Comparison

GSDSP MagicBlur vs Tandem MIDI Canvas

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

Head to head
About

GSDSP MagicBlur

Transform audio into lush pads, frozen textures, or spectral motion with this multi-curve spectral blur and freeze effect. Shape different parts of the spectrum with independent blur times, and explore evolving drones and unique spectral transitions.

Highlights
  • Frequency-dependent spectral blur
  • Multi-curve spectral freeze
  • Morphing and frame selection
  • Reverse morph direction
  • Envelope and pitch shifting
  • Modulation system
  • AUv3 audio effect plugin
Features
Read full description

Turn any sound into lush pads, frozen textures, or drifting spectral motion with this multi-curve spectral blur and freeze effect. Frequency-Dependent Blur MagicBlur is a multi-curve spectral blur and freeze processor designed for transforming audio into pads, overtone glissandi, reversed textures, and glitch-like movements. Apply separate blur times per frequency or frequency range, then mix, modulate, and spread them to explore anything from subtle, washed-out ambience to extreme spectral experimentation. How Spectral Blur Works Incoming audio is analyzed into fast-moving spectral frames, each representing the frequency content of a small slice of sound. Instead of playing every frame in sequence, MagicBlur lets you pick frames at defined intervals and morph smoothly toward the next one. The Blur Time sets how gradually frequencies transition — and because MagicBlur supports independent blur times per frequency, you can shape different parts of the spectrum with fine-grained control. Freeze, Reverse & Transform Disable morphing to create a spectral freeze, holding each frame until the next is selected. Reverse the morph direction, apply envelopes, or shift pitch to create evolving drones and unique spectral transitions. Combined with MagicBlur’s modulation system, these tools unlock a wide range of expressive and experimental sound design possibilities. MagicBlur is an AUv3 audio effect plugin compatible with Logic Pro, AUM, Cubasis, GarageBand and many more. A Desktop version is also available for Windows and macOS (VST3 / AU / AAX). More information here: https://gs-dsp.com/products

About

Tandem MIDI Canvas

Design and build custom MIDI controllers on your iPhone or iPad. Save presets, perform with motion and snapshots, and collaborate in real-time with others. Features smart snapping, layout templates, and morphing between states.

Highlights
  • Build custom MIDI controller layouts
  • Save and recall presets
  • Perform with motion and snapshots
  • Real-time collaboration
  • Smart MIDI setup
  • Morphing between states
Features
Read full description

Tandem turns your iPhone or iPad into a customizable MIDI controller you can actually trust on stage. Build your own layouts in minutes, map them fast, save reusable presets, and perform with powerful features like snapshots, morphing, motion control, and real-time collaboration. Whether you’re producing in the studio, playing live, teaching, or building DJ performance layouts, Tandem gives you a fast, flexible way to create controllers that fit your workflow instead of forcing you into someone else’s. BUILD THE CONTROLLER YOU ACTUALLY WANT Create custom layouts with knobs, faders, XY pads, drum pads, buttons, toggles, momentary buttons, endless encoders, transport controls, and gyroscope-based motion. Start from a blank canvas or jump in quickly with templates for mixers, synth performance rigs, drum layouts, dashboards, and more. Save your setups as presets and reuse them whenever you want. FAST WORKFLOW, BUILT FOR REAL USE Tandem is designed to help you build quickly and perform confidently. Features include: • Smart snapping and responsive grids • Spacing tools for clean layouts • Focus Mode for precision editing • Fast MIDI Learn • Helpful hints and a replayable tutorial walkthrough • Smart MIDI setup so new controls can automatically map to unused assignments SHAPESHIFT YOUR PERFORMANCE This is where Tandem becomes more than a controller. Save up to 8 snapshots of an entire layout, including all control values. Instantly jump between states or smoothly interpolate between them using a Morph Driver. It’s perfect for live performance, evolving sound design, transitions, and expressive macro control. RANDOMIZATION YOU CAN PLAY Map Randomize to a button or pad and generate musical variation on demand. Great for experimentation, happy accidents, sound design, and live moments that feel alive instead of static. COLLABORATE IN REAL TIME With Tandem Mode, multiple devices can share and control the same layout together. Host or join a session and collaborate live across devices—ideal for bands, classrooms, writing rooms, rehearsals, and shared performance setups. Locally and Remotely via SharePlay! DJ AND PERFORMANCE READY Tandem isn’t just for synths and studio control. It can also power performance-oriented layouts for transport, mixing, browser access, FX control, looping, hot cues, waveforms, and more. Build focused pages for the way you actually perform. THEMES THAT LOOK GOOD AND HOLD UP ON STAGE Use high-contrast, stage-ready themes or create your own look. Tandem includes a redesigned Theme Maker plus import/export support for themes and preset packages so you can share setups and visual styles. FLEXIBLE CONNECTIVITY Connect with: • USB-C • Bluetooth MIDI • Wi-Fi Background processing helps keep MIDI flowing while you work. Tandem isn’t just a MIDI controller app. It’s a controller builder with performance features you usually only get from dedicated hardware—wrapped in a workflow that’s fast, modern, and easy to come back to. Design your ideal controller, save your favorite setups, morph entire layouts, and perform anywhere—solo or together.

