Comparison

Space DOT vs ArkROI

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

Head to head
About

Space DOT

Features
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Space DOT 3.0 Features: - Templates for both DOT and Mermaid (Basic templates included. Additional templates can be purchased as in-app purchases.) - Code persistence: Switching between the code editor and the code generator will no longer wipe out your written code. - Layout adjustments: You can now choose for the code editor to appear on the top or bottom (iPhone & iPad), left or right (iPad only), full screen, or to be hidden. - You no longer have to generate code before tapping the render button. You can now simply tap the render button and it will first generate your code automatically. - The code generator tool now features a more compact layout, making it easier to enter information for multiple nodes. - Space DOT now outputs larger image files. Unleash the Power of Graphviz and Mermaid on Your iPhone and iPad. Space DOT version 3 transforms your mobile device into a powerful, professional-grade environment for creating and visualizing directed and undirected graphs using the industry-standard DOT and Mermaid languages. Perfect for engineers, data scientists, architects, and students, Space DOT is the ultimate tool for turning code into clear, elegant diagrams, all powered by an offline, high-performance WebAssembly engine. Offline Code Editor & Real-Time Preview Pure graphing Power: Write or paste your DOT or Mermaid language code in a distraction-free text editor. Instant Visualization: See your graph render in real-time. Hit "Render" to instantly generate high-quality SVG/PNG diagrams. High-Fidelity Rendering: Powered by an embedded, offline rendering engine engine, ensuring professional-grade layouts and accuracy. Interactive & Intelligent Graph Analysis Tap-to-Zoom: Tap any node in the rendered graph to instantly "zoom" into a neighborhood view, highlighting only its immediate neighbors and their connecting edges. This critical feature allows for fast, focused analysis of complex structures without re-rendering the entire graph. Fluid Gestures: Enjoy native iOS support for pinch-to-zoom and pan gestures on the graph preview. Automatic background saving ensures your DOT and Mermaid source files are always up to date. Import/Export: Easily import existing .dot or .gv files from the iOS file system. Share Anywhere: Export your finished graphs as crisp SVG or high-resolution PNG files directly to your preferred sharing service. Reference Dictionaries: Built-in, responsive, searchable libraries of DOT and Mermaid syntax, automatically switching, depending on which graphing language is selected. Code Generator Mode: Switch from the code editor to a user-friendly, form-based interface for DOT. Create nodes, edges, and attributes without writing a single line of codeβ€”Space DOT generates the DOT source for you. If you're not familiar with nodes and edges, you can now choose from a selection of templates for a variety of different graphing needs! Write the code. See the system. Whether you're mapping out network topology, sketching a system architecture, or studying algorithms, Space DOT provides the speed, reliability, and features you need to master graph visualization on the go.

About

ArkROI

Features
Read full description

ArkROI is a practical decision-support tool for architectural studios and design teams to evaluate whether to participate in design competitions. Instead of relying on intuition alone, ArkROI helps you explore cost, effort, and risk trade-offs before committing time and resources. By making assumptions explicit, the app supports clearer internal discussions and more informed decisions about speculative work. It is designed for teams who want a simple, structured way to reflect on potential outcomes without complex workflows or unnecessary features. Key features: β€’ Competition Cost Inputs – Account for fees, team time, and internal costs β€’ Outcome Scenarios – Explore potential fees and effort against different assumptions β€’ Risk Indicators – Visualise relative risk levels based on your inputs β€’ Flexible Parameters – Adjust multipliers and factors to match your studio’s reality β€’ Focused Interface – Clear, minimal UI built for quick evaluation ArkROI is built to support clarity and alignment within teams. No guarantees. No prescriptions. Just a structured way to assess trade-offs before deciding. Disclaimer All calculations and indicators provided in this app are illustrative estimates based on user-provided inputs and common planning assumptions. ArkROI does not provide financial, legal, or business advice and does not guarantee any outcomes. NORDFY is not liable for decisions or results arising from the use of this tool.

Screenshots

Space DOT4 screens
ArkROI4 screens

Verdict

The call

The clearest difference is in-app purchases: ArkROI at none against Space DOT's 6. ArkROI also leads on ads (none vs shown). On price, device support and iOS requirement there is nothing between them.

Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS

CostPrice Β· In-app purchases Β· Ads Β· Monetization

Both are free to download. Space DOT sells 6 one-off in-app purchases. ArkROI asks for nothing beyond the download.

Scorecard2 real differences Β· 4 level
Space DOT versus ArkROI: the parameters behind the verdict, then further details
ParameterSpace DOTArkROI
PriceFreeFree
Update frequencyEvery 9 daysβ€”
AdsYesNo β€” better
In-app purchasesYesNo β€” better
DevicesiPhone, iPadiPhone, iPod
Requires iOS16.215.1 β€” better
Further details β€” not scored
Size16 MB38 MB
Age rating4+4+
DeveloperSpace Japan StudiosNORDFY ApS

In-app purchases

6 purchases

Space DOT

One-time6
  • Remove Ads$0.99
  • Technology Templates (Space DOT)$1.99
  • Creativity Templates (Space DOT)$1.99
Show 3 more
  • Business Templates (Space DOT)$1.99
  • Duo-Pack$2.99
  • Professional Suite (Space DOT)$2.99
None

ArkROI

No in-app purchases

Questions

Is Space DOT free?
Space DOT is free to download, with in-app purchases available.
Is ArkROI free?
ArkROI is free to download, with no in-app purchases.
Do Space DOT or ArkROI have ads?
Space DOT shows ads; ArkROI does not.

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