# rubra vs My Knowledge Base

The clearest difference is review sentiment: rubra at 100% against My Knowledge Base's 0%. rubra also leads on rating (5.0 vs 2.0) and in-app purchases (none vs 1). On price, update cadence, ads and iOS requirement there is nothing between them.

Both are free to download. My Knowledge Base sells 1 one-off in-app purchase. rubra asks for nothing beyond the download.

rubra holds the better App Store score, 5.0 against 2.0. Both are backed by a comparable volume of ratings — 4 and 1 respectively. Written reviews point the same way: 100% of rubra's written reviews are positive against 0% of My Knowledge Base's.

Both ship on a similar rhythm, roughly every 5 weeks. The most recent releases landed on September 7, 2026 and September 15, 2026 respectively.

## The numbers

| Metric | rubra | My Knowledge Base |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (4 ratings)](https://appshunter.io/ios/app/rubra-bookmarks-and-notes/id1673761012/reviews)** | [2.0 (1 ratings)](https://appshunter.io/ios/app/my-knowledge-base/id6575390471/reviews) |
| Number of ratings | **4** | 1 |
| Positive reviews | **100.0% of reviews** | 0.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 5 weeks | Every 5 weeks |
| Monetization | **Free** | Free with in-app purchases |
| Size | 43 MB | 8 MB |
| Requires iOS | **15.6** | 16.0 |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [rubra ag](https://appshunter.io/developer/1673761014) | [Wiktor Starzyk](https://appshunter.io/developer/1490335440) |

## What reviewers say

### rubra

[App page](https://appshunter.io/ios/app/rubra-bookmarks-and-notes/id1673761012)

Save, organize, and share bookmarks with visual previews and notes. Create private or public collections for collaboration and easily find inspiration with tags and search.

**Highlights:** Save bookmarks with visual previews, Add notes to saved content, Organize with tags, Filter and search content, Create private or public collections, Collaborate on collections, Share collections

**Features:** Vision Pro support

**In-app purchases:** none


### My Knowledge Base

[App page](https://appshunter.io/ios/app/my-knowledge-base/id6575390471)

Capture and organize all your ideas, facts, and details effortlessly. This app acts as a personal database, allowing you to store various types of information and retrieve it quickly with a powerful search system. Customize your data input with templates for efficient management.

**Highlights:** Capture ideas and facts, Store text, photos, links, sketches, Customizable entry templates, Powerful search and query system, Organize information efficiently

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock Unlimited Items | $2.99 | one-time |


## Frequently asked questions

### Is rubra free?

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

### Is My Knowledge Base free?

My Knowledge Base is free to download, with in-app purchases available.

### Which has better reviews, rubra or My Knowledge Base?

rubra is rated higher. rubra averages 5.0 out of 5 from 4 ratings, while My Knowledge Base averages 2.0 from 1 ratings.

### Do rubra or My Knowledge Base have ads?

Neither rubra nor My Knowledge Base shows ads.

### Which is updated more often, rubra or My Knowledge Base?

rubra ships an update every 5 weeks, and My Knowledge Base every 5 weeks. Most recently, rubra was updated on September 7, 2026 and My Knowledge Base on September 15, 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.*