# Capacitor vs Operational Amplifiers Guide

The clearest difference is ads: Capacitor at none against Operational Amplifiers Guide's shown. Operational Amplifiers Guide's advantage is update cadence (every 2 months vs every 40 months) and iOS requirement (16.0 vs 26.0). On price, in-app purchases and device support there is nothing between them.

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

Capacitor ships an update every 40 months, Operational Amplifiers Guide every 2 months. The most recent releases landed on September 9, 2026 and September 19, 2026 respectively.

## The numbers

| Metric | Capacitor | Operational Amplifiers Guide |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (10 ratings)](https://appshunter.io/ios/app/capacitor-converter/id6447107842/reviews)** | — |
| Number of ratings | **10** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 40 months | **Every 2 months** |
| Monetization | Free | — |
| Size | 8 MB | 17 MB |
| Requires iOS | 26.0 | **16.0** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Gerhard Lentschik](https://appshunter.io/developer/629988041) | [ALG Software Lab](https://appshunter.io/developer/1650561236) |

## What reviewers say

### Capacitor

[App page](https://appshunter.io/ios/app/capacitor-converter/id6447107842)

Easily determine capacitor values from color codes or calculate color codes from values. Supports both standard and SMD capacitors, providing quick and accurate conversions for electronics projects.

**Highlights:** Capacitor color code to value conversion, Value to capacitor color code conversion, SMD capacitor code to value conversion, SMD value to EIA code calculation, Supports standard and SMD capacitors

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

**In-app purchases:** none


### Operational Amplifiers Guide

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

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

**In-app purchases:** none


## Frequently asked questions

### Is Capacitor free?

Capacitor is free to download, with no in-app purchases.

### Is Operational Amplifiers Guide free?

Operational Amplifiers Guide is free to download, with no in-app purchases.

### Do Capacitor or Operational Amplifiers Guide have ads?

Operational Amplifiers Guide shows ads; Capacitor does not.

### Which is updated more often, Capacitor or Operational Amplifiers Guide?

Capacitor ships an update every 40 months, and Operational Amplifiers Guide every 2 months. Most recently, Capacitor was updated on September 9, 2026 and Operational Amplifiers Guide on September 19, 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.*