# ResiCalc vs ElectroCalc Pro

The clearest difference is in-app purchases: ResiCalc at none against ElectroCalc Pro's 1. ResiCalc also leads on ads (none vs shown). ElectroCalc Pro's advantage is update cadence (every 3 months vs every 9 months) and device support (3 vs 1). On price there is nothing between them.

Both are free to download. ElectroCalc Pro sells 1 one-off in-app purchase. ResiCalc asks for nothing beyond the download.

ResiCalc ships an update every 9 months, ElectroCalc Pro every 3 months. The most recent releases landed on November 5, 2026 and November 2, 2026 respectively.

## The numbers

| Metric | ResiCalc | ElectroCalc Pro |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 9 months | **Every 3 months** |
| Size | 4 MB | 27 MB |
| Requires iOS | 17.6 | **15.0** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [光浩 李](https://appshunter.io/developer/1576352133) | [DONGSOO LEE](https://appshunter.io/developer/1868670088) |

## What reviewers say

### ResiCalc

[App page](https://appshunter.io/ios/app/resicalc-resistor-networks/id6757947341)

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

**In-app purchases:** none


### ElectroCalc Pro

[App page](https://appshunter.io/ios/app/electrocalc-pro/id6758211193)

**Features:** macOS Compatibility, iPhone Duo support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $1.99 | one-time |


## Frequently asked questions

### Is ResiCalc free?

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

### Is ElectroCalc Pro free?

ElectroCalc Pro is free to download, with in-app purchases available.

### Do ResiCalc or ElectroCalc Pro have ads?

ElectroCalc Pro shows ads; ResiCalc does not.

### Which is updated more often, ResiCalc or ElectroCalc Pro?

ResiCalc ships an update every 9 months, and ElectroCalc Pro every 3 months. Most recently, ResiCalc was updated on November 5, 2026 and ElectroCalc Pro on November 2, 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.*