# iEngineer

> Reference

Canonical page: [https://chrome-stats.com/d/id369825047](https://chrome-stats.com/d/id369825047)

## Overview

- **ID:** `id369825047`
- **Platform:** Apple
- **Type:** Apple app
- **Status:** Available
- **Publisher:** Perfectly Simple Apps LLC
- **Category:** Reference
- **Rating:** 4.60 / 5 (197 ratings)
- **Version:** 2.4
- **Last updated:** 2017-09-22
- **First published:** 2010-05-04
- **Size:** 27 MB
- **Data as of:** 2026-09-19
- **Store listing:** [Apple App Store](https://apps.apple.com/us/app/iengineer/id369825047)
- **Website:** [http://perfectlysimpleapps.com](http://perfectlysimpleapps.com/)

## Description

iEngineer is a comprehensive screw and bolt reference embedded in a Chrome extension. It features US screws (93 items from #0 to 4”, 9 head styles) and metric screws (210 items from M1.0 to M100 with ISO/DIN/BS/ANSI variants), including standard dimensions, material grades, strength, torque, clamp and shear values, head markings, and 3D head models.

Additional features include a 523‑size drill chart, a fraction chart, copy/paste of data, fast unit conversion, and the option to show/hide material grades. An in-app metric package is available, and support is available at the provided email.

## Rankings

- #105,403 — Overall

## Review summary

iEngineer is a long-running, comprehensive fastener reference that users find easy to navigate and time-saving on the shop floor. It provides broad data for fasteners, torque checks, and drill sizes. However, reviews repeatedly flag data gaps (missing dimensions, pipe-thread specs, tap drill charts), occasional torque/strength calculation inaccuracies, and a UI that hasn’t kept pace with newer iPhone displays. The metric data upgrade is valued by many. Overall, a reliable quick-reference tool with room for data completeness and UI updates.

### Pros

- Comprehensive all-in-one source for fastener data (dimensions, torque ranges, drill sizes)
- Easy to use and navigate, with information in one place
- Time-saving reference used daily by professionals and hobbyists
- Helpful for torque checks and dimension references during design and fabrication
- Long-standing tool with positive reputation and value, including metric data upgrade

### Cons

- Data gaps: missing dimensions and critical specs (pipe threads/NPT, tap drill charts, clearance fits)
- Torque/strength data accuracy issues: tensile-stress area and related torque calculations can be off
- UI not updated for modern devices; requests for optimization on iPhone X+ and larger displays

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Source: [Chrome-Stats](https://chrome-stats.com/d/id369825047)