Comparison

Echo vs Space DOT

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

Head to head
About

Echo

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Echo is your AI sidekick designed to think and act just like you. Train your echo to become an extension of yourself. With Echo, your unique personality and preferences shape the experience and output. Features: β€’ Teach your echo to think like you through audio interviews, creating your truly personalized AI. β€’ Export your echo to make ChatGPT and Claude think like you. β€’ Article Summaries: Save time with quick, clear summaries of articles tailored to what matters most to you. Confirm your principles or open your mind. β€’ Podcasts too: Let your echo transcribe your favorite podcasts and deliver concise, insightful summaries with audio highlights from the original. Create a digital reflection of yourself and unlock the potential of truly personalized AI. Note from Kevin, the developer: "PS This description was written by my own echo :-)" ----------- Echo is free to download and use. But we do also offer an optional subscription package. We offer monthly subscriptions with varying discounts. The prices may vary per country and are subject to change without notice. Prices are clearly displayed in the app. * Payment will be charged to your iTunes account at confirmation of purchase. * Your subscription will automatically renew itself, unless auto-renewal is turned off at least 24 hours before the end of the current period. * Your account will be charged for renewal within 24 hours before the end of the current period. * You can manage your subscriptions and turn off auto-renewal by going to your Account Settings in the iTunes Store. * If offered, if you choose to use our free trial, any unused portion of the free trial period will be forfeited when you purchase a subscription to that publication, where applicable. * If you don’t choose to purchase Echo Pro, you can simply continue using and enjoying Echo for free. Your personal data is securely stored on Echo - be sure to read our privacy policy and terms and conditions: https://echo.wtf/privacy https://echo.wtf/terms

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.

Screenshots

Echo4 screens
Space DOT4 screens

Verdict

The call

The clearest difference is ads: Echo at none against Space DOT's shown. Space DOT's advantage is update cadence (every 9 days vs monthly) and iOS requirement (16.2 vs 18.0). On price, in-app purchases and device support 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. Echo sells 1 in-app purchase, starting at $19.99 per month and Space DOT sells 6 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Echo ships an update monthly, Space DOT every 9 days. The most recent releases landed on October 5, 2026 and September 29, 2026 respectively.

Scorecard3 real differences Β· 3 level
Echo versus Space DOT: the parameters behind the verdict, then further details
ParameterEchoSpace DOT
PriceFreeFree
Update frequencyMonthlyEvery 9 days β€” better
AdsNo β€” betterYes
In-app purchasesYesYes
DevicesiPhoneiPhone, iPad β€” better
Requires iOS18.016.2 β€” better
Further details β€” not scored
Size73 MB16 MB
Age rating4+4+
DeveloperGomeo Inc.Space Japan Studios

In-app purchases

1 purchases

Echo

Subscriptions1
  • Pro$19.991 Month
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

Questions

Is Echo free?
Echo is free to download, with in-app purchases available.
Is Space DOT free?
Space DOT is free to download, with in-app purchases available.
Do Echo or Space DOT have ads?
Space DOT shows ads; Echo does not.
Which is updated more often, Echo or Space DOT?
Echo ships an update monthly, and Space DOT every 9 days. Most recently, Echo was updated on October 5, 2026 and Space DOT on September 29, 2026.

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