# Electrical Filters vs Filter Calculator

The clearest difference is in-app purchases: Electrical Filters at none against Filter Calculator's 1. Electrical Filters also leads on ads (none vs shown) and update cadence (monthly vs every 5 months). On price and device support there is nothing between them.

Both are free to download. Filter Calculator sells 1 one-off in-app purchase. Electrical Filters asks for nothing beyond the download.

Electrical Filters ships an update monthly, Filter Calculator every 5 months. The most recent releases landed on October 18, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | Electrical Filters | Filter Calculator |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | **Monthly** | Every 5 months |
| Monetization | — | Free with in-app purchases |
| Size | 7 MB | 53 MB |
| Requires iOS | **5.1.1** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Ali Lopez](https://appshunter.io/developer/406751495) | [Anas Abubakar](https://appshunter.io/developer/1581534101) |

## What reviewers say

### Electrical Filters

[App page](https://appshunter.io/ios/app/electrical-filters/id416473314)

**Features:** macOS Compatibility

**In-app purchases:** none


### Filter Calculator

[App page](https://appshunter.io/ios/app/filter-calculator-electronics/id6754560517)

Design various types of electronic filters, including RC, RL, RLC, and passive crossovers, with customizable orders and alignments. Instantly obtain component values and Bode insights for lab, classroom, or audio projects. Ideal for engineers, hobbyists, and students.

**Highlights:** Design RC, RL, and RLC filters (2nd-7th order), Butterworth & Chebyshev alignments, Passive crossover calculations, Twin-T notch filter design, Instant component values, Bode insights, Offline-friendly dark mode UI

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Upgrade to Pro | $2.99 | one-time |


## Frequently asked questions

### Is Electrical Filters free?

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

### Is Filter Calculator free?

Filter Calculator is free to download, with in-app purchases available.

### Do Electrical Filters or Filter Calculator have ads?

Filter Calculator shows ads; Electrical Filters does not.

### Which is updated more often, Electrical Filters or Filter Calculator?

Electrical Filters ships an update monthly, and Filter Calculator every 5 months. Most recently, Electrical Filters was updated on October 18, 2026 and Filter Calculator on October 13, 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.*