Comparison

Logarithms vs Inequality & System Solver

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

Head to head
About

Logarithms

This app generates and solves logarithmic equations and expressions, offering a tool for students and teachers. It includes five difficulty levels, with the option to export LaTeX code for professional scripts. The app works offline and provides a calculator for logarithms to any base.

Highlights
  • Generates unique logarithmic equations and expressions
  • Provides complete step-by-step solutions
  • Supports simplifying and expanding logarithmic expressions
  • Includes a calculator for logarithms to any base
  • Works 100% offline
  • Exports LaTeX code for professional scripts
Features
Read full description

• App to learn LOGARITHMS. • The app creates equations and expressions and SHOWS THE COMPLETE SOLUTION !!! • The expressions and equations are ALWAYS DIFFERENT (based on random numbers). • An ideal tool for the study of mathematics in secondary schools and technical schools. • It is also possible to learn the logarithm laws (simplify and expand expressions). Fundamental to be able to solve the equations. • Includes a calculator for the calculation of logarithms to any base. • Works 100% offline • Also suitable for TEACHERS who need to build logarithmic equations as a task for students; it is possible to export LaTex code to create professional looking scripts (available as in-app purchase). • 5 levels are available: 1) Simplify (Free) 2) Expand (Free) 3) Equations - Easy (Free) 4) Equations - Medium (in app purchase) 5) Equations - Difficult (in app purchase) • Simplify: application of the rules on calculation of logarithms to compact expressions e.g.: log (5) + log (4) - log (2) = log (5 * 4/2) = log (10) • Expand: the opposite of simplify, e.g.: log (x * y/(2z)) = log (x * y) - log (2z) = log (x) + log (y) - [log (2) + log (z)] = log (x) + log (y) - log (2) - log (z) • Equations - Easy: equations that simply require the application of the definition of logarithm and application of calculation rules; are solvable in few steps and are an excellent starting point for more difficult equations. • Equations - Medium: this level presents equations that require a higher number of steps to be resolved. By mastering this level you can achieve medium/good review. • Equations - Hard: this is a level where logarithmic equations are presented that eventually leads to quadratic equations using a variable substitution, or are tricky. It also present some equations with logarithms to different bases and equations that require an excellent knowledge of the topic. By mastering this level excellent exam results are highly likely :-)

About

Inequality & System Solver

This app provides step-by-step solutions for inequalities and systems of inequalities. It includes practice exercises, theory pages, and a dedicated math keyboard for easy input. Ideal for students and math enthusiasts seeking to understand and solve mathematical challenges.

Highlights
  • Step-by-step inequality solutions
  • Systems of inequalities solver
  • Practice exercises with solutions
  • Integrated theory pages
  • Dedicated math keyboard
Features
Read full description

Turn your device into the perfect math study companion. "Inequality & System Solver" is the ultimate app that guides you through solving inequalities, helping you understand the logic behind the numbers and always get the right results. Here's everything our app can do for you: ▶ STEP-BY-STEP SOLUTIONS Get the solution in an instant. But we don't stop at the final result: the app shows you all the logical steps in detail to solve polynomial, rational, radical, exponential, and absolute value inequalities, and many more. It's the perfect tool to understand your mistakes, learn the correct method, and get fully prepared for homework and exams. ▶ SYSTEMS OF INEQUALITIES Easily solve systems with multiple inequalities. The app supports step-by-step solving by clearly showing the sign analysis and the intersection of solutions, allowing you to study and apply the exact method taught in class. ▶ INTEGRATED MATH KEYBOARD Use our dedicated interface to easily type variables, fractions, exponents, roots, parentheses, greater than and less than symbols, and much more. And if you need to paste an inequality or prefer to use your device's standard keyboard, you can switch between modes in a snap. ▶ GUIDED EXERCISES FOR PRACTICE Test your skills with a rich library of ready-to-solve inequalities, sorted by difficulty and complete with detailed solutions, so you can strengthen your math foundation whenever you want. ▶ THEORY AND RULES ALWAYS AT HAND Having a memory lapse? Review fundamental principles, sign rules, and solving methods right in the app. Everything you need to know about inequality algebra is in one place. ▶ CLEAN INTERFACE AND DARK THEME No complications. The UI is simple, intuitive, and includes an elegant dark theme, specifically optimized to prevent eye strain during your evening study sessions. ▶ GUARANTEED RELIABILITY Our algorithms are tested and highly optimized to ensure accurate and instant calculations every time, even for the most complex systems and inequalities. ▶ CONSTANT UPDATES AND SUPPORT The app is regularly updated to always offer you the best performance and new features. Download "Inequality & System Solver" today and take your math skills to the next level!

Screenshots

Logarithms4 screens
Inequality & System Solver4 screens

Verdict

The call

The clearest difference is review sentiment: Inequality & System Solver at 100% against Logarithms's 57%. Inequality & System Solver also leads on rating (4.2 vs 3.2) and in-app purchases (none vs 3). Logarithms's advantage is ads (none vs shown) and iOS requirement (12.0 vs 15.0). On price, ratings volume 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. Logarithms sells 3 one-off in-app purchases. Inequality & System Solver asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Inequality & System Solver holds the better App Store score, 4.2 against 3.2. Both are backed by a comparable volume of ratings — 18 and 9 respectively. Written reviews point the same way: 57% of Logarithms's written reviews are positive against 100% of Inequality & System Solver's.

UpkeepUpdate frequency

Logarithms ships an update every 5 months, Inequality & System Solver every 2 months. The most recent releases landed on September 10, 2026 and September 3, 2026 respectively.

Scorecard7 real differences · 3 level
Logarithms versus Inequality & System Solver: the parameters behind the verdict, then further details
ParameterLogarithmsInequality & System Solver
PriceFreeFree
Rating3.2 (18 ratings)4.2 (9 ratings) — better
Positive reviews57.1% of reviews100.0% of reviews — better
Number of ratings18 — better9
Update frequencyEvery 5 monthsEvery 2 months — better
AdsNo — betterYes
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesAd-supported — better
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS12.0 — better15.0
Further details — not scored
Size7 MB47 MB
Age rating4+4+
DeveloperFrancesco GrassiFrancesco Varotti

Customer experience

Logarithms

All ratings18 ratings
Positive50.0%
Neutral11.1%
Negative38.9%
Written reviews21 reviews
Positive57.1%
Neutral0.0%
Negative42.9%

Inequality & System Solver

All ratings9 ratings
Positive77.8%
Neutral11.1%
Negative11.1%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

3 purchases

Logarithms

One-time3
  • Unlocks the Medium Level$0.99
  • Unlocks the Difficult Level$0.99
  • export LaTeX$1.99
None

Inequality & System Solver

No in-app purchases

Questions

Is Logarithms free?
Logarithms is free to download, with in-app purchases available.
Is Inequality & System Solver free?
Inequality & System Solver is free to download, with no in-app purchases.
Which has better reviews, Logarithms or Inequality & System Solver?
Inequality & System Solver is rated higher. Logarithms averages 3.2 out of 5 from 18 ratings, while Inequality & System Solver averages 4.2 from 9 ratings.
Do Logarithms or Inequality & System Solver have ads?
Inequality & System Solver shows ads; Logarithms does not.
Which is updated more often, Logarithms or Inequality & System Solver?
Logarithms ships an update every 5 months, and Inequality & System Solver every 2 months. Most recently, Logarithms was updated on September 10, 2026 and Inequality & System Solver on September 3, 2026.

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