Comparison

Pentaholic Synth vs AllGoRhythmics

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

Head to head
About

Pentaholic Synth

This app digitally recreates a classic polyphonic synthesizer, offering authentic sound design and songwriting inspiration. It features a 300-note sequencer, multiple oscillators per voice, and performance controls like a joystick and expression pedal inputs.

Highlights
  • Authentic 5-voice polyphony
  • 3 oscillators per voice with 8 waveforms
  • Component-level circuit modeling
  • Dual ADSR envelopes
  • 300-note polyphonic sequencer
  • Joystick and expression pedal support
Features
Read full description

Pentaholic is the first digital recreation of the Gleeman Pentaphonic. It's audio signal path is traced at the component level and built specifically for Apple Silicon devices utilizing native Metal 3D graphics featuring classic and clear UI. In 1982, the Gleeman Pentaphonic was released as a "sketchpad synth" with a 300-note polyphonic sequencer boasting 5 voices, 3 digitally controlled oscillators per voice, and 8 waveforms per oscillator, all from an 8-bit microprocessor. After DAC, a trio of CEM chips per voice passes the audio: a 3310 envelope generator, 3320 configured as a 24dB low-pass resonant filter, and a 3360 as dual voltage-controlled amplifiers. Each subsequent stage of audio is summed out to a LM348 op amp, stacking saturation through to output. Add performance controls like expression pedal inputs and a joystick for modulation and pitch bend for a performance powerhouse synth. Pentaholic brings the circuit to life in the digital realm for the first time ever on any platform. The concept of a sketchpad synth was the main inspiration for this - getting back to the fundamentals of songwriting and sound design. Pentaholic is meant to inspire ideas faster and prevent Producer Paralysis induced by too many options on the piano roll. Record your idea to the sequencer and play over it - the keyboard takes precedence over the sequencer notes so you can nail down your melody or adjust your groove with the rate and delay of the sequencer. • Authentic 5-Voice Polyphony: True chorusing detune of OSC 2/3 relative to OSC 1's pitch (not BBD!) - oldest note first voice stealing. • 3 Oscillators Per Voice: 8 waveforms CMP 1 CMP 2 3% PULSE 12% Pulse SQR SAW TRI SIN per OSC and a HIGH or LOW octave mode. • One octave of chromatic pitch: transposing progressions or leads just like you put a capo on a guitar. • Component-Level Modeling: The soul of the synth - a 24dB resonant low-pass filter - self-oscillation, and nonlinear harmonic drive of the legendary CEM 3320 filter chip for a distinct bite with each subsequent gain stage pushing into saturation through a LM348 op amp. • Dual ADSR Envelopes: Precise, vintage-snappy envelope generators for exacting control over amplifier and filter contours. Subtle noise and quick snap attacks from resistor-capacitor networks the envelopes pass through. • The Polyphonic Sketchpad Sequencer: A massive 300-note sequencer honoring the original hardware workflow. Recording polyphonic chords in real time and yielding to performance on the keyboard in playback. • Joystick and expression pedal hookups: +/- 5 step pitch bend, modulation of depth of the LFO destination and cutoff expression all from the joystick even more control with expression pedals. Pentaholic honors the original but Gotham Paradise recognizes the value and convenience of advances for performance available from soft-synths, MIDI 2.0 and Bluetooth. • *MIDI Polyphonic Expression - *MIDI Learn - *6 Octave Pitch Change - *Master Volume - *Re-assignable joystick 0 to 5 steps - *Sync'd parameters for glide, sequencer rate/delay, LFO rate - *Game controller performance using scales to the directional pad and ABXY buttons, stick click sequencer recording and playback - Bluetooth MIDI controller Connectivity *Pentaholic is fully functional from download but the following features are accessible with in-app purchase *Sequencer Volume *Keyboard Volume *Master Volume *6 Octave Pitch *Unison *Sync'd Parameters *Recall or Automation of parameters when hosted in a DAW such as Logic for iPad or Garageband *User Preset Saving *MIDI Learn/MIDI CC Parameter Assignment *M.P.E. *Sequencer records and plays back but resets when stopped *MIDI export of recorded Sequences *Game Controller Performance Mode *Reassignable Joystick Pitch bend Keeping Pentaholic's core functionality free for young and new producers who can't afford the full version is important to Gotham Paradise, purchasing the full featured synth helps pay it forward.

