nRF Blinky vs Echo54
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
nRF Blinky
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nRF Blinky is an application targeted towards developers who are new to Bluetooth Low Energy. nRF Blinky has the following features: - Scan and connect to any nRF5 DK containing the Nordic Semiconductor’s proprietary LED/Button Service. - Toggle the LED on the development kit On and Off from within the application. - Receive Button press and release events from the development kit and display it within the application. This application is open sourced and the is written in Swift 5 and available on GitHub: https://github.com/NordicSemiconductor/IOS-CoreBluetooth-Mock
Echo54
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Echo54 specializes in plug-and-play ground vibration and lidar sensors for any physical security environment, focusing on resiliency, privacy, and mobility. Get integrated, accurate, persistent perimeter awareness for any physical security environment, platform, or operating system, to protect personnel and infrastructure from a rapidly evolving set of threats.
Screenshots
Verdict
The clearest difference is update cadence: Echo54 at every 3 weeks against nRF Blinky's every 9 months. 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.
nRF Blinky ships an update every 9 months, Echo54 every 3 weeks. The most recent releases landed on October 6, 2026 and September 27, 2026 respectively.
| Parameter | nRF Blinky | Echo54 |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 9 months | Every 3 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod, Mac — better | iPhone, iPad, iPod |
| Requires iOS | 12.0 — better | 13.0 |
| Further details — not scored | ||
| Size | 10 MB | 35 MB |
| Age rating | 4+ | 4+ |
| Developer | Nordic Semiconductor ASA | PERIMETER AI INC. |
In-app purchases
nRF Blinky
No in-app purchases
Echo54
No in-app purchases
