Comparison

Pollution Guardian vs Deadlines reminder

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head

About

Pollution Guardian

Features

Read full description

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.

About

Deadlines reminder

Features

Read full description

Digital tool designed to help you remember important dates, appointments and deadlines easily. This app sends you notifications and alarms to make sure you don't forget anything important. Terms of use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Pollution Guardian4 screens

Deadlines reminder4 screens

Verdict

The call

The clearest difference is in-app purchases: Pollution Guardian at none against Deadlines reminder's 1. Pollution Guardian also leads on ads (none vs shown). Deadlines reminder's advantage is update cadence (every 2 months vs every 5 months). On price, device support 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Deadlines reminder sells 1 in-app purchase, starting at $2.99 per year. Pollution Guardian asks for nothing beyond the download.

UpkeepUpdate frequency

Pollution Guardian ships an update every 5 months, Deadlines reminder every 2 months. The most recent releases landed on October 25, 2026 and October 30, 2026 respectively.

Scorecard3 real differences · 3 level

Pollution Guardian versus Deadlines reminder: the parameters behind the verdict, then further details
Parameter	Pollution Guardian	Deadlines reminder
Price	Free	Free
Update frequency	Every 5 months	Every 2 months — better
Ads	No — better	Yes
In-app purchases	No — better	Yes
Devices	iPhone, iPad	iPhone, iPad, iPod — better
Requires iOS	16.2	15.6 — better
Further details — not scored
Size	51 MB	51 MB
Age rating	4+	4+
Developer	Pollution srl	Thomas Sambugaro

In-app purchases

None

Pollution Guardian

No in-app purchases

1 purchases

Deadlines reminder

Subscriptions1

Pro version$2.991 Year

Questions

Is Pollution Guardian free?

Pollution Guardian is free to download, with no in-app purchases.

Is Deadlines reminder free?

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

Do Pollution Guardian or Deadlines reminder have ads?

Deadlines reminder shows ads; Pollution Guardian does not.

Which is updated more often, Pollution Guardian or Deadlines reminder?

Pollution Guardian ships an update every 5 months, and Deadlines reminder every 2 months. Most recently, Pollution Guardian was updated on October 25, 2026 and Deadlines reminder on October 30, 2026.