About

AllGoRhythmics

Features
Read full description

AllGoRhythmics is a professional rhythm-notation tool for musicians, students, teachers, and composers who want to SEE the rhythm — not just hear it. Most metronome apps give you a click. AllGoRhythmics gives you a living score. Every pattern you build renders in real Bravura music notation — the SMuFL standard used by professional engraving software — with intelligent rest merging, beam grouping, tuplet brackets, and an animated comet playhead that tracks your place through the bar. • REAL MUSIC NOTATION Notes, rests, beams, and brackets render with the Bravura font. Smart rest merging keeps the score clean: four sixteenth rests collapse to one quarter, three to a dotted quarter, and so on. Dorico-style compact spacing keeps even dense bars readable. • TUPLETS, ANY RATIO Place any tuplet straight on the dial — triplets, quintuplets, septuplets, and beyond — engraved with proper brackets and X:Y ratio labels. Nest a tuplet inside a tuplet member when you need it. Notation and playback follow exactly what you build. • LIVE EDIT, ZERO FRICTION Tap any beat to silence it. Drag the time signature to change meters. Tap-tempo a feel by hand. Edit a pattern during playback — your changes land on the next loop. • PROFESSIONAL TIMING & SOUNDS Sample-accurate audio scheduling on a high-precision clock and AVAudioEngine — no drift, no jitter. Choose from eight sound sets, from claps and percussion to marimba, piano, 808, and a clean sine. • TRAINER + PRACTICE LOG (free for everyone) Tap along and get scored against any rhythm, with adjustable tolerance and a results summary. Every session is logged automatically with aggregate stats and a 7-day accuracy trend. • RHYTHM GENERATORS Binary Rhythms builds every 2ⁿ on/off permutation of a beat as one playlist, instantly. The new AMD (Additive / Aksak) generator builds aksak meters from 2s and 3s on a clean dotted grid at a steady pulse — a serious tool for odd-meter practice. • PLAYLISTS, BUILT FOR PRACTICE Chain presets into practice sessions. Lock BPM or RPM across the whole playlist, set per-entry repeats, and play in order, shuffled once, or reshuffled every loop. Sort your playlists, Select-All when adding presets, and Export or Import a whole playlist as a single shareable file. • EXPORT AND SHARE Render any pattern to MIDI or audio and drop it straight into your DAW or notation software. Share presets and whole playlists as files over AirDrop, Messages, or Files — and import what others send you. FREE — full power, no trial timer • All notation, comet playhead, eight sound sets, and audio • Trainer mode and Practice Log, unlimited • Time signatures and subdivisions up to 5 • 5 presets, 2 playlists of 5 entries each • 2 Binary and 2 AMD generations; 5 MIDI and 5 audio exports UNLOCK PRO — one purchase, forever • Time signatures up to 32 and subdivisions up to 16 — quintuplets, septuplets, odd meters • Tuplets with any X or Y above 5, including nested tuplets • Unlimited presets and playlists • Export and import whole playlists as shareable files • Unlimited MIDI and audio export • Unlimited Binary and AMD generation • iCloud sync across your devices WHO IT'S FOR Drummers working through Stick Control or Syncopation, jazz students feeling odd meters, composers sketching rhythms, teachers presenting in class — anyone who's wanted a metronome that shows what they're playing. BUILT FOR THE LONG RUN Made by Çağlayan Yıldız at Puja Music Productions, alongside MathRonome, Aquadrum Pro and Elvin's Numbers. Runs on iPhone, iPad, and Mac. One developer, no ads, no subscriptions, no tracking. Buy it once, own it forever. Privacy policy: https://www.pujamusic.com/privacy Support: support@pujamusic.com

Screenshots

Pentaholic Synth3 screens
AllGoRhythmics4 screens

Verdict

The call

Pentaholic Synth and AllGoRhythmics are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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. Pentaholic Synth sells 1 one-off in-app purchase and AllGoRhythmics sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Pentaholic Synth ships an update every 6 days, AllGoRhythmics every 9 days. The most recent releases landed on September 21, 2026 and September 20, 2026 respectively.

ScorecardNo meaningful differences
Pentaholic Synth versus AllGoRhythmics: the parameters behind the verdict, then further details
ParameterPentaholic SynthAllGoRhythmics
PriceFreeFree
Rating3.8 (6 ratings) — better—
Positive reviews57.1% of reviews—
Number of ratings6 — better—
Update frequencyEvery 6 days — betterEvery 9 days
AdsNoNo
In-app purchasesYesYes
MonetizationFree—
DevicesiPhone, iPadiPhone, iPad
Requires iOS16.0 — better17.0
Further details — not scored
Size21 MB7 MB
Age rating4+4+
DeveloperAndrew StricklandPUJA MUZIK PRODUKSIYON ORGANIZASYON TURIZM TICARET LIMITED SIRKETI

In-app purchases

1 purchases

Pentaholic Synth

One-time1
  • Full Features$28.00
1 purchases

AllGoRhythmics

One-time1
  • AllGoRhythmics Pro$3.99

Questions

Is Pentaholic Synth free?
Pentaholic Synth is free to download, with in-app purchases available.
Is AllGoRhythmics free?
AllGoRhythmics is free to download, with in-app purchases available.
Do Pentaholic Synth or AllGoRhythmics have ads?
Neither Pentaholic Synth nor AllGoRhythmics shows ads.
Which is updated more often, Pentaholic Synth or AllGoRhythmics?
Pentaholic Synth ships an update every 6 days, and AllGoRhythmics every 9 days. Most recently, Pentaholic Synth was updated on September 21, 2026 and AllGoRhythmics on September 20, 2026.

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