Comparison

Resistor calc vs Bluetooth Radar Pro

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

Head to head
About

Resistor calc

Features
Read full description

Resistor Calc is an essential tool for anyone working with electronic circuits and resistors. Designed to streamline complex calculations and provide invaluable insights, this powerful app for iOS devices is a must-have in your toolkit. At the heart of Resistor Calc lies a comprehensive suite of calculators tailored to the needs of electrical engineers, students, hobbyists, and professionals. The series/parallel calculator makes it a breeze to determine the equivalent resistance for even the most intricate circuit configurations, eliminating the need for tedious manual calculations prone to errors. The LED series resistor calculator is a game-changer for those working with LED lighting systems. Simply input the required parameters, and Resistor Calc will recommend the ideal resistor value to ensure proper current limiting and protect your LEDs from potential damage, ensuring optimal performance and longevity. For three-phase circuits, the app's star-delta and delta-star converters streamline the process of switching between different wiring configurations. Whether you need to convert from star to delta or vice versa, Resistor Calc has you covered, saving you valuable time and effort. But the true standout feature of Resistor Calc is its powerful resistor color code decoder. Never again will you need to decipher those tiny colored bands manually. Simply input the color codes, and the app will instantly reveal the resistor's value, tolerance, and other essential information, making component identification a breeze and saving you countless hours of frustration. With its sleek and intuitive interface, Resistor Calc is designed for seamless navigation and ease of use. Whether you're a student grappling with complex circuit problems or a seasoned professional tackling intricate projects, this app empowers you with accurate and reliable calculations at your fingertips. Download Resistor Calc today and experience the power of efficient circuit analysis and resistor management on your iOS device. Streamline your workflow, minimize errors, and unlock new levels of productivity in your electrical engineering endeavours.

About

Bluetooth Radar Pro

This app helps you locate Bluetooth Low Energy devices in real-time using a radar interface. It provides distance estimates, technical details, and allows you to set up alerts for your favorite devices. Advanced tools are available for deeper analysis.

Highlights
  • Live BLE scanning with radar
  • Distance estimation from RSSI
  • Eco and Precision power modes
  • Street Mode for walking
  • Favorites and alerts
  • Technical BLE details
  • Pro Tools for advanced analysis
Features
Read full description

Bluetooth Radar detects Bluetooth Low Energy devices around you in real-time. Visualizes signal strength (RSSI), estimates distances, and finds headsets, wearables, beacons, and other BLE peripherals with a clear radar and sortable list. MAIN FUNCTIONS • Live BLE scanning with radar blips and device list • Distance estimated by RSSI and TX power • Eco and Precision modes for battery and detail balance • Street mode to search while walking (signal + heading) • Favorites and alerts when a device returns to range • Technical detail, Manufacturer Data and beacons • Pro Tools: Signal Monitor, GATT Explorer and Data Decoder • CSV export and built-in help • Available in Spanish, English, French, Italian, German and Portuguese WHO IT'S FOR Ideal if you're looking to locate a nearby device, analyze BLE ads, explore GATT services, or keep an eye on favorites with notifications. FREE AND PREMIUM VERSION The app is free to use with daily quotas. Premium unlocks Tools Pro, unlimited Street Mode and Accuracy (after trial), tracking/detailing/GATT/exports/favorites with no daily limit. AUTO-RENEWING SUBSCRIPTIONS • Premium Monthly — 1 month, auto-renew • Premium Yearly — 1 year, auto-renewal • Lifetime Access — one-time purchase (not auto-renewable) Payment will be charged to your Apple account at confirmation of purchase. Subscription automatically renews unless you turn off auto-renew at least 24-hours before the end of the current period. You can manage and cancel in your App Store account settings. Any unused portion of a free trial period (if applicable) is forfeited when you purchase a subscription. LEGAL LINKS (required) Privacy Policy: https://www.ble-radar.com/privacidad.html Terms of Use (EULA): https://www.ble-radar.com/terminos.html Apple Standard Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Support: info@ble-radar.com

Screenshots

Resistor calc4 screens
Bluetooth Radar Pro4 screens

Verdict

The call

The clearest difference is price: Bluetooth Radar Pro at Free against Resistor calc's $1.99. Resistor calc's advantage is in-app purchases (none vs 3) and device support (3 vs 1). On update cadence and ads 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

Bluetooth Radar Pro is free to download; Resistor calc costs $1.99 up front. Bluetooth Radar Pro sells 3 in-app purchases, starting at $1.99 per month. Resistor calc asks for nothing beyond the download.

UpkeepUpdate frequency

Resistor calc ships an update every 2 months, Bluetooth Radar Pro every 6 weeks. The most recent releases landed on October 25, 2026 and October 24, 2026 respectively.

Scorecard4 real differences · 5 level
Resistor calc versus Bluetooth Radar Pro: the parameters behind the verdict, then further details
ParameterResistor calcBluetooth Radar Pro
Price$1.99Free — better
Rating—3.7 (3 ratings) — better
Number of ratings—3 — better
Update frequencyEvery 2 monthsEvery 6 weeks — better
AdsNoNo
In-app purchasesNo — betterYes
Monetization—Freemium
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS13.0 — better18.4
Further details — not scored
Size17 MB6 MB
Age rating4+4+
DeveloperAnas AbubakarJose Antonio Salinas Garcia

In-app purchases

None

Resistor calc

No in-app purchases

3 purchases

Bluetooth Radar Pro

Subscriptions2
  • Premium Mensual3 Days trial$1.991 Month
  • Premium Anual3 Days trial$8.991 Year
One-time1
  • Acceso Vitalicio$17.99

Questions

Is Resistor calc free?
Resistor calc costs $1.99, with no in-app purchases.
Is Bluetooth Radar Pro free?
Bluetooth Radar Pro is free to download, with in-app purchases available.
Do Resistor calc or Bluetooth Radar Pro have ads?
Neither Resistor calc nor Bluetooth Radar Pro shows ads.
Which is updated more often, Resistor calc or Bluetooth Radar Pro?
Resistor calc ships an update every 2 months, and Bluetooth Radar Pro every 6 weeks. Most recently, Resistor calc was updated on October 25, 2026 and Bluetooth Radar Pro on October 24, 2026.

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