Comparison

Resistor calc vs SistroFix

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
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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

SistroFix

Features
Read full description

SistroFix es una plataforma de gestión pensada para negocios y empresas de servicio técnico que realizan reparaciones en taller y trabajos a domicilio. Centralizá en un solo lugar todo el circuito operativo: desde la recepción del equipo o la solicitud del servicio, hasta el diagnóstico, presupuesto, reparación, entrega y cobro. Gestioná órdenes de reparación y servicios con trazabilidad real Con SistroFix podés administrar el ciclo de vida completo de cada orden: registrar fallas, observaciones y cambios de estado, asignar técnicos y hacer seguimiento de lo que ocurre en cada etapa. Además, tus clientes pueden consultar el avance con seguimiento online vía QR, reduciendo llamadas y mensajes repetidos. Agenda y planificación del trabajo diario Organizá el taller y las visitas a domicilio con una agenda que te ayuda a planificar entregas, cupos y carga de trabajo. Esto permite coordinar mejor al equipo, evitar superposiciones y mantener un flujo ordenado de atención. Inventario y repuestos con control y transferencias Llevá el control de inventario y repuestos con trazabilidad de piezas, compras, proveedores y transferencias entre sucursales. Podés gestionar listas de precios, reservar inventario para reparaciones y mantener un control más fino de insumos y costos. Ventas, facturación y cuentas corrientes en un solo sistema SistroFix integra ventas en mostrador y facturación para centralizar la operación comercial: comprobantes, presupuestos, cajas/puntos de venta, devoluciones y cuentas corrientes. Ideal si además del servicio técnico vendés accesorios, repuestos o realizás trabajos adicionales. Comunicación automática con clientes: WhatsApp y Email Mantené a tus clientes informados con notificaciones automáticas: estados de reparación, presupuestos, equipos listos y comprobantes. Podés integrar el envío por WhatsApp y correo electrónico, incluyendo la posibilidad de conectar cuentas como Gmail u Outlook para automatizar comunicaciones. Funciones extra para un negocio real Dependiendo de tu operación, SistroFix también contempla herramientas como aumentos masivos, gestión de empleados y funcionalidades orientadas a la dinámica diaria (por ejemplo, impresión de tickets/etiquetas y cobros/QR según configuración). Ideal para rubros como Reparación de celulares, electrónica, informática, electrodomésticos, mantenimiento, instalaciones, climatización y servicios a domicilio.

Screenshots

Resistor calc4 screens
SistroFix4 screens

Verdict

The call

The clearest difference is price: SistroFix at Free against Resistor calc's $1.99. SistroFix also leads on update cadence (daily vs every 2 months). Resistor calc's advantage is iOS requirement (13.0 vs 16.4). 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

SistroFix 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

Resistor calc ships an update every 2 months, SistroFix daily. The most recent releases landed on October 2, 2026 and September 30, 2026 respectively.

Scorecard3 real differences · 3 level
Resistor calc versus SistroFix: the parameters behind the verdict, then further details
ParameterResistor calcSistroFix
Price$1.99Free — better
Update frequencyEvery 2 monthsDaily — better
AdsNoNo
In-app purchasesNoNo
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS13.0 — better16.4
Further details — not scored
Size17 MB57 MB
Age rating4+4+
DeveloperAnas AbubakarKevin Manuel Lorenzo Huise

In-app purchases

None

Resistor calc

No in-app purchases

None

SistroFix

No in-app purchases

Questions

Is Resistor calc free?
Resistor calc costs $1.99, with no in-app purchases.
Is SistroFix free?
SistroFix is free to download, with no in-app purchases.
Do Resistor calc or SistroFix have ads?
Neither Resistor calc nor SistroFix shows ads.
Which is updated more often, Resistor calc or SistroFix?
Resistor calc ships an update every 2 months, and SistroFix daily. Most recently, Resistor calc was updated on October 2, 2026 and SistroFix on September 30, 2026.

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