eFace Auth vs HydroCalc Basic
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
eFace Auth
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The eFace Auth application is developed according to the most actual services and technologies which could guarantee secure and accurate identity authentication. Nowadays for many services is essential to prove that the users are the same as who they say they are. For stronger identity authentication the eFace Auth app has to be used along with a valid Passport issued by a state which is part of the European Union. There are 2 main phases of the process of identity authentication: 1. Taking photos of the Passport with the smartphone’s camera as well as a machine-reading process where the information from the digital part of the Passport has being read via the NFC tool of the smartphone. 2. Taking “selfies” (photos of yourselves) and recording movements of your face. The taken photos are compared with the photo which is on the Passport and the recording of the movements is automatically analysed in terms of confirming that the user in front of the camera is a real person. In case of discrepancy the process of authentication will be stopped and the user will not be able to authenticate themselves. The eFace Auth app is highly effective due to the process of matching the person’s data from the Passport and the facial recognition which has been done. The performed liveness checks verify that the taken selfie totally matches the face from the recorded video and the photo from the Passport. Having those security “layers”, eFace Auth is the perfect service which can be used for remote identity authentication.
HydroCalc Basic
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Pipe Headloss Calculator provides engineers, designers, and students with powerful tools for pipeline hydraulic analysis — without the hassle of complex manual computations. Whether you’re sizing new pipelines or analyzing existing systems, the app delivers rapid, accurate results. Key Features Automatic Unit Conversion – Seamlessly switch between US Customary and SI units for length, flow, and diameter. Pipeline-Specific Inputs – Enter pipeline length, flow rate, internal diameter, and pipe material. Powerful Inverse Calculator – Set a target head loss and calculate the required diameter, flow, or length. Instantly view flow velocity, friction head loss, fitting losses, and full system curve data. With a clean interface and fast performance, this app is designed to save time and improve accuracy in hydraulic calculations — from the classroom to the field.
Screenshots
Verdict
The clearest difference is in-app purchases: eFace Auth at none against HydroCalc Basic's 1. eFace Auth also leads on iOS requirement (13.0 vs 15.1). On price, ads 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. HydroCalc Basic sells 1 one-off in-app purchase. eFace Auth asks for nothing beyond the download.
| Parameter | eFace Auth | HydroCalc Basic |
|---|---|---|
| Price | Free | Free |
| Update frequency | — | Every 11 days |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 13.0 — better | 15.1 |
| Further details — not scored | ||
| Size | 28 MB | 35 MB |
| Age rating | 4+ | 4+ |
| Developer | SkimProt Ltd. | Transparent Blue Water LLC |
In-app purchases
eFace Auth
No in-app purchases
HydroCalc Basic
- Premium - Flow Units & Ad-Free$1.99
Questions
Is eFace Auth free?
Is HydroCalc Basic free?
Do eFace Auth or HydroCalc Basic have ads?
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