EyeOnWater vs myHSRT
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
EyeOnWater
Contribute to scientific research by measuring and reporting the color of nearby bodies of water. Your data helps scientists track water quality and life within it over time, building on a long-standing scientific observation method.
- Measure water color
- Contribute to scientific research
- Track water quality
- Observe algae presence
- Utilize Forel-Ule scale
- View data on website
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The EyeOnWater concept consists of an App and a website. The app allows you as user to make a contribution to science and supply information about the water colour of fresh- as well as saline waters (lakes, rivers, coastal waters, seas and oceans) near your location or elsewhere. The measurement is sent to the central server, validated and stored, after which it is visible via the EyeOnWater website: www.eyeonwater.org What is it you measure? Water colour is an indication for life (e.g. algae) in the water. Scientists have been measuring this in marine waters via the Forel-Ule scale for more than 200 years. Your measurements will contribute to this long term observation and continue the timeseries. The EyeOnWater concept has been developed by NIOZ (scientific background), Veerder (Design), and MARIS (Technical development), with assistance from other partners in the EU funded project Citclops: www.citclops.eu Join us!
myHSRT
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myHSRT accompanies you through your studies and on campus. Together you are the perfect team. Everyday university life is stressful enough - myHSRT offers you everything you need to start your studies well prepared every day, regardless of whether you have just started your studies or are already on your Master's programme. myHSRT is your team partner on campus, which is impressive and integrates perfectly into your daily study routine. In no time at all, you'll have all the important information about your studies with you wherever you are. You'll be surprised how easy it is. Calendar: It's best to start by managing your timetable with the myHSRT calendar. This will give you an overview of all your appointments so you never miss a lecture or other important event again. Grades: Calculate your grade point average and be the first to find out your new grades via push notification! Library: Never pay late fees again! With myHSRT you always have an overview of the loan period of your books and can easily renew your books with just a few clicks. Mail: Read and answer your university mails. No complicated set-up necessary! Of course you also have access to PENDLA, the campus navigation, the canteen menu and other important university information. myHSRT - an app from UniNow
Screenshots
Verdict
The clearest difference is update cadence: myHSRT at every 10 days against EyeOnWater's every 2 months. On price, ads, in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.
EyeOnWater ships an update every 2 months, myHSRT every 10 days. The most recent releases landed on November 1, 2026 and October 30, 2026 respectively.
| Parameter | EyeOnWater | myHSRT |
|---|---|---|
| Price | Free | Free |
| Rating | 2.5 (2 ratings) — better | — |
| Number of ratings | 2 — better | — |
| Update frequency | Every 2 months | Every 10 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod, Apple Watch — better |
| Requires iOS | 15.0 — better | 15.1 |
| Further details — not scored | ||
| Size | 31 MB | 104 MB |
| Age rating | 4+ | 4+ |
| Developer | MARIS B.V. | UniNow GmbH |
In-app purchases
EyeOnWater
No in-app purchases
myHSRT
No in-app purchases
