Comparison

Jynth vs Rhythm Ace

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

Head to head
About

Jynth

This music app recreates the warm, analog sound of a classic synth with a unique physics engine for organic soundscapes. Explore vintage tones, advanced modulation, and innovative performance features like assigning different presets to individual notes.

Highlights
  • Analog-style signal chain
  • Physics-driven modulation
  • Preset Per Note & Preset Ribbon
  • 5 studio-grade effects
  • AUv3 plugin support
  • MIDI controller integration
Read full description

Meet Jynth, the new synth by Fingerlab for iPhone, iPad and Mac — the warm, analog soul of the iconic Roland Juno-106, reimagined with a groundbreaking Physics Engine for organic, living sound. Designed for leads, basses, keys & pads, Jynth delivers that classic vintage character you love — housed in a meticulously crafted, photo-realistic interface that looks as good as it sounds. Shape your sound with a full analog-style signal chain: From the dual oscillators and resonant VCF filter to the ADSR envelope, LFO and built-in arpeggiator — every parameter has been carefully tuned to feel as musical as it sounds. Go further with 6 studio-grade effects: Tremolo, Flanger, Overdrive, Chorus, Delay & Reverb — stack them to build rich, evolving textures and cinematic soundscapes. Bring your presets to life with the Physics Engine: This is where Jynth truly stands apart. Assign up to 8 physics-driven modulations to any synth or effect parameter. Gravity, bounce, impulse, angle — let the laws of physics shape your sound in ways no LFO ever could. Every preset becomes unique, every performance feels alive. Explore new sonic territory with Preset Per Note & Preset Ribbon: Inspired by the music of Aphex Twin, Preset Per Note lets you assign a different preset to each key of the piano keyboard — so every note triggers an entirely different sound. Take it further with Preset Ribbon: select a collection of presets and glide between them in real time, simply by sliding your finger across the ribbon. A new way to perform. A new way to play. Play anywhere, plug into anything: Jynth is universal — one purchase gives you the full experience on iPhone, iPad and Mac. Use it as a standalone app or load it as an AudioUnit (AUv3) plugin directly inside your favorite DAW. Pair it with your MIDI controller via MIDI In support, and your sound is always there — even when your screen is off, thanks to Audio Background mode. Unlock the Full Version to access preset creation, all factory presets, FX, Physics Engine, Randomizer, Undo, Preset Per Note & Preset Ribbon. Features: Synth Engine • VCO with Pulse Width Modulation — Square, Saw, Sub & Noise oscillators • High-Pass Filter • VCF Filter with Frequency, Resonance, Envelope, LFO & Keyboard tracking • LFO with Rate, Delay & Depth • VCA Gate mode • Full ADSR Envelope • Glide (Portamento) • Arpeggiator with Tempo, Pattern, Step Division, Octave Range & Gate Effects • 6 FX: Tremolo, Flanger, Overdrive, Chorus, Delay & Reverb Physics Engine • 8 independent physics-based modulation scenes • Per-stage controls: Speed, Gravity, Bounce, Impulse, Angle & more • Assignable to any synth or FX parameter Preset Per Note • Assign a different preset to each key of the keyboard • Autofill with random presets by category Preset Ribbon • Select a collection of presets and glide between them in real time • Switch sounds on the fly while playing • Perfect for live performance Workflow • 100 factory presets • Preset Randomizer • Preset Import & Export • Undo • Live Audio Recording • Full MIDI & MIDI Mapping • Audio Background support • AudioUnit (AUv3) support • Universal: iPad, iPhone & Mac Questions or feedback? We'd love to hear from you: contact@fingerlab.net Enjoy Jynth! Fingerlab Team

About

Rhythm Ace

This app is a faithful simulator of a vintage 1967 drum machine, recreating its authentic analog sounds and rhythm presets. It allows for real-time synthesis of percussion, pattern layering, and individual voice muting for unique groove creation.

