Prompt 3 vs MDViewer
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Prompt 3
A fully-native terminal emulator for Apple devices, offering robust connectivity for SSH, Mosh, and more. It features fast emulation, customizable clips, secure authentication, and cross-device syncing for a seamless experience.
- Native terminal emulator
- SSH, Mosh, Eternal Terminal, Telnet support
- Panic Sync for cross-device server syncing
- Superfast emulation with GPU acceleration
- Customizable clips for commands
- FaceID/TouchID authentication
- Jump Hosts and Agent Forwarding
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Prompt 3 is our #1 fully-native terminal emulator for Mac, iPhone, iPad, and now, Apple Vision Pro! Yes, with one purchase, you get four platforms. Supporting SSH, Mosh, Eternal Terminal, Telnet, and Local Shells (on Mac), you can stay connected even on the most unstable networks. And with Panic Sync, your servers sync everywhere. For terminals, this is the only app you need. NOW EVEN BETTER: • SSH, Telnet, and Local (for Mac) Rock-solid and reliable connectivity to your hosts. • Mosh and Eternal Terminal Keep your terminal open even when you get disconnected. Mosh is optimized for high-latency, low-throughput networks. Eternal Terminal is great for when you need to keep your full terminal history on a flaky connection. • Lower Price Everything is so expensive right now. So we made Prompt cheaper. Take that, capitalism. • Superfast Emulation We retooled the text engine in Prompt 3 to be up to 10x faster, including GPU acceleration, and with improved terminal emulation, you can run nvim inside tmux without breaking a sweat. • Clips Put your most-used commands and text bits into clips and access them with a single tap via Prompt’s keyboard bar. Clips can be stored globally or per-server. • Secure Enclave Authenticate with FaceID and TouchID. The keys will stay secure on your device. • Panic Sync Sync your favorite servers, passwords, private keys, and clips, between Prompt on all of your devices. • Customizable Make Prompt perfect with new themes, fonts, and a very configurable iOS keyboard. • Jump Hosts and Agent Forwarding Access corporate servers, even at the beach. • Mouse Support Use your mouse to interact with TUI-based apps that run through the terminal. AND YES, A DARK ICON. What more can we say? TAKE CONTROL FROM ANYWHERE, INCLUDING YOUR MAC AND APPLE VISION PRO. WE HOPE YOU ENJOY PROMPT 3. © Panic EULA: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
MDViewer
Instantly view Markdown, Mermaid diagrams, and JSON files with this native iOS app. It offers syntax highlighting for over 180 languages, LaTeX math rendering, and PDF export. Your documents remain private and accessible offline.
- Markdown viewing with GFM support
- Mermaid diagram rendering
- Syntax highlighting for 180+ languages
- LaTeX math formula support
- Interactive JSON viewer
- PDF export
- Offline functionality
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MDViewer — Fast Markdown Viewer for iPhone & iPad Open Markdown (.md), Mermaid and JSON files instantly with a fast, native iOS app. MDViewer is a lightweight Markdown Viewer and Markdown Reader designed for developers, technical writers, students and anyone working with Markdown documents on the go. Preview Markdown files with GitHub Flavored Markdown support, render Mermaid diagrams, view JSON files, and export to PDF — all from your iPhone or iPad. ------ KEY FEATURES ------ Markdown Viewer & Reader • Open and preview Markdown (.md) files instantly • Full GitHub Flavored Markdown (GFM) support • Tables, task lists, code blocks, images, links and more • Fast native rendering optimized for iOS Syntax Highlighting • 180+ programming languages with automatic detection • Clean, readable code blocks with color themes Mermaid Diagrams • Render Mermaid diagrams inline: flowcharts, sequence diagrams, Gantt charts and more • Tap to zoom and explore complex diagrams • Full Mermaid.js support Math Formulas (KaTeX) • Render LaTeX math formulas with KaTeX • Inline and display math support • Perfect for academic and scientific documents JSON Viewer • Interactive collapsible JSON tree view • Syntax highlighted JSON with formatting • Expand and collapse nested objects and arrays Additional Features • PDF export — share documents as beautifully formatted PDFs • Table of Contents — navigate long documents easily • Find in document — search text with match highlighting • YAML and plain text viewing • Dark and Light mode support • Works offline — no internet connection required • Universal app — optimized for iPhone and iPad ------ WHO IS IT FOR ------ • Developers previewing README files, documentation and code notes • Technical writers reviewing Markdown documents on the go • Students reading LaTeX-formatted notes and papers • Anyone who needs a fast, reliable Markdown viewer on iOS MDViewer reads your files locally. No cloud, no account, no tracking. Your documents stay on your device. Download MDViewer and start viewing Markdown files on your iPhone and iPad today.
Screenshots
Verdict
The clearest difference is review sentiment: MDViewer at 100% against Prompt 3's 22%. MDViewer also leads on in-app purchases (none vs 2) and update cadence (every 3 days vs every 6 weeks). Prompt 3's advantage is chart position (#17 vs unranked) and device support (4 vs 2). On price and ads 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. Prompt 3 sells 2 in-app purchases, starting at $9.99 per year. MDViewer asks for nothing beyond the download.
Prompt 3 ships an update every 6 weeks, MDViewer every 3 days. The most recent releases landed on November 3, 2026 and October 31, 2026 respectively.
| Parameter | Prompt 3 | MDViewer |
|---|---|---|
| Price | Free | Free |
| Rating | 4.3 (379 ratings) — better | — |
| Positive reviews | 21.7% of reviews | 100.0% of reviews — better |
| Number of ratings | 379 — better | — |
| Update frequency | Every 6 weeks | Every 3 days — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Paid | Free — better |
| Best chart rank | #17 — better | — |
| Devices | iPhone, iPad, Mac, Vision Pro — better | iPhone, iPad |
| Requires iOS | 26.0 | 16.0 — better |
| Further details — not scored | ||
| Size | 46 MB | 8 MB |
| Age rating | 4+ | 4+ |
| Developer | Panic, Inc. | Crocopliers |
Customer experience
Prompt 3
MDViewer
Bugs and requests
Prompt 3
Reported bugs
5 issues- Server list randomly disappears with Panic Sync
- Crashes when connected to external monitor
- Black screen issues with custom font configurations
- Sync issues causing data loss
- Vertical display sync issues
Requested features
8 requests- Shortcuts support on macOS
- Ability to click and select within commands
- Local shell option
- Run clips on server connection
- Export/backup clips
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- Alt/Meta key support for Emacs
- iCloud sync option
- Sign in with Apple for Panic Sync
MDViewer
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Prompt 3
- Prompt 3 iOS + Mac (Annual)7 Days trial$9.991 Year
- Prompt 3 One Time$49.99
MDViewer
No in-app purchases









