Comparison

Vibrato Trainer vs Vocal Polish

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

Head to head
About

Vibrato Trainer

This metronome app is designed to help musicians understand and practice vibrato. It automatically maps vibrato subdivisions to musical pulses across different tempo zones, allowing users to hear and feel the correct rhythm in real time.

Highlights
  • Tempo-synced vibrato metronome
  • Automatic vibrato subdivision mapping
  • Tap tempo functionality
  • Multiple time signatures
  • Separate volume controls
  • Piano keyboard for pitch reference
  • Four waveform options
Features
Read full description

Vibrato Trainer is the only metronome built around a new understanding of how vibrato actually works. Based on original research by Michael Van Bebber, Vibrato Trainer reveals that vibrato is not a fixed speed — it is a rhythmic subdivision of the musical pulse. As tempo changes, the correct vibrato subdivision changes predictably across six distinct tempo zones. This app maps that relationship for you automatically. Set your tempo, and Vibrato Trainer shows you exactly which subdivision your vibrato should follow — and lets you hear and feel it in real time. Features: - Tempo-synced vibrato metronome from 50–400 BPM - Automatic vibrato subdivision mapping across 6 tempo zones - Tap tempo - Time signatures: 4/4 · 12/8, 3/4 · 9/8, and 2/4 · 6/8 - Separate volume controls for beat click, vibrato click, and pitch tone - Piano keyboard for pitch reference (C3–C6) - Four waveforms: sawtooth, square, triangle, sine - Visual dot animation synced to vibrato rhythm For singers, string players, wind players, brass players, and jazz musicians.

About

Vocal Polish

Record and enhance your singing locally without needing an internet connection. This app offers various presets and effects to make your voice sound cleaner and smoother. Compare your original and polished takes, then export the improved audio.

Highlights
  • Offline vocal recording
  • Smart vocal enhancement
  • Before and After comparison
  • Customizable recording names
  • Background noise reduction
  • Vocal presets and effects
  • Export enhanced WAV audio
Features
Read full description

Vocal Polish is an offline singing recorder that helps your voice sound cleaner, smoother, and more polished. Record a dry vocal take, enhance it on your device, compare Before and After, then export the improved version. It is built for casual singers who want a quick vocal polish without accounts, servers, or complicated studio tools. Features: - Record your singing as a local dry vocal - Enhance vocals offline with Smart Polish - Compare Before and After playback - Save multiple recordings with custom names - View simple waveforms for your takes - Reduce steady background noise - Choose vocal presets for different sounds - Try fun effects like Karaoke Room echo - Export the enhanced WAV audio - Keep original dry recordings available Preset options include Smart Polish, Natural Polish, Studio Echo, Bright Pop, Warm Radio, Soft Ballad, Dream Room, and Karaoke Room. Vocal Polish does not provide live microphone monitoring, live karaoke speaker routing, pitch correction, accounts, or cloud processing. Your recordings are processed locally on your device for a simple offline vocal enhancement workflow.

Screenshots

Vibrato Trainer3 screens
Vocal Polish4 screens

Verdict

The call

The clearest difference is in-app purchases: Vibrato Trainer at none against Vocal Polish's 1. Vocal Polish's advantage is iOS requirement (13.0 vs 15.0). On price, rating, ratings volume and update cadence 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. Vocal Polish sells 1 one-off in-app purchase. Vibrato Trainer asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 5.0 for Vibrato Trainer against 5.0 for Vocal Polish. Both are backed by a comparable volume of ratings — 2 and 1 respectively.

UpkeepUpdate frequency

Vibrato Trainer ships an update every 10 days, Vocal Polish every 5 days. The most recent releases landed on October 28, 2026 and October 20, 2026 respectively.

Scorecard2 real differences · 7 level
Vibrato Trainer versus Vocal Polish: the parameters behind the verdict, then further details
ParameterVibrato TrainerVocal Polish
PriceFreeFree
Rating5.0 (2 ratings)5.0 (1 ratings)
Number of ratings2 — better1
Update frequencyEvery 10 daysEvery 5 days — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFreeFree
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.013.0 — better
Further details — not scored
Size2 MB24 MB
Age rating4+4+
DeveloperMichael Van BebberSpace 64 LLC

In-app purchases

None

Vibrato Trainer

No in-app purchases

1 purchases

Vocal Polish

One-time1
  • Vocal Polish Pro$4.99

Questions

Is Vibrato Trainer free?
Vibrato Trainer is free to download, with no in-app purchases.
Is Vocal Polish free?
Vocal Polish is free to download, with in-app purchases available.
Which has better reviews, Vibrato Trainer or Vocal Polish?
Vibrato Trainer and Vocal Polish are both rated 5.0 out of 5 on the App Store, from 2 and 1 ratings respectively.
Do Vibrato Trainer or Vocal Polish have ads?
Neither Vibrato Trainer nor Vocal Polish shows ads.
Which is updated more often, Vibrato Trainer or Vocal Polish?
Vibrato Trainer ships an update every 10 days, and Vocal Polish every 5 days. Most recently, Vibrato Trainer was updated on October 28, 2026 and Vocal Polish on October 20, 2026.

Other comparisons