# Supernotes vs Open Citadel

The clearest difference is in-app purchases: Open Citadel at none against Supernotes's 3. Supernotes's advantage is iOS requirement (15.0 vs 17.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Supernotes sells 3 in-app purchases, starting at $11.00 per month. Open Citadel asks for nothing beyond the download.

Supernotes ships an update monthly, Open Citadel fortnightly. The most recent releases landed on October 22, 2026 and October 20, 2026 respectively.

## The numbers

| Metric | Supernotes | Open Citadel |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (127 ratings)](https://appshunter.io/ios/app/supernotes-notes-and-journal/id1567815218/reviews)** | — |
| Number of ratings | **127** | — |
| Positive reviews | 91.2% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Monthly | **Fortnightly** |
| Monetization | Freemium | — |
| Size | 106 MB | 95 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Supernotes](https://appshunter.io/developer/1567815220) | [Thamsanqa Ncube](https://appshunter.io/developer/6789093614) |

## What reviewers say

### Supernotes

[App page](https://appshunter.io/ios/app/supernotes-notes-and-journal/id1567815218)

Organize your thoughts and ideas with a fast, lightweight note-taking app. Create visually rich notecards with Markdown and LaTeX support, enhanced by AI writing assistance. Build interconnected knowledge networks and share them seamlessly.

**Highlights:** Shareable Markdown notecards, AI writing assistance, Bi-directional card linking, 2D/3D graph visualization, Spaced repetition flashcards, Real-time collaboration, Offline support

**Features:** Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Supernotes Unlimited (1 Month) | $11.00 | per month |
| Supernotes Unlimited (Promo) | $69.00 | per year |
| Supernotes Unlimited (1 Year) | $99.00 | per year |

**What reviewers like**

- ✨ Beautiful design and UI
- 🚀 Fast and efficient
- 👍 Easy to use and intuitive
- 🧠 Powerful organization system
- 💡 Unique card-based concept

**What reviewers complain about**

- 🤔 Learning curve for some
- ⚠️ Limited initial note space
- 🎛️ Lacks advanced features for some users
- 📱 No iOS widgets
- 🔄 Cumbersome tagging for some

**Reported bugs**

- Blank white screen on app/web browser
- App doesn't work on iOS 15.4.1

**Requested features**

- iOS widgets for home and lock screens
- Alert for note space limit and prompt to edit/continue as journal entry
- Better image and video viewing
- Control center button
- Split screen functionality


### Open Citadel

[App page](https://appshunter.io/ios/app/open-citadel-self-development/id6789093612)

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

**In-app purchases:** none


## Frequently asked questions

### Is Supernotes free?

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

### Is Open Citadel free?

Open Citadel is free to download, with no in-app purchases.

### Do Supernotes or Open Citadel have ads?

Neither Supernotes nor Open Citadel shows ads.

### Which is updated more often, Supernotes or Open Citadel?

Supernotes ships an update monthly, and Open Citadel fortnightly. Most recently, Supernotes was updated on October 22, 2026 and Open Citadel on October 20, 2026.

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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.*