Comparison

eXpimal vs Logarithm Solver

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

Head to head
About

eXpimal

This app provides advanced tools for creating truth tables, simplifying Boolean functions, and plotting logical schemes. It supports various methods for minimization and polynomial representation, with detailed results and comments.

Highlights
  • Truth table creation
  • DNF, CNF, PDNF, PCNF calculation
  • Zhegalkin polynomial generation
  • Karnaugh map plotting
  • Boolean function minimization
  • Logical scheme plotting
  • Ladder diagram creation
Features
Read full description

The most functional math logic calculator. This application has the functions as follows: - creating truth tables; - finding DNF, CNF, PDNF and PCNF; - finding Zhegalkin polynomial (Undetermined coefficients method and Pascal's triangle method); - making a Karnaugh map; - minimizing Boolean function with equivalence conversion (both briefly and in details); - minimize partially defined functions; - belonging to the Post classes; - plotting logical schemes (both IEC and ANSI schemes); - plotting ladder diagram; - minimizing functions using McCluskey method. Boolean functions may be displayed as multiple characters. Unary operation "negation" may be displayed either as a single character or in the form of an overline. Maximum number of variables in the function is limited by 6. Maximum number of function-embedded negations is limited by 5. Maximum number of characters in the function is limited by 64. Karnaugh maps, PCNF and PDNF functions, Zhegalkin polynomial and the McCluskey method only may be used for operating a value vector. The modulus of vector shall contain 4, 8, 16, 32, or 64 characters. The values of 0 and 1 may be used in this function but it will be subject to simplification only. The implication is inadmissible for plotting a logical scheme. No ads pop up. This application demonstrates intuitively understandable and trouble-free operations. All results are shown in details along with comments.

About

Logarithm Solver

Instantly solve math homework and prepare for exams with step-by-step logarithm solutions. This free app provides 24/7 access to calculations and helpful learning resources. Optional purchase options are available for high-volume users.

Highlights
  • Step-by-step logarithm solutions
  • Instant calculation of any variable
  • Overview of key logarithm rules
  • Curated learning videos
  • Feedback for incorrect inputs
  • Manage saved solutions
Features
Read full description

Finish your homework instantly. Prepare for exams stress-free. Free, complete step-by-step solutions. Choose an equation and calculate any variable. HOW IT WORKS Enter your values in the appropriate fields and get started. You’ll receive the solution instantly and can share it with friends or classmates. YOUR PERSONAL DATA We don’t need it. Only anonymized data is collected, for example: - which features are used - how many solutions are generated This helps us improve. No conclusions can be drawn about you. COSTS Everything is free to use. 24/7 access to your solutions. All solution steps always remain complete. If you need many solutions in a short time, various purchase options are available. EXTRAS - Overview of key logarithm rules - curated learning videos - feedback for incorrect inputs - manage your own solutions - app introduction CONTACT Questions and feedback via Discord or directly in the app review.

Screenshots

eXpimal4 screens
Logarithm Solver4 screens

Verdict

The call

The clearest difference is price: Logarithm Solver at Free against eXpimal's $2.99. Logarithm Solver also leads on rating (5.0 vs 2.3). eXpimal's advantage is in-app purchases (none vs 8) and ratings volume (3 vs 1). On update cadence, 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

Logarithm Solver is free to download; eXpimal costs $2.99 up front. Logarithm Solver sells 8 one-off in-app purchases. eXpimal asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Logarithm Solver holds the better App Store score, 5.0 against 2.3. Both are backed by a comparable volume of ratings — 3 and 1 respectively.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 3 weeks. The most recent releases landed on September 21, 2026 and August 26, 2026 respectively.

Scorecard6 real differences · 4 level
eXpimal versus Logarithm Solver: the parameters behind the verdict, then further details
ParametereXpimalLogarithm Solver
Price$2.99Free — better
Rating2.3 (3 ratings)5.0 (1 ratings) — better
Positive reviews54.5% of reviews—
Number of ratings3 — better1
Update frequencyEvery 3 weeksEvery 3 weeks
AdsNoNo
In-app purchasesNo — betterYes
MonetizationPaidFree with in-app purchases — better
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS12.1 — better15.0
Further details — not scored
Size10 MB180 MB
Age rating4+4+
DeveloperMaksim DmitrievGlindemann, Sennoun, Langer GbR

Customer experience

eXpimal

All ratings3 ratings
Positive33.3%
Neutral0.0%
Negative66.7%
Written reviews11 reviews
Positive54.5%
Neutral18.2%
Negative27.3%

Logarithm Solver

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

eXpimal

No in-app purchases

8 purchases

Logarithm Solver

One-time8
  • +30 User Tokens$0.29
  • +1 Convenience Token / 6h, max. +2$0.59
  • +2 Convenience Tokens / 6h, max. +4$0.99
Show 5 more
  • +150 User Tokens$0.99
  • +300 User Tokens$1.49
  • +4 Convenience Tokens / 6h, max. +8$1.59
  • Remove Ads$1.99
  • Lifetime Access$1.99

Questions

Is eXpimal free?
eXpimal costs $2.99, with no in-app purchases.
Is Logarithm Solver free?
Logarithm Solver is free to download, with in-app purchases available.
Which has better reviews, eXpimal or Logarithm Solver?
Logarithm Solver is rated higher. eXpimal averages 2.3 out of 5 from 3 ratings, while Logarithm Solver averages 5.0 from 1 ratings.
Do eXpimal or Logarithm Solver have ads?
Neither eXpimal nor Logarithm Solver shows ads.
Which is updated more often, eXpimal or Logarithm Solver?
eXpimal ships an update every 3 weeks, and Logarithm Solver every 3 weeks. Most recently, eXpimal was updated on September 21, 2026 and Logarithm Solver on August 26, 2026.

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