Comparison

auGEN X vs MolliLooper

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

Head to head
About

auGEN X

This app generates a wide variety of audio signals for both creative sound design and precise audio system testing. It features a versatile oscillator, noise generator, and impulse generator, functioning as a standalone app or an AUv3 Audio Unit Extension.

Highlights
  • Full-featured audio oscillator with 4 wave shapes
  • High-quality noise generator (white and pink)
  • Impulse generator for reverb testing
  • AUv3 Audio Unit Extension and Stand-Alone App
  • MIDI In and BPM Sync support
  • Precise signal control with intuitive UI
Features
Read full description

auGEN X bridges the creative musical world of artists with the exacting scientific world of audio engineers. What started as a precision audio test utility has grown into a fun experimental sound design instrument. On one end use auGEN X to help set up, test, calibrate, and optimize your audio system. On the other use it to create a wide variety of interesting sounds. auGEN X has a full-featured audio oscillator, a high quality noise generator, and an impulse generator. The simple yet powerful user interface is designed for fast, precise, intuitive control over your signals. auGEN X works both as a Stand-Alone App and as an AUv3 Audio Unit Extension responding to MIDI In and BPM Sync from Hosts. I started making this app because as an audio electronics engineer I could not find a single audio generator that does everything that I require AND is an AUv3 Audio Unit. auGEN X has expanded into a musical tool for exploring and learning sound design. Our goal is for auGEN X to be an Essential in your audio toolbox. We hope you enjoy it and we’re excited to hear the cool things that you do with auGEN X! "I really see this app becoming a standard and a must have component in one's iOS audio app arsenal." - Paul Henry, Paul Henry Pro Audio FEATURES - Oscillator - 3 Modes: Fixed, Frequency or Level Sweep - 4 Wave Shapes: Sine, Triangle, Rectangle, & Saw - Tri & Rect have a Duty Cycle control (1.0% to 99.0%) - Tri, Saw, & Rect are alias-suppressed yielding virtually alias-free performance at musical fundamental frequencies - 10 to 20,480 Hz extended audio frequency range (great for testing subwoofers!) - Full-featured Frequency or Level Sweep with 5 Types, settable Direction, & selectable Repeat or 1-Shot Mode - Sweep Period has a wicked wide range from 1/10,000th of a second to 100 seconds and can alternatively be set as a Sweep Rate in Hz or BPM - Wide sweep range allows for FM & AM style sounds - Noise Generator - 2 Modes: Fixed or Level Sweep - White or Pink Noise - Pink Noise conforms to SMPTE Standard 2095-1:2015 Calibration Reference Wideband Digital Pink Noise Signal - Impulse Generator (useful for checking reverb algorithms) - Impulse Width can be set in samples - AUv3 Audio Unit Extension or Stand-Alone App - Verified to work great in AUv3 Hosts such as GarageBand, Cubasis, AUM, apeMatrix, BeatMaker 3, & Auria Pro - As a Stand-Alone App audio is sent to iPad's built-in speakers, Headphone/Line Out, or to any iOS-compatible USB audio interface connected to the Lightning jack APPLICATIONS - Creative experimental sound design - Sound effects for film, TV, & games - Great chiptune style sounds - Synthesize sirens or alarms - Test, characterize audio equipment - Set up or dial in a home theater - Tune car audio systems - Test subwoofers - Hearing tests - Ear training - Vibration analysis SPECIFICATIONS - Audio signal path uses state of the art Double Precision 64-bit Floating Point for maximum accuracy - Stereo out - Selectable Pan Laws include Linear & Constant Power Panning - Supports 44.1, 48, 88.2, & 96 kHz sample rates - User Guide embedded in App - no internet connection required to read it SYSTEM REQUIREMENTS - Compatible with iOS 9.0 & up (iPad 2, iPad mini (1st Generation), & up) - Support way back to iOS 9 means auGEN X works on every iPad model (except the very first iPad). Breathe new life into your old iPad by using auGEN X to make it a dedicated, precision audio source. - AUv3 Audio Unit Extensions require iPad 4, iPad mini 2, and up - 88.2 & 96 kHz sample rate require iOS-compatible USB audio interface connected to the Lightning jack Watch demos & tutorials on auDSPr's YouTube channel. Subscribe on YouTube: https://youtube.com/channel/UCRZm2cKWVJVfK-l9zrnMeFg Like Us on Facebook: https://facebook.com/AUDSPr-1392948064183211 Follow Us on Twitter: https://twitter.com/auDSPr Keep your ears and eyes open for more upcoming auDSPr audio apps!

