Comparison

Power and Logarithm PRO vs PDE Pro Database Engineer

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

Head to head
About

Power and Logarithm PRO

Explore exponential and logarithmic functions with step-by-step solutions and interactive graphing. Adjust parameters to visualize their impact on curves and understand inverse relationships. Supports decimals, fractions, and negative values, with a history of calculations.

Highlights
  • Step-by-step solutions
  • Interactive graphing
  • Parameter adjustment
  • Inverse function visualization
  • History of calculations
  • Decimal, fraction, and negative value support
Features
Read full description

Exponential function and logarithm are inverse to each other. This app shows how to create the inverses. It also provides a short curve analyse with significant properties and a graph. Everything is shown step by step. All calculation processes are easy to follow. It is also perfect to fiddle with the logarithmic and the exponential function by changing several parameters. Changing the parameters affect the result like shifting or stretching the graph. An infographic shows the effect of each parameter. 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 a logarithmic and an exponential function - all inputs have default values, but can be changed - results are calculated and shown in detail - 5 parameters to change the function - 1 parameter to calculate a certain value - infographic to show the effect of the parameters - 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

About

PDE Pro Database Engineer

Features
Read full description

PASS YOUR PROFESSIONAL CLOUD DATABASE ENGINEER EXAM 500+ practice questions 5-minute study sessions Track your progress Remove mastered questions Text-to-speech support Dark mode available WHY GET CERTIFIED? Certified Google Cloud database engineers earn up to $203K annually (Skillsoft 2024). Professional Cloud Database Engineer validates expertise in designing, managing, and troubleshooting scalable database solutions. WHAT YOU'LL MASTER: Database capacity planning and performance tuning High availability with multi-regional and zonal strategies Database connectivity with networking and encryption Managed vs unmanaged services comparison SQL and NoSQL requirements for structured and unstructured data IAM and access management for database security Monitoring with query optimization and resource contention Backup and recovery with RTO, RPO, and PITR Cost optimization and scaling strategies Database migration with zero-downtime and fallback plans Replication strategies and read replicas Generative AI and LLM database use cases STUDY ANYWHERE: Coffee breaks. Commutes. Lunch hours. Turn dead time into database engineering expertise. Download now. Pass your exam. Master Google Cloud databases.

Screenshots

Power and Logarithm PRO4 screens
PDE Pro Database Engineer3 screens

Verdict

The call

The clearest difference is price: PDE Pro Database Engineer at Free against Power and Logarithm PRO's $1.99. Power and Logarithm PRO's advantage is update cadence (monthly vs every 3 months). On ads, in-app purchases, device support and iOS requirement 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

PDE Pro Database Engineer is free to download; Power and Logarithm PRO costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Power and Logarithm PRO ships an update monthly, PDE Pro Database Engineer every 3 months. The most recent releases landed on October 2, 2026 and October 15, 2026 respectively.

Scorecard2 real differences · 8 level
Power and Logarithm PRO versus PDE Pro Database Engineer: the parameters behind the verdict, then further details
ParameterPower and Logarithm PROPDE Pro Database Engineer
Price$1.99Free — better
Rating5.0 (1 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings1 — better—
Update frequencyMonthly — betterEvery 3 months
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.015.0
Further details — not scored
Size183 MB30 MB
Age rating4+4+
DeveloperGlindemann, Sennoun, Langer GbRDavy Raitt

In-app purchases

None

Power and Logarithm PRO

No in-app purchases

None

PDE Pro Database Engineer

No in-app purchases

Questions

Is Power and Logarithm PRO free?
Power and Logarithm PRO costs $1.99, with no in-app purchases.
Is PDE Pro Database Engineer free?
PDE Pro Database Engineer is free to download, with no in-app purchases.
Do Power and Logarithm PRO or PDE Pro Database Engineer have ads?
Neither Power and Logarithm PRO nor PDE Pro Database Engineer shows ads.
Which is updated more often, Power and Logarithm PRO or PDE Pro Database Engineer?
Power and Logarithm PRO ships an update monthly, and PDE Pro Database Engineer every 3 months. Most recently, Power and Logarithm PRO was updated on October 2, 2026 and PDE Pro Database Engineer on October 15, 2026.

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