250+ iOS apps curated and reviewed
The best congruenceindexapp apps on iPhone average 4.4★ 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 |  | $0.99 | — | No | No | Sep 2026 | |
| 2 |  | Free | 5.0★ (1) | No | Yes | Oct 2026 | |
| 3 |  | Free | 5.0★ (2) | No | No | Sep 2026 | |
| 4 |  | Free | — | — | No | May 2026 | |
| 5 |  | Free | — | No | Yes | Oct 2026 | |
| 6 |  | $4.99 | — | No | No | Sep 2026 | |
| 7 |  | Free | — | No | No | Nov 2026 | |
| 8 |  | $2.99 | — | No | No | Sep 2026 |
This medical reference calculator assists orthopaedic surgeons and trainees in total hip arthroplasty by applying published mathematical formulas to compute acetabular cup targets. It provides detailed calculations based on pelvic incidence, sacral slope, and femoral mobility, with all data traceable to peer-reviewed literature.
This educational tool aids in the early detection of hip displacement in children with cerebral palsy. Developed by medical experts, it provides guidelines and tools for interpreting X-rays to preserve function and prevent pain.
