Comparison

Opamp tools vs EDoctronics

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

Head to head
About

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

About

EDoctronics

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EDoctronics es la app de referencia para estudiantes y profesores de electrónica. Calcula, simula y aprende con herramientas interactivas diseñadas para todos los niveles. MÓDULOS INCLUIDOS Ley de Ohm Calcula voltaje, corriente, resistencia y potencia. Visualiza la fórmula paso a paso con sustitución de valores reales. Código de colores de resistencias Decodifica resistencias de 4, 5 y 6 bandas. Visualización del cuerpo de la resistencia con colores reales y rango de tolerancia. Display de 7 segmentos Simulador interactivo con modo manual, por dígito y animación automática. Incluye tabla de verdad completa para ánodo y cátodo común. Compuertas lógicas Simula AND, OR, NOT, NAND, NOR, XOR y XNOR. Diagrama visual con señales en tiempo real y tabla de verdad interactiva. Calculadora LED Calcula la resistencia limitadora de corriente para cualquier LED. Muestra la resistencia estándar E24 más cercana y la potencia disipada. SI Unidades del Sistema Internacional Convierte entre prefijos SI para las principales magnitudes eléctricas: voltaje, corriente, resistencia, capacitancia, inductancia, frecuencia y potencia. DISEÑO PENSADO PARA APRENDER - Fórmulas con sustitución de valores reales - Explicaciones en español claro - Resultados al instante sin conexión a internet - Interfaz técnica tipo plano de ingeniería EDoctronics funciona completamente sin conexión. Ideal en el taller, el laboratorio o el salón de clase.

Screenshots

Opamp tools4 screens
EDoctronics4 screens

Verdict

The call

The clearest difference is in-app purchases: EDoctronics at none against Opamp tools's 1. EDoctronics also leads on update cadence (every 3 weeks vs every 12 months). Opamp tools's advantage is ads (none vs shown) and device support (3 vs 1). On price 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. Opamp tools sells 1 one-off in-app purchase. EDoctronics asks for nothing beyond the download.

UpkeepUpdate frequency

Opamp tools ships an update every 12 months, EDoctronics every 3 weeks. The most recent releases landed on May 16, 2026 and September 10, 2026 respectively.

Scorecard5 real differences · 1 level
Opamp tools versus EDoctronics: the parameters behind the verdict, then further details
ParameterOpamp toolsEDoctronics
PriceFreeFree
Update frequencyEvery 12 monthsEvery 3 weeks — better
AdsNo — betterYes
In-app purchasesYesNo — better
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS12.0 — better18.6
Further details — not scored
Size4 MB5 MB
Age rating4+4+
DeveloperSiu Yuen HoJonathan Abimael Cruz Orozco

In-app purchases

1 purchases

Opamp tools

One-time1
  • Unlock pro feature$1.99
None

EDoctronics

No in-app purchases

Questions

Is Opamp tools free?
Opamp tools is free to download, with in-app purchases available.
Is EDoctronics free?
EDoctronics is free to download, with no in-app purchases.
Do Opamp tools or EDoctronics have ads?
EDoctronics shows ads; Opamp tools does not.
Which is updated more often, Opamp tools or EDoctronics?
Opamp tools ships an update every 12 months, and EDoctronics every 3 weeks. Most recently, Opamp tools was updated on May 16, 2026 and EDoctronics on September 10, 2026.

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