250+ iOS apps curated and reviewed
Finding the right g-code viewer & converter apps can be overwhelming with so many options. We've analyzed 250+ apps to bring you the best choices for 2026, from free options to premium solutions with advanced features.
| # | App | Price | Rating | Ads | In-App Purchases | Updated |
|---|---|---|---|---|---|---|
| 1 |  | Free | 4.3★ (64) | No | Yes | Aug 2026 |
| 2 |  | Free | 4.5★ (1.1K) | Yes | Yes | Aug 2026 |
| 3 |  | Free | 5.0★ (2) | No | Yes | Jul 2026 |
| 4 |  | Free | — | No | No | May 2026 |
| 5 |  | $1.99 was $2.99 | 3.0★ (2) | No | No | Aug 2026 |
| 6 |  | Free | 4.6★ (48) | No | Yes | Aug 2026 |
| 7 |  | Free | 4.8★ (617K) | No | Yes | Aug 2026 |
| 8 |  | Free | 4.6★ (12K) | No | No | Aug 2026 |
This app is a text editor for G-Code and M-Code, designed for machining on CNC and lathe machines. It allows users to import, save, and visualize STL models with a built-in 3D renderer. Subscriptions are available and can be canceled anytime.
This cross-platform CAD application allows users to view, edit, and create 2D and 3D designs on the go. It supports a wide range of file formats and offers advanced tools for precise drawing, measurement, and annotation, even offline.
This tool allows users to view and simulate CNC machine code (G-code) and 3D model files (STL) before production. It helps prevent errors, save tools, and reduce setup times for machinists, programmers, and engineers.
Easily view and convert CNC machine code files on your mobile device. Supports various export formats like PDF, SVG, DXF, and IGES. Load files directly from compressed archives for convenient access.
Easily open and explore 3D model files on your iPhone or iPad. Supports over 20 popular formats, offering smooth viewing with intuitive touch controls. Ideal for designers, engineers, architects, and students working with 3D data.
This app is a comprehensive file manager and document editor for mobile devices. It allows users to organize, edit, convert, and annotate various file types, including PDFs, Office documents, and audio/video files. It also features transcription, scanning, and cloud integration.
A powerful code editor for mobile devices, offering syntax highlighting for over 80 languages, remote file access, and a built-in terminal. Perfect for developers who need to code on the go with a well-designed interface.
Easily convert image formats, perform basic edits like rotation and cropping, and compress files without losing quality. This tool is designed for everyday photo editing, office work, and design drafts, requiring no professional skills.
This app offers a comprehensive suite of offline conversion tools for various file types, including documents, images, audio, and video. It features advanced functionalities like OCR, currency conversion, and code formatting, all processed locally for maximum privacy and security.
View and manage source code files for over 60 programming languages. Open Xcode projects, navigate code with a table of contents, and access files via drag-and-drop, GitHub, or "Open In" functionality. Customize your viewing experience with 30+ color themes.
This app allows you to view and edit various file types, including code, databases, archives, images, and videos. It supports multiple programming languages and character encodings for code viewing and editing.
This application allows engineers, machinists, and designers to view and inspect complex 3D CAD models on iOS devices. It supports a wide range of file formats and offers tools for measurement, material assignment, and weight calculation, all while operating fully offline.
Easily convert files to various vector and image formats like SVG, EPS, and PDF. Select your input, choose an output, and convert in seconds. Save, share, or open converted files directly from the app.