Comparison

nRF Toolbox vs BLE Relay Bluetooth

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

nRF Toolbox

This utility app connects to various Bluetooth Low Energy accessories. It demonstrates multiple BLE profiles, including health and fitness sensors, allowing users to monitor data from devices like heart rate monitors and glucose monitors.

Highlights
  • Bluetooth Low Energy connectivity
  • Demonstrates BLE profiles
  • Heart Rate Monitor support
  • Glucose Monitor support
  • Cycling Speed and Cadence
  • Running Speed and Cadence
Read full description

nRF Toolbox works with a wide range of Bluetooth Low Energy accessories. It contains applications demonstrating BLE profiles: Cycling Speed and Cadence, Running Speed and Cadence, Heart Rate Monitor, Blood Pressure Monitor, Health Thermometer, Glucose Monitor, Continuous Glucose Monitor, Monitoring & Diagnostic and more. The source code of this application is available on GitHub: https://github.com/nordicsemi/iOS-nRF-Toolbox

About

BLE Relay Bluetooth

Read full description

Ble Relay Bluetooth — control BLE relays and selected smart locks from your iPhone, anywhere in the world. Built for riders and makers who need a fast, reliable way to arm a motorcycle contact, switch channels, or open a lock—without digging through complicated tools. Relays that just work Connect popular BLE modules including A72Z / XY-MBO21F (NBH), LC Tech (A0), DSD TECH, JDY / HM-10 UART, ZL / TwoSwitch, plus prepared profiles for Tuya, Shelly, Sonoff, ESP DIY and generic GATT. Auto-detect or pick the brand manually. Set proximity from 1–10 m, calibrate on site, adjust RSSI thresholds, TX power, PIN, name, bonding and more. Motorcycle contact, done right Turn the contact ON or OFF from the app, the widget, or Siri—while keeping the app in the background. Auto-connect when you get within ~10 m of your saved module. One-tap control on iPhone Duo’s cover display. Smart locks ready Browse 10 major lock brands. Nuki users can unlock, lock and unlatch over the local Bridge HTTP API (LAN). Other brands are prepared for upcoming full support. Built for real use 41 languages Device info panel (firmware, UUID, RSSI, settings) Auto-connect toggle & forget module AT / HEX console for power users Secure PIN storage for reconnect / Siri / widget Requirements iOS 17+, Bluetooth LE module or Nuki Bridge on your network. Not for audio devices or classic Bluetooth. Download once. Pair once. Control your relay—or your lock—every day. Support: contact the developer via the App Store page.

Screenshots

nRF Toolbox4 screens
BLE Relay Bluetooth4 screens

Verdict

The call

The clearest difference is price: nRF Toolbox at Free against BLE Relay Bluetooth's $2.99. BLE Relay Bluetooth's advantage is update cadence (every 4 days vs every 5 weeks). On ads, in-app purchases, device support and iOS requirement 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

CostPrice · In-app purchases · Ads · Monetization

nRF Toolbox is free to download; BLE Relay Bluetooth costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

nRF Toolbox ships an update every 5 weeks, BLE Relay Bluetooth every 4 days. The most recent releases landed on November 3, 2026 and November 6, 2026 respectively.

Scorecard2 real differences · 8 level
nRF Toolbox versus BLE Relay Bluetooth: the parameters behind the verdict, then further details
ParameternRF ToolboxBLE Relay Bluetooth
PriceFree — better$2.99
Rating2.6 (8 ratings) — better—
Positive reviews22.2% of reviews—
Number of ratings8 — better—
Update frequencyEvery 5 weeksEvery 4 days — better
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPadiPhone, iPad
Requires iOS18.017.0 — better
Further details — not scored
Size17 MB4 MB
Age rating4+4+
DeveloperNordic Semiconductor ASAanthony Plaisir

In-app purchases

None

nRF Toolbox

No in-app purchases

None

BLE Relay Bluetooth

No in-app purchases

Questions

Is nRF Toolbox free?
nRF Toolbox is free to download, with no in-app purchases.
Is BLE Relay Bluetooth free?
BLE Relay Bluetooth costs $2.99, with no in-app purchases.
Do nRF Toolbox or BLE Relay Bluetooth have ads?
Neither nRF Toolbox nor BLE Relay Bluetooth shows ads.
Which is updated more often, nRF Toolbox or BLE Relay Bluetooth?
nRF Toolbox ships an update every 5 weeks, and BLE Relay Bluetooth every 4 days. Most recently, nRF Toolbox was updated on November 3, 2026 and BLE Relay Bluetooth on November 6, 2026.

Other comparisons