Whisper vs HartBR Devices
Price, ratings, monetisation and update history for both apps, side by side ā with what reviewers say about each.
Whisper
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Want to send some secrets to somebody? Whisper can help you! By encrypting with a specific key, Whisper can turn any text into Emojis. You can then send these Emojis any way you want. Without the corresponding key, your secrets can never be compromised. Whisper supports to create two kinds of keys: Random Secure Key and Passphrase Derived Key. Both kinds of keys can be shared with QR code. Whisper uses a hybrid 256-bit encryption algorithm, which is theoretically difficult to break. To learn more, just try it now!
HartBR Devices
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HartBR Devices is the official HartBR app for monitoring and configuring smart reclosers via Bluetooth Low Energy (BLE). With HartBR Devices you manage, in real time, devices from the RKT, FLC and 3F models directly from your smartphone or tablet ā no cables or additional equipment needed. **Key features:** ⢠Fast and secure Bluetooth Low Energy (BLE) connection to Hart reclosers ⢠Real-time readings of electrical measurements, device states and events ⢠Configuration of operational parameters, operation modes and protection settings ⢠Access level control (read, write and admin) with token-based authentication ⢠IoT connectivity support via LoRa and LTE ⢠Compatible with RKT, FLC and 3F models ⢠Intuitive interface **Who is this app for?** HartBR Devices is designed for electrical industry professionals ā engineers, field technicians and operators ā working with HartBR equipment for power distribution. **Requirements:** ⢠Device with Bluetooth 4.0 or higher ⢠iOS 14 or higher
Screenshots
Verdict
The clearest difference is update cadence: Whisper at every 4 days against HartBR Devices's every 3 weeks. HartBR Devices's advantage is device support (3 vs 1) and iOS requirement (13.0 vs 17.0). On price, ads and in-app purchases there is nothing between them.
Scored on Price Ā· Rating Ā· Positive reviews Ā· Number of ratings Ā· Update frequency Ā· Ads Ā· In-app purchases Ā· Monetization Ā· Best chart rank Ā· Devices Ā· Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Whisper ships an update every 4 days, HartBR Devices every 3 weeks. Both last shipped on October 2, 2026.
| Parameter | Whisper | HartBR Devices |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 4 days ā better | Every 3 weeks |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone | iPhone, iPad, iPod ā better |
| Requires iOS | 17.0 | 13.0 ā better |
| Further details ā not scored | ||
| Size | 2 MB | 64 MB |
| Age rating | 4+ | 17+ |
| Developer | ę±ę é | Ricardo Moura |
In-app purchases
Whisper
No in-app purchases
HartBR Devices
No in-app purchases









