Unnecessary knowledge mobile vs STRUCTOGRAM
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Unnecessary knowledge mobile
Discover a vast collection of over 2,100 intriguing and often amusing facts across 18 diverse categories. Learn about everything from internet passwords to medical terms and historical trivia. Save your favorite facts for easy access.
- 2,100+ useless facts
- 18 fact categories
- Save favorite facts
- Facts from trivia shows
- Categorized trivia
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Did you know 123456 is the most frequently used password on the internet? Or did you know that “Rhinotillexomania” is the medical term for picking your nose? If not, this App is just the thing for you. We have collected around 2,100 useless facts from all over the world and put them into an App. The facts are listed in 18 different categories: - Around the World - Celebs - Computers - Europe - Food and drink - History - Languages - Laws and Regulations - Love and Sex - Maths, Physics and Chemistry - Records - Religion - Statistics - The Human Body - The Plant World and The Animal Kingdom - The USA - TV & Film - Others You can save your favourite facts too. They’ll be listed in extra category “Favourites.” The facts aren’t quite as useless as the name suggests though ... Some of them have been asked on “Who wants to be a Millionaire?”
STRUCTOGRAM
Explore biostructural analysis through interactive sampling and practice. Designed for professionals, this application offers a hands-on way to engage with and understand complex analytical concepts.
- Biostructural analysis exploration
- Interactive sampling tool
- Practice for professionals
- Educational resource
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Discover the Biostructural Analysis with the Structogram. This app is to sample, to play and as practice for Structogram professionals.
Screenshots
Verdict
The clearest difference is in-app purchases: STRUCTOGRAM at none against Unnecessary knowledge mobile's 1. STRUCTOGRAM also leads on ads (none vs shown). Unnecessary knowledge mobile's advantage is update cadence (every 3 months vs every 9 months) and iOS requirement (9.0 vs 15.6). On price, review sentiment and device support 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
Both are free to download. Unnecessary knowledge mobile sells 1 one-off in-app purchase. STRUCTOGRAM asks for nothing beyond the download.
Unnecessary knowledge mobile ships an update every 3 months, STRUCTOGRAM every 9 months. The most recent releases landed on September 28, 2026 and June 25, 2026 respectively.
| Parameter | Unnecessary knowledge mobile | STRUCTOGRAM |
|---|---|---|
| Price | Free | Free |
| Rating | 4.8 (6 ratings) — better | — |
| Positive reviews | 80.1% of reviews — better | 75.0% of reviews |
| Number of ratings | 6 — better | — |
| Update frequency | Every 3 months — better | Every 9 months |
| Ads | Yes | No — better |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 9.0 — better | 15.6 |
| Further details — not scored | ||
| Size | 22 MB | 62 MB |
| Age rating | 12+ | 4+ |
| Developer | Benjamin Lochmann | IBSA Institut für Biostruktur-Analysen AG |
Customer experience
Unnecessary knowledge mobile
STRUCTOGRAM
Bugs and requests
Unnecessary knowledge mobile
Reported bugs
5 issues- Share to Facebook button non-functional
- Repetitive facts displayed
- Contradictory facts within app
- Small navigation buttons on iPad
- No landscape orientation support
Requested features
8 requests- More facts and regular updates
- Landscape view for iPad
- Better navigation with back/forward buttons
- Ability to filter out Love and Sex category
- Larger next/previous buttons
Show 3 moreShow fewer
- Tweet/share functionality improvements
- Remove duplicate facts
- Source citations for facts
STRUCTOGRAM
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Unnecessary knowledge mobile
- Adfree!$0.99
STRUCTOGRAM
No in-app purchases
Questions
Is Unnecessary knowledge mobile free?
Is STRUCTOGRAM free?
Do Unnecessary knowledge mobile or STRUCTOGRAM have ads?
Which is updated more often, Unnecessary knowledge mobile or STRUCTOGRAM?
Other comparisons
