Galaxy Brain vs Chord Freeze
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Galaxy Brain
This app offers advanced audio manipulation with a frequency shifter and stereo delay. Create a wide range of effects, from lush choruses to choppy textures and sci-fi sounds, with flexible modulation options and optional hardware clipping for added grit.
- Frequency shifting with adjustable range
- Stereo delay with tempo sync and ping-pong
- Multiple modulation sources (LFO, envelope, sequencer)
- Optional hardware clipping for drive and saturation
- Morph settings for smooth parameter transitions
- Auto bypass and HQ mode for optimized performance
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Galaxy Brain is a frequency shifter and delay combo ready to take any sound into outer space. With easy stereo controls, three modulation sources, and optional hardware clipping, things can go intergalactic very quickly. From thick chorus effects to choppy AM textures to space-laser SFX, it's all packed inside. Frequency Shifter - Range settings from 5 Hz to 5 kHz, each with its own character - Direction mixer enables tremolo and ring modulation effects - Modulate shift amount with LFO, envelope follower, and sequencer - Freely mixable modulation sources Stereo Delay - Free or tempo-synced delay time - Continuous ping-pong and LR delay time skew - Tone-shaping filters in the feedback path - Wet signal ducking - Adjustable glide time between delay values, up to 10 seconds Modulation - Stereo LFO with nine waveforms, warp, and swing - Envelope follower with optional sidechain input - Eight-step sequencer - Repeatable Random engine for consistent bounces Optional Hardware Clipping - Add drive and saturation at the output stage - Internal gain compensation for louder output at high settings Core Features - Morph Settings for smooth transitions between two complete configurations - Auto Bypass saves CPU when input is silent - AB settings comparison - HQ mode with 4x oversampling and ADAA - One-click loudness matching - All parameters automatable with precise playback - Light and dark interface modes - Internal undo/redo - Standalone app includes support, manual links and in-app purchase options for license purchase Two-week trial included, one-time purchase for full unlock. Unlock your plug-in via in-app purchase from the standalone app or activate in the plug-in using an existing desktop license. Your in-app purchase activates the plug-in on all of your iOS devices. Owners can claim a crossgrade code in the standalone app to receive a discount on a desktop license. Check out our YouTube: https://www.youtube.com/@sketchaudio Read the manuals: https://sketchaudio.com/manuals/
Chord Freeze
This app provides infinite sustain for your guitar, allowing you to play scales and leads over a held chord. It captures your guitar's authentic sound without using synths or samples, offering a seamless, tick-free experience. Designed for ease of use mid-practice, it works with your existing audio setup.
- Infinite chord sustain
- Captures authentic guitar sound
- Granular engine for seamless hold
- Simple interface with one button and three knobs
- Hands-free Auto-Freeze option
- Works with audio interfaces or built-in mic
- Local audio processing, no tracking
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You want something to solo over. Your options are a looper pedal you have to buy and carry, a backing track that locks you into someone else's key and tempo, or a second guitarist who is not currently in your living room. Chord Freeze is the fourth option. Play a chord. Tap Freeze. It holds — indefinitely, unchanging — while you play scales, modes, and leads on top of it. Tap again to release, and freeze a new chord. IT SOUNDS LIKE YOUR GUITAR Because it is your guitar. Chord Freeze captures the sound coming in and sustains that: your pickups, your amp, your pedals, your hands. It isn't a synth patch doing an impression of a guitar, and it isn't a sampled instrument. The chord you hear held is the chord you just played. Under the hood it's a granular engine rather than a looped buffer, which is why it doesn't tick, stutter, or breathe the way a short loop does. There's no seam to hear, however long you hold it. SIMPLE ENOUGH TO USE MID-PRACTICE One big button. Three knobs. Two switches. No menus, no presets, no project files. • DELAY — how long Auto-Freeze waits after your strum settles • WINDOW — how much of the chord it captures • VOLUME — the frozen chord's level against your live playing Freeze is retroactive: it grabs the sound that was already ringing just before you tapped, so you strum, let it settle, then tap. No countdown, no timing it perfectly. HANDS-FREE IF YOU WANT IT Turn on Auto-Freeze and it captures by itself once a chord has been sustaining — no reaching for the phone mid-exercise. Set DELAY to pick the moment it grabs, and keep both hands on the guitar. WORKS WITH WHAT YOU HAVE Plug in a USB or Lightning interface — iRig, Focusrite, anything class-compliant — and Chord Freeze switches to it automatically for a clean direct signal. No interface? The built-in mic works fine; just use headphones. TRY IT PROPERLY FIRST Twenty-five freezes, free, with nothing held back — the full app, not a limited demo. If you keep it, a one-time in-app purchase unlocks unlimited freezing forever. No subscription, no account, nothing to renew, no ads. Even after the trial, live monitoring, all the controls, and the help screen keep working. YOUR AUDIO STAYS ON YOUR DEVICE Chord Freeze processes everything locally. Nothing is recorded to disk, nothing is uploaded, and there is no analytics or tracking of any kind. The microphone is used to hear your guitar and nothing else. REQUIRES iPhone or iPad running iOS 17 or later. Headphones or an audio interface are strongly recommended — the built-in speaker and built-in mic together will feed back, so Chord Freeze mutes live monitoring automatically in that configuration.
Screenshots
Verdict
The clearest difference is update cadence: Galaxy Brain at every 3 weeks against Chord Freeze's every 2 months. Galaxy Brain also leads on iOS requirement (14.0 vs 17.0). On price, 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
Both are free to download. Galaxy Brain sells 2 one-off in-app purchases and Chord Freeze sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
Galaxy Brain ships an update every 3 weeks, Chord Freeze every 2 months. The most recent releases landed on November 5, 2026 and November 1, 2026 respectively.
| Parameter | Galaxy Brain | Chord Freeze |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (3 ratings) — better | — |
| Positive reviews | — | 0.0% of reviews |
| Number of ratings | 3 — better | — |
| Update frequency | Every 3 weeks — better | Every 2 months |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 14.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 13 MB | 2 MB |
| Age rating | 4+ | 4+ |
| Developer | Sketch Audio, LLC | David Legrand |
Customer experience
Galaxy Brain
Chord Freeze
In-app purchases
Galaxy Brain
- Two-week TrialFree
- Full Unlock$9.99
Chord Freeze
- Unlimited Freezes$6.99









