204+ iOS apps curated and reviewed
The best mobile viewer apps on iPhone average 4.1★ across 204+ titles — we've ranked them by what real users actually keep on their phones. Updated July 2026.
| # | App | Price | Rating | Ads | In-App Purchases | Updated |
|---|---|---|---|---|---|---|
| 1 |  | Free | 3.0★ (4) | No | No | May 2026 |
| 2 |  | Free | 3.0★ (2) | No | No | May 2026 |
| 3 |  | Free | — | No | No | May 2026 |
| 4 |  | Free | 4.5★ (3.5K) | No | Yes | Aug 2026 |
| 5 |  | Free | — | No | No | May 2026 |
| 6 |  | Free | 4.2★ (64) | No | Yes | May 2026 |
| 7 |  | Free | 2.3★ (322) | No | No | Jul 2026 |
| 8 |  | Free | 3.6★ (25) | No | No | May 2026 |
This medical application allows healthcare professionals to remotely view patient data from various monitoring devices connected to a central system. It provides access to vital signs and other critical information for informed decision-making.
Access medical images from a central DICOM server on your mobile device. This application supports various viewing functions like windowing, zoom, and measurement. It is intended for review purposes only and requires specific server software.
Edit, convert, and manage PDF documents on your mobile device. This app allows you to directly edit text, scan documents, fill out forms, and secure your files with passwords and watermarks. It also supports OCR to extract text from scans and convert PDFs to various formats.
This application allows users to view, control, and manage network cameras. It supports a wide range of IP cameras and offers features essential for surveillance and monitoring. Users can group cameras, utilize PTZ controls, and view live feeds at high frame rates.
Control your Nice home entertainment and management system remotely. Manage media, climate, lighting, security, and more from your iPhone or iPad. Access a live demo system to explore its capabilities.
View and interact with 3D construction models on your Apple device. Collaborate with designers, inspect sites virtually, and report issues with photos or printouts. Enhance productivity through seamless communication.
Monitor live camera feeds from your NVR/DVR devices. View multiple cameras simultaneously in various grid layouts and control PTZ functions. Receive event notifications for enhanced security.
Stream video footage directly from your Ensurity devices. This application allows for seamless playback of recorded content, providing easy access to your security or surveillance feeds.
Access and control your computers from your iOS device. Remotely reboot machines and manage your RemoteToPC Command Center from anywhere. This viewer is compatible with iPhone and iPad.
Experience your future kitchen, bedroom, or bathroom designs in 3D. This app allows clients to pan around and visualize their new spaces created with compatible design software. Explore sample designs to see the creative technology in action.
View live and archived video streams from surveillance cameras connected to a server. Access your security footage remotely from your mobile devices.
Explore street-level imagery worldwide with live traffic data and GPS navigation. View panoramas by tapping on a map or searching for an address. Share and bookmark locations for easy access.
This app offers a mobile-optimized experience for viewing various document types, including Microsoft Office files, PDFs, and TXT. It provides smart document management features and supports cloud integration for easy access to your files.
This app allows you to view and organize medical imaging studies like MRI and CT scans directly on your iPhone. Import studies from folders or ZIP archives, adjust image settings, add annotations, and sort your research into custom folders for easy access.
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.