Comparison

libretto42 vs EFM App

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

Head to head

Subtitle app

About

libretto42

Features

Read full description

Does the theatre, opera or musical performance you attend offer subtitles via the libretto42 app? Just scan the QR code the venue provides and read along to the performance in real time. You can get additional information about the play, and switch between the provided translations. Use your headphones, if you wish to listen to the subtitles with the text-to-speech option. A stable internet connection is required. The app itself is available in English and German. The availability and number of the subtitle languages depends on the performance organisers.

About

EFM App

Features

Read full description

The EFM app aims to help film professionals attending the Berlinale navigate the festival more easily, by presenting news from the EFM and showing the festival and market schedules, even if you are offline.

Screenshots

libretto424 screens

EFM App4 screens

Verdict

The call

The clearest difference is update cadence: EFM App at every 4 days against libretto42's every 3 weeks. 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

libretto42 ships an update every 3 weeks, EFM App every 4 days. The most recent releases landed on October 2, 2026 and October 10, 2026 respectively.

Scorecard1 real difference · 5 level

libretto42 versus EFM App: the parameters behind the verdict, then further details
Parameter	libretto42	EFM App
Price	Free	Free
Update frequency	Every 3 weeks	Every 4 days — better
Ads	No	No
In-app purchases	No	No
Devices	iPhone, iPod	iPhone, iPad, iPod — better
Requires iOS	15.0 — better	15.1
Further details — not scored
Size	23 MB	37 MB
Age rating	4+	12+
Developer	Lemon42 IT, Web und Software GmbH	Kulturveranstaltungen des Bundes in Berlin (KBB) Gesellschaft mit beschraenkter Haftung

In-app purchases

None

libretto42

No in-app purchases

None

EFM App

No in-app purchases

Questions

Is libretto42 free?

libretto42 is free to download, with no in-app purchases.

Is EFM App free?

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

Do libretto42 or EFM App have ads?

Neither libretto42 nor EFM App shows ads.

Which is updated more often, libretto42 or EFM App?

libretto42 ships an update every 3 weeks, and EFM App every 4 days. Most recently, libretto42 was updated on October 2, 2026 and EFM App on October 10, 2026.