Comparison

Glink 3270 vs Open Pi

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Glink 3270

This app provides robust IBM 3270 terminal emulation for accessing host systems. It offers secure communication, multiple session support, and extensive customization options for a seamless user experience on iOS devices.

Highlights
  • IBM 3270 terminal emulation
  • TN3270/Tn3270E communication
  • SSL/TLS secure communication
  • Multiple concurrent host sessions
  • Configurable toolbars and hot spots
  • Macro recording and playback
  • External keyboard support
Features
Read full description

Glink 3270 for iOS is an iOS-version of Gallagher & Robertson's best-selling terminal emulation program, Glink Professional Edition for Microsoft Windows. Glink 3270 is used to access applications running on IBM host systems. Glink 3270 emulates all IBM 3270 terminals and uses the TN3270 protocol for communication with the host systems. Glink brings you a high quality and proven emulator for your iPad, iPhone devices and Mac computers with M1/M2 chip. Glink supports GlinkProxy, a server application designed to provide persistent host connections for Glink clients where the connection from the client device is unreliable. This may be because the device enters sleep mode or goes out of Wi-Fi range. FEATURES - IBM 3270 terminal emulation, all models (basic and extended) and screen sizes - TN3270/Tn3270E communication to host, standard or extended - IPv6 (Internet Protocol version 6) support - SSL/TLS support for secure communication - Multiple concurrent host sessions - Configurable multi line toolbar with function keys and macros - Configurable hot spots for function keys, numbers, characters and URLs - Macro recording for auto-login and for assignment to toolbar - Pop-up standard keyboard with support of international characters - Tab/shift-Tab and arrow-keys supported on external Bluetooth keyboard - All major function keys available as keyboard shortcuts - Press and hold Command-key on external keyboard to see list of built-in keyboard shortcuts - Colors can be customized - Supports GlinkProxy Session Persistence Server - Multiple host configurations supported - Export and import of configurations - Supports Managed App Configuration, which allows users to configure Glink remotely through Mobile Device Management (MDM) - Optional password to access configurations - Optional auto-connect and auto-login at startup - Optional use of double-tap as Enter/Transmit - Configurable scroll-back buffer contains history of your host session - Print or e-mail host print data - Print or e-mail terminal emulation content or scroll-back buffer content - Zoom and scroll as the Safari browser - Dynamic zoom to cursor position - Blinking attribute supported - Blinking cursor supported - Two finger swipe gesture to move cursor - Tap and hold to open Mail with e-mail address on screen - Supports external Bluetooth keyboards and barcode scanners

About

Open Pi

Manage your Raspberry Pi devices remotely without cloud services. Monitor system health, control Docker, run commands, transfer files, and manage GPIO from a modern, privacy-focused interface.

Highlights
  • Real-time system monitoring
  • SSH terminal access
  • Docker container management
  • GPIO control
  • File manager
  • Wake-on-LAN Helper
  • Remote system actions
Features
Read full description

Direct, local, and private Raspberry Pi management. Open Pi lets you monitor system health, manage Docker containers, and run SSH commands on your Raspberry Pi right from your phone. No cloud servers, accounts, or subscriptions. Built for homelabs, self-hosting, IoT projects, and software development. Key Features • System Health: Real-time CPU, RAM, storage, and temperature metrics • Docker Management: View, start, stop, and restart containers • Terminal: Secure SSH command-line access over local network or VPN • File Manager: Direct file uploads and downloads • GPIO Control: Monitor and toggle pins • Auto-Discovery: Detect devices automatically on local networks • System Actions: Wake-on-LAN helper, remote reboot, and alerts Privacy • Native SSH connection with no background agents • No accounts, tracking, or telemetry • Local-first architecture with zero subscriptions • All data stays on your local network

Screenshots

Glink 32704 screens
Open Pi4 screens

Verdict

The call

The clearest difference is price: Open Pi at Free against Glink 3270's $29.99. Open Pi also leads on update cadence (weekly vs every 5 months) and ratings volume (8 vs 2). Glink 3270's advantage is rating (5.0 vs 4.4) and in-app purchases (none vs 2). On review sentiment, ads, monetization model and device support 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

CostPrice · In-app purchases · Ads · Monetization

Open Pi is free to download; Glink 3270 costs $29.99 up front. Open Pi sells 2 one-off in-app purchases. Glink 3270 asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Glink 3270 holds the better App Store score, 5.0 against 4.4. Both are backed by a comparable volume of ratings — 2 and 8 respectively. Written reviews split almost evenly too, at 100% and 100% positive.

UpkeepUpdate frequency

Glink 3270 ships an update every 5 months, Open Pi weekly. The most recent releases landed on September 15, 2026 and September 24, 2026 respectively.

Scorecard6 real differences · 4 level
Glink 3270 versus Open Pi: the parameters behind the verdict, then further details
ParameterGlink 3270Open Pi
Price$29.99Free — better
Rating5.0 (2 ratings) — better4.4 (8 ratings)
Positive reviews100.0% of reviews100.0% of reviews
Number of ratings28 — better
Update frequencyEvery 5 monthsWeekly — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationPaidPaid
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS11.0 — better18.0
Further details — not scored
Size51 MB43 MB
Age rating4+4+
DeveloperGallagher & Robertson ASArtem Svitelskyi

Customer experience

Glink 3270

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews2 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Open Pi

All ratings8 ratings
Positive75.0%
Neutral12.5%
Negative12.5%
Written reviews3 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Glink 3270

No in-app purchases

2 purchases

Open Pi

One-time2
  • Single (Lifetime)$5.99
  • Family (Lifetime)$12.99

Questions

Is Glink 3270 free?
Glink 3270 costs $29.99, with no in-app purchases.
Is Open Pi free?
Open Pi is free to download, with in-app purchases available.
Which has better reviews, Glink 3270 or Open Pi?
Glink 3270 is rated higher. Glink 3270 averages 5.0 out of 5 from 2 ratings, while Open Pi averages 4.4 from 8 ratings.
Do Glink 3270 or Open Pi have ads?
Neither Glink 3270 nor Open Pi shows ads.
Which is updated more often, Glink 3270 or Open Pi?
Glink 3270 ships an update every 5 months, and Open Pi weekly. Most recently, Glink 3270 was updated on September 15, 2026 and Open Pi on September 24, 2026.

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