# Metaslip vs Singularity Codex

The clearest difference is device support: Metaslip at 4 against Singularity Codex's 1. Metaslip also leads on iOS requirement (15.6 vs 26.0). On price, ads and in-app purchases there is nothing between them.

Both are free to download. Metaslip sells 1 in-app purchase, starting at $14.99 per year and Singularity Codex sells 2 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

## The numbers

| Metric | Metaslip | Singularity Codex |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.5 (6 ratings)](https://appshunter.io/ios/app/metaslip-note-and-zettelkasten/id1565362148/reviews)** | — |
| Number of ratings | **6** | — |
| Positive reviews | 84.6% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 5 weeks | — |
| Monetization | Freemium | — |
| Size | 42 MB | 5 MB |
| Requires iOS | **15.6** | 26.0 |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone |
| Age rating | 4+ | 17+ |
| Developer | [彰文 厉](https://appshunter.io/developer/1527767000) | [BURAK KADAN](https://appshunter.io/developer/6811318808) |

## What reviewers say

### Metaslip

[App page](https://appshunter.io/ios/app/metaslip-note-and-zettelkasten/id1565362148)

This minimalist note-taking app helps users think deeply by implementing the Zettelkasten method. It prioritizes privacy with local data storage and offers robust export and backup options. Supports Markdown, LaTeX, and bidirectional linking for organized knowledge management.

**Highlights:** Local data storage, Markdown and LaTeX support, Bidirectional linking, Data export (Markdown, SQLite), Tag and project card management, WebDAV and iCloud backup (Pro)

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Yearly Pro | $14.99 | per year |


### Singularity Codex

[App page](https://appshunter.io/ios/app/singularity-codex-self-notes/id6811318806)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 14-day Trial | Free | one-time |
| Codex, for good | $12.99 | one-time |


## Frequently asked questions

### Is Metaslip free?

Metaslip is free to download, with in-app purchases available.

### Is Singularity Codex free?

Singularity Codex is free to download, with in-app purchases available.

### Do Metaslip or Singularity Codex have ads?

Neither Metaslip nor Singularity Codex shows ads.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*