Comparison

GenerateERD vs SQQuantum

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

Head to head
About

GenerateERD

Features
Read full description

ERD Generator creates your whole business ideas into charts and diagram with all entities and relational system between different tables to have a ERD within minutes, you can save deploy and even share with your team partners.

About

SQQuantum

Features
Read full description

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.

Screenshots

GenerateERD4 screens
SQQuantum4 screens

Verdict

The call

The clearest difference is iOS requirement: GenerateERD at 17.0 against SQQuantum's 26.2. On price, 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Scorecard1 real difference · 5 level
GenerateERD versus SQQuantum: the parameters behind the verdict, then further details
ParameterGenerateERDSQQuantum
PriceFreeFree
Update frequency—Every 2 days
AdsNoNo
In-app purchasesNoNo
DevicesiPhone, iPadiPhone, iPad
Requires iOS17.0 — better26.2
Further details — not scored
Size1 MB3 MB
Age rating4+4+
DeveloperNavjyotsingh MultaniMenelaos Malaxianakis

In-app purchases

None

GenerateERD

No in-app purchases

None

SQQuantum

No in-app purchases

Questions

Is GenerateERD free?
GenerateERD is free to download, with no in-app purchases.
Is SQQuantum free?
SQQuantum is free to download, with no in-app purchases.
Do GenerateERD or SQQuantum have ads?
Neither GenerateERD nor SQQuantum shows ads.

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