4 bars Metronome vs Opera GO
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
4 bars Metronome
Read full descriptionHide full description
"4 bars Metronome" is a metronome that plays 4 bars bass notes. You can start jam session immediately with very simple operation. Features - Metronome that plays bass sound - Switchable number of measures (4 bars / 8 bars) - Switchable BPM (min. 40, max. 250) - Switchable reference frequency (440hz, 442hz) - Changeable bass tones - Switchable sequencer settings
Opera GO
Read full descriptionHide full description
The must-have app to fully enjoy the Augmented Reality experience Opera GO through Luxembourg City. The Queen of the Night’s darling operas have escaped and are on the loose in the old town. Use this unique opera catching device to track them down, interact with them and bring them home to the worried Queen. Don’t forget your headphones. Opera GO is a mixed reality Opera created by Anne Simon and Anthime Miller for Volleksbühn. Partners - Kreativstuff, Lucilin, De Gudde Wëllen, CNA, Ecole de Musique Régionale Dudelange With the support of - Filmfund Luxembourg, Oeuvre de Secours Grande Duchesse Charlotte, Ville de Luxembourg, Fondation Indépendance, Ministère de la Culture.
Screenshots
Verdict
The clearest difference is update cadence: 4 bars Metronome at every 5 days against Opera GO's every 2 weeks. Opera GO's advantage is iOS requirement (12.0 vs 16.4). 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.
4 bars Metronome ships an update every 5 days, Opera GO every 2 weeks. Both last shipped on October 10, 2026.
| Parameter | 4 bars Metronome | Opera GO |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 5 days — better | Every 2 weeks |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad | iPhone, iPod |
| Requires iOS | 16.4 | 12.0 — better |
| Further details — not scored | ||
| Size | 26 MB | 177 MB |
| Age rating | 4+ | 4+ |
| Developer | Hitoshi Yamaguchi | Velvet Flare |
In-app purchases
4 bars Metronome
No in-app purchases
Opera GO
No in-app purchases
Questions
Is 4 bars Metronome free?
Is Opera GO free?
Do 4 bars Metronome or Opera GO have ads?
Which is updated more often, 4 bars Metronome or Opera GO?
Other comparisons
