249+ iOS apps curated and reviewed
The best transistors handbook apps on iPhone average 4.5★ across 249+ titles — we've ranked them by what real users actually keep on their phones. Updated September 2026.
| # | App | Price | Rating | Ads | In-App Purchases | Updated | |
|---|---|---|---|---|---|---|---|
| 1 |  | $3.99 | 4.0★ (22) | No | No | May 2026 | |
| 2 |  | Free | 3.3★ (4) | No | No | May 2026 | |
| 3 |  | Free was $5.99 | 4.8★ (986) | No | Yes | Sep 2026 | |
| 4 |  | Free | 4.9★ (11) | Yes | Yes | Aug 2026 | |
| 5 |  | Free | 4.7★ (1.4K) | No | Yes | Sep 2026 | |
| 6 |  | Free | 5.0★ (2) | Yes | No | Aug 2026 | |
| 7 |  | Free | 4.8★ (436) | No | Yes | Sep 2026 | |
| 8 |  | Free | 4.7★ (2.5K) | No | No | Sep 2026 |
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.
This app provides essential tools and calculators for electronics engineering students and professors. It includes features for circuit design, simulation, and understanding fundamental electronic concepts. Stay updated with industry news through an integrated RSS feed.
This app provides electricians, students, and installers with essential electrical theory, interactive diagrams, and practical calculators. It includes a community forum for users to share knowledge and seek advice, all accessible offline without ads or subscriptions.
