249+ iOS apps curated and reviewed
Out of 249+ substation short circuit apps on iOS, 18 are free and the rest sit in the paid tier. This page sorts them so you can compare both sides before you commit.
| # | App | Price | Rating | Ads | In-App Purchases | Updated | |
|---|---|---|---|---|---|---|---|
| 1 |  | $24.99 | 5.0★ (2) | No | No | Sep 2026 | |
| 2 |  | Free | — | No | Yes | Oct 2026 | |
| 3 |  | Free | 3.1★ (23) | No | Yes | Aug 2026 | |
| 4 |  | Free | 4.2★ (5) | No | Yes | May 2026 | |
| 5 |  | $9.99 | — | No | No | Sep 2026 | |
| 6 |  | Free | — | No | Yes | Jul 2026 | |
| 7 |  | Free | 4.8★ (436) | No | Yes | Oct 2026 | |
| 8 |  | Free | 5.0★ (6) | No | No | Sep 2026 |
This app assists electrical engineers and technicians in estimating fault current for equipment specification. It calculates various fault current values and compares them against equipment ratings, also providing conductor data and saving calculation history.
This tool helps contractors, engineers, and electricians quickly calculate available fault current on single and three-phase electrical systems. It also assists in sizing fuses and conductors for various circuits and can generate labels for service equipment.
