations and revisit them anytime. Tap any saved entry to restore all input values and units instantly. Manage your history with swipe-to-delete or clear all. Designed for Learning Formula cards show the active equation and update dynamically when you switch solve modes. The Reference page provides a complete overview of all variables, physical constants, supported units, and example scenarios including electron deflection in CRT tubes and proton motion in cyclotrons. Built for iPhone and iPad The interface adapts to any screen size with a clean scrollable layout on iPhone and an optimized view on iPad. Full dark mode support ensures comfortable use in any environment. Tap any result to copy it to your clipboard. In physics, particularly in electromagnetism, the Lorentz force is the combination of electric and magnetic forces on a point charge due to electromagnetic fields. A particle of charge q moving with velocity v in the presence of an electric field E and a magnetic field B experiences a force. The Lorentz force is the force applied on a charged particle moving with velocity v perpendicularly into a magnetic field. A positively charged particle will be accelerated in the same direction as the electric field E, but will curve perpendicularly to both the instantaneous velocity vector v and the magnetic field B according to the right-hand rule. Lorentz Force Equation: F = q v B sin(α) Where: q - Particle's charge v - Particle's velocity B - Strength of the magnetic field α - Angle between the direction of the particle's trajectory and the direction of the magnetic field F - Resulting force Thank you for your support. Please visit nitrio.com for more apps for your iOS devices.

About

Probability

Enhance your decision-making skills by learning to assess probabilities with this app. It offers formulas for problem-solving, note-taking capabilities, and interactive tools like dice and coin tosses for practical learning.

Highlights
  • Probability assessment
  • Decision-making improvement
  • Problem-solving formulas
  • Personalized notes
  • Dice and coin toss simulations
Features
Read full description

Probability is the key to making decisions under uncertainty, and with our app,  you can improve your ability to assess probabilities and make better decisions in life.  Our app includes different formulas to help you solve problems and make decisions,  as well as the option to take references and write down your own notes about probability.  Plus, you can have fun with probability by tossing dice and coins.

Screenshots

Lorentz Force Calculator4 screens
Probability4 screens

Verdict

The call

The clearest difference is price: Probability at Free against Lorentz Force Calculator's $2.99. Probability also leads on update cadence (every 10 days vs every 26 months) and iOS requirement (14.0 vs 17.6). Lorentz Force Calculator's advantage is in-app purchases (none vs 1). On 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

Probability is free to download; Lorentz Force Calculator costs $2.99 up front. Probability sells 1 one-off in-app purchase. Lorentz Force Calculator asks for nothing beyond the download.

UpkeepUpdate frequency

Lorentz Force Calculator ships an update every 26 months, Probability every 10 days. The most recent releases landed on September 21, 2026 and October 5, 2026 respectively.

Scorecard4 real differences · 6 level
Lorentz Force Calculator versus Probability: the parameters behind the verdict, then further details
ParameterLorentz Force CalculatorProbability
Price$2.99Free — better
Rating—1.0 (1 ratings) — better
Positive reviews—0.0% of reviews
Number of ratings—1 — better
Update frequencyEvery 26 monthsEvery 10 days — better
AdsNoNo
In-app purchasesNo — betterYes
Monetization—Free with in-app purchases
DevicesiPhone, iPadiPhone, iPod
Requires iOS17.614.0 — better
Further details — not scored
Size1 MB166 MB
Age rating4+4+
DeveloperNitrioMan Hung Sun

In-app purchases

None

Lorentz Force Calculator

No in-app purchases

1 purchases

Probability

One-time1
  • Upgrade$0.99

Questions

Is Lorentz Force Calculator free?
Lorentz Force Calculator costs $2.99, with no in-app purchases.
Is Probability free?
Probability is free to download, with in-app purchases available.
Do Lorentz Force Calculator or Probability have ads?
Neither Lorentz Force Calculator nor Probability shows ads.
Which is updated more often, Lorentz Force Calculator or Probability?
Lorentz Force Calculator ships an update every 26 months, and Probability every 10 days. Most recently, Lorentz Force Calculator was updated on September 21, 2026 and Probability on October 5, 2026.

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