# GD&T pro vs Revit Visual Lab

The clearest difference is price: GD&T pro at $9.99 against Revit Visual Lab's $19.99. GD&T pro also leads on chart position (#184 vs unranked) and iOS requirement (15.0 vs 17.0). Revit Visual Lab's advantage is update cadence (every 3 months vs every 13 months). On ads, in-app purchases and device support there is nothing between them.

GD&T pro costs $9.99 and Revit Visual Lab $19.99 up front. Neither carries in-app purchases, so what you see is what you pay.

GD&T pro ships an update every 13 months, Revit Visual Lab every 3 months. The most recent releases landed on November 4, 2026 and November 9, 2026 respectively.

## The numbers

| Metric | GD&T pro | Revit Visual Lab |
| --- | --- | --- |
| Price | **$9.99** | $19.99 |
| Rating | **[2.7 (3 ratings)](https://appshunter.io/ios/app/gd-and-t-pro/id976631549/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 13 months | **Every 3 months** |
| Monetization | Paid | — |
| Best chart rank | **#184** | — |
| Size | 102 MB | 50 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Carl Zeiss AG](https://appshunter.io/developer/488066215) | [Yuhsiu Lai](https://appshunter.io/developer/433114647) |

## What reviewers say

### GD&T pro

[App page](https://appshunter.io/ios/app/gd-and-t-pro/id976631549)

**Currently charting:** #184 Top Paid · Education (US App Store)

This app serves as a multimedia reference for learning and interpreting geometric dimensioning and tolerancing (GD&T) based on ISO 1101 standards. It provides clear definitions and practical examples of various form and position tolerances, aiding engineers and employees in understanding and applying these concepts.

**Highlights:** Learn GD&T according to ISO 1101, Multimedia reference book, Explains definitions with examples, Covers form and position tolerances, Includes 52 animations, Basic information and advanced tolerances

**In-app purchases:** none


### Revit Visual Lab

[App page](https://appshunter.io/ios/app/revit-visual-lab-a-bim-guide/id6765581222)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is GD&T pro free?

GD&T pro costs $9.99, with no in-app purchases.

### Is Revit Visual Lab free?

Revit Visual Lab costs $19.99, with no in-app purchases.

### Do GD&T pro or Revit Visual Lab have ads?

Neither GD&T pro nor Revit Visual Lab shows ads.

### Which is updated more often, GD&T pro or Revit Visual Lab?

GD&T pro ships an update every 13 months, and Revit Visual Lab every 3 months. Most recently, GD&T pro was updated on November 4, 2026 and Revit Visual Lab on November 9, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*