Comparison

RADii Viewer vs ArcaNotes

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

Head to head
About

RADii Viewer

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RADii Viewer is a real time AR/VR viewer for the RADii plugin (radii.info) for Rhino3D/Grasshopper3D (rhino3d.com). RADii is an open design and collaboration platform aimed at designers and architects. RADii Viewer enables you to subscribe and view content published from Rhino3D in real-time as it is being created, anywhere in the world. Content can be retrieved from a cloud server on demand as well as saved locally for future offline use. Subscribable content so far includes meshes, point clouds, curves/polylines, materials, messages, control and other users. You control the scale of the received content, general properties as well as the world it inhabits. The focus of the platform is direct project communication and collaboration for professionals and amateurs.

About

ArcaNotes

This app is designed for rapid note-taking with a focus on single ideas per note. It uses an AI-enhanced approach to help organize and retrieve information naturally through a feed-like interface. The app also encourages sharing knowledge by making it easy to follow and contribute to shared feeds.

Highlights
  • Rapid micro-note creation
  • AI-suggested topics
  • Natural feed-based review
  • Question-based note retrieval
  • Effortless knowledge sharing
  • Topic-based note organization
Features
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ArcaNotes is a different kind of note-taking app. It's designed for speed of entry ("micro-notes"), makes reviewing feel natural, streamlines sharing, and uses AI to help you organize and retrieve. ArcaNotes has a small mission and a big mission. The small mission is to make a great note-taking app that is fast, flexible, and aligned with how many of us work today. The bigger mission is for ArcaNotes to become your second brain, the place where you store all of your information. By making it effortless to retrieve, share, and review, your knowledge will be unlocked for you and others. How is ArcaNotes different? 1. It’s designed for rapid note-taking * Rather than taking long notes that cover several disparate topics, try using ArcaNotes to take “micro-notes” - short notes, each about one idea. * As soon as you have something you want to jot down, just enter it, and worry about organizing it (ie, assigning a topic) later. * The intention is for there to be nothing between your thought and the act of storing it - no friction. Capturing information is as simple as texting yourself. 2. Retrieval and review feel natural * Notes are displayed like a feed, similar to messaging apps. For many people, scrolling a feed is a more natural way to review and retrieve than clicking through nested folders. * Notes can be assigned one or more topics, and notes under that topic can be viewed, much like a channel. 3. It encourages you to share your knowledge * So much knowledge is trapped in our heads and apps. Often, we don’t share it because of the extra work required. * ArcaNotes aims to change that by making sharing and following feeds of other users’ notes easy. The intent is for a portion of your notes (the ones you want to share) to be opened up so others can quickly scan and review them. It’s a bit like how people routinely scan various message channels to catch up on other teams’ activities. 4. It leverages AI technology to help you be more productive * ArcaNotes suggests topics that best fit the content of your note, as you type. The goal is to help you work faster by doing some of the thinking about organizing for you. * Rather than searching by keyword, you can ask your notes a question. ArcaNotes will generate an answer based on the knowledge contained in your notes.

Screenshots

RADii Viewer4 screens
ArcaNotes4 screens

Verdict

The call

RADii Viewer and ArcaNotes are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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.

ScorecardNo meaningful differences
RADii Viewer versus ArcaNotes: the parameters behind the verdict, then further details
ParameterRADii ViewerArcaNotes
PriceFreeFree
Rating—5.0 (3 ratings) — better
Positive reviews—100.0% of reviews
Number of ratings—3 — better
Update frequencyEvery 3 months—
AdsNoNo
In-app purchasesNoNo
Monetization—Free
DevicesiPhone, iPad, iPod, Mac — betteriPhone, iPad, iPod
Requires iOS15.015.0
Further details — not scored
Size129 MB3 MB
Age rating4+4+
DeveloperThomas LeeArcaNotes, LLC

In-app purchases

None

RADii Viewer

No in-app purchases

None

ArcaNotes

No in-app purchases

Questions

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

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