Comparison

Vibrato Trainer vs ARPJAM

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

ARPJAM

This app generates evolving ambient music using two independent arpeggio engines. It features a generative drum machine, sound design tools, and external instrument synchronization. Save and recall your favorite musical setups.

Highlights
  • Dual arpeggio engines
  • Generative drum machine
  • Sound design controls
  • External instrument sync (Ableton Link, MIDI Clock)
  • Save and recall presets
  • Built-in timer
Features
Read full description

ARPJAM is an arpeggio synthesizer that generates ever-evolving ambient music. Layer two independent arpeggio engines, each with its own waveform, scale, and pattern, and let the app weave an endless soundscape that shifts and breathes on its own. ■ Two Arpeggio Engines ARP A and ARP B run simultaneously, each with its own mode, scale, range, waveform, filter, and envelope. Five pattern modes: Random & Chord, Repeat, Random Single, Skank, and Drone. ■ Generative Drums A probability-based drum machine. Tune the firing density, double-hit chance, and open/closed hi-hat ratio for kick, snare, and hihat to create rhythms that evolve naturally alongside the arpeggio. ■ Sound Design Four waveforms — sine, triangle, sawtooth, square. Adjust the low-pass filter, attack, and overdrive per engine. Add depth with ping-pong delay and reverb. ■ Sync with External Instruments [NEW in v1.4] Ableton Link support — wirelessly sync tempo and bar phase with Ableton Move, Live, Koala, and other Link-enabled instruments on the same Wi-Fi network. USB-C MIDI Clock reception is also supported. Sample-accurate timing alignment, with a fine-tune Offset slider for each setup. ■ Redesigned Settings Panel [v1.4] Settings are now organized into five colored sections — Oscillator, Filter, Envelope, Algorithm, and Effects. Each section collapses individually or in bulk, and the state persists between launches. Jump directly to any section via the side rail (iPad) or sticky bar (iPhone). Clear square ON/OFF switches and vivid theme colors — orange for ARP A, lime for ARP B, cyan for Drums — make the whole panel far easier to navigate. ■ Save & Recall Four start presets (Default + SAVE 1/2/3) let you recall your favorite setups with a single tap from the start screen. Presets can be exported and imported as .arpjam files to share with other ARPJAM users. ■ Built-in Timer Choose countdown or infinite mode. The timer fades out with a gentle resolving chord — perfect as a sleep timer or as a companion to meditation. • 8 scales including pentatonic modes • 12 keys (Just Intonation / Equal Temperament switchable) • Groove control for swing feel • BPM 30–200 • English / Japanese language support • Ableton Link / MIDI Clock sync

Screenshots

Vibrato Trainer3 screens
ARPJAM4 screens

Verdict

The call

The clearest difference is in-app purchases: Vibrato Trainer at none against ARPJAM's 1. ARPJAM's advantage is update cadence (daily vs every 10 days). On price, rating, ratings volume and ads 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. ARPJAM 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 ARPJAM. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

UpkeepUpdate frequency

Vibrato Trainer ships an update every 10 days, ARPJAM daily. Both last shipped on October 4, 2026.

Scorecard2 real differences · 8 level
Vibrato Trainer versus ARPJAM: the parameters behind the verdict, then further details
ParameterVibrato TrainerARPJAM
PriceFreeFree
Rating5.0 (1 ratings)5.0 (1 ratings)
Positive reviews—33.3% of reviews
Number of ratings11
Update frequencyEvery 10 daysDaily — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFreeFree
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.015.0
Further details — not scored
Size2 MB7 MB
Age rating4+4+
DeveloperMichael Van BebberTakashi Tsunoda

Customer experience

Vibrato Trainer

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

ARPJAM

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews3 reviews
Positive33.3%
Neutral0.0%
Negative66.7%

In-app purchases

None

Vibrato Trainer

No in-app purchases

1 purchases

ARPJAM

One-time1
  • Remove Ads$0.99

Questions

Is Vibrato Trainer free?
Vibrato Trainer is free to download, with no in-app purchases.
Is ARPJAM free?
ARPJAM is free to download, with in-app purchases available.
Which has better reviews, Vibrato Trainer or ARPJAM?
Vibrato Trainer and ARPJAM are both rated 5.0 out of 5 on the App Store, from 1 and 1 ratings respectively.
Do Vibrato Trainer or ARPJAM have ads?
Neither Vibrato Trainer nor ARPJAM shows ads.
Which is updated more often, Vibrato Trainer or ARPJAM?
Vibrato Trainer ships an update every 10 days, and ARPJAM daily. Most recently, Vibrato Trainer was updated on October 4, 2026 and ARPJAM on October 4, 2026.

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