Constellation vs Complicator
Price, ratings, monetisation and update history for both apps, side by side — 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 — 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.
Complicator
Transform any REST API into a glanceable watch face complication. Display financial data, weather, server stats, and more directly on your wrist. Configure easily on your iPhone and view updates automatically on your Apple Watch.
- Fetch data from any JSON API
- Multiple data format options
- Customizable labels and font sizes
- Support for all complication styles
- Configure on iPhone, view on Apple Watch
- Add multiple data points
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Turn any REST API into a watch face complication. Track what matters to you at a glance. Features: • Fetch data from any JSON API • Multiple format options: currency, percentage, numbers, compact notation • Customizable labels and font sizes • Support for all complication styles: circular, rectangular, inline, and corner • Configure on iPhone, view on Apple Watch • Add multiple data points for different complications Perfect for tracking: • Financial asset prices • Weather data • Server stats • Smart home sensors • Fitness metrics • Any public API Simply enter a URL, specify the JSON path to your data, and Complicator does the rest. Your data refreshes automatically, keeping you informed without opening an app. Privacy: 100% on-device. No servers, no accounts, no data collection. Your configurations never leave your devices.
Screenshots
Verdict
The clearest difference is in-app purchases: Complicator at none against Constellation's 1. Complicator also leads on update cadence (weekly vs every 3 months). Constellation's advantage is device support (4 vs 2). On price, ads and iOS requirement 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. Complicator asks for nothing beyond the download.
Constellation ships an update every 3 months, Complicator weekly. The most recent releases landed on October 17, 2026 and October 23, 2026 respectively.
| Parameter | Constellation | Complicator |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (2 ratings) — better |
| Number of ratings | — | 2 — better |
| Update frequency | Every 3 months | Weekly — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | — | Free |
| Devices | iPhone, iPad, Mac, Vision Pro — better | iPhone, Apple Watch |
| Requires iOS | 18.0 | 17.0 — better |
| Further details — not scored | ||
| Size | 19 MB | 4 MB |
| Age rating | 4+ | 4+ |
| Developer | Drobinin Limited | Tinker Labs AB |
In-app purchases
Constellation
- Local Knowledge Pro$39.99
Complicator
No in-app purchases









