Comparison

Transistors Handbook vs Linear Algebra Pro

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

Linear Algebra Pro

This app provides step-by-step calculations and detailed solutions for matrix and vector operations. It's designed for students and professionals needing to solve linear algebra problems quickly and understand the underlying math.

Highlights
  • Matrix operations (addition, subtraction, multiplication)
  • Determinant calculations (Sarrus, Laplace methods)
  • Vector operations (addition, subtraction, scalar/vector product)
  • Step-by-step solutions with formulas
  • Theoretical overviews for concepts
  • Random number generator for practice problems
Features
Read full description

Linear Algebra Pro is a powerful and easy-to-use tool for calculating matrices, determinants, and vector operations — perfect for students, engineers, and anyone who works with linear algebra in study or professional tasks. The app performs step-by-step calculations with detailed solutions using the correct formulas. You can work with matrices up to 5×5 and vectors in 2D or 3D. Each calculator includes a brief theoretical overview to help you understand the concept behind the operation. It also includes a random number generator to instantly create practice problems with random values. Available in 8 languages: English, French, German, Italian, Portuguese, Spanish, Russian, Ukrainian. Whether you're learning, teaching, or solving real-world problems, Linear Algebra Pro helps you get accurate results quickly and understand the math behind them. The application perform following operations with matrices: • Matrix addition • Matrix subtraction • Matrix scalar multiplication • Matrix square • Matrix multiplication • Matrix transposition Determinant calculations: • Calculation of the determinant using the Sarrus method • Calculation of the determinant using the Laplace method Vector operations: • Vector Length • Vector coordinates by two points • Vectors addition • Vectors subtraction • Scalar and vector multiplication • Scalar product of vectors • Cross product of vectors • Mixed (scalar) triple product • Angle between two vectors • Projection of a vector onto another vector • Direction cosines • Collinear vectors • Orthogonal vectors • Coplanar vectors • Area of triangle formed by vectors • Area of a parallelogram formed by vectors • Volume of pyramid formed by vectors • Volume of a parallelepiped formed by vectors Download now and simplify your linear algebra work!

Screenshots

Transistors Handbook4 screens
Linear Algebra Pro4 screens

Verdict

The call

The clearest difference is review sentiment: Linear Algebra Pro at 100% against Transistors Handbook's 27%. Linear Algebra Pro also leads on rating (5.0 vs 4.0). Transistors Handbook's advantage is update cadence (fortnightly vs every 4 months) and ratings volume (22 vs 1). 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 Linear Algebra Pro $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

Linear Algebra Pro holds the better App Store score, 5.0 against 4.0. 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 100% of Linear Algebra Pro's.

UpkeepUpdate frequency

Transistors Handbook ships an update fortnightly, Linear Algebra Pro every 4 months. The most recent releases landed on October 6, 2026 and October 19, 2026 respectively.

Scorecard6 real differences · 4 level
Transistors Handbook versus Linear Algebra Pro: the parameters behind the verdict, then further details
ParameterTransistors HandbookLinear Algebra Pro
Price$3.99 — better$4.99
Rating4.0 (22 ratings)5.0 (1 ratings) — better
Positive reviews27.3% of reviews100.0% of reviews — better
Number of ratings22 — better1
Update frequencyFortnightly — betterEvery 4 months
AdsNoNo
In-app purchasesNoNo
MonetizationPaidPaid
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS11.4 — better16.0
Further details — not scored
Size22 MB8 MB
Age rating4+4+
DeveloperCentro Studi Informatica di Danilo PrioreALG Software Lab

Customer experience

Transistors Handbook

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

Linear Algebra Pro

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Transistors Handbook

No in-app purchases

None

Linear Algebra Pro

No in-app purchases

Questions

Is Transistors Handbook free?
Transistors Handbook costs $3.99, with no in-app purchases.
Is Linear Algebra Pro free?
Linear Algebra Pro costs $4.99, with no in-app purchases.
Which has better reviews, Transistors Handbook or Linear Algebra Pro?
Linear Algebra Pro is rated higher. Transistors Handbook averages 4.0 out of 5 from 22 ratings, while Linear Algebra Pro averages 5.0 from 1 ratings.
Do Transistors Handbook or Linear Algebra Pro have ads?
Neither Transistors Handbook nor Linear Algebra Pro shows ads.
Which is updated more often, Transistors Handbook or Linear Algebra Pro?
Transistors Handbook ships an update fortnightly, and Linear Algebra Pro every 4 months. Most recently, Transistors Handbook was updated on October 6, 2026 and Linear Algebra Pro on October 19, 2026.

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