Comparison

Drum Surgeon AUv3 Plugin vs ChordLibre

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

Head to head
About

Drum Surgeon AUv3 Plugin

This audio plugin is a dynamics and transient processor for fine-tuning drum sounds within DAWs. It allows users to shape and boost drum kits for better punch and clarity without clipping, offering features like saturation, EQ, and filtering.

Highlights
  • Dynamics and transient processing
  • Saturation control
  • 8-band graphic EQ
  • LP/HP filtering
  • Attack & Hold controls
  • Intensity control up to 200%
  • Limiter/clipper
Read full description

DrumSurgeon is an AUv3 plugin designed for use in your favourite DAW such as AUM, Logic, Loopy Pro, Cubasis or GarageBand etc. Drum surgeon is a dynamics / transient processor specifically designed for fine tuning your drums. So your drum sounds are lacking punch and lost in the mix? This is where Drum Doctor can really help by allowing you to literally shape and boost your kit to break through the mix safetly and without clipping. The attack or onset of a sound is known as its transient. By controlling the level, shape and duration of these sounds, you change the dynamics of a drum track to achieve that perfect tightness, while boosting them to give your kick the right punch and snare the right amount of bite. Use the saturation to overdrive your mix prior to shaping. This can drastically change the character of some drum sounds at the filtering stage. The single LP/HP filtering knob lets you quickly find the tone that suits combined with the 8 band EQ to define your sound. Finally the intensity knob allows you to control the level of dynamics applied to your mix. Automate this in real time when you want to relax or accentuate your drum track during your song. Features: ○ Supports factory and user presets. ○ Add bite using the Attack & Hold controls. ○ Use the Release to get extra dynamic range. ○ Both Attack and Release can be inverted to transform the dynamics. ○ LP/HP filtering. ○ Saturation control. ○ 8 Band Graphic EQ. ○ Real-time gain display. ○ Intensity control to amplify the effect up to 200%. ○ Limiter/clipper for driving your sound to the max. ○ Auto ranging option for graphing.

About

ChordLibre

Features
Read full description

Transform your performance with ChordLibre – the free, essential PDF chord and sheetmusic manager designed for musicians who value simplicity, speed, and reliability. - Import chord sheets directly from Files, Mail, or other apps - Automatic filename parsing extracts song title and artist- - Quick metadata editing ensures accurate organisation Smart Organisation - Browse by title, artist, or recently opened - Build unlimited setlists for gigs, rehearsals, and teaching - Group songs into sets within each setlist for flexible performance planning Performance Mode - Full-screen PDF viewing optimised for musicians - Swipe smoothly between songs in a setlist - Keep the screen awake during performance - Clean, distraction-free interface for focus on the music Built for Musicians, by a Musician - Lightning-fast search and filtering across your library - Duplicate detection prevents clutter - Switch between grid or list views to suit your workflow - Context menus provide quick access to common song actions Extras - Smart tips banner with useful hints for new users - Optional one-time tip jar (£0.99) to remove hints and support development - Native iOS interface that feels fast and intuitive - Share files between devices via standard iOS methods ChordLibre is designed to support solo performers, bands, and music teachers who rely on chord sheets and lead sheets. It eliminates the need for paper binders and avoids the complexity of cloud-dependent systems. With local storage only, your music remains private, secure, and accessible wherever you take your iPad or iPhone. Ideal for guitarists, pianists, ukulele players, and any musician who works with chord-based material. No subscriptions No accounts required No cloud lock-in Just your music, your way. Perfect for: - Guitarists and pianists building setlists for gigs - Ukulele players learning new songs - Teachers managing chord sheets for lessons - Bands rehearsing with organised digital charts ChordLibre combines intelligent organisation with performance-ready reliability, ensuring your chord sheets are always available when you need them.

Screenshots

Drum Surgeon AUv3 Plugin4 screens

Verdict

The call

The clearest difference is price: ChordLibre at Free against Drum Surgeon AUv3 Plugin's $9.99. ChordLibre also leads on update cadence (every 2 months vs every 29 months). Drum Surgeon AUv3 Plugin's advantage is in-app purchases (none vs 1) and device support (3 vs 1). On ads 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

ChordLibre is free to download; Drum Surgeon AUv3 Plugin costs $9.99 up front. ChordLibre sells 1 one-off in-app purchase. Drum Surgeon AUv3 Plugin asks for nothing beyond the download.

UpkeepUpdate frequency

Drum Surgeon AUv3 Plugin ships an update every 29 months, ChordLibre every 2 months. The most recent releases landed on November 3, 2026 and October 25, 2026 respectively.

Scorecard5 real differences · 5 level
Drum Surgeon AUv3 Plugin versus ChordLibre: the parameters behind the verdict, then further details
ParameterDrum Surgeon AUv3 PluginChordLibre
Price$9.99Free — better
Rating4.6 (11 ratings) — better—
Positive reviews80.0% of reviews—
Number of ratings11 — better—
Update frequencyEvery 29 monthsEvery 2 months — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationPaid—
DevicesiPhone, iPad, iPod — betteriPad
Requires iOS13 — better18.1
Further details — not scored
Size5 MB4 MB
Age rating4+4+
Developer4Pockets.comY McCabe-Costa

In-app purchases

None

Drum Surgeon AUv3 Plugin

No in-app purchases

1 purchases

ChordLibre

One-time1
  • ChordLibre Support Tip$0.99

Questions

Is Drum Surgeon AUv3 Plugin free?
Drum Surgeon AUv3 Plugin costs $9.99, with no in-app purchases.
Is ChordLibre free?
ChordLibre is free to download, with in-app purchases available.
Do Drum Surgeon AUv3 Plugin or ChordLibre have ads?
Neither Drum Surgeon AUv3 Plugin nor ChordLibre shows ads.
Which is updated more often, Drum Surgeon AUv3 Plugin or ChordLibre?
Drum Surgeon AUv3 Plugin ships an update every 29 months, and ChordLibre every 2 months. Most recently, Drum Surgeon AUv3 Plugin was updated on November 3, 2026 and ChordLibre on October 25, 2026.

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