Constellation vs C.A.S.E.
Price, ratings, monetisation and update history for both apps, side by side β with what reviewers say about each.
Constellation
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Constellation turns a folder of Markdown notes into a spatial "atlas" you can explore on iPhone and iPad. Select any local folder of .md files (from Files / iCloud Drive or on-device storage). Constellation parses structure and links (including [[wikilinks]]), then builds a navigable 3D constellation where ideas become places: clusters form naturally, connections become visible, and isolated notes stop hiding in plain sight. Constellation is not a note editor. It's a way to understand what you already have β faster than scrolling a list, and calmer than wrestling a web of tabs. What it understands β’ Plain Markdown files and folders β’ Wikilinks ([[like this]]) and regular links β’ Backlinks and "neighbors" of a note β’ Tags (#tag) and (when present) frontmatter metadata β’ File timestamps for "recent notes" views What you can do with it β’ See clusters and themes at a glance (by folder and tag) β’ Follow paths between notes and spot the "bridge" notes that connect topics β’ Surface orphans and dead ends, then decide what to link next β’ Start from any note and explore outward, one connection at a time β’ Keep your context: you're moving through the space, not hopping between screens Filters & lenses to cut noise β’ Filter by folder or tag β’ Show only high-degree hubs (or only low-degree, overlooked notes) β’ Highlight orphans β’ Focus on recent work β’ Reduce density for large vaults so the scene stays readable Designed for iPhone and iPad β’ Calm, cinematic 3D rendering with depth cues and subtle atmosphere β’ Tap a star to open its note; drag to orbit and pinch to zoom β’ Light and dark appearance, following your system setting β’ Adjustable density and progressive loading for medium-to-large vaults A clean reading experience β’ Open any note in a panel with crisp typography: beside the graph on iPad, as a sheet on iPhone β’ See outgoing links and tags alongside the content β’ Follow links from note to note without losing your place in the constellation Fast setup, no accounts β’ Point Constellation at a folder, index, and explore β’ Rebuild the index whenever your vault changes β’ Local caching for quicker reloads Made for people who live in Markdown Writers, researchers, developers, and anyone with a "second brain" full of links: Constellation helps you spot what's connected, what's missing, and what's worth revisiting. Offline-first and private by default Your files stay on-device. Constellation doesn't upload your vault, doesn't require an account, and doesn't modify your files β it simply indexes and visualizes them locally. Compatibility: works with Markdown vault folders from apps such as Obsidian and Logseq. Not affiliated with or endorsed by them.
C.A.S.E.
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Look back at your past: how many of your decisions were truly the result of systematic thinking? Is your current life path one you genuinely chose for yourself? Without a systematic personal framework, path dependence becomes the greatest obstacle to personal growth. Fortunately, we can change this. By recording every new insight or piece of knowledge you gain, connections and profound understanding will emerge over time. As these insights become systematized, you gain a holistic perspective on the choices right in front of youβand C.A.S.E. can significantly accelerate this process. Key Features: 3D Mind Map View: Visualize your thoughts in a new dimension. Dual-Screen Support: Operate mind maps across two screens for maximum efficiency. Integrated Productivity: Built-in Calendar and Task Management system. Outline Mode: Instantly switch between visual maps and structured outlines. High Performance: Seamlessly handle thousands of nodes without lag. Unified Node Management: Manage nodes centrally across different maps. Actionable Links: Create direct links between mind map nodes and tasks. And much more...
Screenshots
Verdict
The clearest difference is in-app purchases: C.A.S.E. at none against Constellation's 1. C.A.S.E. also leads on iOS requirement (15.0 vs 18.0). On price, ads 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
Both are free to download. Constellation sells 1 one-off in-app purchase. C.A.S.E. asks for nothing beyond the download.
| Parameter | Constellation | C.A.S.E. |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 3 months | β |
| Ads | No | No |
| In-app purchases | Yes | No β better |
| Devices | iPhone, iPad, Mac, Vision Pro β better | iPhone, iPad, iPod |
| Requires iOS | 18.0 | 15.0 β better |
| Further details β not scored | ||
| Size | 19 MB | 26 MB |
| Age rating | 4+ | 4+ |
| Developer | Drobinin Limited | Junze Ma |
In-app purchases
Constellation
- Local Knowledge Pro$39.99
C.A.S.E.
No in-app purchases









