EPA NWCA vs VJHumidity
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
EPA NWCA
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National Wetland Condition Assessment field collection app.
VJHumidity
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Realtime Tracking The Humidity and Temperate
Screenshots
Verdict
The clearest difference is iOS requirement: VJHumidity at 12.4 against EPA NWCA's 15.0. On price, update cadence, ads and in-app purchases 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.
EPA NWCA ships an update fortnightly, VJHumidity every 8 days. The most recent releases landed on October 14, 2026 and October 5, 2026 respectively.
| Parameter | EPA NWCA | VJHumidity |
|---|---|---|
| Price | Free | Free |
| Update frequency | Fortnightly | Every 8 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 15.0 | 12.4 — better |
| Further details — not scored | ||
| Size | 55 MB | 13 MB |
| Age rating | 4+ | 4+ |
| Developer | United States Environmental Protection Agency (USEPA) | CHANG SHIN VIETNAM COMPANY LTD |
In-app purchases
EPA NWCA
No in-app purchases
VJHumidity
No in-app purchases
