Comparison

Transistors Handbook vs Learn Basic Computer

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

Head to head
About

Transistors Handbook

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
Read full description

Transistors Handbook - Your Transistor Guide. This app will guide you to know, choose, select and design your next board masterpiece using that transistor you weren’t remembering. With this app you can update the transistor informations and share it with other app users. What is a transistor? (from Wikipedia): “A transistor is a semiconductor device used to amplify and switch electronic signals and power. It is composed of a semiconductor material with at least three terminals for connection to an external circuit. A voltage or current applied to one pair of the transistor's terminals changes the current flowing through another pair of terminals. Because the controlled (output) power can be much more than the controlling (input) power, a transistor can amplify a signal. Today, some transistors are packaged individually, but many more are found embedded in integrated circuits.” The transistor is the fundamental building block of modern electronic devices, and is ubiquitous in modern electronic systems. Following its release in the early 1950s the transistor revolutionized the field of electronics, and paved the way for smaller and cheaper radios, calculators, and computers, among other things.” With Transistors Handbook you will se the design, the kind and all the aspects of more than 51.000 transistors, the application will provide the following info: - Kind - Graphical Schema - Code - Type - Material - Power - VCB - VCE - VEB - LC - FT - HFE - Note of the Transistor - Similar - Online Datasheet You can also use the embedded search engine to search a transistor for its name or power. The coverage of the transistors is about the complete catalogue of the Silicon and Germanium. The series included are:, PNP and NPN, series 10 ~ 12, 14 ~ 19, 25 ~ 28, 2A ~ 2D, 2G, 2H, 2N, 2P, 2S, 2T, 30, 35, 37, 38, 3N, 3O, 3S, 3T, 40 ~ 43, 45, 4N, 50, 52, 55, 56, 5N, 60, 63, 6N, 71 ~ 74, 7N, 80, 81, 85, 90, 92, 94, A1, A5, A7, A8, AC, AD, AF, AJ ~ AM, AP, AR ~ AW, BC ~ BF, BJ, BL, BN, BP, BR ~ BV, C0 ~ C9, CA ~ CE, CG ~ CN, CP ~ CV, CX, D1 ~ D8, DA ~ DD, DH, DJ, DK, DM, DN, DP ~ DT, DW, DX, DZ, E1 ~ E3, E5 ~ E7, EA, EC, ED, EF, EJ, EL ~ EN, EQ ~ ET, EW, F1 ~ F5, FA ~ FH, FJ, FK, FM ~ FQ, FS, FT, FV, FX, FZ, G2, G6, GA ~ GF, GI, GM, GP, GS, GT, HA ~ HF, HK, HL, HN, HP, HS, HT, HV, HX, ID, IM, IN, IR, IT, J2, J4, J6, JA, JC, JE, JF, JO, K2, K4, K9, KD ~ KG, KM ~ KP, KR ~ KU, L4, L5, LB, LD, LI, LJ, LL ~ LP, LT, LX, M1, M2, MA ~ MH, MJ, MM ~ MU, MX, MZ, NA ~ NC, NJ, NK, NM, NP, NR ~ NT, NX, NZ, OC, OD, P2 ~ P4, P6, P7, P9, PB ~ PE, PH ~ PO, PR ~ PU, PX, PZ, Q, Q5, R3, R5, R7 ~ R9, RC, RE, RJ, RS, RT, RV, S0 ~ S2, S4 ~ S9, SA, SC ~ SH, SK, SM, SN, SP, SQ, SS, ST, SV, SX, SY, T0 ~ T3, TA, TB, TD ~ TF, TI, TK ~ TN, TP, TR, TS, TV, U2, UC, UM, UN, UP, V1, V2, V4, V7, W2, WT, XA ~ XC, XP, XQ, XS, ZB, ZD, ZG, ZH, ZT, ZU, ZX, with volts, frequencies, power, HFE (gain), similar transistors and pin design. The list may not be exhaustive, if you find any transistor missing, let us know. *** Don't forget to check also our Mosfet Handbook application. The perfect companion of Transistors Handbook.

About

Learn Basic Computer

Learn the fundamentals of how computers operate and how to use them effectively. This app covers essential topics like hardware, software, operating systems, and basic applications through lessons and interactive content.

