# Cortex 5.0 vs Filter Calculator

The clearest difference is in-app purchases: Cortex 5.0 at none against Filter Calculator's 1. Cortex 5.0 also leads on ads (none vs shown) and iOS requirement (10.0 vs 15.0). Filter Calculator's advantage is update cadence (every 5 months vs every 20 months) and device support (3 vs 1). On price there is nothing between them.

Both are free to download. Filter Calculator sells 1 one-off in-app purchase. Cortex 5.0 asks for nothing beyond the download.

Cortex 5.0 ships an update every 20 months, Filter Calculator every 5 months. The most recent releases landed on September 20, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | Cortex 5.0 | Filter Calculator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/cortex-50/id940894725/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 20 months | **Every 5 months** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 83 MB | 53 MB |
| Requires iOS | **10.0** | 15.0 |
| Devices | iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [PCS Edventures!](https://appshunter.io/developer/920195647) | [Anas Abubakar](https://appshunter.io/developer/1581534101) |

## What reviewers say

### Cortex 5.0

[App page](https://appshunter.io/ios/app/cortex-50/id940894725)

This app provides a drag-and-drop interface for programming robotics kits, generating Arduino code. It allows users to build and program robots that interact with their environment using sensors and various building systems. The user-friendly, game-like environment is ideal for learning programming and Arduino coding.

**Highlights:** Drag-and-drop programming interface, Generates Arduino code, Supports multiple building systems (fischertechnik, LEGO, K'NEX, VEX), Robot interaction with sensors, Game-like learning environment, iPad compatible

**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 Cortex 5.0 free?

Cortex 5.0 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 Cortex 5.0 or Filter Calculator have ads?

Filter Calculator shows ads; Cortex 5.0 does not.

### Which is updated more often, Cortex 5.0 or Filter Calculator?

Cortex 5.0 ships an update every 20 months, and Filter Calculator every 5 months. Most recently, Cortex 5.0 was updated on September 20, 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.*