# BlueHHT vs Trayce

The clearest difference is in-app purchases: BlueHHT at none against Trayce's 2. BlueHHT also leads on iOS requirement (13.0 vs 17.0). Trayce's advantage is update cadence (every 4 weeks vs every 12 months). On price, ads and device support there is nothing between them.

Both are free to download. Trayce sells 2 in-app purchases, starting at $2.99 per 7 days. BlueHHT asks for nothing beyond the download.

BlueHHT ships an update every 12 months, Trayce every 4 weeks. The most recent releases landed on October 27, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | BlueHHT | Trayce |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[3.0 (1 ratings)](https://appshunter.io/ios/app/trayce-easy-3d-tool-tracing/id6800563242/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 12 months | **Every 4 weeks** |
| Monetization | — | Subscription |
| Size | 15 MB | 7 MB |
| Requires iOS | **13.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Dohmann Engineering Services](https://appshunter.io/developer/401682475) | [Flayr Labs LLC](https://appshunter.io/developer/1862001845) |

## What reviewers say

### BlueHHT

[App page](https://appshunter.io/ios/app/bluehht/id1551056680)

**Features:** macOS Compatibility

**In-app purchases:** none


### Trayce

[App page](https://appshunter.io/ios/app/trayce-easy-3d-tool-tracing/id6800563242)

Capture your tools with a photo, and this app generates custom 3D printable Gridfinity inserts. It precisely traces tool outlines, cuts pockets to your chosen depth, and adds finger scallops for easy removal. Export your designs in 3MF or STL formats for popular slicers.

**Highlights:** Photograph tools for precise tracing, Automatic Gridfinity insert generation, Customizable pocket depth and finger scallops, Supports two-color or two-part printing, Adjustable fit (snug, just right, loose), Save and reuse tool setups, Export in 3MF and STL formats

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly | $2.99 | per 7 days |
| Yearly | $99.00 | per year |


## Frequently asked questions

### Is BlueHHT free?

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

### Is Trayce free?

Trayce is free to download, with in-app purchases available.

### Do BlueHHT or Trayce have ads?

Neither BlueHHT nor Trayce shows ads.

### Which is updated more often, BlueHHT or Trayce?

BlueHHT ships an update every 12 months, and Trayce every 4 weeks. Most recently, BlueHHT was updated on October 27, 2026 and Trayce on October 25, 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.*