About

MolliLooper

This real-time stereo effect app allows for instant looping and filtering of audio. Designed for live performance, it continuously records input for immediate playback and offers adjustable loop timing synced to a host clock. It also features a resonant filter and stutter/freeze capabilities.

Highlights
  • Real-time stereo looping
  • Instant recording/looping
  • Host clock sync
  • Adjustable loop timing
  • Lowpass/highpass resonant filter
  • Stutter/freeze effect
  • AUv3 plugin support
Features
Read full description

Molli Looper is a realtime stereo effect for looping and filtering. Intended mainly as a live performance tool, no preparation is needed to trigger loop recording - input is constantly recorded in the background to be triggered whenever it is needed.   Loop timing is synced to host clock, and can be adjusted from multi-bar loops right down to 16th note drills.   The looped or unlooped audio is then passed though a lowpass -> neutral -> highpass resonant filter, based on a 4 pole ladder design for lush analogue style sound.   You can use Molli Looper either as iOS Standalone app or as AUv3 plugin. FEATURES: - Combination of looper and stutter/freeze - Continuous recording: instant recording/looping - Runs in sync with host clock - Jumps to meaningful places in the recording: "Snap to grid" - Grid: 1/16, 1/8, 1/4, 1/2, 1, 2, 4, 8, 16, 32 beats - Ability to scroll through the recording - Lowpass/highpass resonant filter - Long Tap XY keeps filter position - Limiter/booster effect - Momentary Mode - Tap on Molli Looper icon for basic information

Screenshots

auGEN X3 screens
MolliLooper2 screens

Verdict

The call

The clearest difference is rating: MolliLooper at 5.0 against auGEN X's 4.6. MolliLooper also leads on price ($8.99 vs $9.99). auGEN X's advantage is iOS requirement (9.0 vs 11). On review sentiment, ratings volume, update cadence and 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

auGEN X costs $9.99 and MolliLooper $8.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

MolliLooper holds the better App Store score, 5.0 against 4.6. Both are backed by a comparable volume of ratings — 12 and 13 respectively. Written reviews complicate that: 86% of auGEN X's written reviews are positive against 82% of MolliLooper's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

auGEN X ships an update every 3 months, MolliLooper every 2 months. The most recent releases landed on November 6, 2026 and November 3, 2026 respectively.

Scorecard3 real differences · 7 level
auGEN X versus MolliLooper: the parameters behind the verdict, then further details
ParameterauGEN XMolliLooper
Price$9.99$8.99 — better
Rating4.6 (12 ratings)5.0 (13 ratings) — better
Positive reviews85.7% of reviews — better81.8% of reviews
Number of ratings1213 — better
Update frequencyEvery 3 monthsEvery 2 months — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaidPaid
DevicesiPhone, iPad, iPodiPhone, iPad, iPod, Mac — better
Requires iOS9.0 — better11
Further details — not scored
Size57 MB9 MB
Age rating4+4+
DeveloperauDSPrOliver Greschke (DE)

Customer experience

auGEN X

All ratings12 ratings
Positive91.7%
Neutral0.0%
Negative8.3%
Written reviews7 reviews
Positive85.7%
Neutral0.0%
Negative14.3%

MolliLooper

All ratings13 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews11 reviews
Positive81.8%
Neutral9.1%
Negative9.1%

In-app purchases

None

auGEN X

No in-app purchases

None

MolliLooper

No in-app purchases

Questions

Is auGEN X free?
auGEN X costs $9.99, with no in-app purchases.
Is MolliLooper free?
MolliLooper costs $8.99, with no in-app purchases.
Which has better reviews, auGEN X or MolliLooper?
MolliLooper is rated higher. auGEN X averages 4.6 out of 5 from 12 ratings, while MolliLooper averages 5.0 from 13 ratings.
Do auGEN X or MolliLooper have ads?
Neither auGEN X nor MolliLooper shows ads.
Which is updated more often, auGEN X or MolliLooper?
auGEN X ships an update every 3 months, and MolliLooper every 2 months. Most recently, auGEN X was updated on November 6, 2026 and MolliLooper on November 3, 2026.

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