Screenshots

GSDSP MagicBlur3 screens
Tandem MIDI Canvas4 screens

Verdict

The call

The clearest difference is price: Tandem MIDI Canvas at $14.99 against GSDSP MagicBlur's $29.99. GSDSP MagicBlur's advantage is iOS requirement (13.0 vs 17.0). On rating, review sentiment, ratings volume and update cadence 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

GSDSP MagicBlur costs $29.99 and Tandem MIDI Canvas $14.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.9 for GSDSP MagicBlur against 5.0 for Tandem MIDI Canvas. Both are backed by a comparable volume of ratings — 8 and 3 respectively. Written reviews split almost evenly too, at 100% and 100% positive.

UpkeepUpdate frequency

GSDSP MagicBlur ships an update every 6 weeks, Tandem MIDI Canvas every 5 weeks. The most recent releases landed on October 25, 2026 and October 10, 2026 respectively.

Scorecard2 real differences · 8 level
GSDSP MagicBlur versus Tandem MIDI Canvas: the parameters behind the verdict, then further details
ParameterGSDSP MagicBlurTandem MIDI Canvas
Price$29.99$14.99 — better
Rating4.9 (8 ratings)5.0 (3 ratings) — better
Positive reviews100.0% of reviews100.0% of reviews
Number of ratings8 — better3
Update frequencyEvery 6 weeksEvery 5 weeks — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaidPaid
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS13.0 — better17.0
Further details — not scored
Size74 MB24 MB
Age rating4+4+
DeveloperGustav ScholdaMitchell Cohen

Customer experience

GSDSP MagicBlur

All ratings9 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews3 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Tandem MIDI Canvas

All ratings3 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews3 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

GSDSP MagicBlur

No in-app purchases

None

Tandem MIDI Canvas

No in-app purchases

Questions

Is GSDSP MagicBlur free?
GSDSP MagicBlur costs $29.99, with no in-app purchases.
Is Tandem MIDI Canvas free?
Tandem MIDI Canvas costs $14.99, with no in-app purchases.
Which has better reviews, GSDSP MagicBlur or Tandem MIDI Canvas?
Tandem MIDI Canvas is rated higher. GSDSP MagicBlur averages 4.9 out of 5 from 8 ratings, while Tandem MIDI Canvas averages 5.0 from 3 ratings.
Do GSDSP MagicBlur or Tandem MIDI Canvas have ads?
Neither GSDSP MagicBlur nor Tandem MIDI Canvas shows ads.
Which is updated more often, GSDSP MagicBlur or Tandem MIDI Canvas?
GSDSP MagicBlur ships an update every 6 weeks, and Tandem MIDI Canvas every 5 weeks. Most recently, GSDSP MagicBlur was updated on October 25, 2026 and Tandem MIDI Canvas on October 10, 2026.

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