Highlights
  • Faithful vintage drum machine simulation
  • Real-time synthesized analog sounds
  • 16 classic rhythm presets
  • Authentic pattern combining
  • Individual voice cancel controls
  • Precision tempo control
Features
Read full description

Rhythm Ace is a faithful simulator of the Ace Tone FR-1 — one of the earliest consumer drum machines, built in Japan in 1967 and the ancestor of the legendary Roland rhythm machines. Every sound is synthesized in real time using classic transistor-style audio circuits — no samples, no loops. Just pure, characterful analog-era percussion the way it was meant to sound. Eight synthesized voices Bass Drum · Snare · Low Conga · High Conga · Cymbal · Claves · Cowbell · Maracas 16 classic rhythm presets Waltz, Bossa Nova, Samba, Rock, Swing, Foxtrot, and more — all faithfully recreated from the original FR-1 diode matrix. Authentic pattern combining Select multiple rhythm buttons to layer patterns exactly like the original hardware — the diode matrix OR-combines their steps, letting you build complex grooves from simple presets. Voice cancel controls Mute individual instruments on the fly with the dedicated cancel buttons, just like the original panel. Precision tempo control Large rotary knob for natural, tactile BPM adjustment. Sample-accurate scheduling Built on a lookahead audio clock for tight, rock-solid timing — no drift, no jitter. Whether you're a vintage gear enthusiast, a music producer hunting for retro textures, or just curious what the dawn of the drum machine sounded like, Rhythm Ace brings a slice of music history to your iPhone.

Screenshots

Jynth4 screens
Rhythm Ace1 screens

Verdict

The call

The clearest difference is review sentiment: Jynth at 71% against Rhythm Ace's 0%. Jynth also leads on rating (4.1 vs 2.0) and update cadence (every 2 weeks vs every 2 months). Rhythm Ace's advantage is in-app purchases (none vs 1). On price 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. Jynth sells 1 one-off in-app purchase. Rhythm Ace asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Jynth holds the better App Store score, 4.1 against 2.0. That said, the two scores are not equally well evidenced: Jynth has 12 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 71% of Jynth's written reviews are positive against 0% of Rhythm Ace's.

UpkeepUpdate frequency

Jynth ships an update every 2 weeks, Rhythm Ace every 2 months. The most recent releases landed on October 10, 2026 and October 8, 2026 respectively.

Scorecard8 real differences · 2 level
Jynth versus Rhythm Ace: the parameters behind the verdict, then further details
ParameterJynthRhythm Ace
PriceFreeFree
Rating4.1 (12 ratings) — better2.0 (1 ratings)
Positive reviews71.4% of reviews — better0.0% of reviews
Number of ratings12 — better1
Update frequencyEvery 2 weeks — betterEvery 2 months
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPad, iPod, Mac — betteriPhone
Requires iOS15.6 — better18.0
Further details — not scored
Size33 MB6 MB
Age rating4+4+
DeveloperFingerlabTero Aarnio

Customer experience

Jynth

All ratings12 ratings
Positive75.0%
Neutral8.3%
Negative16.7%
Written reviews7 reviews
Positive71.4%
Neutral14.3%
Negative14.3%

Rhythm Ace

All ratings1 ratings
Positive0.0%
Neutral0.0%
Negative100.0%
Written reviews1 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

In-app purchases

1 purchases

Jynth

One-time1
  • Full Version$9.99
None

Rhythm Ace

No in-app purchases

Questions

Is Jynth free?
Jynth is free to download, with in-app purchases available.
Is Rhythm Ace free?
Rhythm Ace is free to download, with no in-app purchases.
Which has better reviews, Jynth or Rhythm Ace?
Jynth is rated higher. Jynth averages 4.1 out of 5 from 12 ratings, while Rhythm Ace averages 2.0 from 1 ratings.
Do Jynth or Rhythm Ace have ads?
Neither Jynth nor Rhythm Ace shows ads.
Which is updated more often, Jynth or Rhythm Ace?
Jynth ships an update every 2 weeks, and Rhythm Ace every 2 months. Most recently, Jynth was updated on October 10, 2026 and Rhythm Ace on October 8, 2026.

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