World Sky Clock vs Pollution Guardian
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
World Sky Clock
Displays the current time and sky color for cities worldwide. Track sunrise, sunset, and twilight times, along with sun position and city coordinates. Offers detailed sky color changes over time.
- World city time display
- Current sky color
- Sunrise and sunset times
- Sun position and orbit
- City coordinates and altitude
- Twilight times
- Sky color change tracking
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This application shows the current time and the color of the sky in each world city. You can put the time of five cities at the maximum, and see the following information about each city. - The color of the sky. - Current time , Time of Sunrise , Time of Sunset , Color of the sky , Orbit of the sun , Sun position - Coordinate and altitude of the city , Sun direction , Sun position , Time of civil twilight , Time of Nautical twilight , Time of Astronomical twilight - Changes in today’s sky color. (Unit 15 minutes) - Changes in year sky color. (Unit 1 months) It corresponds to about 23,000 cities around the world and the place where you are now. (Only Full Version)
Pollution Guardian
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It works with Pollution Analytical Equipment instruments and other devices. You can store up and archive analysis data automatically; the app allows the real time data and the historical data viewing (with creation of charts, tables, graphs and other statistical analyses). Thanks to the Pollution Guardian APP you can set user-defined alarms on the data collected and receive push notifications on your smartphone.
Screenshots
Verdict
The clearest difference is in-app purchases: Pollution Guardian at none against World Sky Clock's 1. World Sky Clock's advantage is iOS requirement (7.1 vs 16.2). On price, ads 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
Both are free to download. World Sky Clock sells 1 one-off in-app purchase. Pollution Guardian asks for nothing beyond the download.
| Parameter | World Sky Clock | Pollution Guardian |
|---|---|---|
| Price | Free | Free |
| Rating | 2.0 (1 ratings) — better | — |
| Positive reviews | 0.0% of reviews | — |
| Number of ratings | 1 — better | — |
| Update frequency | — | Every 5 months |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPod | iPhone, iPad |
| Requires iOS | 7.1 — better | 16.2 |
| Further details — not scored | ||
| Size | 9 MB | 51 MB |
| Age rating | 4+ | 4+ |
| Developer | mash studio | Pollution srl |
In-app purchases
World Sky Clock
- Full version$1.99
Pollution Guardian
No in-app purchases
Questions
Is World Sky Clock free?
Is Pollution Guardian free?
Do World Sky Clock or Pollution Guardian have ads?
Other comparisons
