Comparison

Mars Info vs Logarithmic Identities PRO

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

Head to head
About

Mars Info

Explore the Red Planet with an interactive 3D globe. Discover and learn about key Martian locations like volcanoes, craters, and mountains. View detailed information including size and coordinates for each point of interest.

Highlights
  • Interactive 3D globe with gesture controls
  • Pinpoint 80+ interesting Martian locations
  • Detailed information on locations
  • Zoom, rotate, and tilt controls
  • List of selectable locations
Features
Read full description

Explore Mars using simple gestures to rotate a globe, tilt, zoom and select locations. Credits - Viking Orbiter MDIM 2.1 map of Mars - NASA NASA's Scientific Visualization Studio: GMM-3 MOLA (Mars Orbiter Laser Altimeter) Topography map GMM-3 Free-Air Mars Gravity map GMM-3 Bouguer Mars Gravity map GMM-3 Crustal Mars Thickness map Features: - Ability to pinpoint about 80 the most interesting areas on the map of Mars, including volcanos, craters, plains, mountains, spacecrafts. - Displaying some information about the location, such as its name, type, short description, size and coordinates. - Ability to select locations on the 3D globe and on the plain list. - Zoom, rotation, tilt of the globe.

About

Logarithmic Identities PRO

Features
Read full description

In many cases you can calculate the logarithm by transforming it and changing its shape. This app focuses on the basic operations: addition, subtraction, multiplication, division and changing the base of the logarithm. You need to enter all values and the app shows the usage of certain calculation rules of the logarithm step by step. There you see how the transformation of the logarithm may lead to an easier way of calculation but with the same results. An infographic contains all calculation rules of the logarithm. Decimals, fractions and negative values are supported. The solution is shown step by step. All calculations are stored in the history. The final solution can be shared. [ Contents ] - modes for logarithm (addition, subtraction, multiplication, division, change of base) - all logarithm values must be entered - results are calculated and shown in detail - the application of the transformations of the logarithm - full list of logarithm rules - history function to save the input - detailed solution - negative values, decimal numbers and fractions are supported - no ads! [ Usage ] - there are fields for entering values using a special keyboard - press the check mark button at the bottom right to start the calculation - if values are missing, the relevant field is highlighted in yellow - if the values are wrong, the affected field will be highlighted in red - the entries in the history can be deleted or sorted - if you select an entry in the history, it will be automatically loaded for the calculation - the whole history can be deleted by pressing a button - solutions can be shared - touching the question mark button displays information about the topic

Screenshots

Mars Info4 screens
Logarithmic Identities PRO4 screens

Verdict

The call

The clearest difference is price: Logarithmic Identities PRO at $1.99 against Mars Info's $6.99. Logarithmic Identities PRO also leads on update cadence (monthly vs every 2 months) and iOS requirement (15.0 vs 17.0). On ads, in-app purchases 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

Mars Info costs $6.99 and Logarithmic Identities PRO $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Mars Info ships an update every 2 months, Logarithmic Identities PRO monthly. The most recent releases landed on November 2, 2026 and November 7, 2026 respectively.

Scorecard3 real differences · 7 level
Mars Info versus Logarithmic Identities PRO: the parameters behind the verdict, then further details
ParameterMars InfoLogarithmic Identities PRO
Price$6.99$1.99 — better
Rating4.3 (159 ratings) — better—
Positive reviews41.7% of reviews—
Number of ratings159 — better—
Update frequencyEvery 2 monthsMonthly — better
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPad, Mac, Apple TV — betteriPhone, iPad, iPod
Requires iOS17.015.0 — better
Further details — not scored
Size212 MB182 MB
Age rating4+4+
DeveloperViktor GoltvyanytsyaGlindemann, Sennoun, Langer GbR

In-app purchases

None

Mars Info

No in-app purchases

None

Logarithmic Identities PRO

No in-app purchases

Questions

Is Mars Info free?
Mars Info costs $6.99, with no in-app purchases.
Is Logarithmic Identities PRO free?
Logarithmic Identities PRO costs $1.99, with no in-app purchases.
Do Mars Info or Logarithmic Identities PRO have ads?
Neither Mars Info nor Logarithmic Identities PRO shows ads.
Which is updated more often, Mars Info or Logarithmic Identities PRO?
Mars Info ships an update every 2 months, and Logarithmic Identities PRO monthly. Most recently, Mars Info was updated on November 2, 2026 and Logarithmic Identities PRO on November 7, 2026.

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