250+ iOS apps curated and reviewed
The best layout calc pro apps on iPhone average 4.4★ across 250+ titles — we've ranked them by what real users actually keep on their phones. Updated July 2026.
| # | App | Price | Rating | Ads | In-App Purchases | Updated |
|---|---|---|---|---|---|---|
| 1 |  | Free | 5.0★ (21) | Yes | Yes | Jul 2026 |
| 2 |  | Free | — | No | Yes | Jul 2026 |
| 3 |  | Free | — | No | Yes | Jul 2026 |
| 4 |  | Free | — | No | Yes | Jul 2026 |
| 5 |  | $3.99 | — | No | No | Jul 2026 |
| 6 |  | Free | 4.7★ (60K) | No | No | Jul 2026 |
| 7 |  | Free | 5.0★ (1) | No | Yes | May 2026 |
| 8 |  | Free | — | Yes | No | May 2026 |
This tool provides precise pipe layout calculations for professionals in welding and fabrication. It offers various offset and fitting calculators, along with data tools for custom angles and triangle solutions. Easily switch between imperial and metric units for field or shop use.
This app offers both basic and scientific calculation modes with over 30 scientific operations. It allows for customization of the app's appearance and includes features for note-taking, drawing, and viewing calculation history. It supports high accuracy calculations and nested parentheses.
This engineering tool simplifies flange hole layout for professionals. It offers three calculators for accurate marking of equispaced, angled, or equivalent holes, saving time and reducing errors in fabrication and machining. Works offline.
This utility app offers a straightforward calculator with a customizable flat design. Users can select from five color themes and choose a preferred function key from options like percentage or tax. It also features calculation history and clipboard integration for easy data transfer.
This tool helps you quickly and accurately calculate the spacing and positions for marks at equal intervals. Input total length, divisions, and margins to get precise measurements, ideal for planning and on-site work.
This app simplifies circle geometry calculations by instantly solving for all properties (radius, area, diameter, circumference) from a single known value. It's ideal for students, engineers, designers, and DIYers needing quick, accurate measurements.
