Comparison

Undulator vs WOOTT

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

Head to head
About

Undulator

This app offers a classic modulated tremolo effect inspired by a renowned hardware processor. It allows musicians to add rhythmic movement, ethereal feedback, and detuned echoes to various instruments and samples, creating evolving soundscapes and dynamic textures.

Highlights
  • Modulated tremolo effect
  • Ethereal feedback and detuned echoes
  • AM/FM modulation
  • Tempo sync
  • Real-time ribbon control
  • Multiple modulation waveforms
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Undulator is Eventide’s classic modulated tremolo effect from the iconic H3000 effects processor. This unique, rhythmic effect combines ethereal feedback and detuned echos, run through an AM / FM modulated tremolo. Whether used for manipulating samples or adding movement to strings, pads, guitars, and keys, Undulator is a muse for creative musicians. Add Undulator into your plug-ins collection for the most playable tremolo-style effect on your DAW or iOS device. Undulator excels at evolving pads, sync’d chops, and time-lapsing dreamy soundscapes. Combined with a multi-tap delay and powerful tremolo, Undulator’s controls give any sound sustain and shape. This is perfect for transforming ordinary synths, keys, guitars, and even vocals into evolving pads, tempo synced production elements, or ethereal and fluctuant delays. Simply put, Undulator can make shorter sounds into longer layered effects, and give sustaining sounds shape and rhythmic character. Use the Ribbon to morph tremolo patterns into vacillating and varying rhythmic territories. This can be effective for calling attention to synth pads and creating a state of flux or rarity which is otherwise arduous to achieve. - Turn up the MIX to increase the dry/effect ratio. - Utilize multiple modulation waveform shapes and sources to alter the rhythmic feel. - Subtly finesse detuning of delays by using SPREAD. - Add FEEDBACK to accentuate delays or create infinite loops. - The Secondary LFO determines how fast the depth and speed modulation “wiggle” their targets. - Lock the tremolo to tempo using SYNC. - RETRIG at the top of the waveform for a more predictable effect. - RIBBON lets you ‘play’ the effect in real-time and provides dynamic and fluid control to morph back and forth between the settings of your choice. - SLOW/FAST button toggles on a “Slow LFO” mode. Holding it down to “BRAKE” temporarily slows down the LFOs at a constant rate until released. - Update the tremolo speed in real time using the TAP button. - Available as an AUv3 plug-in and Standalone App.

About

WOOTT

This audio effect plugin enhances sounds by simultaneously compressing loud elements and amplifying quiet ones. It's designed to add massive proportions, aggressive edges, and bring out subtle details in audio, making it ideal for producers looking to add hype and excitement to their tracks.

Highlights
  • Triple band dynamics algorithm
  • Simultaneous downwards and upwards compression
  • Dedicated limiter per band
  • AUv3 audio unit effect plugin
  • Universal support (iOS and macOS)
  • Multi-output capability
  • Mono switch for low-band signal
Features
Currently charting
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WOOTT is an Audio Unit plugin (AUv3 audio effect) inspired by the infamous OTT sound. WOOTT uses a triple band dynamics algorithm with simultaneous downwards AND upwards compression, and adds a dedicated limiter to each band. So what's all that techno mumbojumbo good for? 1. First, it slams all the loud, dominant aspects of your sound 2. Next it blows up all the subtle quiet bits that were hiding below As a result, it's perfect for: - Blowing up average sounds to massive proportions - Giving an aggressive sharp edge to synthesizer filters - Bringing out subtle details and movement that would otherwise get lost in the mix (in a hamfisted way, though) - Dusting off old breakbeat samples and loops - Hyping specific aspects of your synth lines - Making generally boring things more interesting WOOTT features: - AUv3 audio unit effect plugin - Universal (all iPads and iPhones supported + MacOS M & Intel) - Runs in all your favorite AUv3 plugin hosts: Cubasis, AUM, Beatmaker 3, Nanostudio 2, Garageband, etc. - Multi-output (requires compatible host) for post-processing the individual bands - Low-resource, so stack as many of them as you like - "[WO]OTT all the things!" - Downwards *and* upwards compressors (a rare feature on conventional dynamics plugins) - Smart soft limiter per band, adapts to its own band's specific settings - Mono switch makes low-band signal monaural for an extra tight bass Note: this is not a subtle effect. If subtle and minimal are what you're after, this is not the droid you're looking for :-)

Screenshots

Undulator3 screens
WOOTT3 screens

Verdict

The call

The clearest difference is rating: WOOTT at 4.9 against Undulator's 4.3. WOOTT also leads on price ($4.99 vs $7.99) and chart position (#171 vs unranked). On review sentiment, update cadence, ads and in-app purchases 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

Undulator costs $7.99 and WOOTT $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

WOOTT holds the better App Store score, 4.9 against 4.3. Both are backed by a comparable volume of ratings — 11 and 54 respectively. Written reviews point the same way: 86% of Undulator's written reviews are positive against 92% of WOOTT's.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on October 14, 2026 and October 19, 2026 respectively.

Scorecard4 real differences · 7 level
Undulator versus WOOTT: the parameters behind the verdict, then further details
ParameterUndulatorWOOTT
Price$7.99$4.99 — better
Rating4.3 (11 ratings)4.9 (54 ratings) — better
Positive reviews85.7% of reviews91.7% of reviews — better
Number of ratings1154 — better
Update frequencyEvery 2 monthsEvery 2 months
AdsNoNo
In-app purchasesNoNo
MonetizationPaidPaid
Best chart rank—#171 — better
DevicesiPhone, iPad, iPodiPhone, iPad, iPod, Mac — better
Requires iOS11.0 — better12.0
Further details — not scored
Size16 MB2 MB
Age rating4+4+
DeveloperEventideBram Bos

Customer experience

Undulator

All ratings11 ratings
Positive81.8%
Neutral0.0%
Negative18.2%
Written reviews7 reviews
Positive85.7%
Neutral0.0%
Negative14.3%

WOOTT

All ratings54 ratings
Positive96.3%
Neutral1.9%
Negative1.9%
Written reviews24 reviews
Positive91.7%
Neutral4.2%
Negative4.2%

In-app purchases

None

Undulator

No in-app purchases

None

WOOTT

No in-app purchases

Questions

Is Undulator free?
Undulator costs $7.99, with no in-app purchases.
Is WOOTT free?
WOOTT costs $4.99, with no in-app purchases.
Which has better reviews, Undulator or WOOTT?
WOOTT is rated higher. Undulator averages 4.3 out of 5 from 11 ratings, while WOOTT averages 4.9 from 54 ratings.
Do Undulator or WOOTT have ads?
Neither Undulator nor WOOTT shows ads.
Which is updated more often, Undulator or WOOTT?
Undulator ships an update every 2 months, and WOOTT every 2 months. Most recently, Undulator was updated on October 14, 2026 and WOOTT on October 19, 2026.

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