VisuStruct vs Pi Relay
Price, ratings, monetisation and update history for both apps, side by side โ with what reviewers say about each.
VisuStruct
Visually create algorithms using drag-and-drop structured diagrams. Watch your logic execute step-by-step with an integrated simulator, then automatically generate code. This tool focuses on programming logic before syntax, ideal for learning.
- Visual algorithm creation with drag-and-drop
- Nassi-Shneiderman diagram support
- Automatic code generation
- Step-by-step algorithm simulation
- Focus on logic before syntax
- Clean, distraction-free interface
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Think in Structures. Understand Algorithms. Write Better Code. VisuStruct makes programming logic visible. Design algorithms visually using Nassi-Shneiderman diagrams, run them step by step with the built-in simulator, and turn your structures into real code โ without getting lost in syntax. Whether you are learning programming, teaching computer science, or explaining algorithms, VisuStruct helps you focus on what really matters: understanding how a program works. Visualize. Simulate. Understand. Program. Why VisuStruct? โข Build algorithms visually with an intuitive editor โข Create Nassi-Shneiderman diagrams quickly and clearly โข Execute algorithms step by step โ like a visual debugger โข See exactly how your algorithm flows โข Generate code automatically โข Learn programming logic before worrying about syntax โข Perfect for students, teachers, and programming beginners From your first algorithm to more complex control structures, VisuStruct bridges the gap between **thinking about a solution and writing code**. Stop guessing what your program does. See it.
Pi Relay
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Pi Relay is a companion iPhone app for the Pi coding agent. It lets you connect securely to your own Pi remote-control server, browse active projects and sessions, and continue conversations from your phone. Pairing is simple: install the Pi remote-control extension on the machine running Pi, open the pairing QR code, and scan it with Pi Relay. Once paired, you can switch between remotes, view project sessions, read conversation history, send new prompts, abort running work, and request context compaction with /compact. Pi Relay is designed for users who already run Pi on their own computer or development environment and want a lightweight mobile companion for monitoring and continuing work away from the desktop. Key features: - QR-code pairing with your Pi remote-control server - Remote list with quick switching and unpairing - Project and session browsing - Conversation view with selectable and copyable messages - Runtime status and context usage display - Prompt sending, abort support, and /compact support - Live session updates while the app is active Pi Relay requires a running Pi remote-control extension/server. The extension is available at: https://github.com/zerray/pi-remote-control
Screenshots
Verdict
The clearest difference is update cadence: VisuStruct at every 4 days against Pi Relay's fortnightly. On price, ads, in-app purchases and device support there is nothing between them.
Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
VisuStruct ships an update every 4 days, Pi Relay fortnightly. Both last shipped on October 25, 2026.
| Parameter | VisuStruct | Pi Relay |
|---|---|---|
| Price | Free | Free |
| Positive reviews | 33.3% of reviews | โ |
| Update frequency | Every 4 days โ better | Fortnightly |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | โ |
| Devices | iPhone, iPad โ better | iPhone |
| Requires iOS | 17.0 | 17.0 |
| Further details โ not scored | ||
| Size | 3 MB | 2 MB |
| Age rating | 4+ | 12+ |
| Developer | Holger Sebastiao | Zerui Zhou |
In-app purchases
VisuStruct
No in-app purchases
Pi Relay
No in-app purchases








