250+ iOS apps curated and reviewed
The best available fault current calculator apps on iPhone average 3.5★ across 250+ titles — we've ranked them by what real users actually keep on their phones. Updated October 2026.
| # | App | Price | Rating | Ads | In-App Purchases | Updated | |
|---|---|---|---|---|---|---|---|
| 1 |  | Free | 3.1★ (23) | No | Yes | Aug 2026 | |
| 2 |  | Free | — | No | Yes | Jul 2026 | |
| 3 |  | Free | 4.2★ (5) | No | Yes | May 2026 | |
| 4 |  | Free | 1.0★ (2) | Yes | No | Aug 2026 | |
| 5 |  | $7.99 | — | No | No | Jul 2026 | |
| 6 |  | $12.99 | 4.4★ (1.5K) | No | No | Oct 2026 | |
| 7 |  | Free | 4.7★ (1.3K) | Yes | Yes | Oct 2026 | |
| 8 |  | Free | 4.6★ (126) | Yes | Yes | Sep 2026 |
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.
This tool models electrical distribution systems to calculate available fault current. It helps engineers and electricians ensure equipment is rated for maximum fault current, meeting NEC and IEC standards. Generate reports for compliance and safety.
