Comparison

Delay Line vs MESA Synth AUv3

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

Head to head
About

Delay Line

This audio effect app offers a high-quality digital delay with smooth parameter control for musical echoes. It's designed to add depth and space to your sound without unwanted noise.

Highlights
  • High-quality digital delay
  • Smooth parameter interpolation
  • Feedback control
  • Musical echoes
  • Linear interpolation for delay time
  • Comprehensive parameter smoothing
Features
Read full description

A high-quality digital delay effect with smooth parameter interpolation and feedback control. This delay provides clean, musical echoes perfect for adding depth and space to your audio. The delay uses linear interpolation for smooth delay time changes and includes comprehensive parameter smoothing to eliminate zipper noise during real-time parameter adjustments.

About

MESA Synth AUv3

This music creation tool transforms visuals into sound by rendering shaders and images into wavetables. It offers a powerful synthesis engine, extensive sound-shaping capabilities, and a full effects rack, all controllable through light and visual input.

Highlights
  • Visual-to-audio wavetable synthesis
  • Unison oscillator stack with sub-oscillator
  • Zero-delay-feedback filter
  • Vision panel for sound shaping with light
  • 26 stackable visual modifiers as audio effects
  • 8-stage stereo FX rack
  • Sampler mode with auto pitch-tracking
Features
Read full description

MESA is a wavetable synthesizer unlike any other — it turns visuals into sound. Drop in a shader or a .vkograph and MESA renders it offscreen, reads the light across the image, and turns that into a wavetable you play. The picture literally becomes the oscillator — and the same visual keeps living behind your keys, reacting to every note. No other synth works like this. Behind the magic is a complete, serious instrument: THE ENGINE • 64-frame wavetables, FFT mip-banked for clean, alias-free playback everywhere • Unison oscillator stack with detune, spread, and a sub-oscillator • Zero-delay-feedback filter — cutoff, resonance, drive, self-oscillating • Full ADSR envelope, portamento glide, and a dedicated pitch envelope SHAPE THE SOUND WITH LIGHT • Vision panel: choose the scanline, weight color channels, bend the brightness curve, sweep time — one shader, a thousand timbres • 33 color palettes that reshape the tone, not just the look • VFX chain: 26 stackable visual modifiers, each one also an audio effect A FULL STUDIO • 3-slot modulation matrix with 2 LFOs, velocity, and mod wheel • 8-stage stereo FX rack: tape, wow & flutter, chorus, delay, reverb, lo-fi, tape-stop • Sampler mode — load any audio, auto pitch-tracked across the keys • Arpeggiator, Ableton Link, and MIDI Learn on nearly every control BUILT FOR YOUR WORKFLOW • AUv3 plug-in AND standalone app — one purchase, iOS + macOS • iCloud sync — build a patch on your Mac, it's ready on your iPhone • Categorized preset browser with import/export and full patch recall

Screenshots

Delay Line4 screens
MESA Synth AUv34 screens

Verdict

The call

The clearest difference is rating: Delay Line at 5.0 against MESA Synth AUv3's 3.0. Delay Line also leads on price ($1.99 vs $8.99). On ratings volume, ads, in-app purchases and monetization model 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

Delay Line costs $1.99 and MESA Synth AUv3 $8.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

Delay Line holds the better App Store score, 5.0 against 3.0. Both are backed by a comparable volume of ratings — 2 and 2 respectively.

Scorecard2 real differences · 8 level
Delay Line versus MESA Synth AUv3: the parameters behind the verdict, then further details
ParameterDelay LineMESA Synth AUv3
Price$1.99 — better$8.99
Rating5.0 (2 ratings) — better3.0 (2 ratings)
Positive reviews—100.0% of reviews
Number of ratings22
Update frequency—Every 2 months
AdsNoNo
In-app purchasesNoNo
MonetizationPaidPaid
DevicesiPhone, iPadiPhone, iPad, Mac — better
Requires iOS17.0 — better18.4
Further details — not scored
Size7 MB10 MB
Age rating4+4+
DeveloperCallback Audio, LLCJuan Maguid

Customer experience

Delay Line

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

MESA Synth AUv3

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews2 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Delay Line

No in-app purchases

None

MESA Synth AUv3

No in-app purchases

Questions

Is Delay Line free?
Delay Line costs $1.99, with no in-app purchases.
Is MESA Synth AUv3 free?
MESA Synth AUv3 costs $8.99, with no in-app purchases.
Which has better reviews, Delay Line or MESA Synth AUv3?
Delay Line is rated higher. Delay Line averages 5.0 out of 5 from 2 ratings, while MESA Synth AUv3 averages 3.0 from 2 ratings.
Do Delay Line or MESA Synth AUv3 have ads?
Neither Delay Line nor MESA Synth AUv3 shows ads.

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