USACE Savannah vs ESA DMPL Authenticator
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
USACE Savannah
Access official water management data for the U.S. Army Corps of Engineers, Savannah District. View rainfall and reservoir information, including discharge, levels, and projections for dams on the Savannah River.
- Provisional rainfall data
- Reservoir level data
- Discharge information
- Reservoir projections
- Corps-managed dam data
- Savannah River dams
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Official water management app for the U.S. Army Corps of Engineers, Savannah District. This app provides provisional rainfall and reservoir data, such as discharge, reservoir levels and projections, on the Corps-managed dams on the Savannah River: Hartwell, Richard B. Russell and J. Strom Thurmond.
ESA DMPL Authenticator
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Two-step authentication helps to protect you by making it more difficult for someone else to sign in to the ESA DMPL Tool (web version) with your DMPL Tool account. - Use the built-in QR code scanner to link the ESA DMPL Tool Authenticator app to your DMPL Tool account - After entering your password to login to the DMPL Tool (web version) you’ll be asked to enter the Time-based One-Time Password (OTP) generated by the app to verify your identity - Each OTP code is randomly generated. The countdown timer shows you how long the code is valid. - The app doesn’t require you to be connected to a network and won’t drain your battery. Note: you must have a ESA DMPL Tool account to use this app and have OTP Authentication enabled. Please contact the DMPL Tool Administrator should you require further instructions.
Screenshots
Verdict
The clearest difference is update cadence: ESA DMPL Authenticator at every 9 months against USACE Savannah's every 40 months. USACE Savannah's advantage is iOS requirement (7.0 vs 15). 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.
USACE Savannah ships an update every 40 months, ESA DMPL Authenticator every 9 months. The most recent releases landed on October 24, 2026 and October 27, 2026 respectively.
| Parameter | USACE Savannah | ESA DMPL Authenticator |
|---|---|---|
| Price | Free | Free |
| Rating | 1.2 (26 ratings) — better | — |
| Positive reviews | 0.0% of reviews | — |
| Number of ratings | 26 — better | — |
| Update frequency | Every 40 months | Every 9 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 7.0 — better | 15 |
| Further details — not scored | ||
| Size | 73 MB | 1 MB |
| Age rating | 4+ | 4+ |
| Developer | U.S. Army Corps of Engineers | TSA Group Delft bv |
In-app purchases
USACE Savannah
No in-app purchases
ESA DMPL Authenticator
No in-app purchases
Questions
Is USACE Savannah free?
Is ESA DMPL Authenticator free?
Do USACE Savannah or ESA DMPL Authenticator have ads?
Which is updated more often, USACE Savannah or ESA DMPL Authenticator?
Other comparisons
