Assembly Lab vs Slint Viewer
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!
Slint Viewer
This developer tool allows you to preview Slint user interfaces directly on your iPhone or iPad. It connects to your code editor over a local network, displaying your .slint designs live as you make changes. Some programming experience is recommended for optimal use.
- Live UI preview on iOS
- Connects to code editor
- Real-time design updates
- Supports Slint toolkit
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Preview Slint user interfaces on your iPhone or iPad with just your computer and this app. Slint Viewer is a developer tool that connects to your code editor over the local network and shows your .slint designs live on the device as you save. Slint (slint.dev) is an open-source toolkit for building native user interfaces in Rust, C++, JavaScript, and Python. Note: this app is intended for developers using Slint; some programming experience is recommended.
Screenshots
Verdict
The clearest difference is price: Slint Viewer at Free against Assembly Lab's $1.99. Assembly Lab's advantage is chart position (#200 vs unranked). On review sentiment, 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
Slint Viewer 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, Slint Viewer every 6 weeks. The most recent releases landed on November 9, 2026 and November 5, 2026 respectively.
| Parameter | Assembly Lab | Slint Viewer |
|---|---|---|
| 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 6 weeks |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Free — better |
| Best chart rank | #200 — better | — |
| Devices | iPhone, iPad, Mac — better | iPhone, iPad |
| Requires iOS | 17.0 | 16.6 — better |
| Further details — not scored | ||
| Size | 14 MB | 49 MB |
| Age rating | 4+ | 4+ |
| Developer | Chongqing Hyperits Network Technology Co., Ltd. | SixtyFPS GmbH |
Customer experience
Assembly Lab
Slint Viewer
In-app purchases
Assembly Lab
No in-app purchases
Slint Viewer
No in-app purchases
Questions
Is Assembly Lab free?
Is Slint Viewer free?
Do Assembly Lab or Slint Viewer have ads?
Which is updated more often, Assembly Lab or Slint Viewer?
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