Comparison

SQQuantum vs QuickTerminal

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

Head to head
About

SQQuantum

Features
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SQQuantum Studio: The Universe in Your Hands Welcome to SQQuantum by Sapiens Qualia—a breathtaking leap in mobile scientific computing. SQQuantum bridges the gap between high-end desktop tensor analysis and accessible mobile education, putting a fully functional, lightning-fast quantum circuit simulator directly onto your iPhone and iPad. Whether you are a university physics student learning the fundamental mechanics of entanglement, a software engineer transitioning into quantum logic, or a researcher testing state-vector mathematics on the go, SQQuantum provides a flawless, professional-grade Integrated Development Environment (IDE) optimized specifically for the Apple ecosystem. OPTIMIZED FOR APPLE SILICON SQQuantum is an engineering masterpiece. Under the hood, it is powered by a custom-written, native C++ state-vector engine utilizing the heavy-duty Eigen mathematical framework. By bridging Swift directly to C++ and compiling natively for Apple’s A-Series and M-Series processors, the app achieves zero-latency, real-time matrix multiplications entirely offline. It natively projects complex quantum physics calculations onto a beautifully fluid, hardware-accelerated SwiftUI canvas without dropping a single frame. POWERFUL FUNCTIONALITY • Dynamic Circuit Canvas: Build complex quantum circuits using multiple qubits. Apply fundamental quantum logic gates including Hadamard (H), Pauli (X, Y, Z), Parametric Phase Shifts (Rx), Controlled-NOT (CX), and Measurement operations. • Interactive 3D Bloch Sphere: Visualize the invisible. Utilizing Apple’s native SceneKit framework, our 3D projector allows you to touch, drag, and rotate the Bloch sphere to intuitively understand qubit vector phases and superpositions in real-time. • Live Probability Distributions: As you build your circuit or drag parameters, the simulator instantly calculates the wave function and renders the exact probability distribution of your quantum states in a vibrant, responsive UI. • Hardware Noise Simulation (NISQ): Experience the reality of modern hardware. Use the dynamic noise slider to inject probabilistic decoherence and environmental noise into your gates, simulating how physical quantum computers actually behave. • Live OpenQASM 3.0 Generation: SQQuantum acts as a true developer tool. As you visually construct your circuit, the app simultaneously compiles industry-standard OpenQASM 3.0 code in a dedicated terminal pane. Copy it with one tap to export and run your exact circuit on real IBM or AWS quantum mainframes. • Instant Entanglement: Instantly load complex quantum phenomena like the Bell State (Quantum Entanglement) and GHZ State with a single tap. PRO iPadOS ARCHITECTURE SQQuantum intelligently adapts to your hardware. On the iPhone, it provides a sleek, highly readable, vertically scrollable interface. On the iPad, the UI transforms into a gorgeous, split-pane professional IDE—featuring a sprawling mathematical workspace on the left, a dedicated hardware inspector on the right, and a full-width code terminal pinned to the bottom. 100% PRIVATE & OFFLINE Science requires focus, not tracking. SQQuantum is 100% offline. It requires zero account sign-ups, utilizes zero cloud processing, contains no advertisements, and collects absolutely zero user data. Your algorithms belong to you. Step into the mathematical fabric of the universe. Download SQQuantum Studio today and start building the future.

About

QuickTerminal

Features
Read full description

QuickTerminal is a professional terminal emulator and SSH client designed for iOS and macOS. It combines local shell access, remote SSH sessions, SFTP file browsing, and AI-powered command assistance in one workspace. TERMINAL: - Full xterm-256color terminal emulation - Local shell support (bash, zsh, fish, sh, ksh) - Multiple concurrent sessions with tabs - Horizontal and vertical terminal splitting - Customizable fonts: Fira Code, JetBrains Mono, Source Code Pro, Cascadia Code - Adjustable font size (8–32px) and cursor styles (block, underline, bar) - Scrollback buffer up to 50,000 lines SSH & SFTP: - SSH remote sessions with saved host profiles - Key-based and password authentication - SSH jump host / bastion support - SFTP file browser for remote directories - Connection pooling and session reuse - Secure credential storage AI ASSISTANT (Pro): - Claude and Gemini AI integration - Natural language command suggestions and explanations - Command safety analysis before execution - Context-aware help with working directory and git status COMMAND TOOLS: - Command snippets: save, categorize, search, and import/export as JSON - Command history with search, favorites, and directory tracking (500 entries) - Command palette for unified search across actions and snippets SECURITY POLICIES: - Command approval modes: None, Risky Only, Always - Risky command detection (rm -rf, mkfs, dd, shutdown, etc.) - Directory-based sandboxing with allowed paths - Configurable safety levels WORKSPACE: - Dockable floating panels - Integrated file browser - Resizable sidebar with icon-only mode - Grid and tabbed layout modes CUSTOMIZATION: - 20+ theme colors with dark/light mode - Customizable keyboard shortcuts - Responsive layout for mobile, tablet, and desktop ADVANCED CONNECTIVITY: - Mosh (Mobile Shell) for resilient connections over flaky networks - Port forwarding with local and remote SSH tunnels - GCP IAP tunneling for Google Cloud SSH access QuickTerminal Pro unlocks: - Unlimited AI agent execution - Ad-free experience - Advanced security policies - Priority support Terms of Use: https://kakitiro.com/quickapps/quickterminal/terms/

Screenshots

SQQuantum4 screens
QuickTerminal4 screens

Verdict

The call

The clearest difference is in-app purchases: SQQuantum at none against QuickTerminal's 2. SQQuantum also leads on ads (none vs shown) and update cadence (every 2 days vs every 6 weeks). QuickTerminal's advantage is device support (4 vs 2) and iOS requirement (13.0 vs 26.2). On price 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

Both are free to download. QuickTerminal sells 2 in-app purchases, starting at $1.99 per year. SQQuantum asks for nothing beyond the download.

UpkeepUpdate frequency

SQQuantum ships an update every 2 days, QuickTerminal every 6 weeks. The most recent releases landed on September 26, 2026 and August 31, 2026 respectively.

Scorecard5 real differences · 1 level
SQQuantum versus QuickTerminal: the parameters behind the verdict, then further details
ParameterSQQuantumQuickTerminal
PriceFreeFree
Update frequencyEvery 2 days — betterEvery 6 weeks
AdsNo — betterYes
In-app purchasesNo — betterYes
DevicesiPhone, iPadiPhone, iPad, iPod, Mac — better
Requires iOS26.213.0 — better
Further details — not scored
Size3 MB57 MB
Age rating4+4+
DeveloperMenelaos MalaxianakisKAZUHIRO KAKIMOTO

In-app purchases

None

SQQuantum

No in-app purchases

2 purchases

QuickTerminal

Subscriptions1
  • Pro - Annual$1.991 Year
One-time1
  • Pro - Lifetime$6.99

Questions

Is SQQuantum free?
SQQuantum is free to download, with no in-app purchases.
Is QuickTerminal free?
QuickTerminal is free to download, with in-app purchases available.
Do SQQuantum or QuickTerminal have ads?
QuickTerminal shows ads; SQQuantum does not.
Which is updated more often, SQQuantum or QuickTerminal?
SQQuantum ships an update every 2 days, and QuickTerminal every 6 weeks. Most recently, SQQuantum was updated on September 26, 2026 and QuickTerminal on August 31, 2026.

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