Opamp tools vs Learn About Electronics
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Opamp tools
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This app is the collection of operational amplifier calculators. It is suitable for hobbyist or electronic engineer. Features * Inverting amplifier * Non-Inverting amplifier * Differential amplifier * Summing amplifier * Inverting comparator * First-order filter * Second-order filter (HPF) * Phase shift oscillator * Colpitts oscillator * Limit 5 combinations of component values * Share CSV via AirDrop * Upload CSV to iCloud Drive (For iOS8 or later) Pro Features * Instrumentation amplifier * Non-inverting comparator * Second-order filter (LPF) * Wien bridege oscillator * Hartley oscillator * No limitation of the number of suggestions * Selectable 1%,5%,10%,20% of values
Learn About Electronics
This educational app helps users memorize and identify electronic components through study modes and quizzes. It features audio pronunciation in English and progress tracking for each chapter. Users can bookmark flashcards and quiz questions for focused learning.
- Audio pronunciation of components
- Study mode
- Quiz mode
- Bookmarking flashcards and questions
- Progress indicators
- Text-to-speech functionality
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This app is a great resource to memorize Electronic Components. The app is engineered to make users perfect identifying famous electronic components by studying for a very short amount of time. Audio functionality and bookmarking is available throughout the app on chapter, section, study mode and quiz modes. The app will help you learn the correct pronunciation of Electronic Components using English language. Following are the main features of this app 1. Supports pronouncing Electronic Components in English Language 2. Uses Text to Speech Engine for Audio Functionality 3. Quizzes 4. Study Mode 5. Bookmarking Study Flashcards and Quiz Questions 6. Progress Indicators for Every Chapter 7. Visualization for Overall Progress Currently following Electronic Components are supported Wires Connected Wires Unconnected Wires Input Bus Line Output Bus Line Terminal Bus Line Push Button (Normally Open) Push Button (Normally Closed) SPST Switch SPDT Switch DPST Switch DPDT Switch Relay Switch AC Supply DC Supply Constant Current Source Controlled Current Source Controlled Voltage Source Single Cell Battery Multi Cell Battery Sinusoidal Generator Pulse Generator Triangular Wave Ground Signal Ground Chassis Ground Fixed Resistor Rheostat Preset Thermistor Varistor Magneto Resistor LDR Tapped resistor Attenuator Memristor Non Polarized Capacitor Polarized Capacitor Electrolytic Capacitor Feed through Capacitor Variable Capacitor Iron Core Inductor Ferrite Core Inductors Center Tapped Inductors Variable Inductors Pn Junction Diode Zener Diode Photodiode Led Varactor Diode Shockley Diode Schottky Diode Tunnel Diode Thyristor Constant Current Diode Laser Diode NPN PNP N- Channel JFET P-Channel JFET Enhancement MOSFET Depletion MOSFET Phototransistor Photo Darlington Darlington Transistor And Gate Or Gate Nand Gate Nor Gate Not Gate Exor Exnor Buffer Tri-State Buffer Flip Flop Basic Amplifier Operational Amplifier Antenna Loop Antenna Dipole Antenna Transformer Iron Core Center Tapped Step Up Transformer Step Down Transformer Buzzer Loud Speaker Light Bulb Motor Fuse Crystal Oscillator ADC DAC Thermocouple
Screenshots
Verdict
The clearest difference is update cadence: Learn About Electronics at every 3 weeks against Opamp tools's every 12 months. Opamp tools's advantage is iOS requirement (12.0 vs 15.1). 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. Opamp tools sells 1 one-off in-app purchase and Learn About Electronics sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
Opamp tools ships an update every 12 months, Learn About Electronics every 3 weeks. The most recent releases landed on May 16, 2026 and June 1, 2026 respectively.
| Parameter | Opamp tools | Learn About Electronics |
|---|---|---|
| Price | Free | Free |
| Rating | — | 3.5 (2 ratings) — better |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | — | 2 — better |
| Update frequency | Every 12 months | Every 3 weeks — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | — | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 12.0 — better | 15.1 |
| Further details — not scored | ||
| Size | 4 MB | 28 MB |
| Age rating | 4+ | 4+ |
| Developer | Siu Yuen Ho | Ghumman Tech LLC |
In-app purchases
Opamp tools
- Unlock pro feature$1.99
Learn About Electronics
- Remove Ads$9.99





