Prompt 3 vs MarkChart
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/
MarkChart
This app allows you to easily create and preview diagrams using a Markdown-inspired text syntax. It offers templates for various diagram types and supports automatic updates when used with external editors. Export your creations to common image formats.
- Mermaid diagram editing
- Real-time preview
- Built-in templates
- Automatic updates
- Export to PDF, PNG, SVG
- Syntax highlighting
- Dark Mode support
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Create beautiful Mermaid diagrams at the speed of thought. MarkChart gives you a focused editor, live preview, visual canvas, built-in templates, and polished exports in a native iPhone and iPad app. Mermaid is a Markdown-inspired syntax for defining diagrams with text. Use MarkChart to create flowcharts, sequence diagrams, state diagrams, class diagrams, entity relationship diagrams, Gantt charts, timelines, mind maps, Venn diagrams, pie charts, requirement diagrams, Git graphs, user journeys, and more. Start with a template, edit the Mermaid source with syntax highlighting, refine your diagram visually on the interactive canvas, then share it as PDF, PNG, or SVG. CREATE BEAUTIFUL DIAGRAMS Turn Mermaid text into polished diagrams in a focused iPhone and iPad app. EDIT MERMAID DIAGRAMS Create and edit your Mermaid diagrams directly in MarkChart. THEMES AND SYNTAX HIGHLIGHTING Choose polished themes and understand your diagram source with syntax highlighting. VISUAL EDITING Edit diagrams visually with the interactive canvas. TEMPLATES Instantly create sequence diagrams, state diagrams, flowcharts and more. DIAGRAM TYPES Create flowcharts, sequence diagrams, state diagrams, Venn diagrams, mind maps, timelines, Gantt charts, Git graphs, class diagrams, entity relationship diagrams, user journeys, pie charts, Sankey diagrams, XY charts, and more. QUICK LOOK Preview your .mmd and .mermaid files right from the Files app. EXPORT Easily export your diagrams to PDF, PNG, and SVG formats. SHORTCUTS Create automations with the Shortcuts app. FITS RIGHT AT HOME MarkChart is optimized for iOS and iPadOS, with Dark Mode support. MARKCHART PRO MarkChart Pro is an optional one-time universal purchase for iOS, iPadOS, and macOS. Privacy Policy: https://markchart.app/privacypolicy/ Terms of use: https://markchart.app/terms/ If you have any questions or ideas, please reach out at support@markchart.app
Screenshots
Verdict
The clearest difference is review sentiment: MarkChart at 73% against Prompt 3's 22%. MarkChart also leads on monetization model (free with in-app purchases vs paid) and iOS requirement (18.2 vs 26.0). Prompt 3's advantage is rating (4.3 vs 4.0) and ratings volume (376 vs 14). On price, update cadence, ads and in-app purchases 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 and MarkChart sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
Prompt 3 holds the better App Store score, 4.3 against 4.0. That said, the two scores are not equally well evidenced: Prompt 3 has 376 ratings behind it against 14, so its average is the more settled of the two. Written reviews complicate that: 22% of Prompt 3's written reviews are positive against 73% of MarkChart's, so the app with the better star average is not the one people write more warmly about.
Prompt 3 ships an update every 6 weeks, MarkChart every 3 weeks. Both last shipped on October 30, 2026.
| Parameter | Prompt 3 | MarkChart |
|---|---|---|
| Price | Free | Free |
| Rating | 4.3 (376 ratings) — better | 4.0 (14 ratings) |
| Positive reviews | 21.7% of reviews | 72.7% of reviews — better |
| Number of ratings | 376 — better | 14 |
| Update frequency | Every 6 weeks | Every 3 weeks — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Paid | Free with in-app purchases — better |
| Best chart rank | #17 — better | #144 |
| Devices | iPhone, iPad, Mac, Vision Pro — better | iPhone, iPad, Mac |
| Requires iOS | 26.0 | 18.2 — better |
| Further details — not scored | ||
| Size | 46 MB | 56 MB |
| Age rating | 4+ | 4+ |
| Developer | Panic, Inc. | Alexandre Colucci |
Customer experience
Prompt 3
MarkChart
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
MarkChart
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
MarkChart
- MarkChart Pro$12.99









