FOTJ vs Rissa Citizen Science
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
FOTJ
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Parameterizing field experiences to allow data-driven inputs to group belonging, participation, and teamwork.
Rissa Citizen Science
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Rissa Citizen Science is a mobile platform designed to support citizen scientists and researchers in collecting valuable field data across multiple research initiatives. Join us in this growing platform for citizen science and help bridge the gap between scientific research and community participation! For more information, please visit: www.rissa-cs.org
Screenshots
Verdict
The clearest difference is update cadence: FOTJ at every 4 days against Rissa Citizen Science's every 4 months. Rissa Citizen Science's advantage is iOS requirement (13.0 vs 17.4). 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.
FOTJ ships an update every 4 days, Rissa Citizen Science every 4 months. The most recent releases landed on September 28, 2026 and September 9, 2026 respectively.
| Parameter | FOTJ | Rissa Citizen Science |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 4 days — better | Every 4 months |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad, Apple Watch — better | iPhone, iPod |
| Requires iOS | 17.4 | 13.0 — better |
| Further details — not scored | ||
| Size | 2 MB | 57 MB |
| Age rating | 4+ | 4+ |
| Developer | Rodney Dyer | Rissa Citizen Science |
In-app purchases
FOTJ
No in-app purchases
Rissa Citizen Science
No in-app purchases
