# GD&T Check

> Education

Canonical page: [https://chrome-stats.com/d/id6801021289](https://chrome-stats.com/d/id6801021289)

## Overview

- **ID:** `id6801021289`
- **Platform:** Apple
- **Type:** Apple app
- **Status:** Available
- **Publisher:** Alec Flavio Cardenas
- **Category:** Education
- **Rating:** 5.00 / 5 (1 ratings)
- **Version:** 1.0.1
- **Last updated:** 2026-08-17
- **First published:** 2026-08-17
- **Size:** 621 KB
- **Data as of:** 2026-09-20
- **Store listing:** [Apple App Store](https://apps.apple.com/us/app/gd-t-check/id6801021289)
- **Privacy policy:** [https://github.com/alec0507/gdtcheck-privacy](https://github.com/alec0507/gdtcheck-privacy)

## Description

Validate GD&T callouts against ASME Y14.5-2018 rules instantly — built for engineering students.

GD&T Check helps mechanical engineering students validate their Geometric Dimensioning and Tolerancing callouts before submitting CAD drawings.

Select a feature type, pick a GD&T symbol, enter your tolerance and datum references, and the app instantly tells you if your callout is valid or invalid — with a specific explanation of what it means and what to fix.

CALLOUT CHECKER
Build a feature control frame step by step. The app validates your combination against ASME Y14.5-2018 rules and flags errors like missing datum references, incompatible feature types, or incorrect material condition modifiers.

PLAIN-ENGLISH EXPLANATIONS
Every callout gets translated into a clear sentence explaining what it physically means — no more guessing what a tolerance zone actually controls.

SYMBOL REFERENCE LIBRARY
Browse all 14 GD&T symbols with definitions, when to use each one, common mistakes, and datum rules. Organized by category: Form, Orientation, Location, Profile, and Runout.

SAVED HISTORY
Keep a log of every callout you check. Useful as a running reference while working through drawings or homework.

Built for students learning GD&T in college-level CAD, manufacturing, and metrology courses. Works fully offline — no account required, no internet needed.

## Rankings

- #830,170 — Overall

## Similar extensions and apps

- [GD&T pro](https://chrome-stats.com/d/id976631549) — 2.70 / 5
- [GD & T Guide](https://chrome-stats.com/d/id1374135977) — 3.00 / 5
- [GDTPro: GD&T ASME Calculator](https://chrome-stats.com/d/id6758917712)
- [GD&T](https://chrome-stats.com/d/id627973440)
- [GD&T HD](https://chrome-stats.com/d/id627968870) — 2.00 / 5
- [2i GD&T](https://chrome-stats.com/d/id6742566468)
- [Mechanical APPvisor](https://chrome-stats.com/d/id1300094843)
- [Geometry Drawing Tool](https://chrome-stats.com/d/id6783234491)
- [ISO Fits & Tolerance Tools](https://chrome-stats.com/d/id6761895214)
- [DatumLab](https://chrome-stats.com/d/id6780406607)
- [GeoSketch](https://chrome-stats.com/d/id6802162876)
- [CNC Machinist Calculator](https://chrome-stats.com/d/id6605942020) — 5.00 / 5

---

Source: [Chrome-Stats](https://chrome-stats.com/d/id6801021289)