Harmonitron vs Bliss AUv3 Sampler
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Harmonitron
This app creates a rich, swirling harmonic tremolo effect, distinct from standard volume pulsing. It splits sound into low and high bands, modulating them in opposite phases for a lush, phaser-like character. Apply it to various instruments or full mixes as a standalone app or AUv3 effect.
- True harmonic tremolo with anti-phase modulation
- Voice control for morphing between classic and harmonic tremolo
- Split & Tilt for band crossover and balance
- Tube Drive and tone shaping
- Adjustable Rate and LFO Shapes
- Tempo Sync with musical note divisions
- Stereo Spread for auto-pan and width
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Harmonitron is a harmonic tremolo. The rich, swirling amp "vibrato" made famous by early-1960s brownface amplifiers. A normal tremolo just pulses your volume up and down. A harmonic tremolo goes deeper: it splits your sound into a low band and a high band, then sweeps them in OPPOSITE phase. As the lows swell, the highs dip and back again. That contrary motion is what gives Harmonitron its lush, watery, almost phaser-like character that an ordinary tremolo can't reach. Turn the Voice control and the effect morphs smoothly from a classic in-phase tremolo all the way to a full harmonic swirl. Drop it on guitars, keys, synths, pads, drums, or a whole mix. Standalone, or as an Audio Unit (AUv3) effect inside GarageBand, AUM, Logic, and other hosts. THE SOUND • True harmonic tremolo: anti-phase modulation of a low and high band • Voice: morph continuously from classic tremolo to full harmonic swirl • Split & Tilt: place the crossover and balance the two bands • Tube Drive and tone shaping for warmth and grit MOVEMENT • Rate from a slow tide to a fast flutter, shown in BPM • LFO Shape: sine, triangle, square, and ramp with adjustable edge Slope • Tempo Sync that locks to your project and lands on the beat, with musical note divisions from 1/1 to 1/32 (dotted and triplet) • Stereo Spread for auto-pan and rotary-style width HANDS-ON • A living hero orb whose two halves breathe in opposite phase — drag it to set Depth, tap to bypass • Grouped, color-coded controls: Motion, Sync, Harmonic, Stereo, Drive, Output • Factory presets: Brownface, Rotary Swirl, Slow Tide, Sync Chop, Wide Harmonic and more — plus your own saved presets PLUGIN & STANDALONE • Full AUv3 audio-effect support with host presets and parameter automation • Runs on iPhone, iPad, and Mac • Standalone mode with a built-in demo pad, live microphone input, or import a song and export the processed result
Bliss AUv3 Sampler
This app transforms any sound into a playable synth instrument. It allows you to host and resample AUv3 instruments, offering deep modulation, studio effects, and extensive import capabilities for creating expressive music on the go.
- Host and resample AUv3 instruments
- Deep modulation and dual filters
- Full MPE expression support
- 7 studio effects with 8x oversampling
- 1 GB factory library
- Import SFZ, SoundFont2, EXS, Kontakt, Akai, and more
- Built-in wave editor and loop modes
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Bliss brings desktop-class sampling to iOS. The same desktop engine now in your hands, on stage, on the couch, anywhere. Load a sample, play an instrument. Bliss turns any sound into a rich, expressive, playable synth with a workflow built for speed and a sound built to impress. — HOST & RESAMPLE ANY AUv3 — Load any AUv3 instrument right inside Bliss and capture it into your own multi-zone instrument. Auto-sample across the keyboard with velocity layers, then play it back with zero CPU overhead — even offline. Export the result as standard SFZ or Bliss ZBP, ready to reuse anywhere. Turn any synth on your iPad into a lightweight, playable sampled instrument. — A REAL SAMPLER ENGINE — • Up to 64 voices of polyphony • Pristine SINC 128 interpolation (512-point mode for mastering-grade playback) • Mono, poly, legato with glide, and 4-voice unison with detune • NEON-optimized, native Apple Silicon performance — DUAL FILTERS — • Two 24 dB/oct filters: lowpass, highpass, bandpass, notch, peaking • Zipper-free cutoff, resonance and drive • Velocity and keyboard tracking — DEEP MODULATION — • Independent amp, mod, filter and LFO envelopes • Two syncable LFOs with configurable phase • Parameter morphing for evolving, living sounds • 8 assignable macro knobs — automatable from your DAW — FULL MPE EXPRESSION — Per-note pitch bend, timbre and pressure. Auto-configures with ROLI Seaboard, LinnStrument and Expressive E Osmose. — 7 STUDIO EFFECTS — Multiband limiter, soft clipper, stereo rotation, chorus, delay and reverb with 8x oversampling — plus per-slot bit reducer, phaser and distortion. Per-zone sends. — 1 GB FACTORY LIBRARY — Start making music instantly with 100+ ready-to-play instruments — keys, pads, basses, guitars, strings, winds, percussion and more. A free 1 GB download, available in-app. — IMPORT EVERYTHING — Bliss speaks every sampler dialect: SFZ, SoundFont2, EXS, Kontakt NKI (1–4), Akai S1000/S3000/S5000-6000, XPM Keygroups, Renoise and CUE sheets. Audio in WAV, AIFF, FLAC, OGG and MP3. — BUILT-IN EDITING — • Full wave editor with undo, 1:1 zoom, stereo/independent channel selections • Loop modes: forward, bidirectional, backward, crossfade, trim • Cut, paste, mix paste, fades, normalize • Visual key mapper for zones, velocity ranges and root keys • Tempo and transient auto-slicing — AUv3 + STANDALONE — Run Bliss standalone or as an Audio Unit v3 inside AUM, GarageBand, Cubasis, Logic and any AUv3 host. Fully automatable, resizable, and ready for your rig.
Screenshots
Verdict
The clearest difference is price: Harmonitron at $2.99 against Bliss AUv3 Sampler's $19.99. Bliss AUv3 Sampler's advantage is iOS requirement (15.0 vs 17.0). On ads, in-app purchases, monetization model 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
Harmonitron costs $2.99 and Bliss AUv3 Sampler $19.99 up front. Neither carries in-app purchases, so what you see is what you pay.
| Parameter | Harmonitron | Bliss AUv3 Sampler |
|---|---|---|
| Price | $2.99 — better | $19.99 |
| Rating | 5.0 (2 ratings) — better | — |
| Positive reviews | — | 0.0% of reviews |
| Number of ratings | 2 — better | — |
| Update frequency | — | Every 3 days |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Paid |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 17.0 | 15.0 — better |
| Further details — not scored | ||
| Size | 3 MB | 26 MB |
| Age rating | 4+ | 4+ |
| Developer | Konstantin Torsten Schutz | DiscoDSP LLC |
Customer experience
Harmonitron
Bliss AUv3 Sampler
In-app purchases
Harmonitron
No in-app purchases
Bliss AUv3 Sampler
No in-app purchases





