# EE ToolKit PRO vs Filters

The clearest difference is review sentiment: EE ToolKit PRO at 90% against Filters's 0%. EE ToolKit PRO also leads on rating (4.9 vs 3.0) and update cadence (every 3 months vs every 40 months). Filters's advantage is price ($0.99 vs $9.99). On ads, in-app purchases and monetization model there is nothing between them.

EE ToolKit PRO costs $9.99 and Filters $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

EE ToolKit PRO holds the better App Store score, 4.9 against 3.0. That said, the two scores are not equally well evidenced: EE ToolKit PRO has 293 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 90% of EE ToolKit PRO's written reviews are positive against 0% of Filters's.

EE ToolKit PRO ships an update every 3 months, Filters every 40 months. The most recent releases landed on September 21, 2026 and September 7, 2026 respectively.

## The numbers

| Metric | EE ToolKit PRO | Filters |
| --- | --- | --- |
| Price | $9.99 | **$0.99** |
| Rating | **[4.9 (293 ratings)](https://appshunter.io/ios/app/ee-toolkit-pro/id368780426/reviews)** | [3.0 (1 ratings)](https://appshunter.io/ios/app/filters/id369326771/reviews) |
| Number of ratings | **293** | 1 |
| Positive reviews | **89.6% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 months** | Every 40 months |
| Monetization | Paid | Paid |
| Best chart rank | **#86** | — |
| Size | 289 MB | 3 MB |
| Requires iOS | **12.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Thomas Gruber](https://appshunter.io/developer/342699861) | [Gianluca Natalini](https://appshunter.io/developer/348380792) |

## What reviewers say

### EE ToolKit PRO

[App page](https://appshunter.io/ios/app/ee-toolkit-pro/id368780426)

**Currently charting:** #86 Top Paid · Productivity (US App Store)

This comprehensive toolkit offers over 160 electronic applications, calculators, and reference sections for electronics engineers, students, and hobbyists. It includes features like a multi-functional keyboard, color code tools, audio scope, and circuit simulations, with ongoing improvements and updates.

**Highlights:** Over 160 electronic applications, Multi-functional keyboard, Color code and SMD code tools, Audio scope and frequency generator, Component reference section with datasheets, 555 Timer tools, PCB trace impedance calculators, Real-time circuit simulations

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

**In-app purchases:** none

**What reviewers like**

- 🚀 Top-notch tool
- 👍 Extremely helpful
- 🔥 Invaluable for electronics work
- 💯 Excellent app
- 🔍 Comprehensive reference

**What reviewers complain about**

- 🐛 Occasional crashes or bugs
- 🔍 UI could be more intuitive
- 📱 Some features not optimized for mobile
- 🔢 Limited functionality for advanced users

**Reported bugs**

- 7400 routine causes app to close
- Resistor value calculation issues
- Compatibility problems with newer iOS versions

**Requested features**

- Add support for vacuum tubes
- Implement logarithmic frequency sweep
- Include more component pinout information
- Integrate a circuit builder/simulator
- Add DB to RMS and peak-to-peak conversion


### Filters

[App page](https://appshunter.io/ios/app/filters/id369326771)

This application assists in calculating electronic filter components for speaker systems. It automatically determines inductor and capacitor values based on desired impedance and cutoff frequency, and designs circuits for various speaker types. Users can visualize frequency and phase diagrams for their custom speaker designs.

**Highlights:** Automatic electronic component calculation, Frequency and phase diagram display (Bode plots), Electronic circuit schema display, Support for various speaker types (high, mid, low, sub), First and second-order filter design, Complete filter theory and formulas

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

**In-app purchases:** none


## Frequently asked questions

### Is EE ToolKit PRO free?

EE ToolKit PRO costs $9.99, with no in-app purchases.

### Is Filters free?

Filters costs $0.99, with no in-app purchases.

### Which has better reviews, EE ToolKit PRO or Filters?

EE ToolKit PRO is rated higher. EE ToolKit PRO averages 4.9 out of 5 from 293 ratings, while Filters averages 3.0 from 1 ratings.

### Do EE ToolKit PRO or Filters have ads?

Neither EE ToolKit PRO nor Filters shows ads.

### Which is updated more often, EE ToolKit PRO or Filters?

EE ToolKit PRO ships an update every 3 months, and Filters every 40 months. Most recently, EE ToolKit PRO was updated on September 21, 2026 and Filters on September 7, 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.*