Comparison

Vox Imago vs PolyRhythmic Metronome

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

Head to head
About

Vox Imago

Explore the world of opera with this multimedia series. Access documentaries, full audio recordings, librettos, essays, and historical insights. An interactive reading experience enriches the digital volume with integrated video, audio, and text content.

Highlights
  • Interactive volume reading with Page Spotter
  • Exclusive opera documentaries
  • Opera highlights and full audio recordings
  • Synopsis, libretto, and listening guide
  • Access to historical sources
  • Offline audio and video playback
Features
Read full description

Vox Imago is a multimedia series devoted to spreading the knowledge of opera, curated by Intesa Sanpaolo as part of its Progetto Cultura (Culture Project). The project envisions the selection of one opera title each year, and consists of a digital platform proposing: a documentary, a video selection and complete audio recording of the opera, with its synopsis libretto, essays, insights and historical sources of the opera analysed in the issue.The edition is completed by a richly illustrated volume with specific essays and a cahier. Vox Imago App provides direct access to all contents and, moreover, allows an interactive and dynamic reading of the volume. Using Page Spotter feature, you can enrich your experience with video, audio and textual contents. In the margins of the text you will find three different icons: video (vox imago), audio (vox) and texts/images (imago). After logging in to the app, clickc "Page Spotter" from the right-hand menu: focus on the whole page you are interested in and the app will show you the related contents. Then tap on the icon to see them. - Explore the related contents of Vox Imago volume using the Page Spotter - Discover the opera and its composer through an exclusive documentary - Watch the highlights of the opera in live recording - Listen to the complete audio recording of the opera - Read synopsis, libretto and listening guide - Browse through the full volume online wherever you are - Access to the historical sources that had inspired the creation of such great operas - Are you a teacher? Discover the Study Guide for Secondary Schools - Extra: Interviews and Audiofiles - Enjoy offline audio and video. Note: make sure you are connected to the Internet and you have sufficient space to download the content. The device screen must be active while downloading the files. Free registration. All users can register without code via an e-mail address and by creating a password. This subscriptions gives access to synopsis, libretto, listening guide, study guide and some extras. Registration by code is available for those who have received a paper issue of the project, containing the cahier with a code the cover. The regitration gives access to all contents.

About

PolyRhythmic Metronome

Features
Read full description

Polyrhythmic Metronome is an advanced rhythm trainer designed for musicians who want to master polyrhythms, cross-rhythms, and complex time signatures. Practice with up to 3 simultaneous rhythm layers, choose from 20+ professional sounds, and take your timing to the next level. POLYRHYTHM ENGINE • Play 2 or 3 rhythm layers simultaneously (2:3, 3:4, 5:4, 7:4, 2:3:4, 3:4:5, and more) • Custom ratios up to 16 per layer • BPM range from 20 to 300 • Tap tempo for quick tempo matching • Per-beat accent cycling (accent, normal, ghost) • Visual playback grid with real-time position tracking 20+ PROFESSIONAL SOUNDS • Drums: Kick, Snare, Hi-Hat, Crash, Cowbell, Clap, Rim Shot, Toms • Pitched tones and bleeps for melodic practice • Piano sounds for harmonic context • Per-layer sound selection with session persistence GROOVE GENERATOR • Auto-generated drum grooves based on your polyrhythm pattern • 6-instrument drum machine: Kick, Snare, Hi-Hat, Crash, Bass, Piano • Step sequencer grid with tap-to-edit cells • Per-instrument mixer with volume and mute controls • Regenerate for endless groove variations • Independent BPM control SPEED TRAINER (Pro) • Automatic tempo increment during practice • Set start BPM, target BPM, bars per step, and BPM increment • Build speed gradually without interrupting your flow GHOST MODE (Pro) • Random beat muting to strengthen your internal pulse • Adjustable mute probability (10%–80%) • Re-randomizes each loop for unpredictable training PITCH EDITOR (Pro) • Piano-roll editor for per-beat pitch control on melodic sounds • Chromatic note selection across octaves 2–6 • Real-time preview and live rescheduling PDF EXPORT (Pro) • Export polyrhythm notation as print-ready PDF • Export groove patterns with velocity indicators • Share or print directly from the app • Includes practice tips for each pattern MIXER • Per-track volume sliders • Mute and solo controls • Real-time volume adjustment during playback Perfect for drummers, percussionists, guitarists, pianists, and any musician looking to improve their rhythmic independence and timing accuracy. From RiffRoutine — apps and resources for musicians. Terms of Use: https://www.riffroutine.com/terms

Screenshots

Vox Imago4 screens
PolyRhythmic Metronome4 screens

Verdict

The call

The clearest difference is in-app purchases: Vox Imago at none against PolyRhythmic Metronome's 2. PolyRhythmic Metronome's advantage is iOS requirement (13.0 vs 16.6). On price, update cadence, ads 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. PolyRhythmic Metronome sells 2 in-app purchases, starting at $2.99 per month. Vox Imago asks for nothing beyond the download.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on October 8, 2026 and October 3, 2026 respectively.

Scorecard2 real differences · 6 level
Vox Imago versus PolyRhythmic Metronome: the parameters behind the verdict, then further details
ParameterVox ImagoPolyRhythmic Metronome
PriceFreeFree
Positive reviews0.0% of reviews—
Update frequencyEvery 2 monthsEvery 2 months
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree—
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS16.613.0 — better
Further details — not scored
Size158 MB82 MB
Age rating4+4+
DeveloperMusicom.it S.r.l.Romeu Beato

In-app purchases

None

Vox Imago

No in-app purchases

2 purchases

PolyRhythmic Metronome

Subscriptions1
  • Polyrhythmic Metronome Pro7 Days trial$2.991 Month
One-time1
  • Polyrhythmic Metronome - Lifetime$8.99

Questions

Is Vox Imago free?
Vox Imago is free to download, with no in-app purchases.
Is PolyRhythmic Metronome free?
PolyRhythmic Metronome is free to download, with in-app purchases available.
Do Vox Imago or PolyRhythmic Metronome have ads?
Neither Vox Imago nor PolyRhythmic Metronome shows ads.
Which is updated more often, Vox Imago or PolyRhythmic Metronome?
Vox Imago ships an update every 2 months, and PolyRhythmic Metronome every 2 months. Most recently, Vox Imago was updated on October 8, 2026 and PolyRhythmic Metronome on October 3, 2026.

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