# Energy Viewer vs HNB Authenticator

The clearest difference is rating: HNB Authenticator at 5.0 against Energy Viewer's 2.0. Energy Viewer's advantage is ratings volume (4 vs 1) and iOS requirement (11.0 vs 14.0). On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

HNB Authenticator holds the better App Store score, 5.0 against 2.0. Both are backed by a comparable volume of ratings — 4 and 1 respectively.

Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on November 2, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | Energy Viewer | HNB Authenticator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.0 (4 ratings)](https://appshunter.io/ios/app/energy-viewer/id1436015214/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/hnb-authenticator/id6447000431/reviews)** |
| Number of ratings | **4** | 1 |
| Positive reviews | 40.3% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | Every 2 months |
| Monetization | Free | Free |
| Size | 45 MB | 24 MB |
| Requires iOS | **11.0** | 14.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Fimer Spa](https://appshunter.io/developer/1499080011) | [Hatton National Bank](https://appshunter.io/developer/880560643) |

## What reviewers say

### Energy Viewer

[App page](https://appshunter.io/ios/app/energy-viewer/id1436015214)

Monitor your solar power system's output and home's energy consumption remotely. Track energy flows, manage your e-Car charging, and receive in-app notifications for plant status and updates.

**Highlights:** Remote solar system monitoring, Home energy consumption tracking, E-Car charging management, In-app notifications, Firmware updates, PV plant performance monitoring

**Features:** macOS Compatibility

**In-app purchases:** none


### HNB Authenticator

[App page](https://appshunter.io/ios/app/hnb-authenticator/id6447000431)

This app provides a secure and straightforward method for authenticating sign-ins and transactions. It also allows for offline generation of One-Time Passwords (OTPs) via SMS for mobile data usage.

**Highlights:** Secure authentication, Transaction authentication, Offline OTP generation, SMS-based OTPs, Simple interface

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Energy Viewer free?

Energy Viewer is free to download, with no in-app purchases.

### Is HNB Authenticator free?

HNB Authenticator is free to download, with no in-app purchases.

### Which has better reviews, Energy Viewer or HNB Authenticator?

HNB Authenticator is rated higher. Energy Viewer averages 2.0 out of 5 from 4 ratings, while HNB Authenticator averages 5.0 from 1 ratings.

### Do Energy Viewer or HNB Authenticator have ads?

Neither Energy Viewer nor HNB Authenticator shows ads.

### Which is updated more often, Energy Viewer or HNB Authenticator?

Energy Viewer ships an update every 2 months, and HNB Authenticator every 2 months. Most recently, Energy Viewer was updated on November 2, 2026 and HNB Authenticator on November 3, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*