Secchi vs FTF Congress
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Secchi
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Climate change is threatening the phytoplankton that underpins the marine food chain. We must understand why before it's too late. Secchi enables you to take part in the Secchi Disk citizen science study and help collect essential data on the phytoplankton.
FTF Congress
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The FT 2025 Congress in Stockholm is arranged by FTF - The Swedish Society of Aeronautics and Astronautics in cooperation with INNOVAIR - The Swedish Strategic Innovation Programme for Aeronautics.
Screenshots
Verdict
The clearest difference is iOS requirement: FTF Congress at 10.0 against Secchi's 15.6. 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.
| Parameter | Secchi | FTF Congress |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 7 months | — |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.6 | 10.0 — better |
| Further details — not scored | ||
| Size | 45 MB | 26 MB |
| Age rating | 4+ | 12+ |
| Developer | The Secchi Disk Foundation | FLYG - OCH RYMDTEKNISKA FOREN |
In-app purchases
Secchi
No in-app purchases
FTF Congress
No in-app purchases
Questions
Is Secchi free?
Is FTF Congress free?
Do Secchi or FTF Congress have ads?
Other comparisons
