Comparison

EE ToolKit PRO vs CH

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

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.

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
Read 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

About

CH

Read full description

CH-OCR is a support app designed to help users better understand government notices and official letters. Administrative documents are often important, yet difficult to read due to their length, technical terminology, and unclear descriptions of what actions may be required. This app allows users to scan or import documents and uses OCR (Optical Character Recognition) and AI-based analysis to organize and highlight key information, including: A summary of the document Actions the recipient may need to take Deadlines or important notes (if stated) Amounts or reference numbers (if stated) Important Notice The content provided by this app is generated through automated OCR and AI-based analysis. Accuracy and completeness are not guaranteed. For important decisions or procedures, please always refer to the original document. CH-OCR does not replace official documents or provide legal advice. It is intended solely as a support tool to assist with understanding complex written content. User privacy and safe usage are core principles in the design of this app. With PRO, users can review analysis results in greater detail. The analyzed content, including the original text, is displayed step by step across four tabs, allowing users to compare summaries and review surrounding context and important notes. This helps ensure a more careful and thorough understanding of critical documents. PRO also supports smoother saving and sharing of analysis results, making it easier to manage and review important information over time. ※This app is designed to assist in understanding document content. Analysis results are not guaranteed to be accurate or complete. Please always refer to the original document for final decisions. End User License Agreement (EULA) The terms of use for this app can be found at the link below: https://morimori-labo.monster/privacy_apps/ch-ocr_terms.html

Screenshots

EE ToolKit PRO4 screens
CH4 screens

Verdict

The call

The clearest difference is price: CH at Free against EE ToolKit PRO's $9.99. EE ToolKit PRO's advantage is chart position (#186 vs unranked) and device support. On in-app purchases 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

CostPrice · In-app purchases · Ads · Monetization

CH is free to download; EE ToolKit PRO costs $9.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Scorecard4 real differences · 7 level
EE ToolKit PRO versus CH: the parameters behind the verdict, then further details
ParameterEE ToolKit PROCH
Price$9.99Free — better
Rating4.9 (293 ratings) — better—
Positive reviews89.6% of reviews—
Number of ratings293 — better—
Update frequencyEvery 3 months—
AdsNo—
In-app purchasesNoNo
MonetizationPaid—
Best chart rank#186 — better—
DevicesiPhone, iPad, iPod — better—
Requires iOS12.0 — better18.5
Further details — not scored
Size289 MB1 MB
Age rating4+4+
DeveloperThomas GruberJunichi Koike

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

CH

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

EE ToolKit PRO

No in-app purchases

None

CH

No in-app purchases

Questions

Is EE ToolKit PRO free?
EE ToolKit PRO costs $9.99, with no in-app purchases.
Is CH free?
CH is free to download, with no in-app purchases.

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