Libretto Scala vs SO/ Vienna
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Libretto Scala
Read full descriptionHide full description
Experience todays performance in your preferred language and get more information about the play.
SO/ Vienna
Read full descriptionHide full description
SO / Vienna is a free augmented reality app that lets users experience art and design within the grand lobby of the SO Hotel in Vienna, in relation to public events.
Screenshots
Verdict
The clearest difference is update cadence: SO/ Vienna at every 9 days against Libretto Scala's monthly. On price, ads, in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.
Libretto Scala ships an update monthly, SO/ Vienna every 9 days. The most recent releases landed on October 11, 2026 and October 9, 2026 respectively.
| Parameter | Libretto Scala | SO/ Vienna |
|---|---|---|
| Price | Free | Free |
| Update frequency | Monthly | Every 9 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 14.0 | 14.0 |
| Further details — not scored | ||
| Size | 5 MB | 261 MB |
| Age rating | 4+ | 4+ |
| Developer | Lemon42 IT, Web und Software GmbH | Artefact Mixed Reality Studio OG |
In-app purchases
Libretto Scala
No in-app purchases
SO/ Vienna
No in-app purchases
Questions
Is Libretto Scala free?
Is SO/ Vienna free?
Do Libretto Scala or SO/ Vienna have ads?
Which is updated more often, Libretto Scala or SO/ Vienna?
Other comparisons
