Comparison

Quectel BPM vs Resistor calc

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

Head to head
About

Quectel BPM

Features
Read full description

一款移动审批业务系统软件。随时随地移动访问和操作——阅读通知、安排任务、审批流程、查看业务数据,即时通讯等。

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.

Screenshots

Quectel BPM4 screens
Resistor calc4 screens

Verdict

The call

The clearest difference is price: Quectel BPM at Free against Resistor calc's $1.99. Quectel BPM also leads on update cadence (every 3 weeks vs every 2 months) and iOS requirement (11.0 vs 13.0). On 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

CostPrice · In-app purchases · Ads · Monetization

Quectel BPM is free to download; Resistor calc costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Quectel BPM ships an update every 3 weeks, Resistor calc every 2 months. The most recent releases landed on September 29, 2026 and October 2, 2026 respectively.

Scorecard3 real differences · 3 level
Quectel BPM versus Resistor calc: the parameters behind the verdict, then further details
ParameterQuectel BPMResistor calc
PriceFree — better$1.99
Update frequencyEvery 3 weeks — betterEvery 2 months
AdsNoNo
In-app purchasesNoNo
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS11.0 — better13.0
Further details — not scored
Size25 MB17 MB
Age rating4+4+
Developer上海移远通信技术股份有限公司Anas Abubakar

In-app purchases

None

Quectel BPM

No in-app purchases

None

Resistor calc

No in-app purchases

Questions

Is Quectel BPM free?
Quectel BPM is free to download, with no in-app purchases.
Is Resistor calc free?
Resistor calc costs $1.99, with no in-app purchases.
Do Quectel BPM or Resistor calc have ads?
Neither Quectel BPM nor Resistor calc shows ads.
Which is updated more often, Quectel BPM or Resistor calc?
Quectel BPM ships an update every 3 weeks, and Resistor calc every 2 months. Most recently, Quectel BPM was updated on September 29, 2026 and Resistor calc on October 2, 2026.

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