St John's vs Sargassum
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
St John's
This app connects families with their school, providing access to the latest news, communication logs, and academic reports. Parents can easily view newsletters and other important school documents.
- School news updates
- Communication log
- Academic reports access
- Newsletter viewing
- General document access
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Esta es la aplicación para padres del St John's. Conecta a las familias con el Colegio y brinda varias herramientas: - Acceso a las últimas novedades del Colegio - Cuaderno de comunicaciones - Acceso a boletines y otros informes académicos - Acceso a documentos de interés general
Sargassum
This app allows users to report the coverage and thickness of seaweed on beaches, optionally including photos. The collected data, along with user coordinates, helps scientists document environmental changes over time. Recent reports are visualized on a map.
- Report seaweed coverage
- Measure seaweed thickness
- Add photos to reports
- View recent reports on a map
- Contribute to scientific data
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The Sargassum APP lets you record the amount of seaweed which washes up on beaches. You report on the seaweed mat's coverage on the beach as well as its thickness. You can also take a photo if you wish. When you upload the information your coordinates are provided and scientists can use the information to document changes over time. Recent reports are shown on a map. You can use this information to help plan your beach day but remember, many communities clear their beaches daily.
Screenshots
Verdict
The clearest difference is update cadence: St John's at fortnightly against Sargassum's every 5 weeks. St John's also leads on iOS requirement (14.2 vs 16.4). On price, ads, in-app purchases and monetization model 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.
St John's ships an update fortnightly, Sargassum every 5 weeks. The most recent releases landed on November 3, 2026 and November 4, 2026 respectively.
| Parameter | St John's | Sargassum |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (1 ratings) — better |
| Positive reviews | 50.0% of reviews | — |
| Number of ratings | — | 1 — better |
| Update frequency | Fortnightly — better | Every 5 weeks |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 14.2 — better | 16.4 |
| Further details — not scored | ||
| Size | 163 MB | 90 MB |
| Age rating | 4+ | 4+ |
| Developer | Fundacion Escuelas San Juan | Donald Schlack |
In-app purchases
St John's
No in-app purchases
Sargassum
No in-app purchases
