# Logarithm Calculator SDG vs DataCentral

The clearest difference is in-app purchases: Logarithm Calculator SDG at none against DataCentral's 2. Logarithm Calculator SDG also leads on iOS requirement (11.0 vs 17.6). DataCentral's advantage is ads (none vs shown) and update cadence (every 3 days vs every 12 months). On price, rating, review sentiment and ratings volume there is nothing between them.

Both are free to download. DataCentral sells 2 in-app purchases, starting at $9.99 per month. Logarithm Calculator SDG asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 5.0 for Logarithm Calculator SDG against 5.0 for DataCentral. Both are backed by a comparable volume of ratings — 2 and 2 respectively. Written reviews split almost evenly too, at 100% and 100% positive.

Logarithm Calculator SDG ships an update every 12 months, DataCentral every 3 days. The most recent releases landed on October 10, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | Logarithm Calculator SDG | DataCentral |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (2 ratings)](https://appshunter.io/ios/app/logarithm-calculator-sdg/id6741317024/reviews) | [5.0 (2 ratings)](https://appshunter.io/ios/app/datacentral/id6762427769/reviews) |
| Number of ratings | 2 | 2 |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 12 months | **Every 3 days** |
| Monetization | **Ad-supported** | Freemium |
| Size | 12 MB | 34 MB |
| Requires iOS | **11.0** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [SDG CODE DOO NIS](https://appshunter.io/developer/1343251532) | [Stephen Moore](https://appshunter.io/developer/1894111091) |

## What reviewers say

### Logarithm Calculator SDG

[App page](https://appshunter.io/ios/app/logarithm-calculator-sdg/id6741317024)

Easily calculate logarithms for any number with various bases, including e, 2, and 10. This tool simplifies complex mathematical operations for quick and accurate results.

**Highlights:** Calculate logarithms, Supports base e, Supports base 2, Supports base 10, Custom base support, Easy to use interface

**Features:** macOS Compatibility

**In-app purchases:** none


### DataCentral

[App page](https://appshunter.io/ios/app/datacentral/id6762427769)

Monitor your servers, sensors, and infrastructure in real-time from your iPhone. Receive instant alerts for temperature, uptime, and power status changes. Ideal for home labs, small businesses, and colocation racks to prevent downtime.

**Highlights:** Real-time sensor readings, Customizable push notifications, Uptime and power status monitoring, Historical data and trend analysis, Modern interface for quick glances

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| DataCentral Pro Monthly | $9.99 | per month |
| DataCentral Pro Annual | $89.99 | per year |


## Frequently asked questions

### Is Logarithm Calculator SDG free?

Logarithm Calculator SDG is free to download, with no in-app purchases.

### Is DataCentral free?

DataCentral is free to download, with in-app purchases available.

### Which has better reviews, Logarithm Calculator SDG or DataCentral?

Logarithm Calculator SDG and DataCentral are both rated 5.0 out of 5 on the App Store, from 2 and 2 ratings respectively.

### Do Logarithm Calculator SDG or DataCentral have ads?

Logarithm Calculator SDG shows ads; DataCentral does not.

### Which is updated more often, Logarithm Calculator SDG or DataCentral?

Logarithm Calculator SDG ships an update every 12 months, and DataCentral every 3 days. Most recently, Logarithm Calculator SDG was updated on October 10, 2026 and DataCentral on October 7, 2026.

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