Comparison

Seyfert vs TraceSonic

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

Head to head
About

Seyfert

This music effect plugin creates unique echoes that orbit and revolve around the listener. It offers advanced control over pitch, depth, and tone for each echo, with a built-in reverb and EQ for a rich soundscape. It functions as a standalone app or an Audio Unit for music production software.

Highlights
  • Orbital echo generation
  • Spin and Doppler pitch-bend effects
  • 3D binaural imaging
  • Octave shimmer and transpose
  • Per-echo tone and drive
  • Echo-focused reverb and EQ
  • Standalone and AUv3 support
Features
Read full description

Seyfert is a delay unlike your others: every echo spawns at its own place in an orbit around you, and the whole constellation slowly revolves. Turn up Feedback and you don't just add repeats, you spawn more echoes into the orbit, from a single tight slap to a dense, spiralling cloud. Spin revolves the whole field around you. Doppler bends the echoes in pitch as they whirl toward and away. 3D wraps them around your head on headphones. Lift the repeats an octave into crystalline shimmer, drop them a sub-octave for weight, or detune them into a chorus. A lush reverb blooms around the echoes, never the dry signal, so your source stays clear while the repeats dissolve into space. Features: - Orbital echoes, where Feedback sets how many circle you - Spin, from a gentle drift to a full whirl - Doppler pitch-bend as the orbit turns - 3D binaural imaging for headphones - Shimmer and transpose, up or down one octave (octaves, fifths, sub-octaves) - Per-echo Trail tone, tape Wobble, and Drive - Lush reverb applied to the echoes - Full 5-band EQ on the wet signal - Orbit and Ping-Pong patterns, tempo sync - 18 factory presets, plus save your own - Standalone app and Audio Unit (AUv3) for GarageBand, AUM, Logic, and more No accounts, no tracking, no data collected. Everything stays on your device.

About

TraceSonic

Transform images into unique sounds by drawing on a spectral canvas. This app uses brush strokes and imported images to generate additive synthesis, offering a creative way to craft musical instruments and soundscapes.

Highlights
  • Draw on spectral canvas
  • Import images to create sound
  • 128 additive oscillators
  • Multiple brush types
  • Pitch snapping to scales
  • MIDI note input
  • Save custom patches
Features
Read full description

TraceSonic turns pictures into sound. Paint directly on a spectral canvas and hear each mark become part of a playable additive instrument: horizontal position is time, height is pitch, and brightness controls the level of each partial. Start with an empty canvas and draw with solid, soft, textured, tapered, or harmonic brushes. Fill the canvas with generated patterns, or import an image and turn its brightness into sound. Pitch snapping keeps freehand marks on your selected scale. Shape your sound with: • 128 additive oscillators spanning four octaves • Seven classic waveforms and 12 built-in wavetables • Forward, reverse, and ping-pong scanning • Adjustable pass length and tempo-synchronized loops in compatible Audio Unit hosts • MIDI note input for retuning the complete canvas • More than 60 factory patches, including tones, sequences, gestures, textures, drones, and sound effects • User patches that save the canvas and its synthesis settings • Solid, harmonic, soft, textured, and tapered brush families • Undo, redo, erasing, pitch snapping, and scale selection Use TraceSonic as a standalone instrument on iPhone, iPad, and Mac, or load its AUv3 instrument in a compatible host.

Screenshots

Seyfert3 screens
TraceSonic4 screens

Verdict

The call

The clearest difference is price: Seyfert at $1.99 against TraceSonic's $7.99. Seyfert also leads on update cadence (every 2 days vs every 9 days) and 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

CostPrice · In-app purchases · Ads · Monetization

Seyfert costs $1.99 and TraceSonic $7.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Seyfert ships an update every 2 days, TraceSonic every 9 days. The most recent releases landed on October 17, 2026 and October 7, 2026 respectively.

Scorecard3 real differences · 7 level
Seyfert versus TraceSonic: the parameters behind the verdict, then further details
ParameterSeyfertTraceSonic
Price$1.99 — better$7.99
Rating5.0 (2 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings2 — better—
Update frequencyEvery 2 days — betterEvery 9 days
AdsNoNo
In-app purchasesNoNo
MonetizationPaidPaid
DevicesiPhone, iPad, iPodiPhone, iPad, Mac
Requires iOS15.0 — better17.0
Further details — not scored
Size3 MB7 MB
Age rating4+4+
DeveloperKonstantin Torsten Schutzr6 appz

In-app purchases

None

Seyfert

No in-app purchases

None

TraceSonic

No in-app purchases

Questions

Is Seyfert free?
Seyfert costs $1.99, with no in-app purchases.
Is TraceSonic free?
TraceSonic costs $7.99, with no in-app purchases.
Do Seyfert or TraceSonic have ads?
Neither Seyfert nor TraceSonic shows ads.
Which is updated more often, Seyfert or TraceSonic?
Seyfert ships an update every 2 days, and TraceSonic every 9 days. Most recently, Seyfert was updated on October 17, 2026 and TraceSonic on October 7, 2026.

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