Logarithm Calculator SDG vs DataCentral
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Logarithm Calculator SDG
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.
- Calculate logarithms
- Supports base e
- Supports base 2
- Supports base 10
- Custom base support
- Easy to use interface
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Logarithm Calculator helps you to calculate logarithm of a number with a different base e, 2, 10 or any other base in an easy way.
DataCentral
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.
- Real-time sensor readings
- Customizable push notifications
- Uptime and power status monitoring
- Historical data and trend analysis
- Modern interface for quick glances
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DataCentral is the app for watching the US AI data center race — from Stargate-scale campuses and xAI's Colossus to the grid strain the buildout is creating. We don't pretend other companies' sites are live. Follow the buildout (free) - Buildout Pulse — sourced stories of announcements, milestones, and grid news, each with a source and an as-of date. - The Race — leaderboards ranking builders, states, and campuses by announced gigawatts. First open sets an overnight baseline rather than inventing climbers. Share a leaderboard card in a tap. - Grid — a three-state teaser ranked by the registry model, labeled "not live EIA," with MW announced and AI announced. Pro unlocks live EIA ranking. - Catalog — nationwide facilities with announced MW. Online and Building are registry status, not live health. - Your State — pick a state for its EIA residential electricity rate (labelled with the month published) shown beside announced facility MW and public proceedings. The app does not attribute rate changes to data centers. - Home Screen widgets — tracked announced capacity and the latest headline, updated in the background from a local snapshot. - One custom site to track your own facility manually. DataCentral Pro - Live facility telemetry — connect your own sites via HTTPS you supply and stream live power, utilization, and status on a real poll cadence. - Live EIA ranking — full state grid ranking from EIA-930, not the free registry teaser. - Assistant — ask about your watches, Race ranks, Grid, and Time to Power. Answers are grounded in data already in the app. - Unlimited custom data centers, with status/grid alerts and a "My Site" widget. - Energy cost modeling with customizable $/kWh. - Predictive insights and infrastructure alerts. - Annual plan includes a 7-day free trial. Honest data labeling - Cover copy states we don't pretend other companies' sites are live. - Pulse cards carry a source and an as-of date (for example "Updated Aug 27, 2026"). - Race ranks announced GW. Overnight Moves starts as a baseline on first open. - Free Grid is the registry model, labeled not live EIA. Rows read MW announced / AI announced. - Catalog MW is Announced. Online / Building are registry status, not live health. - Connected sites you instrument are badged LIVE with a last-updated timestamp. - Live telemetry requires a metrics endpoint you control (or a gateway you deploy). Who it's for - Investors and analysts tracking the US AI infrastructure buildout. - Enthusiasts following Stargate, Colossus, and the gigawatt race. - Infrastructure engineers and operators monitoring their own facilities. Subscription required for live connections, live EIA ranking, Assistant, and other Pro features. The Race, Pulse, registry Grid teaser, nationwide catalog, and manual custom sites remain available without a subscription.
Screenshots
Verdict
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.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
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.
| Parameter | Logarithm Calculator SDG | DataCentral |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (2 ratings) | 5.0 (2 ratings) |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| Number of ratings | 2 | 2 |
| Update frequency | Every 12 months | Every 3 days — better |
| Ads | Yes | No — better |
| In-app purchases | No — better | Yes |
| Monetization | Ad-supported — better | Freemium |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 11.0 — better | 17.6 |
| Further details — not scored | ||
| Size | 12 MB | 34 MB |
| Age rating | 4+ | 4+ |
| Developer | SDG CODE DOO NIS | Stephen Moore |
Customer experience
Logarithm Calculator SDG
DataCentral
In-app purchases
Logarithm Calculator SDG
No in-app purchases
DataCentral
- DataCentral Pro Monthly$9.991 Month
- DataCentral Pro Annual$89.991 Year
Questions
Is Logarithm Calculator SDG free?
Is DataCentral free?
Which has better reviews, Logarithm Calculator SDG or DataCentral?
Do Logarithm Calculator SDG or DataCentral have ads?
Which is updated more often, Logarithm Calculator SDG or DataCentral?
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