61+ iOS apps & games curated and reviewed
Out of 61+ flange hole marker apps and games on iOS, 17 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 |  | $1.99 | — | No | No | Aug 2026 | |
| 2 |  | $3.99 | 5.0★ (1) | No | No | Oct 2026 | |
| 3 |  | $2.99 | — | No | No | Aug 2026 | |
| 4 |  | Free | 4.7★ (3) | No | Yes | Oct 2026 | |
| 5 |  | Free | 5.0★ (13) | No | No | Jul 2026 | |
| 6 |  | Free | 4.6★ (88K) | Yes | Yes | Oct 2026 | |
| 7 |  | Free | 4.6★ (295K) | Yes | Yes | Oct 2026 | |
| 8 |  | Free | 5.0★ (2) | No | Yes | Oct 2026 |
Calculate the cord length needed to mark holes on a flange's pitch circle diameter. Ideal for fabrication professionals, this tool simplifies bolt hole marking on various industrial equipment.
This engineering tool accurately calculates and marks bolt hole positions on flanges for machinists and fabricators. It offers features for equispaced, angle-based, and equivalent hole counts, saving time and reducing manual errors in workshop settings.
Calculate precise flange hole markings for equispaced holes, angles, and equivalent hole counts. Supports both millimeters and inches for various fabrication and engineering applications.
