PlanStudio vs Constellation
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
PlanStudio
Easily create spatially accurate evacuation signs and diagrams directly from your tablet. Mark up building plans with pre-configured icons and drafting tools, then publish finished signs with a single press. Compliant with Australian legislation.
- Spatially accurate plans with geotagging
- 100+ pre-configured icons for safety
- Compliant with Australian legislation
- Secure cloud storage
- Multiple sign templates
- Full suite of drafting tools
- Push-button publishing of signs
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Locatrix has developed technology to give certifiers, fire engineers and other competent persons a way to immediately create spatially accurate evacuation signs/diagrams. PlanStudio provides a simple and easy way to mark-up a building or structure and create spatially accurate evacuation signs/diagrams with the press of a button. A mobile app for drafting, editing, viewing and adding mark-ups to CAD drawings directly from your tablet. Onsite engineers can increase their productivity and revenue by connecting their work to cloud storage and directly create evacuation signs and diagrams. Traditional drafting software is complex and difficult to use, a manual mark-up often requiring transferring onto a sign template by a third party. PlanStudio is easy enough for a novice with robust, powerful features that will please any expert. Key features include: • Geotagging for spatially accurate plans • 100+ pre-configured icons for WHS and Emergency Management • Compliant with all relevant Australian legislation and standards • Secure online cloud repository • Multiple sign templates • Full suite of drafting tools compatible with iOS and Windows • All legislative updates for the app • Push button publishing of finished Evacuation • Signs via Locatrix
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 — faster than scrolling a list, and calmer than wrestling a web of tabs. What it understands • Plain Markdown files and folders • Wikilinks ([[like this]]) and regular links • Backlinks and "neighbors" of a note • Tags (#tag) and (when present) frontmatter metadata • File timestamps for "recent notes" views What you can do with it • See clusters and themes at a glance (by folder and tag) • Follow paths between notes and spot the "bridge" notes that connect topics • Surface orphans and dead ends, then decide what to link next • Start from any note and explore outward, one connection at a time • Keep your context: you're moving through the space, not hopping between screens Filters & lenses to cut noise • Filter by folder or tag • Show only high-degree hubs (or only low-degree, overlooked notes) • Highlight orphans • Focus on recent work • Reduce density for large vaults so the scene stays readable Designed for iPhone and iPad • Calm, cinematic 3D rendering with depth cues and subtle atmosphere • Tap a star to open its note; drag to orbit and pinch to zoom • Light and dark appearance, following your system setting • Adjustable density and progressive loading for medium-to-large vaults A clean reading experience • Open any note in a panel with crisp typography: beside the graph on iPad, as a sheet on iPhone • See outgoing links and tags alongside the content • Follow links from note to note without losing your place in the constellation Fast setup, no accounts • Point Constellation at a folder, index, and explore • Rebuild the index whenever your vault changes • 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 — 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.
Screenshots
Verdict
The clearest difference is in-app purchases: PlanStudio at none against Constellation's 1. PlanStudio also leads on iOS requirement (16.0 vs 18.0). Constellation's advantage is device support (4 vs 1). On price, update cadence and ads 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
Both are free to download. Constellation sells 1 one-off in-app purchase. PlanStudio asks for nothing beyond the download.
PlanStudio ships an update every 6 weeks, Constellation every 3 months. The most recent releases landed on October 15, 2026 and October 24, 2026 respectively.
| Parameter | PlanStudio | Constellation |
|---|---|---|
| Price | Free | Free |
| Rating | 3.0 (2 ratings) — better | — |
| Positive reviews | 0.0% of reviews | — |
| Number of ratings | 2 — better | — |
| Update frequency | Every 6 weeks — better | Every 3 months |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Ad-supported | — |
| Devices | iPad | iPhone, iPad, Mac, Vision Pro — better |
| Requires iOS | 16.0 — better | 18.0 |
| Further details — not scored | ||
| Size | 159 MB | 19 MB |
| Age rating | 4+ | 4+ |
| Developer | Concept Safety Systems PTY LTD | Drobinin Limited |
In-app purchases
PlanStudio
No in-app purchases
Constellation
- Personal Wiki Pro$39.99









