Comparison

Operational Amplifiers Guide vs Voltage Divider Calculator

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

Head to head
About

Operational Amplifiers Guide

Features
Read full description

Operational Amplifiers Guide is your essential tool for designing and analyzing circuits using op-amps and comparators. Whether you're a student, electronics enthusiast, or experienced engineer, this app helps you create, calculate, and understand a wide variety of op-amp–based circuits with ease. Use it as a practical reference when developing projects, building prototypes, or studying amplifier configurations. The app also includes technical data on popular operational amplifier and comparator series — making it a handy guide for both design and selection. Available in 14 Languages: • English, French, German, Indonesian, Italian, Japanese, Polish, Portuguese, Russian, Simplified Chinese, Spanish, Turkish, Ukrainian, and Vietnamese — study in your native language! Key Features: • Interactive calculators for common op-amp circuits • Step-by-step explanations and formulas • Reference info on op-amps and comparators • Ideal for learning, prototyping, or quick checks • Light and dark mode support The application contains the following guides and calculators: Amplifiers • Non-inverting operational amplifier • Inverting operational amplifier • Inverting amplifier with T-bridge in OS • Differential amplifier • Differential amplifier with T-bridge in OS • Voltage repeater • Inverting voltage repeater • AC voltage amplifier • High Input Impedance AC Voltage Amplifier • AC voltage repeater ActiveFilters • Non-inverting low-pass filter • Inverting low-pass filter • Non-inverting high-pass filter • Inverting high pass filter • Bandpass filter • Gyrator Integrators and differentiators • Voltage integrator • Sum integrator • Integrator with signal amplification • Difference integrator • Double integrator • Voltage differentiator • Sum Differentiator • Differentiator with T-bridge • Differentiator with T-bridge made of capacitors • Difference differentiator Comparators • Comparator • Limiter • Limiter with zener diode at the input • RS trigger Attenuators • Non-inverting attenuator • Inverting attenuator Converters • Voltage-to-current converter with non-inverting input • Voltage to current converter with inverting input • Voltage to current converter with differential input Adders and substactors • Inverting adder • Addition-subtraction circuit • Non-inverting adder Logarithmic and exponential amplifiers • Diode-based logarithmic amplifier • Transistor-based logarithmic amplifier • Diode exponential amplifier • Exponential transistor amplifier Sine Wave generators: • Op-Amp Oscillators • Oscillator with Diode in the Feedback Path • Twin-T Network Signal Generator Square-wave pulse generators • Op-Amp Square-Wave Generator • Adjustable Square-Wave Generator • Enhanced Square-Wave Generator • Duty-Cycle Adjustment Triangle-wave signal generators • Nonlinear Triangle-Wave Generator • Variable-Symmetry Sawtooth Generator • Linear Triangle-Wave Generator • Adjustable Linear Triangle-Wave Generator • Variable-Symmetry Ramp Generator Popular operational amplifiers: description and pinout Popular comparators: description and pinout Download now and power up your electronics work!

About

Voltage Divider Calculator

Calculate unknown values in voltage divider circuits with ease. Supports loaded dividers, power dissipation calculations, and finding standard resistor values. Ideal for students, hobbyists, and engineers.

Highlights
  • Calculate Vin, Vout, R1, R2
  • Support for loaded dividers (RL)
  • Power dissipation calculation (P(R1), P(R2))
  • Find nearest standard E24 resistor values
  • Supports Ohms and Kilo-Ohms
  • Instant results as you type
Features
Read full description

Voltage Divider Calculator Easily solve voltage divider circuits Enter any 3 known values — • Input Voltage (Vin) • Output Voltage (Vout) • Resistor 1 (R1) • Resistor 2 (R2) and the app instantly calculates the fourth. NEW in this version: • Loaded divider support — add an optional Load Resistance (RL) to see the real output voltage under load • Power dissipation — see P(R1) and P(R2) instantly, so you can pick the right resistor wattage • Standard values — get the nearest E24 resistor value for your calculated resistance • Completely ad-free — no banners, no pop-ups, no tracking Supports Ohms and Kilo-Ohms, with instant results as you type. Perfect for students, hobbyists, and engineers doing quick, accurate circuit analysis and design. Compatible with both iPhone and iPad.

Screenshots

Operational Amplifiers Guide4 screens
Voltage Divider Calculator4 screens

Verdict

The call

The clearest difference is ads: Voltage Divider Calculator at none against Operational Amplifiers Guide's shown. Operational Amplifiers Guide's advantage is update cadence (every 2 months vs every 11 months). On price, 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

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Operational Amplifiers Guide ships an update every 2 months, Voltage Divider Calculator every 11 months. The most recent releases landed on October 1, 2026 and October 5, 2026 respectively.

Scorecard2 real differences · 7 level
Operational Amplifiers Guide versus Voltage Divider Calculator: the parameters behind the verdict, then further details
ParameterOperational Amplifiers GuideVoltage Divider Calculator
PriceFreeFree
Rating—3.3 (3 ratings) — better
Number of ratings—3 — better
Update frequencyEvery 2 months — betterEvery 11 months
AdsYesNo — better
In-app purchasesNoNo
Monetization—Free
DevicesiPhone, iPadiPhone, iPad
Requires iOS16.0 — better17.6
Further details — not scored
Size17 MB9 MB
Age rating4+4+
DeveloperALG Software LabV PUGAZHENTHI

In-app purchases

None

Operational Amplifiers Guide

No in-app purchases

None

Voltage Divider Calculator

No in-app purchases

Questions

Is Operational Amplifiers Guide free?
Operational Amplifiers Guide is free to download, with no in-app purchases.
Is Voltage Divider Calculator free?
Voltage Divider Calculator is free to download, with no in-app purchases.
Do Operational Amplifiers Guide or Voltage Divider Calculator have ads?
Operational Amplifiers Guide shows ads; Voltage Divider Calculator does not.
Which is updated more often, Operational Amplifiers Guide or Voltage Divider Calculator?
Operational Amplifiers Guide ships an update every 2 months, and Voltage Divider Calculator every 11 months. Most recently, Operational Amplifiers Guide was updated on October 1, 2026 and Voltage Divider Calculator on October 5, 2026.

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