Instruments vs Karl
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Instruments
Explore a unique collection of 18th and 19th-century scientific instruments used for research and public demonstrations. Discover artifacts related to electricity, acoustics, light, magnetism, thermodynamics, and measurements, all housed in their original museum setting.
- 18th and 19th-century scientific instruments
- Covers electricity, acoustics, light, magnetism
- Thermodynamics and measurements included
- View instruments in original museum setting
- Housed in Ovale Zaal and Instrumentenzaal
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Het Fysisch Kabinet herbergt een verzameling wetenschappelijke instrumenten uit de 18e en 19e eeuw. Deze instrumenten werden gebruikt voor onderzoek én voor publieke demonstraties. Ze hebben betrekking op de volgende gebieden: elektriciteit, akoestiek, licht, magnetisme, thermodynamica en maten en gewichten. Teylers Museum is de enige plek ter wereld waar zo’n collectie nog steeds te zien is in de oorspronkelijke omgeving! De instrumenten bevinden zich in de Ovale Zaal en de Instrumentenzaal.
Karl
Explore the Museum Karl-Marx House with virtual tours and directions. Access exhibition texts in multiple languages and audio guides to deepen your understanding of the exhibits.
- Virtual tours and directions
- Exhibition texts in 7 languages
- Audio guides in German and English
- Interactive site map
- Historical exhibition slider
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The app offers various tours and directions around the Museum Karl-Marx House. You can now explore new aspects of our exhibition from the comfort of your own home or while you are here. You can look forward to • Exhibition texts in English, French, Spanish, Portuguese, Dutch, Italian and Chinese • Audio guides in German and English • Site map for easy orientation • Insights into previous exhibitions with a before and after slider
Screenshots
Verdict
The clearest difference is iOS requirement: Karl at 13.0 against Instruments's 15.6. On price, ads, in-app purchases and monetization model 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. Neither carries in-app purchases, so what you see is what you pay.
| Parameter | Instruments | Karl |
|---|---|---|
| Price | Free | Free |
| Rating | 1.5 (2 ratings) — better | — |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | 2 — better | — |
| Update frequency | Every 89 months | — |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 15.6 | 13.0 — better |
| Further details — not scored | ||
| Size | 385 MB | 42 MB |
| Age rating | 4+ | 4+ |
| Developer | Livecast | KULDIG |
Customer experience
Instruments
Karl
In-app purchases
Instruments
No in-app purchases
Karl
No in-app purchases
