Comparison

rubra vs My Knowledge Base

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

rubra

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
Read full description

rubra is the app for collecting, organizing, and sharing what inspires you. Save bookmarks with visual previews, add notes, and never lose your favorite articles, stories, or ideas. Organize your content with tags, and easily sort, filter, or search to find exactly what you need. Create private or public collections and invite others to collaborate, keeping everything organized and accessible. Share your collections to inspire friends and the community. With rubra, collecting ideas, staying organized, and keeping inspiration at your fingertips has never been easier.

About

My Knowledge Base

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
Read full description

Meet My Knowledge Base: your brain’s new best friend. It’s the app that captures every brilliant idea, random fact, or fleeting detail you stumble across daily—before they slip away. Part note-taking wizard, part personal database powerhouse, it’s a memory upgrade for anyone who’s ever blanked on that one thing they swore they’d remember. Store it all in Entries—think text snippets, numbers, dates, photos, quick sketches, web links, and more. Add a label if you’re feeling fancy, and boom, it’s findable later. With Custom Entry Templates, you can slam data in fast, tailored to your style, and still dig it up effortlessly when you need it. The real magic? A slick query system that hunts down exactly what you’re after, no rummaging required. My Knowledge Base doesn’t just store your life—it hands it back to you, organized and on demand.

Screenshots

rubra4 screens
My Knowledge Base4 screens

Verdict

The call

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.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

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

ReceptionRating · Positive reviews · Number of ratings

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.

UpkeepUpdate frequency

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

Scorecard6 real differences · 4 level
rubra versus My Knowledge Base: the parameters behind the verdict, then further details
ParameterrubraMy Knowledge Base
PriceFreeFree
Rating5.0 (4 ratings) — better2.0 (1 ratings)
Positive reviews100.0% of reviews — better0.0% of reviews
Number of ratings4 — better1
Update frequencyEvery 5 weeksEvery 5 weeks
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPad, iPod, Mac — betteriPhone, iPad
Requires iOS15.6 — better16.0
Further details — not scored
Size43 MB8 MB
Age rating4+4+
Developerrubra agWiktor Starzyk

Customer experience

rubra

All ratings4 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews3 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

My Knowledge Base

All ratings1 ratings
Positive0.0%
Neutral0.0%
Negative100.0%
Written reviews1 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

In-app purchases

None

rubra

No in-app purchases

1 purchases

My Knowledge Base

One-time1
  • Unlock Unlimited Items$2.99

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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