Nemos vs Capacities App on iPhone: Which Is Better in 2026?
Nemos vs Capacities for iPhone in 2026. Capacities wins on object-based schemas, daily notes, visual canvas, and structured PKM. Nemos wins on capture speed, voice, offline AI search, price (free), and mobile-first design.
Capacities is an "object-based" note-taking app — a Berlin startup that rethinks notes as typed entities. Instead of generic notes, every page has a type: a Person object, a Book object, a Project object, an Article object. Each type has defined properties and a template. The result is a database-like knowledge system with a beautiful, opinionated interface.
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What Capacities does differently
The core concept of Capacities is that untyped notes lose information. When you log information about a book, it should be stored as a Book type — with properties for author, genre, rating, and reading status. When you log a person, it should be a Person type — with email, company, and relationship context. This schema approach makes knowledge retrieval much more structured.
Objects: Every page in Capacities has a type. Built-in types include Person, Book, Article, Movie, Tag, Daily Note. Custom types let you create your own schemas.
Daily notes: Like Roam and Logseq, Capacities has a daily notes journal. Entries appear in a chronological journal view and link to objects mentioned in the notes.
Canvas: A visual workspace for mapping connections between objects and notes. Useful for brainstorming and seeing relationships.
Backlinks and mentions: Every object automatically shows where it is referenced across your notes.
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Speed comparison on iPhone
Capacities on iPhone: Native iOS app exists (2026). Cold start 2-4 seconds. Navigate to daily notes or an object type, create a new entry. The object-type selection adds a layer of friction compared to plain note apps.
Nemos on iPhone: Lock screen widget reaches capture in 1-2 seconds. No navigation, no type selection. Voice, text, or photo.
Winner: Nemos for ambient capture.
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Organization and structure
Capacities: Object-based schemas with typed properties. Every note belongs to a defined type. Rich filtering and querying by properties. Canvas for visual organization. This is significantly more structured than any other notes app.
Nemos: Spaces (project containers) with a flat list of untyped notes. Organization is minimal — retrieval is done by semantic search, not by browsing a structured database.
Winner: Capacities for users who want structured, typed knowledge databases.
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AI and search
Capacities: AI writing assistance (summarize, rewrite, expand). Property-based filtering (show all Books with rating ≥ 4). Keyword search across all content. Semantic search not the primary retrieval model.
Nemos: On-device semantic AI search via Apple's Foundation Models. Query by concept — finds notes by meaning without exact keywords. Fully offline. No AI writing assistance.
Winner: Nemos for semantic retrieval. Capacities for AI writing.
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Offline
Capacities: Requires internet for full functionality. Notes are cloud-synced. Offline mode limited.
Nemos: Fully offline. Voice transcription, capture, semantic search — all on-device, no connectivity required.
Winner: Nemos for offline users.
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Price
Capacities: Free tier (limited objects/features); $10/month for full access.
Nemos: Free. No paid tier as of 2026.
Winner: Nemos is free. Capacities is $10/month.
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Quick comparison
| Feature | Nemos | Capacities |
|---|---|---|
| Cold start iPhone | 1-2 sec | 2-4 sec |
| Voice capture | Yes (on-device AI) | No |
| Object types/schemas | No | Yes (core feature) |
| Daily notes | No | Yes |
| Semantic search | Yes (on-device) | Limited |
| Canvas / visual | No | Yes |
| Offline | Fully offline | Partial |
| Cross-platform | iPhone/iPad | Web/Mac/Windows/iOS |
| Price | Free | Free / $10/mo |
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Who should choose which
Choose Nemos if: - Fast ambient capture on iPhone is the priority - Voice notes with semantic search matter - You want offline, private, free notes - Mobile is your primary device
Choose Capacities if: - You want typed knowledge objects (Books, People, Projects) with properties - Building a structured database of linked entities matters - You primarily work on desktop (web/Mac) - You follow the daily notes + backlinks workflow - You want visual canvas for mapping ideas
Use both if: - Nemos for iPhone ambient capture throughout the day - Capacities on desktop for building the typed knowledge structure
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Related Reading
- Nemos vs Roam Research — similar comparison for Roam (another linked PKM tool)
- Nemos vs Logseq on iPhone — desktop-first PKM vs mobile-first capture
- What is PKM? — the theory behind tools like Capacities
- How to build a second brain on iPhone in 2026 — systematic knowledge system for iPhone
FAQ
Is Nemos better than Capacities for iPhone? For iPhone-primary use: Nemos is faster (lock screen widget, voice, no navigation), free, and offline. Capacities's mobile app is functional but the tool is designed for desktop use where its object-type system shines. For ambient capture and retrieval on iPhone, Nemos is the stronger choice. For structured typed knowledge databases, Capacities on desktop is more capable.
What is Capacities app used for? Capacities is used for building a structured personal knowledge system where notes are typed objects (Person, Book, Article, Project) with properties. Use cases include: logging books read with ratings and notes, tracking people with relationship context, managing projects with linked resources, and building a linked knowledge graph with daily notes and backlinks. It is primarily for desktop-first knowledge workers.
Does Capacities work offline on iPhone? Capacities has limited offline support — recently viewed notes are cached. Full functionality requires internet connectivity. Nemos is fully offline — voice transcription, capture, and semantic search all work without connectivity via Apple's on-device Foundation Models.
Is Capacities worth $10 per month? For users who want object-based typed notes, daily notes with backlinks, visual canvas, and a structured database approach to knowledge: yes, $10/month is competitive with tools like Notion AI and Roam. For users whose primary need is fast capture and semantic retrieval on iPhone, Nemos is free and serves that use case better.
What is the best Capacities alternative for iPhone? Nemos for fast ambient capture with on-device AI (free, offline). Obsidian for local-first linked notes with properties via frontmatter (free). Notion for database-like notes with team sharing ($10-15/month). Logseq for free open-source daily notes with typed pages and backlinks.
Sources
- Capacities website: features and pricing — pricing verified July 2026
- Apple Developer Documentation: Foundation Models Framework — on-device AI powering Nemos semantic search
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The hybrid approach works. Many structured PKM users find that Capacities handles the knowledge architecture they build at the desktop, while Nemos handles the ambient iPhone capture that feeds it. Capture on Nemos, build in Capacities. Download Nemos free →
Taha built Nemos after years of losing screenshots and voice memos across a dozen apps. He writes about on-device AI, personal knowledge management, and building privacy-first tools for iPhone.
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