4+ iOS apps curated and reviewed
The best fastener dimensions app on iPhone average 2.0★ across 4+ titles — we've ranked them by what real users actually keep on their phones. Updated June 2026.
| # | App | Price | Rating | Ads | In-App Purchases | Updated |
|---|---|---|---|---|---|---|
| 1 |  | $4.99 | 1.0★ (2) | No | No | May 2026 |
| 2 |  | Free | 3.0★ (9) | No | Yes | May 2026 |
| 3 |  | Free | — | No | No | May 2026 |
| 4 |  | Free | — | No | No | May 2026 |
This app provides a comprehensive guide to various types of fasteners, including bolts, nuts, pins, and washers. Explore diverse options and dimensions to meet specific project requirements and enhance your understanding of these essential components.
This app provides a digital version of a pocket guide to Geometric Dimensioning and Tolerancing (GD&T). It explains GD&T symbols, their application on engineering drawings, and common inspection techniques. It also includes tools for converting measurements and calculating position tolerances.
