# Transistors Handbook — user reviews

> 11 indexed App Store user reviews of Transistors Handbook by Centro Studi Informatica di Danilo Priore, rated 4.00/5 from 22 ratings.

- Source: https://appshunter.io/ios/app/transistors-handbook/id474379633/reviews
- App overview in markdown: https://appshunter.io/ios/app/transistors-handbook/id474379633.md
- Rating breakdown: 5★ 15 · 4★ 0 · 3★ 2 · 2★ 1 · 1★ 4

## Most critical reviews (10 lowest-rated)

### 1/5 — Las versión don’t work on iOS 12.4.9

*2020-12-30*

Las versión don’t work on iOS 12.4.9

**Developer response:** sorry for the inconvenience, the latest version now also works on devices with iOS 12 and 13

### 1/5 — The annoying advertisements are back on it

*2020-12-26*

The annoying advertisements are back on it

### 1/5 — Junk

*2015-11-27*

Constant crashing in search mode. Website has no way to contact publisher. Forget Report a problem. No way to report.

### 1/5 — This is a fake app

*2012-02-11*

I read the front page & buy but when I try to use it ( I am electronics technician  work in a electronics company ) I see there a few uncommon number  ,  when I search I don't  find any common or popular number / series such as 2sa ,2sb.2sc,2sd & in practically this app is use less for nothing I pay this now I think how come I complain to Apple . Apple should be stop this kind app selling  .

### 2/5 — Not sure

*2017-09-01*

Bought this app and when I start the app I am notified that there are 9 updates. I select update and the app tells me I have no internet. Yet I am able to write a review with the same internet. Hmm...

### 3/5 — Transistor

*2015-06-16, version 1.3*

Nice app 
Is it possible to save your favourite transistor searches ?

### 3/5 — Good but...

*2013-03-14*

Good info but nowhere to correct wrong data - BC546B wrong pin out image. Caused me problems

### 3/5 — OK App.

*2012-08-30*

I repair amps and thought this would help. I tried to search for transistors, and it took me a while to figure out what information I needed to get a result. It really does bring up matching numbers if you know what to do. I emailed them through Facebook.

### 4/5 — Not perfect but very handy!

*2022-01-02*

Very handy when trying to identify substitutions for obsolete and hard-to-find BJTs.

### 4/5 — Very handy app!

*2011-11-05*

Works very well, found all xisters I searched for, including some very obscure ones. Great for repairs and new projects. Also HAS outlines and basing diagrams!

## Most praised reviews (1 highest-rated)

### 5/5 — This app is a timesaver!

*2017-02-25, version 1.7*

This app is a time saver!  I was exactly what I needed- a one stop source of data on various transistors. Please note that I'm new to electronics and found myself looking for Russian GE transistors on eBay.  I new the HFE range I was looking for and this app gave me the data.  
I don't like the pop up adds which interfere once in a while.  Please know that I would gladly pay for this app because it is a great resource to any electronics enthusiast.

Thank you to the app builder for all the research time you must have put into this app.

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-06-04.*