Highlights
  • Computer setup guidance
  • Hardware vs. Software explanation
  • Operating system basics
  • Application usage
  • File management
  • Word processing fundamentals
  • Spreadsheet basics
Features
Read full description

This app will help you understand how computers work and how to use them. We'll talk about how to set up a computer, the difference between hardware and software, and the types of computers you can use. We'll also explore operating systems, applications, the cloud, and a whole lot more. Using a computer Whether you're getting started with your first computer or are just looking to learn more about how they work, you'll find all of the information you need in our written lessons, videos, and interactives. When you're done, you'll have a fundamental understanding of how to use a computer. You'll also be ready to learn even more about computers with some of our other app. What is a computer? A computer is an electronic device that manipulates information, or data. It has the ability to store, retrieve, and process data. You may already know that you can use a computer to type documents, send email, play games, and browse the Web. You can also use it to edit or create spreadsheets, presentations, and even videos. Hardware vs. Software Hardware is any part of your computer that has a physical structure, such as the keyboard or mouse. It also includes all of the computer's internal parts, which you can see in the image below. viewing hardware. Software is any set of instructions that tells the hardware what to do and how to do it. Examples of software include web browsers, games, and word processors. viewing software. Everything you do on your computer will rely on both hardware and software. For example, right now you may be viewing this lesson in a web browser (software) and using your mouse (hardware) to click from page to page. As you learn about different types of computers, ask yourself about the differences in their hardware. As you progress through this tutorial, you'll see that different types of computers also often use different types of software. Hardware and software The main components of a computer, including input and output devices The function of communication devices such as smartphones and tablets The role of Operating Systems, programs and apps. Windows Turning on the computer and logging on The Windows screen Running programs from the Start Menu Minimising, maximising, moving, resizing and closing windows Logging off and shutting down your computer. Working with programs Running multiple programs Desktop icons and creating a desktop shortcut Managing programs from the taskbar Closing programs. File management Managing Windows Explorer Creating, moving, renaming and deleting folders and files Understanding file extensions Viewing storage devices and network connections Managing USB flash drives. Word processing Creating documents in Microsoft Word Typing text, numbers and dates into a document Easy formatting Checking the spelling in your document Making and saving changes to your document. Spreadsheets Understanding spreadsheet functionality Creating spreadsheets in Microsoft Excel Typing text numbers and dates into a worksheet Easy formulas Easy formatting Making and saving changes to your workbook Printing a worksheet. Printing Print preview Print settings Managing the print queue. Using email The Outlook mail screen elements Composing and sending an email message Managing the Inbox. Accessing the internet Going to a specific website and bookmarking Understanding how to search/Google effectively Copy and paste Internet content into your documents and emails Stopping and refreshing pages Demystifying the Cloud Computer security best practices

Screenshots

Transistors Handbook4 screens
Learn Basic Computer4 screens

Verdict

The call

The clearest difference is rating: Transistors Handbook at 4.0 against Learn Basic Computer's 1.0. Transistors Handbook also leads on update cadence (fortnightly vs every 28 months) and review sentiment (27% vs 0%). Learn Basic Computer's advantage is price ($1.99 vs $3.99). On ads, in-app purchases, monetization model and device support 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

Transistors Handbook costs $3.99 and Learn Basic Computer $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

Transistors Handbook holds the better App Store score, 4.0 against 1.0. That said, the two scores are not equally well evidenced: Transistors Handbook has 22 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 27% of Transistors Handbook's written reviews are positive against 0% of Learn Basic Computer's.

UpkeepUpdate frequency

Transistors Handbook ships an update fortnightly, Learn Basic Computer every 28 months. The most recent releases landed on October 6, 2026 and October 12, 2026 respectively.

Scorecard5 real differences · 5 level
Transistors Handbook versus Learn Basic Computer: the parameters behind the verdict, then further details
ParameterTransistors HandbookLearn Basic Computer
Price$3.99$1.99 — better
Rating4.0 (22 ratings) — better1.0 (1 ratings)
Positive reviews27.3% of reviews — better0.0% of reviews
Number of ratings22 — better1
Update frequencyFortnightly — betterEvery 28 months
AdsNoNo
In-app purchasesNoNo
MonetizationPaidPaid
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS11.4 — better12.0
Further details — not scored
Size22 MB30 MB
Age rating4+4+
DeveloperCentro Studi Informatica di Danilo PrioreSaqib Masood

Customer experience

Transistors Handbook

All ratings22 ratings
Positive68.2%
Neutral9.1%
Negative22.7%
Written reviews11 reviews
Positive27.3%
Neutral27.3%
Negative45.5%

Learn Basic Computer

All ratings1 ratings
Positive0.0%
Neutral0.0%
Negative100.0%
Written reviews1 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

In-app purchases

None

Transistors Handbook

No in-app purchases

None

Learn Basic Computer

No in-app purchases

Questions

Is Transistors Handbook free?
Transistors Handbook costs $3.99, with no in-app purchases.
Is Learn Basic Computer free?
Learn Basic Computer costs $1.99, with no in-app purchases.
Which has better reviews, Transistors Handbook or Learn Basic Computer?
Transistors Handbook is rated higher. Transistors Handbook averages 4.0 out of 5 from 22 ratings, while Learn Basic Computer averages 1.0 from 1 ratings.
Do Transistors Handbook or Learn Basic Computer have ads?
Neither Transistors Handbook nor Learn Basic Computer shows ads.
Which is updated more often, Transistors Handbook or Learn Basic Computer?
Transistors Handbook ships an update fortnightly, and Learn Basic Computer every 28 months. Most recently, Transistors Handbook was updated on October 6, 2026 and Learn Basic Computer on October 12, 2026.

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