EE ToolKit PRO vs Filters
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
EE ToolKit PRO
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.
- 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
Read full descriptionHide full description
This is the brand-new Electronics Engineering ToolKit PRO! The HIGHLY RATED and RECOMMENDED productivity app. Users say it is the BEST and MOST PRACTICAL Electronics App in the whole iTunes App Store. From an electronics enthusiast with a master's degree in Electronics Engineering. This App is for engineers, students and hobbyists and anyone interested in Electronics Engineering. The App gets CONSTANT and POWERFUL improvements! !!! This is a UNIVERSAL App - for iPhone and iPad !!! 100% PRO from the beginning without any In-App purchase! The EE ToolKit PRO is the preferred Electronics App at schools and universities. It is available through the Volume Purchase Program with a discount for educational institutions. Many students, teachers and professors have downloaded the App and are using it during their studies and career. WHAT OTHER USERS ARE SAYING: “Awesome app, constant and powerful improvements” This app was worth every penny I paid for it back when I bought it years ago. Since then, I’ve regularly used it at work and found it to be an excellent, quick tool to use. The most impressive aspect of this app are the constant and VERY impressive updates! Massive feature additions and very easy to use interface! The list of capabilities this app has makes it an amazing value for truly anyone involved in electronics. “Latest version makes this an exceptional tool” The EE Toolkit was always a very useful tool, but with the additions in the latest version it is truly an exceptional tool. The author is extremely diligent in managing bugs and improving the tool. “A superb app highly recommended” Fantastic application. Very useful. Always updated. Good developer. Lots of great bonus tools. Just love it. "Incredible useful, worth the money" I have had this app for a while now. Originally as an Electrical Engineering student I didnt really use it but once I was out in the field it became my bible. I definitely recommend to any engineering students/professionals alike. I also recommend buying the Pro version because it is definitely worth it. FEATURES OF THE EE TOOLKIT: Ω more than 160 electronic applications Ω amazingly great multi-functional keyboard Ω huge selection of color code tools and SMD code tools Ω audio scope and a frequency pitch detector Ω favorites page only for the tools that you have marked as favorite Ω full-featured frequency generator Ω extra large component reference section (incl. 7400 Series, PIC family, etc.) with the option to open pdf datasheets live or by e.g. iBooks Ω 555 Timer Tools with the most important application examples Ω extensive collection of Single Board Computers (more than 120 different boards!!!) Ω PCB trace impedance tools for several different structures Ω simple and quick unit conversion within the single calculators Ω fast on-the-fly conversions and calculations Ω real-time circuit simulations of the example circuits Ω support for preferred E series, sliders and min/max calculations Ω auto-save of all entries over several sessions Ω file manager to save and load individual calculations Ω built-in access to your iCloud Ω formula search tool with quick links to the tool which uses the formula Ω and many many more
Filters
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.
- 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
Read full descriptionHide full description
"Filters" is an application for the calculation of electronic filters for the construction of speaker systems. The program automatically calculates the values of electronic components (inductors, capacitors) of electronic filters depending by the desired speaker impedance and the cutoff frequency. The software can calculate and design the circuits (filters) for high, medium, low, sub woofer, etc... first and second order. Once calculated the filter’s circuit the app will automatically design for You the frequency and phase diagrams (Bode plots). Build the speakers of your dreams with "Filters"! Features: - Automatic calculation of the electronic components of the filters for high, medium, low, sub woofers etc... - Display of frequency and phase diagrams (Bode plots) for the calculated values of the circuit’s electronic components - Display electronic circuit’s schema (filter) - Complete theory for formulas/circuits for all the filters implemented in "Filters"
Screenshots
Verdict
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.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
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.
| Parameter | EE ToolKit PRO | Filters |
|---|---|---|
| Price | $9.99 | $0.99 — better |
| Rating | 4.9 (293 ratings) — better | 3.0 (1 ratings) |
| Positive reviews | 89.6% of reviews — better | 0.0% of reviews |
| Number of ratings | 293 — better | 1 |
| Update frequency | Every 3 months — better | Every 40 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Paid |
| Best chart rank | #80 — better | — |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 12.0 — better | 16.0 |
| Further details — not scored | ||
| Size | 289 MB | 3 MB |
| Age rating | 4+ | 4+ |
| Developer | Thomas Gruber | Gianluca Natalini |
Customer experience
EE ToolKit PRO
Filters
Bugs and requests
EE ToolKit PRO
Reported bugs
3 issues- 7400 routine causes app to close
- Resistor value calculation issues
- Compatibility problems with newer iOS versions
Requested features
5 requests- 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
Not enough reviews yet to summarise bugs or requests.
In-app purchases
EE ToolKit PRO
No in-app purchases
Filters
No in-app purchases
Questions
Is EE ToolKit PRO free?
Is Filters free?
Which has better reviews, EE ToolKit PRO or Filters?
Do EE ToolKit PRO or Filters have ads?
Which is updated more often, EE ToolKit PRO or Filters?
Other comparisons















