Assembly Lab vs MQTee
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Assembly Lab
This app provides a powerful x86 16-bit real mode assembly language simulator and debugger for mobile devices and Mac. It offers real-time disassembly, register monitoring, memory browsing, and BIOS/DOS interrupt support for learning and practicing low-level programming.
- x86 16-bit CPU emulation
- NASM syntax assembler
- Real-time disassembly
- Breakpoint debugging
- Register and memory monitoring
- BIOS/DOS interrupt support
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AssemblyLab is a powerful x86 16-bit real mode assembly language simulator designed for iPhone, iPad, and Mac. No complex setup required — learn and practice assembly programming anywhere, anytime. 【CORE FEATURES】 • Complete x86 16-bit CPU emulation with 60+ instructions • NASM syntax assembler — write and run instantly • Real-time disassembly view to understand machine code • Full 1MB memory space, authentic real mode simulation 【POWERFUL DEBUGGING TOOLS】 • Set breakpoints and step through code • Live register monitoring (AX/BX/CX/DX/SP/BP/SI/DI) • Visual FLAGS indicator display • Memory browser with hex view and editing • Execution log to trace every instruction 【BIOS/DOS INTERRUPT SUPPORT】 • INT 10h Video Services: cursor control, character output, screen scrolling • INT 21h DOS Services: keyboard input, string output, program termination 【LEARNING-FRIENDLY】 • Built-in example programs from Hello World to algorithms • Syntax-highlighted code editor • Console output for immediate feedback • Load and run .COM files 【CROSS-PLATFORM EXPERIENCE】 • iPhone: optimized portrait layout • iPad: split-view interface for the big screen • Mac: native support with keyboard shortcuts Perfect for: - Computer Science students - Operating Systems course learners - Reverse engineering beginners - Retro computing enthusiasts - Developers curious about low-level programming AssemblyLab is your ideal companion for exploring how computers really work at the lowest level. Download now and start your assembly journey!
MQTee
A native MQTT 5 client for iOS devices that offers a visual topic tree browser, full MQTT 5.0 support, and iCloud sync for seamless connection management. It allows for multi-tab publishing with syntax highlighting and provides a real-time event log for debugging.
- Native MQTT 5 client
- Visual topic tree browser
- Full MQTT 5.0 support
- iCloud sync for connections
- Multi-tab publishing with syntax highlighting
- Real-time event log
- Apple Shortcuts & Siri integration
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MQTee is the only native MQTT 5 client for iPhone and iPad. Built in SwiftUI + Rust. No Electron, no lag, no web views. Topic Tree Browser Explore your MQTT topic hierarchy in a visual tree. Search, filter, view payloads inline, and unsubscribe directly from the tree. Color-coded subscriptions make it easy to track multiple data streams at a glance. Full MQTT 5.0 Support Connect with MQTT 3.1.1 or MQTT 5.0. Full support for shared subscriptions, user properties, no-local, retain handling, session expiry, content type, response topics, correlation data, and message expiry intervals. iCloud Sync Your connections sync seamlessly across your iPhone and iPad via iCloud. Credentials are stored securely in iCloud Keychain. Multi-Tab Publishing Open multiple publish tabs per connection. JSON syntax highlighting and payload auto-detection (JSON, XML, hex, plaintext). Real-Time Event Log Structured event log with filtering by level, category, and direction. Debug MQTT workflows in real time. Apple Shortcuts & Siri Automate your MQTT workflows with Apple Shortcuts. Publish messages and read retained values from any app, Siri, or automation. Session Persistence Save subscriptions and message history per connection. Auto-resubscribe when reconnecting. Configurable message limits for memory and disk. Every feature is free. No limits. No paywalls. No feature gating. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is price: MQTee at Free against Assembly Lab's $1.99. Assembly Lab's advantage is update cadence (monthly vs every 8 months) and chart position (#197 vs unranked). On review sentiment, ads, in-app purchases 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
MQTee is free to download; Assembly Lab costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Assembly Lab ships an update monthly, MQTee every 8 months. The most recent releases landed on October 31, 2026 and October 28, 2026 respectively.
| Parameter | Assembly Lab | MQTee |
|---|---|---|
| Price | $1.99 | Free — better |
| Rating | — | 5.0 (1 ratings) — better |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| Number of ratings | — | 1 — better |
| Update frequency | Monthly — better | Every 8 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Free — better |
| Best chart rank | #197 — better | — |
| Devices | iPhone, iPad, Mac | iPhone, iPad, Mac |
| Requires iOS | 17.0 — better | 26.0 |
| Further details — not scored | ||
| Size | 14 MB | 12 MB |
| Age rating | 4+ | 4+ |
| Developer | Chongqing Hyperits Network Technology Co., Ltd. | Felipe Lima |
Customer experience
Assembly Lab
MQTee
In-app purchases
Assembly Lab
No in-app purchases
MQTee
No in-app purchases









