# FieldFab vs Snap Draw Iso

The clearest difference is rating: FieldFab at 4.5 against Snap Draw Iso's 3.4. FieldFab also leads on ads (none vs shown) and ratings volume (79 vs 5). Snap Draw Iso's advantage is review sentiment (80% vs 50%) and update cadence (every 3 days vs every 6 weeks). On price, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

FieldFab holds the better App Store score, 4.5 against 3.4. That said, the two scores are not equally well evidenced: FieldFab has 79 ratings behind it against 5, so its average is the more settled of the two. Written reviews complicate that: 50% of FieldFab's written reviews are positive against 80% of Snap Draw Iso's, so the app with the better star average is not the one people write more warmly about.

FieldFab ships an update every 6 weeks, Snap Draw Iso every 3 days. Both last shipped on October 24, 2026.

## The numbers

| Metric | FieldFab | Snap Draw Iso |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (79 ratings)](https://appshunter.io/ios/app/fieldfab/id1533610600/reviews)** | [3.4 (5 ratings)](https://appshunter.io/ios/app/snap-draw-iso/id6471840091/reviews) |
| Number of ratings | **79** | 5 |
| Positive reviews | 50.0% of reviews | **80.0% of reviews** |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 6 weeks | **Every 3 days** |
| Monetization | **Free** | Ad-supported |
| Size | 112 MB | 18 MB |
| Requires iOS | 16 | **11.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Robert Sale](https://appshunter.io/developer/1533610602) | [andrew bell](https://appshunter.io/developer/445167639) |

## What reviewers say

### FieldFab

[App page](https://appshunter.io/ios/app/fieldfab/id1533610600)

This app helps HVAC installers create precise ductwork transitions in the field using augmented reality. It streamlines the process of measuring, designing, and visualizing complex ductwork before cutting any materials, saving time and reducing errors.

**Highlights:** Augmented reality visualization, Ductwork transition design, Field measurements input, Sheet metal cutting optimization, Sharing and PDF export, Open source

**Features:** macOS Compatibility

**In-app purchases:** none


### Snap Draw Iso

[App page](https://appshunter.io/ios/app/snap-draw-iso/id6471840091)

Create isometric drawings with ease using a crosshair and snap sound for precise line connections. Customize grids, colors, and import/export various formats. Offers advanced features like bitmap brushes and gradient fills for detailed designs.

**Highlights:** Isometric and 2D grids, Customizable colors, Import/Export formats, Fill options (solid, gradient, pattern), Large canvas with pan/zoom, Text and FX options, Bitmap and vector layer mixing

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is FieldFab free?

FieldFab is free to download, with no in-app purchases.

### Is Snap Draw Iso free?

Snap Draw Iso is free to download, with no in-app purchases.

### Which has better reviews, FieldFab or Snap Draw Iso?

FieldFab is rated higher. FieldFab averages 4.5 out of 5 from 79 ratings, while Snap Draw Iso averages 3.4 from 5 ratings.

### Do FieldFab or Snap Draw Iso have ads?

Snap Draw Iso shows ads; FieldFab does not.

### Which is updated more often, FieldFab or Snap Draw Iso?

FieldFab ships an update every 6 weeks, and Snap Draw Iso every 3 days. Most recently, FieldFab was updated on October 24, 2026 and Snap Draw Iso on October 24, 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.*