BlueHHT vs Trayce
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
BlueHHT
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BlueHHT is a virtual hand held terminal (HHT) for use with GSI's (Gauging Systems Inc.) tank gauging transmitters. It is able to configure and monitor GSI's APTB2, APTB3, and APTB3.6 transmitter cards via a wireless UART device. BlueHHT is not a general purpose hand held terminal emulator. It only supports the specific GSI devices described here. If you need a general purpose hand held terminal emulator, please refer to the BlueQTerm app.
Trayce
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.
- 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
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Photograph your tools on a sheet of paper. Get back a Gridfinity insert with a pocket cut to each one - ready to print. THE PAPER IS THE RULER A US Letter page is 215.9 by 279.4 mm, exactly. Once Trayce finds the four corners and undoes the perspective, millimetres per pixel is known rather than estimated - so the pockets come out the size your tools actually are. ONE PHOTO, ONE INSERT Lay the tools out how you want them stored. Take one photo. Trayce traces each outline, places them on the 42 mm Gridfinity grid, cuts a pocket per tool at whatever depth you choose, and adds a finger scallop so you can actually get them out again. PRINT IT IN TWO COLOURS One part, with a single filament change so the tool shapes show up in a second colour. Or two parts - a tray plus a thin coloured inlay for each pocket, printed separately and dropped in, with no filament change at all. ADJUST WHAT MATTERS Snug, just right or loose. Per-tool depth. Finger notch size. Keep your layout or pack it tight to save plate. Save a setup and every insert after it comes out the same. EXPORTS A 3MF Both parts with their colours, in millimetres, ready for OrcaSlicer, Bambu Studio, PrusaSlicer or Cura. STLs too. YOUR PHOTOS STAY ON YOUR PHONE Every bit of the image work happens on the device. No photo, outline or model is ever uploaded. Trayce Unlimited starts with a 3-day free trial, then $2.99 a week or $99.00 a year. Cancel any time before the trial ends and you are not charged. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
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.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
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.
| Parameter | BlueHHT | Trayce |
|---|---|---|
| Price | Free | Free |
| Rating | — | 3.0 (1 ratings) — better |
| Positive reviews | — | 0.0% of reviews |
| Number of ratings | — | 1 — better |
| Update frequency | Every 12 months | Every 4 weeks — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | — | Subscription |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 13.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 15 MB | 7 MB |
| Age rating | 4+ | 4+ |
| Developer | Dohmann Engineering Services | Flayr Labs LLC |
In-app purchases
BlueHHT
No in-app purchases
Trayce
- Weekly3 Days trial$2.997 Days
- Yearly3 Days trial$99.001 Year









