250+ iOS apps curated and reviewed
The best weight loss surgery calculator apps on iPhone average 4.3★ 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 | 4.7★ (9) | No | No | May 2026 | |
| 2 |  | Free | 4.9★ (9) | No | No | May 2026 | |
| 3 |  | Free | — | Yes | No | Oct 2026 | |
| 4 |  | Free | 5.0★ (27) | No | No | May 2026 | |
| 5 |  | Free | 4.9★ (52K) | No | No | Oct 2026 | |
| 6 |  | Free | 4.8★ (96K) | No | No | Oct 2026 | |
| 7 |  | Free | 1.0★ (2) | No | No | Sep 2026 | |
| 8 |  | Free | 4.8★ (2.4M) | Yes | Yes | Oct 2026 |
Estimate potential weight loss from various bariatric surgeries. Calculate BMI, target weights, and percentage of excess body weight lost. Useful for medical professionals and individuals considering surgical weight loss.
This medical tool assists bariatric surgeons in evaluating patient risk and selecting the most suitable surgical procedure. It provides essential data for informed decision-making in bariatric surgery planning.
This tool accurately calculates your ideal weight using your height, current weight, age, and gender. It offers a user-friendly interface for easy data entry and interpretation, serving as a reliable companion for your health and fitness journey.
