# Operational Amplifiers Guide vs Voltage Divider Calculator

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.

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

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.

## The numbers

| Metric | Operational Amplifiers Guide | Voltage Divider Calculator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[3.3 (3 ratings)](https://appshunter.io/ios/app/voltage-divider-calculator/id6505137107/reviews)** |
| Number of ratings | — | **3** |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | **Every 2 months** | Every 11 months |
| Monetization | — | Free |
| Size | 17 MB | 9 MB |
| Requires iOS | **16.0** | 17.6 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [ALG Software Lab](https://appshunter.io/developer/1650561236) | [V PUGAZHENTHI](https://appshunter.io/developer/491898049) |

## What reviewers say

### Operational Amplifiers Guide

[App page](https://appshunter.io/ios/app/operational-amplifiers-guide/id6467499897)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### Voltage Divider Calculator

[App page](https://appshunter.io/ios/app/voltage-divider-calculator/id6505137107)

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:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked 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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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*