Pollution Guardian vs XR4
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
XR4
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Controlla i tuoi impianti, ovunque tu sia. Verifica lo stato dei tuoi dispositivi XR4, e gestisci direttamente i tuoi impianti, tramite il portale XR4 Mobile, con un semplice click. Ricevi notifiche push quando un dispositivo va online o offline, oppure quanto si verifica un'anomalia su un impianto.
Screenshots
Verdict
The clearest difference is device support: Pollution Guardian at 2 against XR4's —. On price, in-app purchases 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
| Parameter | Pollution Guardian | XR4 |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 5 months | — |
| Ads | No | — |
| In-app purchases | No | No |
| Devices | iPhone, iPad — better | — |
| Requires iOS | 16.2 | 16.2 |
| Further details — not scored | ||
| Size | 51 MB | 41 MB |
| Age rating | 4+ | 4+ |
| Developer | Pollution srl | Xeo4 S.r.l. |
In-app purchases
Pollution Guardian
No in-app purchases
XR4
No in-app purchases
