# Transistors Handbook vs SymCalc+

The clearest difference is review sentiment: SymCalc+ at 74% against Transistors Handbook's 27%. SymCalc+ also leads on rating (4.7 vs 3.9) and ratings volume (91 vs 24). Transistors Handbook's advantage is price ($3.99 vs $9.99) and update cadence (fortnightly vs every 5 weeks). On ads, in-app purchases, monetization model and device support there is nothing between them.

Transistors Handbook costs $3.99 and SymCalc+ $9.99 up front. Neither carries in-app purchases, so what you see is what you pay.

SymCalc+ holds the better App Store score, 4.7 against 3.9. Both are backed by a comparable volume of ratings — 24 and 91 respectively. Written reviews point the same way: 27% of Transistors Handbook's written reviews are positive against 74% of SymCalc+'s.

Transistors Handbook ships an update fortnightly, SymCalc+ every 5 weeks. The most recent releases landed on November 1, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | Transistors Handbook | SymCalc+ |
| --- | --- | --- |
| Price | **$3.99** | $9.99 |
| Rating | [3.9 (24 ratings)](https://appshunter.io/ios/app/transistors-handbook/id474379633/reviews) | **[4.7 (91 ratings)](https://appshunter.io/ios/app/symcalc-plus/id1275900301/reviews)** |
| Number of ratings | 24 | **91** |
| Positive reviews | 27.3% of reviews | **73.7% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Fortnightly** | Every 5 weeks |
| Monetization | Paid | Paid |
| Size | 22 MB | 46 MB |
| Requires iOS | **11.4** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Centro Studi Informatica di Danilo Priore](https://appshunter.io/developer/409935887) | [Voxeloid Kft.](https://appshunter.io/developer/307013528) |

## What reviewers say

### Transistors Handbook

[App page](https://appshunter.io/ios/app/transistors-handbook/id474379633)

This app serves as a comprehensive guide to transistors, offering detailed information on over 51,000 types. Users can search for transistors by name or power, view graphical schemas, and access datasheets. It's designed to assist in selecting and designing electronic circuits.

**Highlights:** Database of over 51,000 transistors, Detailed transistor specifications, Graphical schema and code information, Search by name or power, Online datasheet access, Information on Silicon and Germanium transistors

**Features:** macOS Compatibility

**In-app purchases:** none


### SymCalc+

[App page](https://appshunter.io/ios/app/symcalc-plus/id1275900301)

This app provides advanced mathematical calculations, from basic arithmetic to university-level topics. It combines the functionality of a scientific graphing calculator with the ease of a mobile application, offering symbolic computation and detailed feature explanations.

**Highlights:** Exact arithmetic and numerical modes, Symbolic algebra and calculus operations, Matrix operations and linear algebra, Equation and differential equation solvers, Complex number arithmetic, Interactive graphing, Session management and PDF export

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

**In-app purchases:** none


## Frequently asked questions

### Is Transistors Handbook free?

Transistors Handbook costs $3.99, with no in-app purchases.

### Is SymCalc+ free?

SymCalc+ costs $9.99, with no in-app purchases.

### Which has better reviews, Transistors Handbook or SymCalc+?

SymCalc+ is rated higher. Transistors Handbook averages 3.9 out of 5 from 24 ratings, while SymCalc+ averages 4.7 from 91 ratings.

### Do Transistors Handbook or SymCalc+ have ads?

Neither Transistors Handbook nor SymCalc+ shows ads.

### Which is updated more often, Transistors Handbook or SymCalc+?

Transistors Handbook ships an update fortnightly, and SymCalc+ every 5 weeks. Most recently, Transistors Handbook was updated on November 1, 2026 and SymCalc+ on November 3, 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.*