Best Stp File Apps

31+ iOS apps curated and reviewed

3.7 avg rating
18 free apps
Updated June 2026

Out of 31+ stp file apps on iOS, 18 are free and the rest sit in the paid tier. This page sorts them so you can compare both sides before you commit.

Top Picks for Stp File

DWG FastView-CAD Viewer&Editor#3

DWG FastView-CAD Viewer&Editor by Gstarsoft Co., Ltd

* Support 2D/3D CAD formats
Worth Considering
📊 Productivity
3.7😐(50 ratings)
FreeAdsIn-App Purchases
DWG FastView-CAD Viewer&Editor screenshot 1
DWG FastView-CAD Viewer&Editor screenshot 2
DWG FastView-CAD Viewer&Editor screenshot 3
DWG FastView-CAD Viewer&Editor screenshot 4
DWG FastView-CAD Viewer&Editor screenshot 5
DWG FastView-CAD Viewer&Editor screenshot 6

DWG FastView-CAD Viewer allows users to view, edit, and share CAD drawings on mobile devices with ease. This intuitive app enables quick access to important design files anytime, anywhere. Access professional-grade features on-the-go and streamline your CAD workflow today.

What We Love

  • 🚀 Fast and efficient
  • 👍 Easy to use and intuitive
  • 💡 Convenient mobile CAD viewing and editing
  • 🚀 Quick file loading

Room to Improve

  • 🐛 Crashes and freezes
  • 💰 Subscription model with limited free features
  • 🔒 Lack of customer support and communication

More Stp File apps to explore

4
AutoCAD
AutoCAD
AutoCAD
DWG Viewer & Editor
Free

View and edit AutoCAD drawings on the go! Access all DWG files, annotate, measure, and share designs easily. Download now to streamline your workflow.

📊 Productivity
(6.3K)
5
3D CAD Model Viewer
3D CAD Model Viewer
3D CAD Model Viewer
by Machine Research Corporation
Free

This application allows users to view, analyze, and share 3D CAD models and drawings, making it easier to collaborate and work efficiently. It helps machine shops increase profitability by cataloging and automating their library of previous work, enabling instant search and recall of quotes and models to streamline the quoting process.

💼 Business
(13)
6
Glovius - 3D CAD File Viewer
Glovius - 3D CAD File Viewer
Glovius - 3D CAD File Viewer
View CAD files on iPhone, iPad
Free

This application allows users to view, analyze, and collaborate on 3D CAD files on their iPhone or iPad, supporting various file formats. With this app, users can view and interact with 3D models, take measurements, run reports, and share feedback with their team, making it a perfect tool for on-the-go collaboration and design review.

🔧 Utilities
(1)
7
STL File Viewer Pro
STL File Viewer Pro
STL File Viewer Pro
Simplest Way To View STL Files
Free

View and interact with your 3D STL models with ease, rotating, zooming, and inspecting them with smooth and intuitive gestures. Download now to explore your 3D models in a comfortable and efficient way, perfect for 3D printing, CAD modeling, and more.

🛠️ Developer Tools
(50)
8
iFTP Pro - The File Transfer, Manager and Editor
iFTP Pro - The File Transfer, Manager and Editor
iFTP Pro - The File Transfer, Manager and Editor
by Jayanti Katariya
Free

This all-in-one file transfer and management app allows users to seamlessly transfer files via FTP and SFTP, manage local storage, and edit text files with a built-in advanced text editor. With features like offline access, background downloads, and dual-view mode, users can efficiently manage files and work on multiple tasks simultaneously.

💼 Business
(10)
9
Wingstop
Wingstop
Wingstop
Wings for Delivery or Carryout
Free

Order wings, tenders, and delicious sides with ease using our app. Conveniently order for pickup or delivery, customize your meals, and enjoy multiple payment options. Download now for a flavorful experience!

🍔 Food & Drink
(1.4M)
10
CAD Reader-View & Measure DWG
CAD Reader-View & Measure DWG
CAD Reader-View & Measure DWG
DWG & PDF viewer
Free

This cross-platform CAD software allows users to view, measure, and annotate DWG, DXF, and PDF files, providing essential tools for engineers, designers, and quantity surveyors. With features such as measurement tools, collaboration tools, and advanced features like PDF to CAD conversion, it enables efficient work and collaboration, try it now!

📊 Productivity
(2.5K)
11
Pst Mail
Pst Mail
Pst Mail
Outlook pst file viewer
$9.99

This application allows you to transfer and view Outlook pst files on your device, accessing your messages without needing a server connection, saving you money on your data plan. With various features such as searching, filtering, and sorting, you can easily manage your emails, attachments, and contacts, and even customize settings and protect your data with a password.

📊 Productivity
(40)
12
Quick STL Viewer
Quick STL Viewer
Quick STL Viewer
by KEAT MEN TANG
Free
🔧 Utilities
(4)
13
txt-maker: Create a .txt file
txt-maker: Create a .txt file
txt-maker: Create a .txt file
Simple & light txt editor
Free

This text editor and notepad application allows you to easily create and edit .txt files, share them, and send via email. With features like multiple window editing, automatic saving, and customizable email templates, you can efficiently work with plain text files and try it out today.

🔧 Utilities
(8)
14
Termux+
Termux+
Termux+
File admin & Terminal Console
Free

Manage files efficiently with TermuXL: SSH, SFTP, Shell - a versatile application for seamless file administration. Take control of remote servers, transfer files securely, and execute commands with ease. Download now and streamline your file management tasks!

🛠️ Developer Tools
(222)
15
SFTP File Provider
SFTP File Provider
SFTP File Provider
Access files on SFTP servers
Free

Access files and folders on remote servers using the Secure File Transfer Protocol, making them available for all apps on your device. Install the app, add your servers, and enable the new location provider to start managing your remote files.

📊 Productivity
(10)
16
IGES & STEP Viewer
IGES & STEP Viewer
IGES & STEP Viewer
View and export 3D CAD files
$7.99
$9.99 | 20% OFF

This application allows users to quickly view and export 3D CAD files in various formats, offering features such as rendering control, model info, and graphic operations. Try it now to easily open, view, and export your IGES and STEP model files to popular CAD formats.

📊 Productivity
(8)
17
Daiki Axis STP
Daiki Axis STP
Daiki Axis STP
by Sarmad Rahman
Free
💼 Business
(0)
18
Viewra CAD
Viewra CAD
Viewra CAD
Your next CAD file viewer
Free
🔧 Utilities
(0)
19
STM Montevideo
STM Montevideo
STM Montevideo
by Gabriel Yordi
Free

Consulta los horarios de tus ómnibus en tiempo real y planifica tus viajes de manera eficiente. Con esta aplicación, puedes ver horarios por puntos de control y paradas, buscar líneas de ómnibus para llegar a un lugar, ubicar direcciones y encontrar puestos de recarga de tarjetas.

🔧 Utilities
(46)
20
TP-Link FileBank
TP-Link FileBank
TP-Link FileBank
by TP-Link Systems Inc.
Free
🔧 Utilities
(3)