Mini Secchi vs Sensology app
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Mini Secchi
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The Secchi disk is a white disk that is lowered into the water and the depth at which it disappears and reappears from sight is logged. This depth is proportional to the clarity or transparency of the water. The Forel Ule colour scale is used to classify the colour of natural waters.It consists of 21 colours ranging from blue to green to yellow to brown, and is used alongside the Secchi disk with the observer typically recording the colour of a submerged Secchi disk with this app. The app will guide you through each measurement, store location data, photos and additional observations.
Sensology app
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Inside the Sensology app, you can: Access all of your videos in one easy to use app Receive push notifications with the latest news and updates Access to all of your videos without having to remember your password Save your favorite posts so you can quickly find them later END USER LICENSE AGREEMENT https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
Mini Secchi and Sensology app are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.
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.
Mini Secchi ships an update every 5 weeks, Sensology app every 3 weeks. The most recent releases landed on November 3, 2026 and November 8, 2026 respectively.
| Parameter | Mini Secchi | Sensology app |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 5 weeks | Every 3 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 15.0 — better | 16.6 |
| Further details — not scored | ||
| Size | 22 MB | 50 MB |
| Age rating | 4+ | 4+ |
| Developer | DDQ | Sensology |
In-app purchases
Mini Secchi
No in-app purchases
Sensology app
No in-app purchases
Questions
Is Mini Secchi free?
Is Sensology app free?
Do Mini Secchi or Sensology app have ads?
Which is updated more often, Mini Secchi or Sensology app?
Other comparisons
