# Power and Logarithm PRO vs PDE Pro Database Engineer

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.

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.

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.

## The numbers

| Metric | Power and Logarithm PRO | PDE Pro Database Engineer |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/power-and-logarithm-pro/id1662900283/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Monthly** | Every 3 months |
| Monetization | Free | — |
| Size | 183 MB | 30 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Glindemann, Sennoun, Langer GbR](https://appshunter.io/developer/1024972809) | [Davy Raitt](https://appshunter.io/developer/1795318281) |

## What reviewers say

### Power and Logarithm PRO

[App page](https://appshunter.io/ios/app/power-and-logarithm-pro/id1662900283)

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:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### PDE Pro Database Engineer

[App page](https://appshunter.io/ios/app/pde-pro-database-engineer/id6756967890)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked 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.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*