Constellation vs Project Notebook +
Price, ratings, monetisation and update history for both apps, side by side ā with what reviewers say about each.
Constellation
Read full descriptionHide full description
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 ā 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 ā 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.
Project Notebook +
Read full descriptionHide full description
Every project deserves to be remembered. Whether you're a designer, engineer, educator, maker, photographer, or event organiser ā you always have projects in motion. But too often, ideas end up scattered across sticky notes, chat threads, voice memos, and emails. By the time you look back, the context is lost and the process is impossible to recreate. Project Notebook was built to change that. It's a structured digital notebook designed for people who make things ā giving every step, every material, and every decision a clear and permanent home, from the first spark of an idea to the final deliverable. Who Is It For? Project Notebook is the perfect companion for anyone working on any type of project, including: ⢠Creative projects ā branding, illustration, photography, video production ⢠Engineering & technical work ā hardware development, circuit design, software features ⢠Education & curriculum design ā STEAM lessons, workshops, teaching materials ⢠Event planning & execution ā exhibitions, performances, community events ⢠Hobbies & handcraft ā 3D printing, woodworking, sewing, cooking experiments ⢠Work tasks & business projects ā proposals, reports, client deliverables Core Features ⢠Step-by-Step Documentation Break your project into clear, ordered steps. Attach photos, videos, and handwritten notes (with Apple Pencil support) to each step, so the entire process is captured in full detail. ⢠Bill of Materials (BOM) Record every material, component, or resource you need ā with name, quantity, specification, and notes ā so procurement and preparation are always organised. ⢠Project Status Tracking Tag each project as Idea, In Progress, Paused, or Completed. Filter and sort your project list to stay on top of what matters most. ⢠Reflection & Review After completing a project, capture what worked, what was challenging, and what you'd do differently next time. Turn every experience into a lesson for the future. ⢠Export as a Web Page Export any project as a fully self-contained HTML page, bundled with all attachments into a single ZIP file ā ready to share with teammates, clients, or archive for future reference. How to Use 1. Create a project ā Enter a title, description, choose a category (Project / Idea / Note) and set a status. 2. Add your materials ā List every material or resource with quantity and specifications. 3. Document each step ā Add steps with text descriptions, photos, videos, or Apple Pencil handwriting. 4. Write your reflection ā Record what you learned, what was hard, and how to improve next time. 5. Export and share ā Export the full project as a ZIP web archive to share or back up.
Screenshots
Verdict
The clearest difference is in-app purchases: Project Notebook + at none against Constellation's 1. Constellation's advantage is device support (4 vs 2). On price, update cadence, ads and iOS requirement there is nothing between them.
Scored on Price Ā· Rating Ā· Positive reviews Ā· Number of ratings Ā· Update frequency Ā· Ads Ā· In-app purchases Ā· Monetization Ā· Best chart rank Ā· Devices Ā· Requires iOS
Both are free to download. Constellation sells 1 one-off in-app purchase. Project Notebook + asks for nothing beyond the download.
Constellation ships an update every 2 months, Project Notebook + monthly. The most recent releases landed on October 28, 2026 and October 31, 2026 respectively.
| Parameter | Constellation | Project Notebook + |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 2 months | Monthly ā better |
| Ads | No | No |
| In-app purchases | Yes | No ā better |
| Devices | iPhone, iPad, Mac, Vision Pro ā better | iPhone, iPad |
| Requires iOS | 18.0 | 18 |
| Further details ā not scored | ||
| Size | 19 MB | 8 MB |
| Age rating | 4+ | 4+ |
| Developer | Drobinin Limited | Yan Kin LEUNG |
In-app purchases
Constellation
- Personal Wiki Pro$39.99
Project Notebook +
No in-app purchases
Questions
Is Constellation free?
Is Project Notebook + free?
Do Constellation or Project Notebook + have ads?
Which is updated more often, Constellation or Project Notebook +?
Other comparisons















