2TBox vs STL Viewer
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
2TBox
This app connects to a diagnostic device for motorcycle ECUs, providing live readings, fault code management, and service interval tracking. It allows for real-time graphing of parameters and device firmware updates. A demo mode is available for exploration without the physical device.
- Live ECU readings
- Fault code display and clearing
- Service interval tracking
- Engine hour monitoring
- Real-time parameter graphing
- Device settings and firmware updates
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2TBox is a companion app for a diagnostic device for motorcycle ECUs. The device connects to the motorcycle; the app connects to the device over Bluetooth LE or over the device's own Wi-Fi network. The app does not work without the device. WHAT YOU SEE • Live readings: engine speed, coolant and air temperature, intake pressure, throttle position, battery voltage, ignition angle, power valve position • Fault codes: codes, descriptions, status, clearing • Service intervals for oil, air filter and spark plug, with configurable limits and reset • Engine hours, including a usage matrix by engine speed and load • Real-time graphs for any parameter • Device settings and firmware updates from the app SERVICE FUNCTIONS The set of available operations is defined by the connected device: the app shows only what the device reports as supported. The operations themselves are performed by the ECU through its own access protocol; the app only forwards the request. WITHOUT THE DEVICE The connection screen offers a demo mode: the app runs against a built-in simulator, so the whole interface can be explored. Data in this mode is simulated, as the banner at the bottom of the screen states. PRIVACY The app collects no data and sends nothing out. It talks only to your device. The single network request it makes is downloading firmware images for that device. The app is not affiliated with or endorsed by any motorcycle manufacturer.
STL Viewer
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Someone sent you a model. It's a 3MF, you're away from your computer, and your phone can't open it. LayerPeek opens it, then tells you what you need to know before you print: will it fit your printer, how many plates it has, and what might go wrong. It's a 3D model viewer made for printing: an STL file viewer, a 3MF project viewer and a G-code layer viewer in one app. No account. Your files are read on your device and never uploaded. OPEN THE FILE YOU WERE SENT • STL, 3MF, OBJ and G-code files, plus sliced .gcode.3mf projects • ZIP downloads from model sites: pick the part you want from inside the archive • Open from Files, iCloud Drive, Mail, AirDrop or a chat app with Open in… • Large models are simplified for display, while measurements use the full mesh WILL IT FIT YOUR PRINTER? Pick your printer once. Every model you open shows whether it fits the bed, with the spare room in millimeters. If it doesn't fit as it sits, LayerPeek checks whether turning it on the bed would make it fit. 3MF PROJECTS, NOT JUST SHAPES Opens 3MF projects from popular slicers with their plates and filament colors. Switch between plates and see which parts sit on each one. SLICED FILES: TIME AND GRAMS FROM THE FILE Sliced .gcode.3mf projects already carry the numbers your slicer calculated. LayerPeek reads the print time, the grams of each filament color and the plate thumbnails straight from the file. Plain .gcode files show the print time and filament use written in their header. G-CODE LAYER VIEWER • Drag the scrubber to step through the print layer by layer • See extrusion and travel moves in different colors • Print time and filament use, read from the file MEASURE AND CHECK THE MESH • Overall dimensions in millimeters • Tap two points to measure the distance between them • Mesh health: holes and open edges that can cause slicing trouble • Overhang shading shows the areas likely to need supports WEIGHT AND COST ESTIMATE Choose a material and your price per kilogram. For unsliced models, LayerPeek estimates a typical print (2 walls, 15% infill) and also shows the fully solid weight. Sliced files show the grams your slicer calculated. MAKE PARTS THAT FIT Need a part rather than a file? Pick a template, set the sizes in millimeters, see it on your printer's bed and save an STL or 3MF: • Cases for popular microcontroller and single-board computer boards, built from their published dimensions • Boxes with dividers, name tags in one or two colors, cable clips, spacers and wall mounts • Turn a photo into a lithophane, a keychain, a sign or a stamp SHARE A VERDICT CARD Turn the result into one image with a picture of the model, the fit check and the key numbers. Send it to a friend, a customer or your print group. FREE, WITH AN OPTIONAL PRO UPGRADE LayerPeek is free with ads. Pro removes the ads and unlocks the Pro Make templates, pricing a plate with cost and margin, advanced checks with multiple printers, and more colors in colour pictures. SUPPORTED FILES .stl (binary and text) · .3mf · .gcode.3mf · .obj · .gcode · .zip SUBSCRIPTION AND PRICING • LayerPeek Pro Lifetime — $9.99, one payment • LayerPeek Pro Monthly — $1.99 per month, renews automatically • Payment is charged to your Apple Account at confirmation of purchase • A subscription renews unless it is cancelled at least 24 hours before the end of the current period • Manage or cancel anytime in your Apple Account settings Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://cosmovex.web.app/apps/layerpeek/privacy-policy
Screenshots
Verdict
The clearest difference is in-app purchases: 2TBox at none against STL Viewer's 2. 2TBox also leads on ads (none vs shown). On price, update cadence, device support and iOS requirement 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. STL Viewer sells 2 in-app purchases, starting at $1.99 per month. 2TBox asks for nothing beyond the download.
2TBox ships an update weekly, STL Viewer every 6 days. The most recent releases landed on October 16, 2026 and October 19, 2026 respectively.
| Parameter | 2TBox | STL Viewer |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | — |
| Number of ratings | 1 — better | — |
| Update frequency | Weekly | Every 6 days — better |
| Ads | No — better | Yes |
| In-app purchases | No — better | Yes |
| Monetization | Free | — |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 15.1 | 15.0 — better |
| Further details — not scored | ||
| Size | 30 MB | 48 MB |
| Age rating | 4+ | 4+ |
| Developer | Natallia Samoilava | Sahana A S |
In-app purchases
2TBox
No in-app purchases
STL Viewer
- LayerPeek Pro Monthly$1.991 Month
- LayerPeek Pro Lifetime$9.99
Questions
Is 2TBox free?
Is STL Viewer free?
Do 2TBox or STL Viewer have ads?
Which is updated more often, 2TBox or STL Viewer?
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