App Overview

3D & STL Model Viewer - Mes3D icon

3D & STL Model Viewer - Mes3D

ONNEX YAZILIM ANONIM SIRKETI · Developer Tools

Open and inspect STL, STEP, 3MF, OBJ and other 3D files right on your iPhone and iPad.

Free · In-app purchases

PRICE
Free
In-app purchases
BUSINESS MODEL
Freemium
No overall Grossing estimate available
RATING
★ 4.7
22 ratings · Top 15%

Evidence scope: No current overall US chart position is available. Category-chart positions shown in discovery are a separate scope. Revenue is a directional model estimate, not verified earnings.

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Build Kit

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A product spec, screen plans, and build steps for your coding agent.

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What's included17 files

A product spec, phased build plan, differentiation notes, and screen references.

  • START_HERE
  • AGENTS
  • EVIDENCE
  • SPEC
  • BUILD_PLAN
  • DIFFERENTIATION
  • skills/
  • screens/
Preview a sample Build Kit No email needed

Illustrative example: an invoice app for independent contractors. Your kit is tailored to the app you choose; this is not its generated content.

Feature spec

Goal: Send a clear invoice after finishing a job.

  • Add a client, line items, a due date, and payment instructions.
  • Preview the total before exporting a PDF.
  • Keep an editable draft if export fails.

Screen plan

Invoice editor: Client at the top, editable line items in the middle, total and preview action at the bottom.

States: Empty draft, validation errors beside each field, exporting, and a retry action that preserves the draft.

Differentiate and validate

Hypothesis: Contractors need faster repeat invoices more than more templates.

First experiment: Test duplicating a previous job with five contractors. Watch where they hesitate before expanding the feature set.

The full kit adds a phased build plan, evidence notes, tool prompts, and implementation guidance. It is a plan for your coding agent, not a finished app.

Usage: Mechanics are fair game; never reuse the original name, branding, assets, or verbatim copy.

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Quick prompt

> SELECT BUILD PLATFORM:

Good fit for mobile-first iOS and Android prototypes with managed app scaffolding.

// RORK SYSTEM PROMPT
Rork plan preview for 3D & STL Model Viewer - Mes3D: map the core Developer Tools workflow, choose the smallest differentiated feature set, define the data and monetization boundaries, then prototype the riskiest user journey first.
            

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App evidence

Original App Store material. Ratings and screenshots describe the existing app, not proof of demand for your version.

Screenshots

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App Store description

Open and inspect STL, STEP, 3MF, OBJ and other 3D files right on your iPhone and iPad. Mes3D is a fast 3D model viewer. Rotate, zoom, look inside with a section view, check dimensions and try edits for free. Mes3D Pro adds measuring, AR, full print analysis and export. OPEN 3D FILES - STL, STEP, STP, 3MF, OBJ, glTF, GLB, USDZ, USD, USDA, USDC, PLY, OFF, AMF, 3DS, DAE, 3DM, ABC and ZIP - Open files from the Files app, cloud storage or other apps with Share / Open in - Select an OBJ with its material and texture files, or open them as one ZIP, to keep colors and textures - On iPad, drag and drop files into the app VIEW AND NAVIGATE - Rotate, pan and zoom with simple gestures - One-tap front, back, left, right, top and bottom views - Perspective or orthographic projection, wireframe and auto-rotate - Original colors and textures, or preset model and background colors DIMENSIONS AND UNITS - Width, height and depth at a glance - mm, cm, m or inches; set the file's units and get a hint when a file looks like it was saved in inches SECTION VIEW - Slide a cutting plane along X, Y or Z to see inside the model, and flip it to view the other side EDIT TOOLS - Resize to exact dimensions, rotate in 90° steps and cut with a plane, with the option to fill the cut surface - Undo, redo or revert to the original - Edits are free to try; exporting or saving the edited model requires Pro MODEL ANALYSIS - Volume, surface area, triangle count and a quick print-readiness check - With Pro: estimated print weight (PLA, PETG, ABS, resin), wall thickness, overhang area, detailed checks for open edges, non-manifold edges, flipped normals and degenerate triangles, and color overlays that highlight issues on the model LIBRARY - Models you open are saved to your library with thumbnails - Organize them into collections and sub-collections PREVIEWS IN THE FILES APP - See thumbnails of STL, 3MF, OBJ, PLY, OFF, glTF and GLB files in the Files app and preview them without opening Mes3D SNAPSHOTS - Save images of your model to Photos, copy or share them. Free snapshots include a Mes3D watermark. MES3D PRO - Point-to-point distance and angle measurement - View models in AR at real-world scale on supported devices - Full model analysis: weight, wall thickness, detailed printability checks and overlays - Export edited models as STL, 3MF or OBJ, or save a copy to your library - Unlimited library. The free version keeps up to 3 of your own models; the included sample models don't count. - Custom model and background colors - Watermark-free snapshots You can try every Pro tool on the included sample models before you decide. Mes3D Pro is available as an auto-renewing subscription or a one-time lifetime purchase. Available plans, prices and any free trial are shown in the app before you buy. Payment is charged to your Apple Account at confirmation of purchase. Subscriptions renew automatically unless canceled at least 24 hours before the end of the current period; renewal is charged within the 24 hours before the period ends. You can manage or cancel your subscription in your App Store account settings. PRIVACY Your 3D files are opened and processed on your device. Mes3D does not upload your models. The app collects app usage and diagnostic data to improve Mes3D, as described in the Privacy Policy. GOOD TO KNOW - Mes3D displays models as meshes. Animations, advanced materials and complex scene hierarchies may not appear in full for every format. - Measurements and analysis depend on the units and quality of the source file. Print weight is an estimate that assumes 100% infill. - Available in 35 languages, with a language setting inside the app. Terms of Use: https://www.notion.so/Mes3d-Terms-of-Use-33f686c61ac4802e8635e101e12ef136 Privacy Policy: https://www.notion.so/Mes3d-Privacy-Policy-33f686c61ac480a4ac4edf69c42488d9

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Opportunities

AI-GENERATED OPPORTUNITY HYPOTHESES

These are generated suggestions, not verified review quotations. Check current App Store reviews and speak with users before treating a possible gap as a requirement.

Hypothesis 1

Allow exporting in multiple formats like OBJ, FBX.

Assumption to check: Limited export options for 3D models

Validate with people who use this workflow before building.

Hypothesis 2

Optimize rendering for large STL files.

Assumption to check: Performance issues with large models

Validate with people who use this workflow before building.

Hypothesis 3

Add tutorials or tooltips for new users.

Assumption to check: Lack of detailed user guidance

Validate with people who use this workflow before building.

Hypothesis 4

Implement sharing and collaboration options for teams.

Assumption to check: No collaboration features

Validate with people who use this workflow before building.

Build scope

Plan a focused first version with your coding agent. These are planning assumptions, not a delivery guarantee.

Define the first version

Choose one audience and one core workflow. Use the kit to agree on its screens, data, and acceptance criteria before building.

Set boundaries

Decide which secondary features, integrations, and platform support can wait. Your version does not need to reproduce everything in the original.

Check the hard parts

Validate external services, specialist technology, data access, and ongoing costs for your chosen scope.

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BUILD KIT DIFFICULTY
Intermediate

From the Build Kit assessment.

A reliable timeline needs an agreed scope and a technical check. Ask your agent to estimate the phases in BUILD_PLAN.md after that review.