Comparison

Lagrange vs FabFilter Twin 3

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

Head to head
About

Lagrange

This app is a hybrid synthesizer that simplifies sound creation by using oscillator algorithms to manage complex parameters. It focuses on quickly achieving desired sounds by selecting the appropriate oscillator type.

Highlights
  • AUv3-compatible synthesizer
  • Simplified sound creation
  • Oscillator algorithms
  • Quick sound selection
  • Hybrid synthesis
Features
Read full description

Lagrange is an AUv3-compatible synthesizer designed to simplify sound creation by concealing complex parameter adjustments within oscillator algorithms. Rather than emphasizing precise sound design, this synthesizer prioritizes selecting the right oscillator type to quickly achieve the sound that suits your needs. For more detailed information about the product, please visit the website. The website offers detailed product descriptions, manuals and videos, as well as important notices. https://icegear.net/

About

FabFilter Twin 3

This powerful virtual analog synthesizer offers a redesigned interface and expanded sound-shaping capabilities. Create a wide range of synth sounds with advanced oscillators, filters, a flexible modulation system, and an all-new FX section. It supports MIDI input and MPE for expressive performances.

Highlights
  • Virtual analog synthesis
  • Flexible oscillators and filters
  • Advanced modulation system
  • All-new FX section
  • MPE support
  • Arpeggiator
  • Preset browser
Features
Read full description

Since its first release in 2005, FabFilter Twin has been famous for its filter quality and oscillator sound. FabFilter Twin 3 expands and improves on its predecessors in every area, including a complete redesign of the GUI and workflow, more and better oscillators and filters, a radically powered-up modulation system, an all-new FX section, and much more. Sonically versatile, supremely intuitive, and spectacularly ‘analog’, Twin 3 is a dream instrument for creating synth sounds of all kinds, from basses, leads, and pads to plucks, drums, effects, and beyond. The Twin 3 app lets you play via the on-screen keyboard or a MIDI keyboard connected to your iPad. To use Twin 3 as a plug-in, you need an AUv3-compatible host app like Auria, AUM or Cubasis. Twin 3 will appear in the list of Audio Unit extensions for instrument plug-ins in the host app. Key features: - Virtual analog synth featuring four flexible oscillators, four filters, six FX modules, and a vast modulation system with a wealth of flexible source signal generators, drag and drop source/target routing, and no limit to the number of modulation assignments that can be made - Fully redesigned, greatly simplified interface with easier workflow - Completely overhauled modulation system with redesigned modulation sources, and floating slot and FX panels - All-new FX section, housing Reverb, Delay, Chorus, Phaser, Drive, and Compressor modules - MPE support for expressive, per-note modulation - Arpeggiator with Groove/Legato controls, note order, latch options, and more - Full-featured preset browser, with tags, favorites, and search and filter functions, and new factory preset library - Per Oscillator polyphony mode: each incoming note triggers a different oscillator - Bell, Shelf, and Notch vintage-style EQ filter shapes - 6dB/octave filter slope option - Modulatable filter Cutoff/Peak Offset knobs knobs, for adjusting all filters at once - High Quality mode — 4x oversampling - Transient mode turns Envelope Followers into transient detectors - Curve adjustment handles for EG Attack, Decay, and Release stages - Slider mode (vertical-only operation) and Range setting (toggles between bipolar and unipolar behavior) for XY controllers - Hide all modulation sources except for XY controllers and Sliders at a click - Native sustain pedal support - Even better oscillator and filter sound quality, with analog-modelled drift - Maximum number of voices doubled from 32 to 64 - Lower minimum Envelope Generator Attack, Decay, and Release times - Maximum number of XY controllers/Sliders increased to six - Envelope Generator Threshold, XLFO Balance, and Frequency Offset made available as modulation targets - Modulation sources can be renamed - Maximum number of modulation slots increased to 100 - Legato mode for MIDI-triggered XLFO - Range options added to MIDI Sources: Negative (-1 to 0), Centered (-1 to 1), and Positive (0 to 1) - Carefully designed and curated factory presets, plus the ability to save your own presets - Undo/redo and A/B comparison "FabFilter Twin is one of the best virtual analogues we've heard so far, and at this price point it's well worth the investment!" — Computer Music "Once I found FabFilter Twin, I immediately noticed how great it works and how amazing it sounds!" — George Morel

Screenshots

Lagrange4 screens

Verdict

The call

The clearest difference is price: Lagrange at $8.00 against FabFilter Twin 3's $24.99. Lagrange also leads on update cadence (every 2 weeks vs every 10 months) and rating (4.8 vs 4.6). 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

Lagrange costs $8.00 and FabFilter Twin 3 $24.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

Lagrange holds the better App Store score, 4.8 against 4.6. Both are backed by a comparable volume of ratings — 57 and 42 respectively. Written reviews point the same way: 95% of Lagrange's written reviews are positive against 86% of FabFilter Twin 3's.

UpkeepUpdate frequency

Lagrange ships an update every 2 weeks, FabFilter Twin 3 every 10 months. Both last shipped on November 7, 2026.

Scorecard6 real differences · 4 level
Lagrange versus FabFilter Twin 3: the parameters behind the verdict, then further details
ParameterLagrangeFabFilter Twin 3
Price$8.00 — better$24.99
Rating4.8 (57 ratings) — better4.6 (42 ratings)
Positive reviews95.5% of reviews — better86.2% of reviews
Number of ratings57 — better42
Update frequencyEvery 2 weeks — betterEvery 10 months
AdsNoNo
In-app purchasesNoNo
MonetizationPaidPaid
DevicesiPhone, iPad, iPod — betteriPad
Requires iOS12.0 — better14.0
Further details — not scored
Size8 MB14 MB
Age rating4+4+
DevelopericeWorks, Inc.FabFilter

Customer experience

Lagrange

All ratings57 ratings
Positive96.5%
Neutral0.0%
Negative3.5%
Written reviews22 reviews
Positive95.5%
Neutral4.5%
Negative0.0%

FabFilter Twin 3

All ratings42 ratings
Positive92.9%
Neutral2.4%
Negative4.8%
Written reviews29 reviews
Positive86.2%
Neutral6.9%
Negative6.9%

In-app purchases

None

Lagrange

No in-app purchases

None

FabFilter Twin 3

No in-app purchases

Questions

Is Lagrange free?
Lagrange costs $8.00, with no in-app purchases.
Is FabFilter Twin 3 free?
FabFilter Twin 3 costs $24.99, with no in-app purchases.
Which has better reviews, Lagrange or FabFilter Twin 3?
Lagrange is rated higher. Lagrange averages 4.8 out of 5 from 57 ratings, while FabFilter Twin 3 averages 4.6 from 42 ratings.
Do Lagrange or FabFilter Twin 3 have ads?
Neither Lagrange nor FabFilter Twin 3 shows ads.
Which is updated more often, Lagrange or FabFilter Twin 3?
Lagrange ships an update every 2 weeks, and FabFilter Twin 3 every 10 months. Most recently, Lagrange was updated on November 7, 2026 and FabFilter Twin 3 on November 7, 2026.

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